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9 Mar 2011, 16:13 (Ref:2842782) | #1 | ||
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2.0 Turbo I4 LMP2 motor
Hi Folks - I just found this and thought you lot might be interested, it turns out it was Mountune who convinced the ACO to allow a 2.0 I4 turbo into the LMP2 regulations, it really does look like a good value engine for entering the LMP2 scene, but admittedley untried at this point in time........ No, I do not work for Mountune!
follow this link http://www.mountune.com/racing/news/aav . Last edited by knighty; 9 Mar 2011 at 16:20. |
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9 Mar 2011, 16:22 (Ref:2842787) | #2 | ||
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Any relation to the 2l-Ford they are developing for Team Aon's BTCC-cars?
Edit: Just read the pdfs on their site and appearantly the two engines are indeed related |
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9 Mar 2011, 16:32 (Ref:2842791) | #3 | ||
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heres another few links of interest
http://www.mountune.com/racing/news/aat this is the rally-cross car that the LMP2 engine appears to have spawned from, from previous experience these things are extreemly powerful circa 500-700bhp....gulp! http://www.mountune.com/racing/news/aau . |
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9 Mar 2011, 16:38 (Ref:2842795) | #4 | |||
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9 Mar 2011, 16:52 (Ref:2842805) | #5 | ||
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I know that this is irrelevant to a large extent but could this also form the basework for a possible LMP1 engine.
And more on topic, it seems that most 2.0 I4 LMP1/2 engines are/were derived from stock-block engines (AER P07 was Rover K/N derived, AER's Mazda engine was based on the MZR engine, this engine is a Ford based design for examples), while the AMR I6 was designed from scratch for racing. Granted, there aren't many 2.0 inline 6s out there, but I've wondered why almost all I4s have been heavily modified stock block engines? Simple sources and good bases? Or is the inline 4 from a chassis design stand point a good basis (half a V8)? |
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9 Mar 2011, 16:53 (Ref:2842806) | #6 | ||
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interesting, so why did they go the other route???...
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9 Mar 2011, 16:55 (Ref:2842808) | #7 | ||
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9 Mar 2011, 16:59 (Ref:2842811) | #8 | ||
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The Mountune engine is very light and cheap, but it seems underpowered in comparison with its competitors:
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9 Mar 2011, 17:04 (Ref:2842814) | #9 | ||
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Not THAT shy on BHP, well up there on torque, and WAY lighter, in Kilos and Dollars...
I too am surprised SOMEONE hasn't given it a punt, if only in LMS... |
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Tim Yorath Ecurie Llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogoch Fan of "the sacred monster Christophe Bouchut"... |
9 Mar 2011, 17:46 (Ref:2842847) | #10 | |
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I could see such an engine being popular when second-hand P2's come on the market.
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9 Mar 2011, 20:38 (Ref:2842971) | #11 | ||
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Being turbo, it must have a less peaky power curve, that is better low-end power.
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Nitropteron - Fly fast or get crushed! by NaBUrean Prodooktionz naburu38.itch.io |
9 Mar 2011, 20:55 (Ref:2842979) | #12 | |||
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9 Mar 2011, 21:38 (Ref:2843006) | #13 | |||
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The race track and the human body, both born of the earth, drive to be one with the earth, and through the earth one with the car, drive to the undiminished dream, single moments of pleasure, an eternity of memories. |
9 Mar 2011, 23:13 (Ref:2843083) | #14 | |
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The only part that the AER MZR-R engine shares with a production Mazda engine is the badge
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9 Mar 2011, 23:18 (Ref:2843085) | #15 | ||
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Well there we go then scrap the part about the MZR being worked over by AER in my previous post. But about the road engines being the same is true.
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The race track and the human body, both born of the earth, drive to be one with the earth, and through the earth one with the car, drive to the undiminished dream, single moments of pleasure, an eternity of memories. |
10 Mar 2011, 09:11 (Ref:2843232) | #16 | |||
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Regarding the MG LMP675 engine, that has nothing to do with a Rover K-series.......infact AER used a Ford Sierra Cosworth YB engine as a test mule, and they basically copied the combustion chamber layout, hence if you compare both heads, they look identical in this area.......again, this engine was a clean sheet bespoke design lead by Mike Mills sorry to split hairs.......back on subject |
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10 Mar 2011, 12:57 (Ref:2843370) | #17 | ||
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So MG Rover resorted to using a Ford-inspired design for their LMP675/2 engine (and hence the AER P07)? I'll bet you that British Leyland had wished that they had that idea! Although the undersquare K-series Rover makes little sense from that standpoint alone (racing engines, even the LMP1 diesels, tend to be oversquare to maximize revs), let alone the fact that early engines were known for head gasket failure.
But it seems that most of these engines are Ford designs heavily modified for racing--only thing that the road and racing MZR engines probably actually share is the block, and I'll bet, given what's been said here, it's been modified beyond recognition and shares little with the road version. Only thing keeping them from being full-on racing engines is that they can't be fully stress mounted, something that VW's F3 engine had, but Ulrich Baretzky designed it (as well as the BMW F1 inline 4 and all the Audi LMP900 and LMP1 engines), and he's not telling us how he did it. But I still find it interesting that the turbo LMP2/1 4 cylinder engines have a (albeit broadly by the time the engine men are finished!) stock block basis, while the 3.4 V8s are designed as pure, full-on racing engines from the start. |
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10 Mar 2011, 13:59 (Ref:2843401) | #18 | |
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10 Mar 2011, 15:09 (Ref:2843422) | #19 | ||
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You know, actually, for once, I don't think he is!
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Tim Yorath Ecurie Llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogoch Fan of "the sacred monster Christophe Bouchut"... |
10 Mar 2011, 15:57 (Ref:2843444) | #20 | |||
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Does the chassis get a weight break? And why only 4 cylinders? Surely a turbo 2.0litre v8 would be bonkers is it allowed? |
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10 Mar 2011, 16:17 (Ref:2843450) | #21 | ||
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I think with the right engineering it shouldn't be a problem. The Lehmann / VW 2.0 turbo won LMP675 back at Le Mans in 2001, and managed 5th overall. They did quite well in 2000 / 2002 as well IIRC. That motor was only semi-street based, as it was essentially built to the specifications of the still-born Golf A59 rally car which was a perfect 86x86 bore/stroke, but it was originally to be a street homologated engine for Group A purposes...
Back in 1992/1993 the Toyota GTP cars were nearly unbeatable with their 2.1, street-based 4 cylinder turbo motors. They won the Daytona 24 and Sebring 12 outright in 1993. |
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