147 Mph????

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 got an 04 se and my governer kicks in at 107, third gear at 4500 rpms. i think it might be possible

yeah im thinking it could be possible too since he removed the governor and it is a GT...who knows, maybe he was going downhill or possibly even in a freefall. heh heh

He needs to be careful as the governor is there to prevent speeding beyond the governor setting because stock tires are not rated for high speed.
If they want to go beyond that speed and disable the governor, they must use a high speed rated tire.

good point..i wasnt even thinking of that

Hahaha... yeh he probably was on a 45 degree slope or somethin. Jeez, I didn't even think about non-highspeed rated tires. That kid better watch it or he's gonna lose a tire goin that fast... he'd roll so much there wouldn't be anything left for the medics by the time he stopped. Speaking of speed rated tires.... - what would be some good, inexpensive high-speed tires?

I don't think he hit anywhere near 147, I'd imagine a big old boat like a 5th gen. GA would be drag limited at around 120-125ish.

Cars today have speed limiters built into the computer. When you reach your maximum speed, no more fuel will be injected into the engine no matter what you do. I doubt its set at 145mph.....Its a federal law.

while i think that it is theoritically possible, how could he tell? his speedo doesnt go that high (i dont think) but i know ive had my car over 120 (95 bonneville ssei) so i wouldnt necessarily doubt that it could, but id want some proof.

proof?..the only proof i would want is to stand by with a radar gun cuz there isnt any way id get into a car with a "nonprofessional" driver trying to go anywhere near 145...unless of course that nonprofessional driver is me

140+ in an N/A Grand AM? The biggest engine they pack is a 3.4, and its no way he could even do that if he had the 3.8 unless he's supercharged.

The engine doesn't really matter, its the gearing, governer and what speed the car is drag limited to that matters.

Im not sure the top speed of the ga's , but i guess its around 155 without a speed limiter. Got a 247kmph (154mph)ticket that caused me grief in the longrun with my 2000 se v6. It was near yellow in fourth. (automatic) give a good idea?

ive gotten my '93 SE at 120+ .. so i would think its possible

I also have no gov. on my 1999 gagt and i have hit 140 at about 5500RPM. I have the sport performance package on my car also so the spedometer shows up to 150mph.

ya, for some reason i think your b uddy is shitting you right now, i mean it is soppable for a ga to go that fast, but you cant just remove the speel liniter, as i found out here, in the forums, its a computher program, not a divice in the trans like older cars, so for him to "remove" his governor he would have to replace the computer... which i am going to be doing soon :D

its not that hard to do...just buy a new pcm its about 200 dollors

its possible, b/c i doubt he would reprogram his pcm and only remove the speed limiter, it would make more sense to reprogram the whole thig and get a little more hp out v his car, which might allow him to hit that speed if he also retuned his gears and etc... but it sounds like hes bsing you.

Here is a fun test to give him: ask him how he removed the speed limiter, and if he says " i unscrewed it" or something of that nature, then hes lying. :naughty:

lol...yea
theres no way in hell he went that fast stock and lived.

the stock tires are only rated for like 110 mph, my tires arent stock but they are rated the same an i have a hard time keeping under contol 100+

or that could have been my terrible driving :p

I removed the govenor and rev limiter in my stock 99 gd am se. I got a ticket at 150mph. My speedo stops at 120 and my RPM meter stops at 8000. At 120 my rpms are at like 4800. When i got my ticket i had the rpms up to 8000. I was thainking my cars going to blow up but it didn't.

i cant imagine you have ur license anymore. If you do you should cut it up and invest in a bicycle...moron

moron......that is if its true...(not likely)

I did some lying my car was not stock i had hi perfomance tires and i had the Digital Horsepower PCM from www.pfyc.com.(http://www.pfyc.com/store/merchant.mv?Screen=PROD&Store_Code=PFYC&Product_Code=GA3010&Product_Count=18&Category_Code=GAUNDER) and i do not have my license right now i have to go to some classes.(5) and pay the ticket and pay to have my car back.

