Old May 8, 2022 | 12:01 PM
  #49 (permalink)  
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latemodel21
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Joined: Apr 2011
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From: Gilroy, California
Default Re: SRT6 Nitrous revisited looking for experienced opinions

Originally Posted by velociabstract
I raised the ECU rev limiter to 6500. (Eurocharged) Bought a TCU that worked off the S/W switch. S was stock and W was full manual. The idea was rev the engine higher and shift later to take advantage of the higher redline. It didn't upshift until commanded. However, the upshifts were sooo sloooow in W that it negated any possible benefit from the control. I had to hit the shifter way early to avoid the limiter. The lag was such that I ended up shifting much to early to avoid the limiter. It never worked well enough to be of benefit on the road course or 1/4 mile. I still have that TCU in the closet (Evotech), epoxied shut). When I swapped out my ring and pinion for a 3:27, I purchased a tuned TCU from Rudy. (many years ago)) I never could tell any difference from a stock TCU.
If I bring my car out of retirement I'd most likely want to run 1/2 mile events or do some drag racing. Nitrous, perhaps. I'd want higher shift points and lightning upshifts. This car is my toy, not a daily driver. I dynoed my car with the Evotech TCU and ran it out close to 6300 rpm years ago and the power is still climbing at a 45º angle. Lots of power up there...lots.
Obviously I'm toying with the idea of returning to the racing scene and Eurocharged is no longer a tuning option and my TCU has me yawning. Therefore my interest in your tuning and project. I'm subscribed.

Les
You would do well to talk to Andrew (CL770). I have done quite a few datalogs with his TCUs (primarily at full throttle) and I find my car shifts quickly and consistently at the RPM that I expected (with a logged variation of less than ±50 Rpm in 2-3 , 3-4 and in 1st-2nd shifts, about +0, - 100 ). He can also take care of any final drive ratio changes in your tune. You can reach him at andrew.tieken@gmail.com

Cheers,
Chris
 

Last edited by latemodel21; May 8, 2022 at 12:04 PM.
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