ATLterrell

Hay guys i found my self in two races the other night one was against a RAM truck with the HEMI...I blew past him and he couldnt keep up. Then there was this newly purchased 350z (still had dealer tags). Well for the first 1/2 mile I had him but once I hit 120 Mph he began to slowly pull on me, then we ran into traffic. I'm trying to figure out was that the governor not letting me go past 120 MPH or what???????

CenTexSS

iTrader: (2)

We just run out of steam lol. Our cars don't have governer though.

Mine pulled pretty good to 140mph the only time I took it that high.

ATLterrell

mines a 06 MC SS maybe they are different???

94ss06gxp

iTrader: (5)

my gxp was at 135 and still had plenty left

TheMonteMan

i also have an 06mcss and ive had it to the 140 range. no governor, at least its not set at 120mph. i thought that they were set from the factory at 154 or 158. i agree with centex you just ran out of steam.

1BAD06MCSS

I have mine tuned out with the Superchips Cortex! Reached 140 once racing a new 335i BMW (320hp twin turbo V6). Was a pretty scary race going that fast, but he just would not give up. Had to show him what was up!

TheMonteMan

you know whats funny, i was racing a guy in a brand new 335i when i hit the 140 range too. he wouldnt give up either. that cars pretty sick. he still had the temp plate and everything and it was a pretty close match up. i also agree that it was a little on the scary side, but no one likes to lose. that and the monte felt surprisingly stable at that speed.

Hawkins04

iTrader: (4)

i thought from factory it was set at like 145 mph? i have only reached about 125-130 and it was very stable and still had move but we ran out of room

GXP25

iTrader: (3)

As CenTexSS said, we just run out of "steam." It's really the limited gears on the transmission.

You were probably in 3rd, lol. That's why I don't play games on the highway while stock.

1:1 3rd gear ratio FTL.

nmp0098

Your torque converter clutch got you. It engages at 122mph stock when the shifter is in D. In Tap it will stay unlocked in 3rd. In Tap/4th it basically never unlocks.

07MCSS

iTrader: (3)

I think they are limited to 144 from the factory. Mine saw 158 on the dyno.

monte_with_a_LS4

iTrader: (4)

i have a 06 monte ss and ive gotten to 140 once.

Hawkins04

iTrader: (4)

a friend of mine got his 08 impala ss to 146 mph when the gov. hit

ATLterrell

thanks for the advice guys... now that i think about it maybe i was in 3rd b/c we both were going up a slight hill.........

AlabamaGuy

iTrader: (5)

3rd gear sucks with the stock manifold.

06MonteSS

you can go more than that now...


stockers are set to 140 - 149... dunno why, but different GM calibrations have the speed limiter set differently... I've tuned some that the stock setting was at 140, and others where the stock setting was at 149... heh, go figure...

either way, after I tune 'em, they're not limited to the 140's anymore... hehe...


.

JP_GXP

FWIW, when we tuned my car yesterday, the stock limiter was at 161.

Mine has seen 145.

1 badd gxp

Mine have seen 157mph no tune, right after I bought it would only hit 143 and would not got any further. Sometime after I put the cold air intake on it was when I notice it would it 157 and I could have buried the speedo if I hadn't run out of road.

94ss06gxp

iTrader: (5)

seen 140 in my 94' SS

JP_GXP

If we're mentioning previous cars, my 87 FC saw 140 and my 02 GP GT saw 108, limiter lmao! Scared the crap outta me when it hit, too, was passing a few trucks, then all of a sudden notthing... Never hit a limiter before.