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12 Mar 2004, 23:52 (Ref:903920) | #1 | ||
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chilling race fuel?
does any know if the effects of chilling 102octane fuel to
-35degrees celcius could improve performance:confused: |
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13 Mar 2004, 00:01 (Ref:903937) | #2 | |||
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Re: chilling race fuel?
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13 Mar 2004, 00:25 (Ref:903955) | #3 | ||
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thanx,i race in a standard production saloon car series where basically no mods are allowed,the car iuse believe it or not is a golf 1 160i (polo motor mp9)competion is extremely tight,and looking to try anything to squeeze any more power,any other suggestions?
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13 Mar 2004, 00:30 (Ref:903958) | #4 | |||
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How about?
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Any ability to play with the timing? Last edited by thebear; 13 Mar 2004 at 00:30. |
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13 Mar 2004, 01:04 (Ref:903982) | #5 | ||
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yes,i have one ,as for timing,played there already.please excuse me as this is my first time on a chat forum and can barely type, so it takes awhile.as for my mechanical knowledge "limited".however,back to my original question of cooling fuel to enhance perfoormance.do you think i would be wasting time pursuing the possible benefit?
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13 Mar 2004, 01:12 (Ref:903987) | #6 | |||
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Cool Fuel?
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You haven't stated what method you would use. Presumably you would pack the fuel containers in dry ice? Otherwise it would be a lot of money for the same gain that could be achieved with only a slight increase in talent. |
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13 Mar 2004, 01:38 (Ref:904001) | #7 | ||
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the container is placed in a chiller almost submersed in glycol, according to manufacuturer would take approx 40mins
to cool 20litres to -35degrees c,as for talent always room for improvment, any measurable benefits from magnetising fuel? |
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13 Mar 2004, 01:41 (Ref:904004) | #8 | |||
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Magnets?
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13 Mar 2004, 06:18 (Ref:904106) | #9 | |||
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Re: Magnets? What about Crystals???
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13 Mar 2004, 08:09 (Ref:904160) | #10 | ||
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We cool our fuel for racing not to -35deg but in a freezer also run a fuel cooler on the car (just a small oil cooler). It does make a differance!!!
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13 Mar 2004, 08:13 (Ref:904163) | #11 | ||
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Mazda Motorsport used cooled fuel in the early Bathurst 12 hour races, and found that they got an improvemtn in power and fuel economy from doing this. Mind you, this is in a turbocharged rotary, and the fuel would have had an intercooling function to assist in the power production. It also kept the engines tempretures more consistent over long (50~60 minutes) runs
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15 Mar 2004, 14:23 (Ref:905938) | #12 | ||
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You would probably find more power increase by packing dry ice around your intake manifold to lower the temperature of your air charge. Colder air is more dense, packs more oxygen and more oxygen makes more power. Just watch your fuel mixture to avoid a too lean condition that might burn a piston. This is an old drag racing trick.
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15 Mar 2004, 17:23 (Ref:906107) | #13 | ||
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As KC says, you get pretty decent results from cooling the air intake charge. But you should get real results from cooling your fuel, as well...
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15 Mar 2004, 19:03 (Ref:906216) | #14 | ||
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thanks to all,much appreciated.ill give feedback in+-3weeks after some dynos and next race.
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15 Mar 2004, 20:06 (Ref:906271) | #15 | |||
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Re: Re: Magnets? What about Crystals???
Quote:
my boss has tried these magnets when someone claimed they were the bets thing since sliced bread, with the salesperson stood next to him it made absolutely no difference what so ever, hmmmm i use the magnets to hold the dart board to the metal door now... |
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12 Aug 2005, 17:21 (Ref:1380821) | #16 | ||
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where is the point when the air/fuel is so cold that fuel vaporization is upset and causes uneven/slow burn and low hp ?
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14 Aug 2005, 11:51 (Ref:1381847) | #17 | |
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There is always a limit. But it makes sense to be able to run more aggressive engine tune with cooled fuel as pre-ignition limit should be improved. Some production cars have run fuel coolers and drag races use them. Can't wait to hear the results.
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14 Aug 2005, 20:01 (Ref:1382143) | #18 | ||
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we used to chill it a bit in a bda, hillclimbing, seemed to always win, but not sure if thats cos of the feul!
didnt hurt anyway, and the thoery says u should get more bang. aint a big problem when u used 3litres on a run! u can put it in the frigde. |
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15 Aug 2005, 09:50 (Ref:1382491) | #19 | ||
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As MountainRunner hinted at, you can run more timing and that would help. More fuel also helps in taking the heat out of the piston and generally means you can run more ignition. If you chilled the fuel, as soon as it gets to that nice hot piston it'll quickly re-heat, but the energy taken to re-heat it comes out of the piston (but you put it back in next bang). I could see a gain, whether it would be worth the hassle....next question.
I know Team Subaru Australia were packing dry ice round the Intercooler for last years Rally Oz, reckoned it went pretty damn hard for the first 10kay before the ice run out, but sometimes that's all the edge you need. Good luck. |
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15 Aug 2005, 13:43 (Ref:1382766) | #20 | ||
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In no scientist. But i wonder if this will help you
Quote:
http://www.foxvalleykart.com/fuel1.html |
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15 Aug 2005, 15:03 (Ref:1382819) | #21 | ||
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15 Aug 2005, 15:07 (Ref:1382822) | #22 | |
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Some championship regs may not allow chilled fuel. It might say that it has to be stored at atmospheric pressure and temperature.
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16 Aug 2005, 20:44 (Ref:1384025) | #23 | ||
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Sorry, repeated an earlier post
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17 Aug 2005, 08:24 (Ref:1384373) | #24 | |
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the only chilling thing about race fuel ( for me) is the cost !
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