well....there ya go....racetracks are there for a reason

I also have no gov. on my 1999 gagt and i have hit 140 at about 5500RPM. I have the sport performance package on my car also so the spedometer shows up to 150mph.
Never seen a sports performance package , that would be great to see a 150 mph guage in a grand am. But why is it cars like neons have a 260kmph(160mph) when they go like crap? Im stickin to the good old cruise controll cus zero tolerance is in full effect here. In town you can get charged $100 for every kmph over the limit and not so bad as town but worse than before on the highway it got hefty too. But one other thing i noticed about the zero tolerance is less cops are out on the highway and they're more in town. I dont think my car would hit much more than 110mph on a racetrack with looong straights cus once it gets hot it gets useless for power. If my intake air is 40-50celcius a stock grand am will walk all over me cus my car goes lean with the intake air. When I got clocked with the ridiculous speed ticket the car was opened up for quite awhile took along time to get it up there like a minute oooooh thats some great top end acceleration there i tell ya. Plus the car feels like a damn canoe in the rapids goin fast like that not too mention it sounds like the car is broken past 220kmph suspension creaks and squeeks hit a small dip or bump its like a ramp the whole body lifts up high as the wheels almost or do leave the ground , the more I think about it the dumber I feel about doin it. I am gonna enroll in claimer car racing and put a crappy 300 dollar car on its roof several times on a oval track , BUMP TO PASS!!! Ill get a good beginers learning expirience that way before playin with something expensive. I dunno what you guys think claimers is but around here it front wheel drive 4cylinder automatics unmodified (that dont mean you cant run straight off the manifolds) its fun aparently.
Im not bagging my grand am no more.

my Grand Am GT has a 150 MPH guage stock

2001 GAGT1 Stock Speedometer goes to 150, RPMs to 7k, Tires rated to 150MPH (Goodyear Eagle RS-A) and I hit my Limiter @ 130-135 and it felt like the car had another 10-15 MPH in it. Only things that aint stock are the air filter (got the K&N) and motor oil (Redline 5W-30).

well i cant find a track that has long enough straitaways in san antonio to get to 150 mph so i cant test it

I wanna see these speedos , i might get one.

its possible, b/c i doubt he would reprogram his pcm and only remove the speed limiter, it would make more sense to reprogram the whole thig and get a little more hp out v his car, which might allow him to hit that speed if he also retuned his gears and etc... but it sounds like hes bsing you.

Here is a fun test to give him: ask him how he removed the speed limiter, and if he says " i unscrewed it" or something of that nature, then hes lying. :naughty:
What the chip actually does is increases the top speed limiter with the rpms limiter , well the rpms limiter is set at different points in each gear a chip or power programmer would increase these signals not remove them. My car hits 6200+rpms its sounds like its gonna shake the bolts out so imagine what more would do. You cannot remove it just change it.

Look into airport runways , some of them hold drag race or top out events every so often cant hurt to look.

Ok I know this is a totally different car. But my 97' jetta did 156 with the governor removed. So maybe yea if its a 6cyl.

In the NY area you can go to Floyd Bennet Feild; exit 11 south off the Belt Parkway; It's an decomissioned airfelid; it's tricky though, the speed limit is 25 there; and there is a police traning facility there; and helicopter police traning facility; and a police shooting range and driving courswe, but they're all on the other side of the feild. But everyone speeds on the main runway; I've seen corvettes top out there; its a good sized runway and very wide; pavement is rough but relatively crack free; just make sure the cops aint around before you make your rounds.

EDIT: god I wish they'd let civilians into the cop obstacle course.

i take it thats in NYC. Man i dont wanna drive 3-4 hrs just to do that. Any body know of a place north of Albany NY?

