# Grang Prix GTP **URL:** \ **Category:** PittSpeed Automotive\ **Created:** [March 5, 2004, 5:53pm UTC](https://forums.speedlife.net/t/grang-prix-gtp/164602 "2004-03-05T17:53:34Z")\ **Posts on this page:** 14\ **Page:** 1
**Author:** ![bics56](https://avatars.discourse-cdn.com/v4/letter/b/47e85d/32.png) [@bics56](https://forums.speedlife.net/u/bics56)\ **Post date:** [March 5, 2004, 5:53pm UTC](https://forums.speedlife.net/t/grang-prix-gtp/164602/1 "2004-03-05T17:53:34Z")
Anybody here know a lot about these cars? I am getting one and want to mod it mildly. I read up on it a little and to my understanding you cannot go any smaller than a 3.4" pulley w/o putting in new rocker arms. If that is the case can I get into the 13’s with a 3.4" pulley and an intake? ---
**Author:** ![Steel\_City](https://avatars.discourse-cdn.com/v4/letter/s/e36b37/32.png) [@Steel\_City](https://forums.speedlife.net/u/Steel_City)\ **Post date:** [March 5, 2004, 6:07pm UTC](https://forums.speedlife.net/t/grang-prix-gtp/164602/2 "2004-03-05T18:07:35Z")
> _Originally posted by bics56_ > **Anybody here know a lot about these cars? I am getting one and want to mod it mildly. I read up on it a little and to my understanding you cannot go any smaller than a 3.4" pulley w/o putting in new rocker arms. If that is the case can I get into the 13’s with a 3.4" pulley and an intake?** I would buy an 03-04 cobra motor and put it in if you want to go fast:D ---
**Author:** ![bics56](https://avatars.discourse-cdn.com/v4/letter/b/47e85d/32.png) [@bics56](https://forums.speedlife.net/u/bics56)\ **Post date:** [March 5, 2004, 6:12pm UTC](https://forums.speedlife.net/t/grang-prix-gtp/164602/3 "2004-03-05T18:12:07Z")
do you have a pulley puller??? ---
**Author:** ![Steel\_City](https://avatars.discourse-cdn.com/v4/letter/s/e36b37/32.png) [@Steel\_City](https://forums.speedlife.net/u/Steel_City)\ **Post date:** [March 5, 2004, 6:15pm UTC](https://forums.speedlife.net/t/grang-prix-gtp/164602/4 "2004-03-05T18:15:10Z")
> _Originally posted by bics56_ > **do you have a pulley puller???** yep ---
**Author:** ![bics56](https://avatars.discourse-cdn.com/v4/letter/b/47e85d/32.png) [@bics56](https://forums.speedlife.net/u/bics56)\ **Post date:** [March 5, 2004, 6:20pm UTC](https://forums.speedlife.net/t/grang-prix-gtp/164602/5 "2004-03-05T18:20:44Z")
Good I want to get a new pulley asap. ---
**Author:** ![SSsuperchargedE](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/sssuperchargede/32/5958_2.png) [@SSsuperchargedE](https://forums.speedlife.net/u/SSsuperchargedE)\ **Post date:** [March 6, 2004, 7:23am UTC](https://forums.speedlife.net/t/grang-prix-gtp/164602/6 "2004-03-06T07:23:52Z")
you’re going to want to get that thing breathing better before you do a pulley, or kr will own you… ---
**Author:** ![97greengtp](https://avatars.discourse-cdn.com/v4/letter/9/bc79bd/32.png) [@97greengtp](https://forums.speedlife.net/u/97greengtp)\ **Post date:** [March 7, 2004, 3:56pm UTC](https://forums.speedlife.net/t/grang-prix-gtp/164602/7 "2004-03-07T15:56:00Z")
> _Originally posted by bics56_ > **Anybody here know a lot about these cars? I am getting one and want to mod it mildly. I read up on it a little and to my understanding you cannot go any smaller than a 3.4" pulley w/o putting in new rocker arms. If that is the case can I get into the 13’s with a 3.4" pulley and an intake?** > The least for 13’s is 3.4",intake, get rid of the stock U-bend and it is possible on a cool day with the headlight out and probally like a 2.0 60ft. I think SLEEPERGTP’s ran 13.9-14.0 with only those mods. ---
