Home  
Site Partners: SpotterGuides Veloce Books  
Related Sites: Your Link Here  

Go Back   TenTenths Motorsport Forum > Saloon & Sportscar Racing > Sportscar & GT Racing > North American Racing

Reply
 
Thread Tools Display Modes
Old 28 Jan 2019, 21:57 (Ref:3880284)   #1
racerxf12004
Rookie
 
Join Date: Jun 2010
Location:
Chino Hills California
Posts: 15
racerxf12004 should be qualifying in the top 10 on the grid
Mazda #55 on fire and no fire extinguishers...

I could not believe how long #55 was sitting there burning....if a driver was trapped in that car, there would have been a tragic outcome...
racerxf12004 is offline  
Quote
Old 28 Jan 2019, 23:20 (Ref:3880303)   #2
broadrun96
Veteran
 
broadrun96's Avatar
 
Join Date: Mar 2005
United States
Posts: 12,181
broadrun96 is the undisputed Champion of the World!broadrun96 is the undisputed Champion of the World!broadrun96 is the undisputed Champion of the World!broadrun96 is the undisputed Champion of the World!broadrun96 is the undisputed Champion of the World!broadrun96 is the undisputed Champion of the World!broadrun96 is the undisputed Champion of the World!broadrun96 is the undisputed Champion of the World!broadrun96 is the undisputed Champion of the World!broadrun96 is the undisputed Champion of the World!broadrun96 is the undisputed Champion of the World!
Quote:
Originally Posted by racerxf12004 View Post
I could not believe how long #55 was sitting there burning....if a driver was trapped in that car, there would have been a tragic outcome...
And if it was magnesium it would have exploded in a fireball? He wasn't trapped and pulled off track. It wasn't a wreck that caused the fire and the car wasn't immediately withdrawn from the race so the fuss is because??
broadrun96 is online now  
Quote
Old 29 Jan 2019, 01:24 (Ref:3880320)   #3
joeb
Race Official
Veteran
 
joeb's Avatar
 
Join Date: Oct 2007
United States
Baton Rouge, LA
Posts: 16,586
joeb is the undisputed Champion of the World!joeb is the undisputed Champion of the World!joeb is the undisputed Champion of the World!joeb is the undisputed Champion of the World!joeb is the undisputed Champion of the World!joeb is the undisputed Champion of the World!joeb is the undisputed Champion of the World!joeb is the undisputed Champion of the World!joeb is the undisputed Champion of the World!joeb is the undisputed Champion of the World!joeb is the undisputed Champion of the World!
Quote:
Originally Posted by broadrun96 View Post
And if it was magnesium it would have exploded in a fireball? He wasn't trapped and pulled off track. It wasn't a wreck that caused the fire and the car wasn't immediately withdrawn from the race so the fuss is because??
There driver didn't know where the fire suppression system was, or it malfunctioned. Both of those things are problematic. Although probably not as problematic as the car constantly catching fire. LOL
joeb is offline  
Quote
Old 29 Jan 2019, 03:58 (Ref:3880341)   #4
fieldodreams79
Veteran
 
fieldodreams79's Avatar
 
Join Date: Oct 2007
United States
The Dirty South
Posts: 12,236
fieldodreams79 is the undisputed Champion of the World!fieldodreams79 is the undisputed Champion of the World!fieldodreams79 is the undisputed Champion of the World!fieldodreams79 is the undisputed Champion of the World!fieldodreams79 is the undisputed Champion of the World!fieldodreams79 is the undisputed Champion of the World!fieldodreams79 is the undisputed Champion of the World!fieldodreams79 is the undisputed Champion of the World!fieldodreams79 is the undisputed Champion of the World!fieldodreams79 is the undisputed Champion of the World!fieldodreams79 is the undisputed Champion of the World!
My guess is that they were surprised to see a Mazda on fire..