Um.. I'm sure there are some paved roads that are pretty much empty around there; Adarondacks have great windy roads but too bad you cant take those @ night when there's no other cars out cuz of the deer and bears

If your guys get the chance; they recently paved the 6 in north PA (from albany take the 88 down to the 220 into PA just after Binghampton to the 6), I was on it a few years back and it was a freaking 1 lane dirt road; my freind went down there recently and said it was recently paved and expanded and its a very good road now.

other roads I know: the 80 once you get a good distance into PA (cops are always @ the begining of the state comming from jersey)

the 180 right from the begining off the 80; empty as hell and great visibility and stretches

the 78 toward it's end in PA, no room for cops (concrete divider, insufficient shoulder) but usually much other cars on the road

the 287 in Jersey from the 80/46 and north, fairly empty good pavement, wide

Garden State PKWY; especially in the south

New England Thrughway just past the bronx has 1 nice strech where the gas station and the giant fake tree is.

Sunset Highway (27) after the stop lights end and before you goet out into the haptons is good and once again toward the very end (Montauk)

We should make a thread of good roads to speed on and roads to avaoid

pvt murphy are you an idiot?...you just gave him a list of public highways and interstates that normal people such as myself drive on every day...I live in PA and use 80 very often, i dont want somebody trying to race down it, theres enough accidents there as it is. I think hes looking for actual drag strips or "abandoned airport" type places. Not busy highways.

On the speed part of this post I feel like calling BS because out of all the people saying that they've run up past 120mph, no one has expressed fear or said anything about tunnel vision. Not one person! I keep reading this crap about a governor when the GM motors are restricted due to the power control moduel. You can have a mod chip installed inside one, but you guys make it out like there is something that can be taken off the throttle body. Maybe if we're talking a pre 1992 car you would be right, but I just don't see it. Next you are talking about a car thats biggest V-6 is the 3.4.....maybe 135mph tops, but not 147-150 range. If its the 3.8 supercharged V-6 then ok, but even then you are talking about a modified car with a long stretch in front of it. As to the airbase/dragstrip thing... that is the best place to run your car flat out. Yes I have done the street race/highway thing before and it just isn't worth it. Too many things can go wrong. At the track you have some help if you get into trouble. At an air base you tear up your own car and don't risk other people.

i agree w/ you 100% about racing on the street, aand tht the top speed is bs, but i dont agree that the speed is impossibe, it is not hard or very far fetched that the measures taken to limit the cars speed could be surpassed, and 3.4 l v6 is pleanty to bring the car passed 140, its all about the gearing, not the size.

Got me on the gearing, don't know enougth about it myself.

Do most people brag about getting scared? Freaky thing i didnt expect from high speed were tunnel vision (the road narrows it seems) severe floating and seeming lack of contact to the road and my hands always damn near seaze on the steering wheel terrified to make any sudden movements cus any slight movement jerks the car about at high speeds. It reminds me of slushy icy roads with summer tires on. I noticed that the rear end lifts up alot at speeds of 100 mphish and the turn radius is diminished at those speeds (like driving a frieght train that can steer) unless im giving it more gas as i turn the damn car dips the front end too much and turns like a plow. Since I have my front stabilizers installed the front end dont dip so much and allows me to steer a bit nicer on the highway in general driving conditions or even a lil faster. I have been taking care not too be speeding due to zero tolerance by the cops here and got kinda a wake up call to drive safer, a guy I know got a 200 dollar ticket for going 35mph in a 30mph zone. Im not messing with that!
I will not make my car go over 80mph no more , theres no point.
Gearing from my own expirience ,
1st-2nd = 45mph
2nd-3rd = 87.5mph
3rd-4th = 125mph
4th top out was 154mph at 5600rpms then even with pedal to the metal it would decellerate like a lack of power from slight hills lose a quick 20-30 mph even tho the pedal is pressed all the way and the car likes to sway back that doesnt help maintain the speed either. Not enough power , not good enough suspension for high speeds and aparantly it looks like the side mirrors are gonna shake right off. sorry for the long text

