Crazy Engine Swap Idea

"AddictedToM3s - Drives a GC" (addictedtom3s) 02/28/2015 at 19:34 • Filed to: Engine Swaps, BMW i8

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Continuing with my previous post about !!!error: Indecipherable SUB-paragraph formatting!!! , I've just thought up a really crazy idea.

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What if someone were to stick an old BMW or Renault v10 F1 engine into the back of an i8 and move the three-cylinder engine it currently has to where the electric motors are.

Basically, you could toot around town with a small three-cylinder and be economical. Then when you get to the racetrack, you use the already warmed up three-cylinder to warm up the engine oil and coolant to bring the F1 engine up to operating temperature and let the engine expand to its operating tolerances. Then you fire up the engine using the batteries along the spine of the i8 to start it up (like the P1 does with its electric power unit in place of a starter motor). Once you're on the track you could use the three-cylinder as a KERS unit and generate electricity through a decoupled clutch along with a secondary flywheel while the F1 engine takes over for driving duties. The electricity can then be applied like in the LaFerrari or P1.

The drivetrain would be a FWD when you are using the three-cylinder around town (and to get around the beancounters and general public's obsession with FWD) and switch to RWD when the F1 engine is being used. A manual can be had for the three-cylinder since it'd probably be pretty fun to rev that tiny thing out around town and a DCT is hooked up to only the F1 engine.

so TL:DR

Stock three-cylinder in the front with 6-speed manual powering the front wheels for going to the shops

BMW or Renault v10 F1 engine in the back with DCT powering the rear wheels for track duty

Use the three-cylinder for warming up the F1 engine to operating temperatures then it switches to KERS duty

Use the stock battery pack for a starter motor (like the P1 does) and for extra power

TheHondaBro > AddictedToM3s - Drives a GC 02/28/2015 at 19:39

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Forget the V10, go for the LMR V12.

Fred (FreddsterExprs) > AddictedToM3s - Drives a GC 02/28/2015 at 21:15

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BMW i8 GT3 would be awesome.

AddictedToM3s - Drives a GC > Fred (FreddsterExprs) 02/28/2015 at 22:29

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Is that real? I MUST KNOW EVERYTHING YOU KNOW ABOUT THIS!

AddictedToM3s - Drives a GC > TheHondaBro 02/28/2015 at 22:30

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I like where you're going with this.

Fred (FreddsterExprs) > AddictedToM3s - Drives a GC 02/28/2015 at 22:33

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It is not. I am sorry and just as disappointed as you are. BMW prefers to let the fat pig that is the M6 become their next GT3 contender.

It took them only 10 years to copy Alpina!

AddictedToM3s - Drives a GC > Fred (FreddsterExprs) 02/28/2015 at 22:40

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On a side note though, do you know whether it's actually legal to have that DTM-style rear wing that's affixed in that render on a street car? I lust over the idea of having one of those on a stripped out track-rat e92 M3 one day.

Fred (FreddsterExprs) > AddictedToM3s - Drives a GC 02/28/2015 at 22:46

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You mean the swanneck rear spoiler? I'm sure it depends on the local government's regulations. The US is pretty open minded in terms of bodywork so I'd say yes. Seeing how some of the Liberty Walk cars run crazy (and somewhat similar) rear wings I don't see why they wouldn't be allowed.

It'd be a whole 'nother thing trying to pass that type of shenanigans by my local TÜV. They are literally road worthiness regulation Nazis.

AddictedToM3s - Drives a GC > Fred (FreddsterExprs) 02/28/2015 at 22:51

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Hmmm interesting. Now I feel that I must try it out (when I can afford it) to see.

Fred (FreddsterExprs) > AddictedToM3s - Drives a GC 02/28/2015 at 22:53

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