wait, no, that can't be the answer...
fieldodreams79 is offline  
__________________
"Knowing that it's in you and you never let it out
Is worse than blowing any engine or any wreck you'll ever have."
-Mike Cooley
Quote
Old 29 Jan 2019, 04:11 (Ref:3880343)   #5
broadrun96
Veteran
 
broadrun96's Avatar
 
Join Date: Mar 2005
United States
Posts: 12,181
broadrun96 is the undisputed Champion of the World!broadrun96 is the undisputed Champion of the World!broadrun96 is the undisputed Champion of the World!broadrun96 is the undisputed Champion of the World!broadrun96 is the undisputed Champion of the World!broadrun96 is the undisputed Champion of the World!broadrun96 is the undisputed Champion of the World!broadrun96 is the undisputed Champion of the World!broadrun96 is the undisputed Champion of the World!broadrun96 is the undisputed Champion of the World!broadrun96 is the undisputed Champion of the World!
They fixed the problems so they removed the fire suppression in favor of more oil for the turbo. More oil means they'll dissipate the heat better and no fire?
broadrun96 is online now  
Quote
Old 29 Jan 2019, 15:12 (Ref:3880439)   #6
Coach Ep
Veteran
 
Coach Ep's Avatar
 
Join Date: Jun 2009
Posts: 4,483
Coach Ep is going for a new lap record!Coach Ep is going for a new lap record!Coach Ep is going for a new lap record!Coach Ep is going for a new lap record!Coach Ep is going for a new lap record!Coach Ep is going for a new lap record!
It was cold, Mazda tried to warm everyone up!
Coach Ep is offline  
Quote
Old 30 Jan 2019, 15:30 (Ref:3880688)   #7
joeb
Race Official
Veteran
 
joeb's Avatar
 
Join Date: Oct 2007
United States
Baton Rouge, LA
Posts: 16,586
joeb is the undisputed Champion of the World!joeb is the undisputed Champion of the World!joeb is the undisputed Champion of the World!joeb is the undisputed Champion of the World!joeb is the undisputed Champion of the World!joeb is the undisputed Champion of the World!joeb is the undisputed Champion of the World!joeb is the undisputed Champion of the World!joeb is the undisputed Champion of the World!joeb is the undisputed Champion of the World!joeb is the undisputed Champion of the World!
A little article on Mazda's day. Not flattering.

https://autoweek.com/article/imsa/an...n=awdailydrive
joeb is offline  
Quote
Old 30 Jan 2019, 16:00 (Ref:3880693)   #8
skycafe
Race Official
Veteran
 
skycafe's Avatar
 
Join Date: May 2003
United States
Water on three sides
Posts: 4,154
skycafe is going for a new lap record!skycafe is going for a new lap record!skycafe is going for a new lap record!skycafe is going for a new lap record!skycafe is going for a new lap record!skycafe is going for a new lap record!
Quote:
Originally Posted by joeb View Post
A little article on Mazda's day. Not flattering.

https://autoweek.com/article/imsa/an...n=awdailydrive
Ouch! But, at this point it would be difficult to spin positive.

There is a clip on FaceBook of the 77 car stopped at the chicane, Bernhard leaning into the cockpit and fidgeting around in a panic, the large "MAZDA" lettering on the BHF is illuminated by the trackside lighting, but also the flames flickering out of the exhaust area. That is a pretty sad image, and it will get more play then Pole Position did.

Maybe it is all too much thinking out of the box?.

Last edited by skycafe; 30 Jan 2019 at 16:03. Reason: Spell fix
skycafe is offline  
__________________
You live and learn. At any rate, you live.
Douglas Adams
Quote
Old 30 Jan 2019, 16:10 (Ref:3880696)   #9
Coach Ep
Veteran
 
Coach Ep's Avatar
 
Join Date: Jun 2009
Posts: 4,483
Coach Ep is going for a new lap record!Coach Ep is going for a new lap record!Coach Ep is going for a new lap record!Coach Ep is going for a new lap record!Coach Ep is going for a new lap record!Coach Ep is going for a new lap record!
Quote:
Originally Posted by joeb View Post
A little article on Mazda's day. Not flattering.

https://autoweek.com/article/imsa/an...n=awdailydrive
You'll have to admire Mazda's and Doohan's determination to get the car to victory circle. The project has many parallels with Toyota's LM obsession - one they were finally put to rest last year. We will see Mazda in victory circle this year, last years races at Sebring and Laguna Seca especially showed they have the potential. It's only a matter of time before that potential is converted, sometimes it just takes longer than anticipated. No need to shoot them down or openly question if they will be back next year (like the article at some point suggests).

