4sconcepts

I have a 2001 Z28 M6 I also have a 97 grand prix GTP 4 door which I was driving my GTP. Going down 485 the other night and saw a firebird pulled up and started to jerk some firebird slows down to 35mph and 3 honks we take off hung with it till 100mph it only pulled a half a car on me even in the loss it was victory the firebird had a auto but my 4183 lbs GTP hung with a f body and also found it was a 97 LT1 with made me feel real good my little 3.8 liter is cool to.

z_speedfreak

iTrader: (3)

i smell some BS.. i used to beat on GTP's in my old 85 z28, my 96 would destroy one...

4sconcepts

yes to a stock GTP but when you change the pully out add intake and glass pack exhoust the car can run very stroung like i said i did not beat the firebird hung with it a 97 GTP stock has 220hp 5 lbs of boost after new pully runs 11lbs of boost so not bsing and if the firebird was just stock then yes a GTP could hang with a stock auto 97 firebird and the 96 LT1 was not as decked out like the 97 seeing how the 97 was the last year they made it their is a big diff i had a 97 Z28

wickedwarlock

iTrader: (4)

Is the GTP modified? I would assume so.

89tang

iTrader: (15)

I don't find it to be bullshit, infact i used to do the same to auto LT1's in my 2002 with a 3.4 pulley, CAI, PCM and u-bend delete. When i had all my other mods it would hang with our 99 A4 TA.

And was your old 85 modded? Cause if it wasn't i wouldn't see it being much of a fight for a stock L67 GTP. Those things have enough power to pull a sick ***** off the **** pot even?????????

nytmare1

iTrader: (7)

I've owned a '97 and '99 GTP and when modified... those things can scream like a raped ape (comparitively)! My '97 was turning low 12s in the quarter and my '99 was on it's way before it burnt to the ground.

Actually a stock GTP ('97) has roughly 260hp (@ the motor), 285ft/lbs of torque, and boost runs at 7lbs. An average GTP (stock) will run mid 14s all day at the track. Fortunately, the L67 is very mod freindly and can take quite a bit of abuse. The 4T65E is a different story, but once hardened a little can take a decent amount of abuse too. My '97 had 192K miles on the original motor and tranny before I got rid of it for my '99. Was still running strong too.

Marc

ls1-ss

iTrader: (1)

I agree with 89stang, the GTP's can be made surprisingly quick for cheap money. My brother had a 98 2dr GTP w/3.25" pulley,thrasher cai, reprogramed pcm, adj fpr and a borla catback. He ran a best of 13.7 @ 101 mph with a so-so 2.1 60 ft time, I know that thing had a 13.5 in it with some good 60 ft times. He beat up on alot of cars that had know idea what hit them, light modded 5.0's & 4.6's mustangs, s2000, countless hondas, we even edge out a 93 rx7 turbo once, which everyone called bs on, but I ws riding shotgun a witnessed it myself.

MaSTi

Yeah the GTPs are definatly no slouch. When done right they can move. I got a buddy modding his up as we speak.

wickedwarlock

iTrader: (4)

I know that a GTP can me fast modded. That's not what the thread says and no response. A 97 gtp is only 240hp and they run low 15s. Buddy has one and the air doesn't get much better than this area. A
LT1 is 285hp, and it's 400+ pounds lighter. I'm not nocking the gtp, but he didn't respond to say it wasn't stock? Even in the crappy 35mph roll, the top of second in the lt1 auto is pretty quick. There's a big difference from a low 14 second car to a low 15 second car.

Edit: I didn't read 3rd post, lol. It's modded. Must have been writing when I was writing? Yeap, I checked the time post!

89tang

iTrader: (15)

A stock GTP, most will run mid 14's. Mine did and with those few mods i ran 13.98 with a crappy 2.1 60" time. Some have even gotten to low 14's stock with a launch from what i have read.

And yeah i have first hand experiance with the crappy trans in those things lol, after my last bout of mods i demodded cause the tranny started slipping AGAIN after i had just had it rebuilt about 1 1/2 ago.

TopendLt1

I ran a 13.8 with just the mods i have now.

CrabhartLS1

that was the longest sentence ever.

