hey i cant get the car over 122-125 mph,do the maf cars have a speed limiter,or am i just having a problem with my turbo.the car pulls hard all the way there.but then it just hangs around,fells liek the car noses over pretty hard around 120.i know i have the vvs on the back of the cluster is there anyway to unhook it and leave the speeedo working or does the ecm need the vss for the motor to run right

 

if the speed limiter is the problem, you'll need to chip it out. no vss will light the SES light and probably put you into limp mode.

 

yeah i figured as much.though 65% of the time i set the ses light anyway,due to the egr stuff.im gonna try unhooking the speedo cable at the trakc next weekend and see what happens

 

Depamding on what tranny you have dissconnecting the speedo will mess up the shift points and it would work properly.. ( That is this is the 700R4 tranny )

 

The VSS has nothing to do with the shifting of the 700R4 trans. It will affect the TCC lockup. Which in drag racing, unless there is a TCC installed for that duty, is best left unlocked.

Most calibrations will force lock the TCC around 80-90 MPH. This is cal dependent so there is no solid answer here.

The speed limiters are also calibration dependent. Some MY vehicles have them, others do not. I know for fact that the '92 MY AZTY calibration is set for 115/112 MPH (off/on). I also know that w/o this limit the vehicle will pull to a higher MPH.

Note that there is also an engine RPM limiter. Again, AZTY, it is set for 6,212 RPM.

RBob.

 

thnx RBob,i belive last time i looked at my chips info with tunerpro it was 115 mph.now it really has me wondering how much faster the car would have trapped at the track,since i was traping 112.ill deff find out this weekend when i goto the f-body nationals,im gonna unhook the speedo cable from the trans and see if my times drop,well they should regardless since ill be running more boost and using nitrous for the first time

 

holy cow,did a test run today without the speedo hooked up and it pulled right to redline in third,and even got it to drop into 4th and go abit but i deff need that valve to prevent downshifting out of od

 

Hey Dave..I just looked at your comp2 video..it's a killer video..no joke..you should be proud..it just blew me away. What kind of turbo with intercooler do you have on your v-6?

TomScott

 

the turbo is a stage 5 t04e .63 ar on the hot side p-trim and .50 ar cold side with a 57 trim wheel.the intercooler is nothing more then out of a volvo 740

thnx for the compliment son the video