Determination, persistence, hard work and professionalism has always paid off - it will again for Mazda.
Coach Ep is offline  
Quote
Old 30 Jan 2019, 17:47 (Ref:3880716)   #10
Maelochs
Veteran
 
Maelochs's Avatar
 
Join Date: Jan 2012
Posts: 4,434
Maelochs will be entering the Motorsport Hall of FameMaelochs will be entering the Motorsport Hall of FameMaelochs will be entering the Motorsport Hall of FameMaelochs will be entering the Motorsport Hall of FameMaelochs will be entering the Motorsport Hall of FameMaelochs will be entering the Motorsport Hall of FameMaelochs will be entering the Motorsport Hall of FameMaelochs will be entering the Motorsport Hall of FameMaelochs will be entering the Motorsport Hall of Fame
"sometimes it just takes longer than anticipated"?

I was a big Mazda fan back when SpeedSource was actually winning in Mazdas. I was intrigued when Mazda won the special Diesel class. I was excited when Mazda moved to prototypes. It's been what, six years?

The diesel was a nice idea, but Nice ideas rarely finish, apparently. The AER unit was overworked and uncompetitive in the Dyson Lola and everywhere else, it seems. With the latest set of upgrades .... the engines burns as well as all the previous iterations.

Sometimes determination, persistence, hard work, and professionalism (which has not always been on display in some of the pit work) are not enough. Sometimes a flawed design cannot be overcome.

Ford had the GT, the GT Mark II, and the GT Mark IV ... and also the J-car and the F3L. "Professionalism" included walking away from the stuff that didn't work.

Maybe Mazda will succeed---or maybe the lack of torque will always kill the car in traffic or in heads-up duels with its competitors. Maybe the engine will finally be reliable, despite being pushed to ever-higher limits----or maybe we will see another season of near misses when the car burns down while leading or hunting for the lead int he final laps ... or much sooner.

When the mere mention of your car elicits images of barbecues and camp fires, when people ask what happened and the answer "It's Mazda" and no one asks further ....

They have the potential (particularly at long races) and I would love to see them convert. What I have seen is late-race failure, or mid-race failure, and usually flame shooting out of the engine compartment.

There is no guarantee that they will realize their "potential" just through persistence.

They got two cars on the podium at Petit last year. I don't think they could have won, and the AXR #5's fuel shortage helped ... but they finished near the front (5 and 7 seconds off.) Can the "new, improved" engine survive a long race? it's possible.

However ... five years to hit the podium?

Methinks Mazda might want to give the program a little more cash and maybe work on a better engine design? it seems likely that with the current torque deficit (not to mention the utter unreliability) that the car will win based more on luck than anything else.

If the car had a decent engine I think they'd have won long ago.

I have no idea whether Mazda's withdrawal form most racing means the corporation wants to focus on a few, winning efforts, or plans to scale back further. But at some point "still knocking on the door" becomes "still banging one's head against the wall."

If Mazda is really "obsessed" with IMSA success ... they might need to deepen that obsession. Admiring persistence is fine ... but if their goal is to be admired for success, they might want to look at a blank sheet of paper.
Maelochs is offline  
Quote
Old 30 Jan 2019, 17:56 (Ref:3880721)   #11
TF110
Veteran
 
TF110's Avatar
 
Join Date: Sep 2010
United States
Posts: 15,589
TF110 is going for a new world record!TF110 is going for a new world record!TF110 is going for a new world record!TF110 is going for a new world record!TF110 is going for a new world record!TF110 is going for a new world record!TF110 is going for a new world record!
They need to drop the AER engine. It's not as simple as that, but imo, that's the biggest and should be the first step.
TF110 is offline  
Quote
Old 30 Jan 2019, 23:58 (Ref:3880777)   #12
HopAlong
Racer
 
Join Date: Oct 2017
Posts: 111
HopAlong should be qualifying in the top 10 on the grid
I don't think much is wrong with the AER on the power front, their 4.0 V8 P1 engine was more than a match for the diesels, the new P1 V6 was better than the others for power and so was the 2.0 4cyl. I'm just shocked how its been the same issues for years. I was watching the 2009 Sebring 12 Hours on YouTube and sure enough both P1 AER teams had retired after an hour and a half, then 2-3 hours in, both Dyson Mazdas went pop.