**Author:** ![GNocide](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/gnocide/32/5947_2.png) [@GNocide](https://forums.speedlife.net/u/GNocide)\ **Post date:** [March 7, 2004, 5:55pm UTC](https://forums.speedlife.net/t/grang-prix-gtp/164602/8 "2004-03-07T17:55:02Z")
> _Originally posted by 97greengtp_ > **The least for 13’s is 3.4",intake, get rid of the stock U-bend and it is possible on a cool day with the headlight out and probally like a 2.0 60ft. I think SLEEPERGTP’s ran 13.9-14.0 with only those mods.** you can go to 3.25 without rockers, but you need a pcm, downpipe and exhaust unless you get an intercooler.\< then you can go to a 2.8. sleepers car can do 14.0-13.9 with a 3.4 everyday. with better tires , he may be as fast as 97greengtps car. ---
**Author:** ![imported\_Sleeper](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/imported_sleeper/32/5939_2.png) [@imported\_Sleeper](https://forums.speedlife.net/u/imported_Sleeper)\ **Post date:** [March 8, 2004, 12:04pm UTC](https://forums.speedlife.net/t/grang-prix-gtp/164602/9 "2004-03-08T12:04:45Z")
3.4,cold air and down pipe,i ran numerous 13.9 and 14,s.on a good day i could,ve pulled a 13.7 or better with the right conditions. For now i would suggest a 3.4 and cold air system then drive it and you,ll feel the dif right away.For 13,s you want to get a new pcm remove the u bend and then you could hopefully break into the 13,s.I would reccomend colder plugs and a drilled t-stat to keep down that knock retard cause that is the biggest power killer on gtp,s. Check out [clubgp.com](http://clubgp.com) there is 16,00 members world wide and there is everything you want to know about gtp,s on there,pm me if you have any concerns or would like to join our local club gp. ---
**Author:** ![Steel\_City](https://avatars.discourse-cdn.com/v4/letter/s/e36b37/32.png) [@Steel\_City](https://forums.speedlife.net/u/Steel_City)\ **Post date:** [March 8, 2004, 1:09pm UTC](https://forums.speedlife.net/t/grang-prix-gtp/164602/10 "2004-03-08T13:09:14Z")
when are you getting it? i saw the dealership moving your car around today on my way home from work. whats happened to the fender:eek: ---
**Author:** ![imported\_Sleeper](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/imported_sleeper/32/5939_2.png) [@imported\_Sleeper](https://forums.speedlife.net/u/imported_Sleeper)\ **Post date:** [March 8, 2004, 4:54pm UTC](https://forums.speedlife.net/t/grang-prix-gtp/164602/11 "2004-03-08T16:54:51Z")
> _Originally posted by Steel City_ > **when are you getting it? i saw the dealership moving your car around today on my way home from work. whats happened to the fender:eek:** > :wtcslap: shhhhhhhhhhhhhh it,s made that way ---
**Author:** ![ociperformance](https://avatars.discourse-cdn.com/v4/letter/o/aeb1de/32.png) [@ociperformance](https://forums.speedlife.net/u/ociperformance)\ **Post date:** [March 23, 2004, 8:14pm UTC](https://forums.speedlife.net/t/grang-prix-gtp/164602/12 "2004-03-23T20:14:50Z")
I should put down a 12.9 or so as it sits right now. I have an intercooler that I designed for these cars and that will go on shortly after Im done with all the testing and such. I should be running a low low 12 by mid spring if the tranny holds that long:eek: ---
**Author:** ![GNocide](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/gnocide/32/5947_2.png) [@GNocide](https://forums.speedlife.net/u/GNocide)\ **Post date:** [March 24, 2004, 4:28am UTC](https://forums.speedlife.net/t/grang-prix-gtp/164602/13 "2004-03-24T04:28:17Z")
> _Originally posted by ociperformance_ > **I should put down a 12.9 or so as it sits right now. I have an intercooler that I designed for these cars and that will go on shortly after Im done with all the testing and such. I should be running a low low 12 by mid spring if the tranny holds that long:eek:** how much and let me know! i want one!🆒 ---
**Author:** ![imported\_Sleeper](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/imported_sleeper/32/5939_2.png) [@imported\_Sleeper](https://forums.speedlife.net/u/imported_Sleeper)\ **Post date:** [March 24, 2004, 10:06am UTC](https://forums.speedlife.net/t/grang-prix-gtp/164602/14 "2004-03-24T10:06:58Z")
> _Originally posted by Gnocide_ > **how much and let me know! i want one!🆒** > x29725r3475808975:D