You are right... no one brags about being scared. But I notice most peeps will give respect at some point to drive safety and a healthy fear of the unknown. This post was getting to the point that it was seeming like the drivers had nerves of steel. GPs and Grand Ams are not designed to travel on the highway for sustained times as has been outlined at trippile digit speeds. I can see maybe 147mph down hill, but not up it. And yes the tunnel vision is wild. At those speeds you don't get a ticket ...... you get jail and your car impounded. And hopefully you won't have a blow out and flip the car. Hope your tires are rated for those kind of speeds. Some of you may have actually run your cars at high rates of speed. Others of you are full of BS. I do my running at the track these days in a controled invironment. No more going nuts on the highways for me! And I also agree that zero tolerance plays a role in everything too.

ok, now, what is the higher speed limit in the country? 75mph? 80mph? AFAIK 75mph at the turnpike. Now, limit the speed (governor) at 145pmh, that's nice. It means, the government say no regular car should be allowed to run above 145mph, ok, show me a road where you can drive at 140mph. That's at least funny.

I am sorry if i came off like i had "nerves of steel" i am scared so scared but one may ask "Than why do it?" I say cuse the way I feal at high speeds the adrenalin the fealing. it makes me feal good and i can not find something to make me feal that way so i will do it and i will do it all the time BUT I will find a NONPUBLIC something to do it and to do it safe.

i believe him the i tried racing one on the intersate and i couldn'y catch him. I was going about 125 so i would say it was up there

ok, now, what is the higher speed limit in the country? 75mph? 80mph? AFAIK 75mph at the turnpike. Now, limit the speed (governor) at 145pmh, that's nice. It means, the government say no regular car should be allowed to run above 145mph, ok, show me a road where you can drive at 140mph. That's at least funny.
The government dose not say the governor in your car will be at 145mph or something like that, Pontiac is the one that said the Grand Am is not safe over 145mph. The governmet said over 65mph is not safe. (145 was what he said, I know my governor was at 105mph. :naughty: )

now i c y i dont live on the east coast any more. i got nailed in indiana doing 87 in a 45 construction zone and still paid only $190. and it stayed off my record. i drag on the hwy, but thats when i get off work at 4am. but everything is location. and it doesnt matter if ur speeding or following all the laws. every accident i've been in ive been when im doing the speed limit or less and obeying the law. u only controll a portion of what happens. everything else is in the hands of the moron that cant drive next to you.

now i c y i dont live on the east coast any more. i got nailed in indiana doing 87 in a 45 construction zone and still paid only $190. and it stayed off my record. i drag on the hwy, but thats when i get off work at 4am. but everything is location. and it doesnt matter if ur speeding or following all the laws. every accident i've been in ive been when im doing the speed limit or less and obeying the law. u only controll a portion of what happens. everything else is in the hands of the moron that cant drive next to you.
Er ........ how many accidents have you been in and how long have you been driving?

now i c y i dont live on the east coast any more. i got nailed in indiana doing 87 in a 45 construction zone and still paid only $190. and it stayed off my record. i drag on the hwy, but thats when i get off work at 4am. but everything is location. and it doesnt matter if ur speeding or following all the laws. every accident i've been in ive been when im doing the speed limit or less and obeying the law. u only controll a portion of what happens. everything else is in the hands of the moron that cant drive next to you.


"the moron that cant drive next to you" aka everybody on this forum who thinks theyre some kind of hot shot driver and drag race on public highways at speeds of 100+.

You raise an interesting point: "it doesnt matter if ur speeding or following the laws". Yeah that makes a whole lot of sense...
Ive been in a few accidents doing the speed limit or less myself but heres the difference: Some of my buds who wrecked doing high speeds died. I wonder what killed them: the high speeds maybe? It certainly wasnt jumping that fucking knoll doing 35.

