Yes, I'll be doing that stuff (and more), but right now I need to address this needing-a-trans issue, and I might as well do a first gear upgrade while I'm at it, with a much more readily available trans.

Do you have a build thread for your OM603 car that I could learn from? Are there any others? I've actually been looking and all I can find is crazy turbo-sticking-out-of-the-hood kind of builds. I'd eventually like to have this car running low 14s but for now low-15s will do. Twelves are not needed here. Even GSXR doesn't seem to have a build thread anywhere. A lot of good info on his site, yes, but no actual build thread. A general internet search just produces the crazy stuff.

I also want to mention that in another thread I talked about how I proved that the fuel pump relay does indeed affect the shift points at WOT on my CIS-E cars. This proved that it wasn't just the bowden cable, modulator, governor, and valve body controlling the shifts. How would a trans that comes from such a car be controlled here?

Is there anybody here who has actually done such a swap?

I blazed my own trail when I hopped up my 400E. I had to be the one who did everything for the first time cause nobody else had ever done it before. I can't afford to be a trailblazer here. OM603s are too expensive and too hard to find.

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89 300E "Benzer1" 15.924 Uncorrected
93 400E "Benzer3" 14.200 U.C.
95 E420 "Benzer4"
92 300E "Benzer5" 16.299 U.C. Future turbo CNG
87 300D "Benzer7"
87 300D "Benzer8"
87 300D "Benzer9"
87 300D/70 AMC Javelin "Sidewinder-Benzer"
87 300TD "Benzer11"
06 E320 CDI "Benzer12"
05 E320 CDI "Benzer12A"
71 AMC Javelin AMX 401 "Sidewinder"
74 AMC Hornet 401 "C.K.10" 13.63 U.C.
74 Bricklin SV1 "Presto" AMC 360 pwrd.