F3RR3T

i thought are cars topped out at 115-137?

i decided to do my first WOT run down a local stretch of 2 lane out in BFE and topped at 148

xx_ED_xx

iTrader: (17)

6 speed cars it is a little easier

ARCTIC '00

Are you speaking of LT1 F-body? They can do much better than 115! More like closer to 160 for an M6 car.

Formula350

iTrader: (3)

Topped out as in? Electronically governed or ran out of power to go faster? All of my copies of the original tune are showing no governed speed, and the 90-92 TPI stock tune I loaded shows 125mph, so the program is working right. Anyways, my friend has gone over 140 in his 94 Vette which is all stock except no cats. I've gone 130+ in my 91 Formula with a 350 TPI and 144K on the clock. SO That basically takes care of both possible questions lol

za355tx

iTrader: (108)

These cars stock were supposed to be capable to hit around 155mph.

My95Z

iTrader: (8)

Rated at 155 from the factory as long as they had the Z rated tire option that removed the 115mph speed limiter. That doesn't mean they won't do more than 155 though

Z-RATED94

iTrader: (6)

This is what I read in three different Mags back around 94. All tests (give or take) where within one mph of the 155.

daves94formula

iTrader: (3)

my firebird pulled around 180 with the mods listed in the sig on the old 350. probly a bad idea spinning a stock bottom end to 6700 because the connecting rod bearings failed like 2 days later. for the haters out there that say this isnt possible you do the math. http://golenengineservice.com/calc/calcmph.htm
6700rpm (indicated on factory tach), 25.7" tire, 2.73 rear, 1:1 trans (i was in 3rd)

hitmanws6

iTrader: (20)

ive done 155 before in my bird. this was before all the mods

94Z28-MSTGKLR

iTrader: (20)

I've done just a hair over 160 racing a friend in his 06 GTO. The only thing I had at that time was my SLP LM1, and about 3 miles of straight road, lol.

gregrob

iTrader: (8)

Factory tachs are usually wrong.

daves94formula

iTrader: (3)

which is why i said indicated on FACTORY TACH

Formula350

iTrader: (3)

Unless you're talking about the signal being off, and not the tach motor, mine is dead on with what my computer is reading

ALEXZ28

trust me it will do over 140 lol i did 150 with 410 gears in 6th gear

djjab57

iTrader: (17)

man this has been gone over before, 94 Z A4 bone stock, 2:73"s 164 mph. i have a GPS if you are wondering how i know

lt1noob

iTrader: (4)

got about 146 w/ stock governer out of mine, might be a little fasterthan that but i dont think my speedo is EXACT. was definately 140+...

brickonwheels

iTrader: (6)

I've taken it past where the speedo would read and decided that I probably didn't need to go much faster. But I would like to see what it would do. My suspension setup makes the car feel really unstable at speed, though.

djjab57

iTrader: (17)

since the 164 ive added mods in sig., so this weekend i think ill go for another shot at it...if it dont rain

RamAir95TA

iTrader: (2)

No, your car is not a freak.

No, we are not impressed.

z_speedfreak

iTrader: (3)

x2 I brought mine to 5700 in 5th which according to the math is 173 so I usually say its good for 160+ when people ask.