syP

my buddy came down from Rockford illinois.


he has a Grand Prix GTP with the following mods...

# 3.5" Pulley(stock is 3.8") on about 12psi... stock is 5psi
# P&W Plog (that is a ported exhaust manifold)
# ZZP PCM
# AutoLite 104s
# 180 Tstat (stock is 194)
# 3'' DownPipe
# Deleted cat
# No ubend
# No resonator
# FWI

Here is HIS speedo Video.. as you can see it has great topend.. http://media.putfile.com/GTP-30-120


all i got is the Ingalls and the GMPP touring.


We did a few races... im only going to post the ones which were clean races...


all the other ones.. (roll and dig) that i am NOT showing are either because..


a. i shifted too fast and didnt engage 2nd gear (seriously.. cable shifters SUCK)

b. Clutch slipped at high rpm shifts (once again shifting too fast)... man i miss my SHO.. that thing could handle it


so weeding those out... we have 2 races.


35mph, and 40mph.

35 - ~100mph = http://1997gtp.net/Videos/SSvsxr7man46_35mph.wmv

40 - 140mph = http://1997gtp.net/Videos/SSvsxr7man46_40-140.wmv

^^^ in this video my buddy got scared who was taping.... so he shut the camera off 2 seconds earlier... as you can see right before it ends i start to gain forward... i ended up a nose ahead and still pulling (go DOHC! )


When he comes down next time.... in a few months he will have a 3.4" pulley and a set of 1.9:1 rockers (its a pushrod thing )

I will have my stage 2 kit with ex. ho. manifold.... so i should walk him easily

lsjwannabe

iTrader: (1)

no way he is pushing 12 pounds on that big of a pulley more like 8

DC52NV

no need to make a thread in two different sections. deleted your other thread.

syP

i scanned his car with my LS1M (its like a aeroforce gauge) and it reads 12#'s past 5500rpm.


we cant figure out why.

tREBs

wow nice runs! glad to see you had a video as well!

Red2.4SS/SC

that gtp is slow, race one with a 3.25 pulley,160 degree t stat , thrasher custom tune , slp long tube headers , no cat , flowmaster cat back, shift kit , ported throttle body , plugs, wires , and dot compounds then tell me how you do, with those mods i just listed it should be able to achieve a 13.4 consistently , and there is NO WAY he is running 12 pounds of boost on a 3.5 , a 3.25 barely yields 11 check your numbers

lsjwannabe

iTrader: (1)

good runs. its just with that free flowing exhaust to he will not push that unless he has a smaller pulley than he is telling you

did i miss something he never claimed the gtp he raced was fast just said high 13's

syP

ok.. there is no need to debate this...


incase you didnt know... i have a GTP.. and have had it for 3 years now.. it runs mid 13s... and i basicaly know everything there is to know about it. (so its not like im going off what he said)


he has 12 psi on his car..

i measured his pulley, and both his boost gauge and my scanner read 12psi... leave it at that.



here is my GTP

lsjwannabe

iTrader: (1)

nice ride

syP

thanks lsjwannabe



also.. since you think you know so much about the grand prix Red2.4SS/SC,

he has a 99 GTP... 99 happens to be the year of the freak.

there are a handful of grand prixs out there (most from 99) that run SIGNIFICANTLY faster times then they should with the given mods... its just how the car is.


and look at his SPEEDO video... i think that is pretty damn fast for a 3.5 " pulley... there was a multiple page thread/debate over at www.clubgp.com because of his speedo video. people did not believe he had a 3.5" pulley on there

lsjwannabe

iTrader: (1)

car seems like it moves good, the thing is it has the ported mani and dp which will in turn lower the boost so what if he didnt have those mods? thats a lot of boost for a big pulley

syP

yea like i said.. we cant figure out why....


my car has a 3.4" pulley.. and i get 11psi....


but then again i have Headers, and rockers so my PSI will be less then a car without aftermarket headers or rockers


nothing else is out of the ordinary, he is gettin no knock either.... so he is just not gonna complain and be happy with what he has


wish mine responded that well

lsjwannabe

iTrader: (1)

wait till you get your parts you will be pleaseantly surprised. i take it your looking to keep your warrenty cuz you didn't go aftermarket.

syP

yea.. after going through 2 engine with my GTP, i wanna stay with a warranty...

you dont know how tempting it is though for me to rip open the valve cover and throw some cams in here... oh well..


i need this warranty

lsjwannabe

iTrader: (1)

screw cams smaller pullies are the ****!

syP

yes.. but cams allow even smaller pullies


cant wait for this s2

lsjwannabe

iTrader: (1)

you don't want to go lower then me i run a 2.5 and every mod besides full exhaust which will arrive shortly surprisingly no blown piston's or broken axle's yet im lucky. But my dad and bro work for the dealer so i kinda don't have to worry about the warrenty

Red2.4SS/SC

gtp's are SLOW, unless you have 10,000 , ill pull a you here " i used to own one also" and it ran LOW 13's with everymod i listed earlier , stock psi on a m90 is 6 lbs not 5 and a 3.5 pulley WILL NOT put you at 12 lbs GUARANTEED , also arent you on gp-owners.net or grandprixowners.com , that car looks familiar , and as far as your 99 gtp statement thats all subject to opinion thats like saying that the 06 cobalt ss/sc is significantly faster than the 05 bc there are more 06's with better times than 05's with the same mods you get what im saying ??

lsjwannabe

iTrader: (1)

actually the 06's are faster becuase of some tuning with the pcm in the 05's is jacked around and it bleeds boost.

Red2.4SS/SC

ive ran an 05 and we were neck and neck he had stage 2 and gm cat back i had stage 2 with zzp header and dp

lsjwannabe

iTrader: (1)

never ran one personally so can't say but just tuning can fix the problem

ZX2Fast

Reading about these SS/SC's, I've found that stock or mildly modded ones run mid to low 14's. Even the stage 2 averages low 14 second runs. So, if this GTP is running high 13's, then you shouldn't be able to beat him. Somehow I think he only ran a high 13 once or one of you sucks at driving.

blownssdel

i ran a 14.2 at 101 with only the injen on stock tires. from a 35 roll, not having to deal with the launch, it is likely the cobalt would keep up

Red2.4SS/SC

wow , first off GTP's have NO wheel hop , secondly there automatic (easier to drive consistently ) , Third , ive seen a stock cobalt pull a 14.1 twice , fourth - that gtp does run high 13's seeing is how i used to own one that was a little bit more modded and i was running mid to low 13's , and fifth - a chevy cobalt that runs a 14.2 will probably be able to keep up with a car that runs a 14.0-13.9 from a 40 roll !!

Mines_Better

dumb post, that is a COMPLETELY different car. he never said the thing was "fast", he just listed what it had.

also, about the stage 2 times... a stage 2 cobalt with a breathing driver can hit 13.9. its all about the launch. im sure the GTP has the launching advantage. these crappy times that are being referred to are those of crappy drivers.

think about a roll race between a stage 2 cobalt and a stock STi. its waaaaaaaay different than a dig race.(start a new thread if this is gonna become a huge debate, dont hijack the thread)