ssfromsd Posted April 24, 2006 Report Share Posted April 24, 2006 How can you raise your top speed? by a tune only? ive only got like 105-106 and it is still way to safe in the rpms. What would like 5k rpm in 4th get? Link to comment Share on other sites More sharing options...
misterp Posted April 24, 2006 Report Share Posted April 24, 2006 MPH governor settings are in your PCM tune, yes it has to be reprogrammed. Assuming 32.5" tall tires (stock) @ 5K-RPM in 4th gear + 100% lockup = 170 mph. Man all these math questions today... Mr. P. Link to comment Share on other sites More sharing options...
montanass Posted April 24, 2006 Report Share Posted April 24, 2006 damn Mr. P thats alot of speed... when does it lift off? Link to comment Share on other sites More sharing options...
04CHASE Posted April 24, 2006 Report Share Posted April 24, 2006 i honestly dont thin you can get to that speed, i think the hood would fly off around 160. i have been 137 in mine and the hood started scarinf me Link to comment Share on other sites More sharing options...
zippy Posted April 24, 2006 Report Share Posted April 24, 2006 I've been to 136 in an SSS and about 135 in a VHO and both were not yet done pulling. Link to comment Share on other sites More sharing options...
BmanSS Posted April 24, 2006 Report Share Posted April 24, 2006 all i could get was 118 mph ....................in 3rd Link to comment Share on other sites More sharing options...
tawss04 Posted April 24, 2006 Report Share Posted April 24, 2006 MPH governor settings are in your PCM tune, yes it has to be reprogrammed. Assuming 32.5" tall tires (stock) @ 5K-RPM in 4th gear + 100% lockup = 170 mph. Man all these math questions today... Mr. P. <{POST_SNAPBACK}> Just trying to keep you on your toes Link to comment Share on other sites More sharing options...
Kyle's03SilveradoSS Posted April 24, 2006 Report Share Posted April 24, 2006 After the new PCM and what not it pegs the speedo at 120mph in 3rd and after a few seconds of that it shifts to 4th. I don't have any way to check the speed after 120mph so I dunno. Link to comment Share on other sites More sharing options...
HOLSTEIN Posted April 25, 2006 Report Share Posted April 25, 2006 I've been to 136 in an SSS and about 135 in a VHO and both were not yet done pulling. <{POST_SNAPBACK}> 135ish in the ss w/ a gsxr 1000 trailing mark for speed Link to comment Share on other sites More sharing options...
Generalms02 Posted April 25, 2006 Report Share Posted April 25, 2006 I've been to 136 in an SSS and about 135 in a VHO and both were not yet done pulling. <{POST_SNAPBACK}> 135ish in the ss w/ a gsxr 1000 trailing mark for speed <{POST_SNAPBACK}> I'm not sure about this, but I heard that motorcycle speedometers are really unreliable above like 100mph.... Can anyone confirm that? Link to comment Share on other sites More sharing options...
04CHASE Posted April 25, 2006 Report Share Posted April 25, 2006 this is where the interceptor gauge comes in handy. Link to comment Share on other sites More sharing options...
.justin. Posted April 29, 2006 Report Share Posted April 29, 2006 Had mine up to 129mph in 4th gear before I gave it just a tad too much gas and it dropped down to 3rd. I'm going to program that out of it and see what she'll do on sunday on my way back to San Jose. Link to comment Share on other sites More sharing options...
TimC3 Posted April 29, 2006 Report Share Posted April 29, 2006 Since my latest tune, I've had the C3 to 130 a couple of times.. I know there's more there, but she doesn't like it. Something about a 5000 LB brick smashing through the air I guess.. Yes, the tune itself will take care of the 108 MPH stock speed limiter. Link to comment Share on other sites More sharing options...
ssfromsd Posted April 30, 2006 Author Report Share Posted April 30, 2006 had the stock 98' C5 Convertable vette to 160 myself with the topdown... Link to comment Share on other sites More sharing options...
zippy Posted April 30, 2006 Report Share Posted April 30, 2006 Just out of amusement, I figured I'd post this from a log from last night. There was more left, but that seemed like enough at that point. That was 3rd gear yet. Link to comment Share on other sites More sharing options...
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