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Cleaner13

The Cleaner
Joined
Apr 8, 2002
Messages
478
this was probably asked a million times
but whats the stock redline on a GN/TR ?

people that I have talked to tell me they have it shift at around 5100-5300

mine redlines at 5800 where there is a rev limiter set in

is this way to high and should I cut it down to the 5100 or what?
would there be any advatange to bringing it down, I Know I obviously wont rev as high but wouldnt I be in my power curve longer or something?
thanks


Carl
 
Eric schertz adjusted it for me
but I guess maybe thats why I am getting knock at the end of my shifts?

does everyone else shift at 4800rpms?

Carl
 
Yep.
Cut down the rpms. Your power curve is below 5000rpm. I would say that it should shift between 4800 to 5200 rpm, depending on your valvesprings.
Adjust your tv cable a bit and see if it makes a difference. Our cars don't make much for power after 4800rpm, so there is no benefit to revving the crap out of it.
What chip are you using?
I don't know if my car has a redline..........when I got my tranny back, I took it for a squirt, and it wouldn't shift out of first for some reason. The car saw 6200rpm for a brief second, so my redline must be invisible......:)
 
With my TV cable set so the car shifts good and firm my GN usually shifts right at 5200 from 1st to 2nd and about 5000 from 2-3. No reason to wind it any tighter w/ the stock cam and heads.
HTH
 
thank you guys very much

I have a custom chip in right now but I can get it so it cuts out at around 5K or so

yes I have stock heads and cam

do you think all this high revving would cause the boost creep/knock at the top of shifts?

Carl
 
Cutting the ignition via the chip is not the answer to your problem. The problem is in the transmission or TV cable.

Yes the rev limiter can induce KR
 
Over-revving your motor may not cause boost creep or knock, but it may render it a basket case.

The stock cam has long since signed off by 5,800 RPM, so you're doing yourself (and the car) no favors. If anything, you're slowing it down.

The idea is to keep the motor near its torque peak as the tranny shifts (hopefully itself) through the gears. The torque peak of our motors occurs at relatively low RPM. Turbo motors like heavy loads, not gears. TRs produce prodigious amounts of torque - we don't need no stinking torque multiplication...

:D
 
do you think theres a chance of seeing a larger improvement with this change of rpm shifts?

I know the car is fast, but it feels like its power turns to plateu and kind just goes flat

Carl
 
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