Is the engine a new design or is it still related to the early 2000s 675/P2 motor?
HopAlong is offline  
Quote
Old 31 Jan 2019, 00:18 (Ref:3880780)   #13
skycafe
Race Official
Veteran
 
skycafe's Avatar
 
Join Date: May 2003
United States
Water on three sides
Posts: 4,154
skycafe is going for a new lap record!skycafe is going for a new lap record!skycafe is going for a new lap record!skycafe is going for a new lap record!skycafe is going for a new lap record!skycafe is going for a new lap record!
It is a bespoke design https://www.aerltd.com/our-engines/p...gle-turbo-2.0/
skycafe is offline  
__________________
You live and learn. At any rate, you live.
Douglas Adams
Quote
Old 31 Jan 2019, 14:57 (Ref:3880903)   #14
joeb
Race Official
Veteran
 
joeb's Avatar
 
Join Date: Oct 2007
United States
Baton Rouge, LA
Posts: 16,586
joeb is the undisputed Champion of the World!joeb is the undisputed Champion of the World!joeb is the undisputed Champion of the World!joeb is the undisputed Champion of the World!joeb is the undisputed Champion of the World!joeb is the undisputed Champion of the World!joeb is the undisputed Champion of the World!joeb is the undisputed Champion of the World!joeb is the undisputed Champion of the World!joeb is the undisputed Champion of the World!joeb is the undisputed Champion of the World!
Quote:
Originally Posted by HopAlong View Post
I don't think much is wrong with the AER on the power front, their 4.0 V8 P1 engine was more than a match for the diesels, the new P1 V6 was better than the others for power and so was the 2.0 4cyl. I'm just shocked how its been the same issues for years. I was watching the 2009 Sebring 12 Hours on YouTube and sure enough both P1 AER teams had retired after an hour and a half, then 2-3 hours in, both Dyson Mazdas went pop.

Is the engine a new design or is it still related to the early 2000s 675/P2 motor?
Quote:
Originally Posted by skycafe View Post
AER also make a turbo 4 cylinder engine for the Indy Lights series, it has less power than the Mazda, but they don't have any issues with the motor going boom. Would be interesting to see what exactly has failed in the Mazda during each engine blow. Is it the same component? or are there always new surprises?
joeb is offline  
Quote
Old 31 Jan 2019, 15:35 (Ref:3880915)   #15
canaglia
Veteran
 
Join Date: Aug 2016
Posts: 1,920
canaglia should be qualifying in the top 10 on the gridcanaglia should be qualifying in the top 10 on the grid
Quote:
Originally Posted by HopAlong View Post
I don't think much is wrong with the AER on the power front, their 4.0 V8 P1 engine was more than a match for the diesels, the new P1 V6 was better than the others for power and so was the 2.0 4cyl. I'm just shocked how its been the same issues for years. I was watching the 2009 Sebring 12 Hours on YouTube and sure enough both P1 AER teams had retired after an hour and a half, then 2-3 hours in, both Dyson Mazdas went pop.

Is the engine a new design or is it still related to the early 2000s 675/P2 motor?

I agree AER engines don't lack of power, in fact the updated 2L mazda is using this season should be the one with the highest power output considering the high top speed marked by a dramatically high drag designed car forced to use high downforce setting by bop too.
Unfortunately any of theese engines ever lasted 24 hours as far I know. That's simple.


Guess that for a small 2L engine is quite hard to endure to about 2.5bar relentless turbo pressure... infact peugeot 908HDi turbodiesel engines were in that range of turbo boost but were 5.5L.
Make the engine with more robust parts and increase displacement to 2.4L should help to improve reliability and overall performances.

But guess AER makes engine to have a profit, in that case engine would be too expensive to produce.
canaglia is offline  
Quote
Old 31 Jan 2019, 15:37 (Ref:3880918)   #16
Deleted
Registered User
Veteran
 
Join Date: Jun 2010
Posts: 10,744
Deleted will be entering the Motorsport Hall of FameDeleted will be entering the Motorsport Hall of FameDeleted will be entering the Motorsport Hall of FameDeleted will be entering the Motorsport Hall of FameDeleted will be entering the Motorsport Hall of FameDeleted will be entering the Motorsport Hall of FameDeleted will be entering the Motorsport Hall of FameDeleted will be entering the Motorsport Hall of FameDeleted will be entering the Motorsport Hall of Fame
One of the best recent quotes regarding AER comes from a rival
https://www.motorsport.com/wec/news/...-snub/3154793/

"An engine which has been developed for years, yet failed to finish at Le Mans in June".