"U only control a portion of what happens"
wake up pal, control is an illusion. Can you actually predict what will happen next? No, nobody knows whats gonna happen next....not even "professional drivers"

Back to the topic of this forum, I wouldn't be suprised if a GT could do 147, not saying he necessarily did it but considering I hit 125 in my plymouth acclaim until i hit the governor. with a tiny bit left to go. Granted i do know of similar Cars which have kept up with my friends SRT4. Turbo of course but i think it is still amusing to think of a Grandma car keeping up with what many Neon owners consider one of the fastest cars on the road.

iv been in 2 acc. neither my fault. like nyc, people in chi cant drive. whats different about me and my friends is i know when 2 back off the thorttle. my buddies dont. 2 r lucky not 2 b dead\a coma\in jail. ur right there is no control, only choices. thats what makes driving so dangerious. there r so many other people chosing 2 do what they want 2 do that the risks are limitless. notice how the drunk driver is always the one to live? y is that? lifes a rush. everyone my age thinks that were flawless and cant b hurt. bs. everyone dies. its not the fall that kills you, actually its kinda fun. its the sudden stop onto an ungiving surface that kills. most of the time for the people like me, around 21, that surface is reality.

147 is impossible. Everybody knows that the N body is not a true performance machine. The grand am is the same thing as a malibu and an alero under its skin (used to be the same as a skylark and an achieva). So it is clear that these other cars are not high performance viehicles. Unless you believe that it is possible for a chevy malibu to fly by you at 147 then a grand am will never do it either. There is no way that a grand am would go this fast stock...you would probably have trouble getting a true sports car (like an F body) that fast stock, governor or not.

a comptuer governor can be removed with a cpu program...usually places will not do this though :) you have to do it your self and have the equipment to do it lol and z rated tires rock! they a rated at an unlimited speed :-P

147 is impossible. Everybody knows that the N body is not a true performance machine. The grand am is the same thing as a malibu and an alero under its skin (used to be the same as a skylark and an achieva). So it is clear that these other cars are not high performance viehicles. Unless you believe that it is possible for a chevy malibu to fly by you at 147 then a grand am will never do it either. There is no way that a grand am would go this fast stock...you would probably have trouble getting a true sports car (like an F body) that fast stock, governor or not.


governer removed and gears retuned a grand am can hit 147, not safely by any means, but it is possible, performance or not, its really the gearing that makes the difference, now, this thread was dead for a while, and i dont see any point in reopening it in order to state a point which has already been discussed

ah that engine looks shweet...would it fit into a 92 ga? it has a 3.3 in it stock? thats the 3800 sc hehe that would rock... and yea to safely hit 150 youd hafta do some suspension and drivetrain upgrades...strut tower braces anti sway bars performance shocks/struts everything. how much can you find the 3800 sc for? used? totaled car at a junk yard or what not? just curious :)

you could prolly drop a 3800 in it i you really wanted one, you would have to do some frame modifications tho, this is not your car obviously, but it will give you an idea of what has to be done to drop a diff engine
http://www.cardomain.com/memberpage/526752
probly not very practical for you tho, plus a supercharged engine would be hell on your tranny

as far as the price goes you can fine used ones for around 3g i believe i was just looking but i couldnt find the site i was thinking of that sells them

i found a few used ones wiht under 50k miles for around 1200 actually and i was also reading that the 3800 and the 3300 (what i have) are the same excpet the 38 has a different bore.. and the one i found for around 1200 has the tranny with it...this engine is having some major problems...so i might need to replace it soon anyways...=/ hope not but i dont know

that cavalier is bad ass lol....we have sunfire as well...that would be a fun swap for the sunfire :-P lol

sweet

its possible to hit 147 stock with comp upgrade. i always hit 127-8 stock in 3rd gear and feels like it still wants to pull. oh, the grand am is nothing compared to a malibu or achieva, same motor and trans but different tunning and trans gears. the LA1 can handle lots of power.
im planning to install this turbo kit around labor day next week.

http://www.turbochargedpower.com/99-04%20Grand%20Am.htm

some of us already have it....who doesnt know about it? everyone knows i hope.