TryingT/A

iTrader: (5)

why modify a gtp when your wife will smash it

hasn't happened to me but i had a 99 gtp and got rid of it before it bit the dust like so many others on the road. A 4000 lb sedan with front wheel drive is nothing to be racing in. There something about the grand prix that curses them to crash. my front wheels wouldn't stay straight if i punched the gas. I've seen some heavily modified gtps: they amount to a stock ls1. The gtp was a good grocery getter and had some kick, but the mpg were worse that my caddilac sts and the engine's good till 100k. My friends stock engine blew at 102k.

oh yeah, a pulley and intake barely give the gtps a nudge from stock

1999BlueTA

iTrader: (34)

I have also owned a 2-door 97 GTP and I didn't know that they were that heavy I thought around 3500 for coupes and 3650 for sedans and they are not slow the are low 15 second cars stock with very bad drivers who don't know how to launch them because the have a lot of low end torque and are front wheel drive they are mid 14 second cars stock with a decent driver and with very few mods(3.4 pulley, CAi, u-bend delete, and PCM) 13 second cars and were talking about an auto Lt1(not saying there slow) here they are not top end kings like the Ls1's and with the mods that I just described they can hang or take stock Lt1's from a dig or roll go over to clubGP and tell them that a Cai and pulley won't help a GTP much and that the motors will only last 100K miles and they'll tell you the complete opposite because all 3800's that I know of are very reliable and are really great motors and are known to last for a very long time and GTP's are very nice cars in looks, quality and performance in my opinion and I would happily own another one even though I like my 99 T/A and f-bodies better.

markp03

iTrader: (4)

like trying ta said....my 98 gtp's front end would jump one way or the other when i would floor it....kinda scary

traded it in for a 99 f250 to tow my ls1 around with =)

nytmare1

iTrader: (7)

I must agree with 1999BlueTA. My '97 GTP responded very well to many mods. A simple 3.4" pulley will add roughly 25hp and a decent catback on CAI addes another 10 - 12hp. Work on the suspension a little bit and you get great traction (for FWD), awesome handling, and very little torque steer.

A short list of my mod's included: 3.0" pulley, water injection kit, catback, CAI, reprogrammed PCM, 1.9 rockers, upgraded TB, lowered, Koni struts, front/rear swaybar, and tranny cooler. With these mods, and another short list of others, I was turning 12.2 in the 1/4 mile with a fairly crappy 60' time (yeah... I suck at launching). Not too shabby.

I had 192K miles on my GTP when I got rid of it. It had the original engine and tranny and both were working very well. BTW, I was getting low to mid 20 mpgs in the city (depending on the city) and up to 33mpg on the highway.

The only reason I got rid of it was because I wanted to go another direction with another GTP. So, I figured I'd start from scratch.

Marc

Xtreme57

iTrader: (6)

My Mom had a 97 GT and then an 02 GTP. Both 4dr and FUN. I loved the way that gen looked. But then of course GM had to screw it up and pull it b/c of the GTO. Not knockin the Goat, but it would have been nice to have the goat look a little different and keep the GP lookin hot.

Again, not quite the same as my 01 TA, but for a sedan, it was a good sleeper.

rasputin

iTrader: (3)

all this talk about GTP's, hah, lets not forget the Buicks! The Regal and the Riviera come with the beastly L67 too . My Riviera definitely isnt as fast as my LT1, but damn does it pull hard in first gear and it has suprised a lot of my friends and their cars. For 150$ you can add 30-35 front wheel horsepower and over 100 lb/ft of torque, which is ridiculous! The L67 is a complete torque monster when modded in all of its fine forms . The guy that owns mecham motor sports dynoed his gtp with a 3.4, catback, and tune @ 335ft/lbs to the wheels!

I consider these cars to be one of the most highly underrated vehicles of all time for the price, performance, and modability. I wish more people knew what they were and were interested in buying them.

89tang

iTrader: (15)

What are you talking about? The motors are solid and will last well into the 150k range or more. I've saw ppl. on clubgp that have started modding at 100k. If an engine blows on an L67 it's probably because the owner didn't scan correctly when they modded knock kills those motors, they think ohh well i'll slap on a 3.0" pulley and that's it . I've had mine modded pretty well pushing 15-16lb's of boost and had the living **** ran outta it still runs perfect 85k on the clock. Oh wait there was a problem i have a leaky lower intake gasket now.

ski23

iTrader: (21)

sorry to hijack the thread, just demodded the wifes gtp. minor mods, best time was 13.5@101 with a 2.01 60'. these lil fackers run. like posted above,keep the knock down and they last. have the demod parts FOR SALE if anyone is interested.

intense quickchange pulley system for supercharger hub/3.4/3.25 pullies
under drive alt/water pump/tensioner
thrasher cold air(descent shape) with 9" cone cpu tray
3 gauge grey pillar
mechanical oil press gauge
boost/vac gauge
160 drilled t-stat

pm me if interested in any,,thanx