(it's not entirely true but pretty accurate, even the AERs that have 'finished' have finished poorly)
Deleted is offline  
Quote
Old 31 Jan 2019, 18:06 (Ref:3880946)   #17
Maelochs
Veteran
 
Maelochs's Avatar
 
Join Date: Jan 2012
Posts: 4,434
Maelochs will be entering the Motorsport Hall of FameMaelochs will be entering the Motorsport Hall of FameMaelochs will be entering the Motorsport Hall of FameMaelochs will be entering the Motorsport Hall of FameMaelochs will be entering the Motorsport Hall of FameMaelochs will be entering the Motorsport Hall of FameMaelochs will be entering the Motorsport Hall of FameMaelochs will be entering the Motorsport Hall of FameMaelochs will be entering the Motorsport Hall of Fame
I have posted a lengthy defense of AER elsewhere and don't need to do it again. AER makes fine motors. However ... the IMSA version, or the three (or is it four?) versions which have run ALMS/IMSA (starting with the MZR, I think) have never provided both power and reliability sufficient to make the cars competitive.

While not every Mazda loss or retirement can be laid at the feet of the AER engine ... quite a few can. And it will never have the torque of its rivals, which means it will always lose a head-to-head duel, .... can't handle traffic, or slower corners, as well as the bigger motors.

I agree with canaglia ... the motor needs a clean-sheet redesign and significant displacement boost.
Maelochs is offline  
Quote
Old 31 Jan 2019, 19:39 (Ref:3880971)   #18
broadrun96
Veteran
 
broadrun96's Avatar
 
Join Date: Mar 2005
United States
Posts: 12,181
broadrun96 is the undisputed Champion of the World!broadrun96 is the undisputed Champion of the World!broadrun96 is the undisputed Champion of the World!broadrun96 is the undisputed Champion of the World!broadrun96 is the undisputed Champion of the World!broadrun96 is the undisputed Champion of the World!broadrun96 is the undisputed Champion of the World!broadrun96 is the undisputed Champion of the World!broadrun96 is the undisputed Champion of the World!broadrun96 is the undisputed Champion of the World!broadrun96 is the undisputed Champion of the World!
Quote:
Originally Posted by Maelochs View Post
I have posted a lengthy defense of AER elsewhere and don't need to do it again. AER makes fine motors. However ... the IMSA version, or the three (or is it four?) versions which have run ALMS/IMSA (starting with the MZR, I think) have never provided both power and reliability sufficient to make the cars competitive.

While not every Mazda loss or retirement can be laid at the feet of the AER engine ... quite a few can. And it will never have the torque of its rivals, which means it will always lose a head-to-head duel, .... can't handle traffic, or slower corners, as well as the bigger motors.

I agree with canaglia ... the motor needs a clean-sheet redesign and significant displacement boost.
Quote:
Originally Posted by joeb View Post
AER also make a turbo 4 cylinder engine for the Indy Lights series, it has less power than the Mazda, but they don't have any issues with the motor going boom. Would be interesting to see what exactly has failed in the Mazda during each engine blow. Is it the same component? or are there always new surprises?
Exactly what Maelochs says, AER makes great products for most engines and appears to make season long durable engines. The Indy Lights engine is 2.0L with less power and torque but has to make it all season. Their GP3 (Project 57) engine makes slightly less again and it's almost twice the size but again is designed to make it all season. It just seems to scream 2.0L just isn't going to work for their needs and all evidence leans toward the age old adage about displacement.
broadrun96 is online now  
Quote
Old 2 Feb 2019, 13:48 (Ref:3881323)   #19
Turbodcc
Rookie
 
Join Date: Jan 2015
Posts: 54
Turbodcc should be qualifying in the top 10 on the grid
Quote:
Originally Posted by HopAlong View Post
I don't think much is wrong with the AER on the power front, their 4.0 V8 P1 engine was more than a match for the diesels, the new P1 V6 was better than the others for power and so was the 2.0 4cyl. I'm just shocked how its been the same issues for years. I was watching the 2009 Sebring 12 Hours on YouTube and sure enough both P1 AER teams had retired after an hour and a half, then 2-3 hours in, both Dyson Mazdas went pop.

Is the engine a new design or is it still related to the early 2000s 675/P2 motor?
not sure on the design being honest. But reading the few articles that have come out over the years it looks like the last two years have seen big changes at the company, between new bosses etc.. They had said its been an iteration of the previous or something with a rev increase.

My two cents would be this, AER look like they have motors much more suited to the IMSA power requirements. That P60 V6 looks good for easily getting at least some more torque.

