i have a 94 530i and as soon as i get my 95 525 trans replaced i am doing a similar thing to my 530 as u. i will be stripping the interior, a/c, everything it doesnt need to run. please let me know ur result numbers so when u get this done so i can decide to implement ur methods or not. im a big fan of e34's and like i said i have 2 of them.
however, last summer i cracked a piston ring in the left bank so mpg has dropped to roughly 16/20 city/hwy respectively. this coming summer i plan to swap in a 4 cyl diesel and bio-fuel it. havent decided what engine as it is a pretty fresh idea. im thinking a vw or even a volvo rwd might be best.
seriously though, im interested in your project and as an engineer i may have some tools that could help you in squeezing out that last tenth of a second (or mpg) ur searching for.
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