147 Mph????

[GrrrCnD085]

turbo's have spool time...thats the only problem i have with them..id much rather put the supercharged 3800 in and do some small upgrades like a little bigger pulley and exhast n such im sure you could get some serious hp....that cavalier did the sc 3800 and they were saying going like 30mph or somthing they could punch the gas and light up the tires..lol i almost want to sell the ga and do that thats sweet

[leadfootGTP]

*smaller pulley

[nighttraincp]

with the aftermarket turbos, you can adjust the boost. the only problem with the turbo is if you want to do it right you have to put in low compression pistions. about 2g for them alone. plus 2g for the turbo. and there is a bunch of crap that has to b changed. both have there good uses, its all up 2 individual oppinion. both would fast as hell.

[GrrrCnD085]

with a turbo you need forged pistons you need upgraded fuel pump and bigger injectors...thats minimum upgrades..you should probably do titanium valve springs and other stuff and you can adjust the boost on a stock turbo...all you need to adjust the boost on any turbo is a Boost Controler

[3.4grandam]

u mentioned that he doesnt have any mods besides the govner removed and u dont believe he got up to 147. u dont really need mods to get a high speed like that. wut counts is how fast he got to that speed. more mods would get him to that speed faster but i still think it could reached stock

[Forkliftguy]

I'm not reading all these posts, someone has probably already said it but here's my .02 cents: You will not get a stock Grand Am up to 150 MPH. It just won't happen. It's the laws of physics. That motor just won't do it stock, the suspension won't do it stock nothing stock we'll get it there. And besides a grand am gt is an SE with disc brakes. Anyone who has been to the 150 Mph mark and faster can back me up here (and believe me it would not have been in a Stock GA) : Even if you could get it there you'd be smart enough not to. Hmm let's see, Corvette, falls into, albeit questionable, supercar category has hard time reaching it's top speed of around 165, but a stock grand am can get to 150, righhhhhht... Being road kill isn't far off the mark, this is not dream land, the laws of physics apply here in the real world.


Marc

[brots06]

i have a '99 grand am gt and when i bought it used the governor was already taken off, i recently got it up to 140mph and my car is all stock, and no i wasnt going down a hill it was on a straight away on the highway.

[BFT]

Originally Posted by brots06

i have a '99 grand am gt and when i bought it used the governor was already taken off, i recently got it up to 140mph and my car is all stock, and no i wasnt going down a hill it was on a straight away on the highway.

These cars don't have governors. Unless its got a custom Power control Moduel, you won't be running that fast. You shure it wasn't watching KLM's per hour?

[brots06]

i am 100% sure it was 140mph, i dont know the car could have something else controlling the computer that i dont know about i did buy the car used...

[Markgase2000]

A burried needle would suggest speeds in excess of 130 mph or in excess of 220 kmph after that the only way to know how fast you got it is to get clocked by a cop and get your liscence taken away how fun is that? Also how fun is crappin your pants to keep the car on the road never mind in the lane cus these cars get snakey on the road after 120 mph and a simple little side wind makes it shake and shimmy every little bump feels like your gonna break apart the front end and when it tries to maintain controll it feels spongy. To all those who do not believe they can get up to speed you are very wrong cus theres dumbasses out there doing it and Im sure with these controll issues most wont ever try again.

[brots06]

my speedometer goes up to 150... ha

[road_rascal]

Has anyone calculated the speedometer error on these cars? Even though the speedo on my dad's Saab 9000 turbo read 145mph the gps I had with me only clocked 139mph.

[volvospeed850turbo]

Originally Posted by Ridenour

My friend says that his friend maxed out his 2003 Grand Am GT at 147 MPH! He says he had the govenor removed but no other modifications to the engine. I find this hard to believe. Can anyone else testify that it's possible to go that fast in an all-stock 2003 GT? I dunno, but I don't believe a stock would max out that high. Don't think it'd do it. Tell me if it's possible.

I have a 97 Volvo 850 T5-R Wagon and I have raced a 2004 grand am GT with Ram Air and I smashed him. I turned the car to sport but I didn't even raise the boost. When I hit 105-110, the grand am looked as if he were going in reverse. In my opinion, I don't think a grand am could ever get to 147, even if the governor was limited, unless the wind was very strong and it was pushing him along. I have a Wagon that will do that, but it is made to, "It's European"

[pimprolla112]

its might be possibe but very doubtful the motor size doesnt matter believe me i had a 91 4 door corolla 1.6l twin cam 3 speed auto tranny and about 150,000 miles on it with about 500 lbs of stereo shit bone stock with a nasty exhaust leak and it ran up to 110 before it maxed out after 80 it took a little while to get up but it did it. thats a family sedan made for doing 60-70 on the freeway. it might be possible another example my friends 87 prelude did 125 it wasnt maxed out he let off cause he got scared all he had was a home made intake his car had about 180,000 miles. if a ragged out beater can do 110 than a 2003 grand am gt might be able to do it.

[Markgase2000]

Originally Posted by brots06

my speedometer goes up to 150... ha

I want that speedometer then cus mine only goes to 130 or 220kmph and I think it would look sweet with a 150mph speedo. Where did you buy it and what did you have to do to calibrate it?