For me this comes down to Mazda. Mazda want the I4, that much is clear. How many years has it been? An zero input from factory? Why would AER want to continue to race an I4 2litre motor that is required to run so much harder than the competition???

I mean look at the BOP for Daytona! they are the lightest car at 905kg, smallest capacity by miles, highest revving by miles, lowest air/fuel ratio, second highest fuel capacity!

Im no expert on the matter, would like if some of the tech heads on here could comment, but the 5.5litre caddy is using a 70litre tank! 2l mazda on 79litres..... What sort of dame power are they having to pull out of that poor motor!??? An the caddy, granted with ex F1 drivers in some cases, looks faster.

No way AER, having a LMP1 WEC engine that supposedly runs very lean would be pushing to run those numbers if they had the choice.

As for the car itself, well I know Multimatic got involved heavily this year, and maybe homologation rules are stopping them, but surely the car cant be as good as the rest.
Turbodcc is offline  
Quote
Old 2 Feb 2019, 13:54 (Ref:3881324)   #20
Turbodcc
Rookie
 
Join Date: Jan 2015
Posts: 54
Turbodcc should be qualifying in the top 10 on the grid
Quote:
Originally Posted by Maelochs View Post
I have posted a lengthy defense of AER elsewhere and don't need to do it again. AER makes fine motors. However ... the IMSA version, or the three (or is it four?) versions which have run ALMS/IMSA (starting with the MZR, I think) have never provided both power and reliability sufficient to make the cars competitive.

While not every Mazda loss or retirement can be laid at the feet of the AER engine ... quite a few can. And it will never have the torque of its rivals, which means it will always lose a head-to-head duel, .... can't handle traffic, or slower corners, as well as the bigger motors.

I agree with canaglia ... the motor needs a clean-sheet redesign and significant displacement boost.
Exactly, its needs a re-design. It probably is possible to make it work with all the technical advances since the beginning of the project many years ago. But that would take many months to do, and probably even more for the small AER company along with their other projects. Like my comment above, I think this just says how little Mazda must be willing to throw at it in a single season.
Turbodcc is offline  
Quote
Old 2 Feb 2019, 14:03 (Ref:3881327)   #21
canaglia
Veteran
 
Join Date: Aug 2016
Posts: 1,920
canaglia should be qualifying in the top 10 on the gridcanaglia should be qualifying in the top 10 on the grid
Quote:
Originally Posted by Turbodcc View Post
not sure on the design being honest. But reading the few articles that have come out over the years it looks like the last two years have seen big changes at the company, between new bosses etc.. They had said its been an iteration of the previous or something with a rev increase.

My two cents would be this, AER look like they have motors much more suited to the IMSA power requirements. That P60 V6 looks good for easily getting at least some more torque.

For me this comes down to Mazda. Mazda want the I4, that much is clear. How many years has it been? An zero input from factory? Why would AER want to continue to race an I4 2litre motor that is required to run so much harder than the competition???

I mean look at the BOP for Daytona! they are the lightest car at 905kg, smallest capacity by miles, highest revving by miles, lowest air/fuel ratio, second highest fuel capacity!

Im no expert on the matter, would like if some of the tech heads on here could comment, but the 5.5litre caddy is using a 70litre tank! 2l mazda on 79litres..... What sort of dame power are they having to pull out of that poor motor!??? An the caddy, granted with ex F1 drivers in some cases, looks faster.

No way AER, having a LMP1 WEC engine that supposedly runs very lean would be pushing to run those numbers if they had the choice.

As for the car itself, well I know Multimatic got involved heavily this year, and maybe homologation rules are stopping them, but surely the car cant be as good as the rest.
well you need to consider that 2L mazda has about 2.4-2.5bar for the whole rpm range, basically it's just like if it was a NA 5L.
Aside that, the answer is simple.... GM 5.5 has a 7600rpm revlimiter but likely drivers upshift below 7000rpm because of the excess of torque; while, as shown by jarvis onboard, mazda drivers need to catch up to 9000rpm to reach the top power.
A smaller engine has worse consumes because has to rev higher to reach a X power that a larger engine reaches at lower rpm's.
It basically work the same way with street cars.

Recall 2017 season, GM 6.2 had better fuel miliage than anyone else with a 64L fuel tank lol (courtesy also of bopped low downforce rear wing and longer gear ratios).

