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Originally Posted by Aether tuning  Its planned to cost me less then 10k to do that entire list... And honestly simply boosting the m42 and putting the m3 diff on makes it faster thenan m3 |
That I would like to see, keeping to that budget seems like it will be mighty hard.
Also what do you mean by m3 diff? you mean a e36 m3 diff? Because that won't even bolt onto to the rear - are you talking about the specific ratio that it has of 3.23? Not really sure what you mean.
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Originally Posted by Aether tuning Yes the s42 has to be rebuilt for every 28hours of run time. I want to built a clone. Which doesn't need to be rebuilt, it will only make 300ish hp compared to the real s42. Its the closest you can get without buying a real s42 the biggest difference is the s42 head is different then an m42. Which is almost impossible to replicate.
Pretty sure that s42s also have a redline above 10k |
I am just putting tired thoughts out of my mind at this time, but as far as i know the s42 made around 300 to start with, not 400, also had a sequential shifter? Also it had 8 injectors vs 4
Also a quote that has some more details that I dug up from a old thread:
"
The S42 engine was a 2.0L touring car engine with a 86.5mm bore and around a 85mm stroke, which shared the same block as the street going M42. Unlike the common M42, the S42 had a more sophisticated engine management system, and had individual throttle bodies. The S42 unfortunately did not share the same valvetrain as the M42, and is a solid lifter valvetrain (possibily from the S50Euro) fully capable of over 9000rpm, but was limited to a 8500rpm redline, as dictated by touring car rules. It was mounted upright in the bay, not slanted, and ran on a full dry sump oiling system. The pistons had a static compression ratio of around 12:1, and running on pump gas, the S42 made around 280hp (and up to around 310hp later in it's life). Good luck finding more information on the internet about the S42, it's next to impossible. "
http://www.bimmerforums.com/forum/sh...&highlight=S42 That also is all talking about crank hp. Here is a completely random idea - if you want 300whp NA and a four cylinder, just use a S2000 trans (for rwd-and its a very good 6spd trans )get a adapter for the k20 and build a K20/K24 hybrid, those can make the power you want and can last for a lot longer then 28hours. 300whp out of those engines has already been done, so if your looking for 300hp or around 280ishwhp, those numbers should be achievable. I think it would be awsome, but of course, a lot will hate, but I don't think you should be worried about that with your build ideas that you already have.