Despite everything, I'm quite sure that mazda 2L pushes not less than 620hp, considering that reached 312km/h (194mph) before bus stop even though a mandatory HD aero setting and a natural high drag design.
canaglia is offline  
Quote
Old 2 Feb 2019, 14:11 (Ref:3881334)   #22
S griffin
Veteran
 
Join Date: Jul 2013
Posts: 18,769
S griffin is going for a new world record!S griffin is going for a new world record!S griffin is going for a new world record!S griffin is going for a new world record!S griffin is going for a new world record!S griffin is going for a new world record!S griffin is going for a new world record!
I think Mazda have a good chance, but it all depends with how the car performs in different circuits. Really we have a good mix this season

The different classes have helped. It does work. I think the series has done well the last few years
S griffin is offline  
__________________
He who dares wins!
He who hesitates is lost!
Quote
Old 2 Feb 2019, 14:18 (Ref:3881337)   #23
Turbodcc
Rookie
 
Join Date: Jan 2015
Posts: 54
Turbodcc should be qualifying in the top 10 on the grid
Quote:
Originally Posted by canaglia View Post
well you need to consider that 2L mazda has about 2.4-2.5bar for the whole rpm range, basically it's just like if it was a NA 5L.
Aside that, the answer is simple.... GM 5.5 has a 7600rpm revlimiter but likely drivers upshift below 7000rpm because of the excess of torque; while, as shown by jarvis onboard, mazda drivers need to catch up to 9000rpm to reach the top power.
A smaller engine has worse consumes because has to rev higher to reach a X power that a larger engine reaches at lower rpm's.
It basically work the same way with street cars.

Recall 2017 season, GM 6.2 had better fuel miliage than anyone else with a 64L fuel tank lol (courtesy also of bopped low downforce rear wing and longer gear ratios).

Despite everything, I'm quite sure that mazda 2L pushes not less than 620hp, considering that reached 312km/h (194mph) before bus stop even though a mandatory HD aero setting and a natural high drag design.
Thanks for that @canaglia! I was hoping you would see it. I have to say, I think the mazda is pushing closer to 650-700hp.
Turbodcc is offline  
Quote
Old 2 Feb 2019, 14:37 (Ref:3881339)   #24
canaglia
Veteran
 
Join Date: Aug 2016
Posts: 1,920
canaglia should be qualifying in the top 10 on the gridcanaglia should be qualifying in the top 10 on the grid
Quote:
Originally Posted by Turbodcc View Post
Thanks for that @canaglia! I was hoping you would see it. I have to say, I think the mazda is pushing closer to 650-700hp.
No way
only state of art Porsche 2L V4 and lexus/honda GT500 2L engines can achieve >650hp with >90kg/h fuel flow rate, but the latters aren't endurance designed engines, while just porsche motor would costs x4 whole mazda dpi.

AER mazda is an old designed engine, season by season pushed over the edge. Guess it pushes about 620hp just because it revs over 9300rpm, recall last seasons revlimit was set at about 8600-8800rpm and likely didn't reach 600hp at all.
canaglia is offline  
Quote
Old 3 Feb 2019, 11:19 (Ref:3881635)   #25
S griffin
Veteran
 
Join Date: Jul 2013
Posts: 18,769
S griffin is going for a new world record!S griffin is going for a new world record!S griffin is going for a new world record!S griffin is going for a new world record!S griffin is going for a new world record!S griffin is going for a new world record!S griffin is going for a new world record!
Well I guess we’ll see the Porsches will have it’s own advantages and disadvantages and thank to IMSA’s rules it will be close.

Mazda will probably be up there again
S griffin is offline  
__________________
He who dares wins!
He who hesitates is lost!
Quote
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Fire extinguishers - what's changed? ffracer Racers Forum 20 19 Mar 2006 20:26
Fire extinguishers for 2006 (again...) MikeBz Racers Forum 5 1 Mar 2006 22:59
club racing fire extinguishers Eric Falce National & Club Racing 45 6 Apr 2005 12:15
AFFF Fire extinguishers Horsebox Rallying & Rallycross 9 29 Jul 2003 22:00
fire extinguishers Tiptop Racing Technology 1 10 Apr 2003 08:12


All times are GMT. The time now is 01:24.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Original Website Copyright © 1998-2003 Craig Antil. All Rights Reserved.
Ten-Tenths Motorsport Forums Copyright © 2004-2021 Royalridge Computing. All Rights Reserved.
Ten-Tenths Motorsport Forums Copyright © 2021-2022 Grant MacDonald. All Rights Reserved.