1987fbd

Well I did and got my *** handed to me this morning. One of those where we are both in the turning lane and I have the inside turning left. Of course it merges to one, so he being on the outside guns it, me not sure if he is feeling like racin lost the jump on start. Well I start spinning in my mostly stock 305 4bbl while he continued to pull away and away and away while I had it floored. Wow those are fast cars. The bummer is i work with him and all he does is see me and another guy on this forum bs about these cars and mods. He has done nothing to his and its a v6
My question is I have a full exhaust set up ready to be put in Hooker headers with y-pipe and 3" catbak. Since I have the automatic 273 reaer end gears I bought a junk car with 323's or something close out of a manual and plan to put those in. With these changes are my chances good that i will take him next time?
My car right now is pretty much stock with just an open element and carb mods from this board. I am still emissions legal so i have all that crap as well.

ronterry

Are you talking about the 3.8 supercharged models?

I have the 3.8 in my LS (L36) with 200HP/225FPT, and they do have some go.

I think the 3.8 supercharged (L67) is 240HP/280FPT.

Changing gears might help off the line, but he also has some HP to back it up.
...also my Impala has a pretty lose converter, so if the GPrix deal has the same stall he'll be able to launch good off the line.

Those are hefty numbers your opponent has, but can be humbled with some good hardware like a cam or some heads.

Ron

tpivette89

i believe there was a turbo GP offered in 89'. it was a 3.1V6 and put out around 200hp (i could be off). im not sure what kind of E/T it got, but it should be able to take out an LG4. the turbo motor didnt last long, however, due to the introduction of the DOHC 3.4 V6 soon after

HrdRockA4305

I've talked to a guy who had a 3.1 Turbo GP, he said about the only thing he's raced that beat him was the new 3.8 GTPs with the blowers. I'll take it he dosen't race many V8 cars. This was quite a while ago, but it'd definately be a sweet car just to have. And suprise people with.

Crazy Firebird Kid

If it was in fact a turbo Grand Prix you should feel lucky. They aren't rare cars, but they sure as hell aren't something you see everyday. They were only produced for one year (I believe) and they were outragously (spelling?) priced so not a lot were sold. I've seen one before, but that was a few months ago.

sober333

i raced a 3.8 gtp and got whooped in my 1991 rs.

HrdRockA4305

I don't doubt it, they run mid 14s stock from what I've seen at the track. It'd take a lotta mods to make an LO3 do that. Definately would be a rockin daily driver, but I can't be any means afford one right now. (College Student)

BloodRedDragon

A little information on the car in question:

http://home.att.net/~aldridgec/TGP/TGP_introduction.htm

FyreLance

At the beginning of the article they mention the GP being 305HP, I do believe that is a typo.

BloodRedDragon

Yeah, well the more realistic production numbers are lower in the article. I must say that 305 hp is hard to believe, especially with a turbo on a 2-valve per cylinder engine not bumping the torque up higher.

Anyway, even with 205 hp and 225 ft.lbs., which I'm sure is accurate, that's plenty to blow the doors off alot of 305 powered f-bodys.

FyreLance

True story.

pimpinthaz28

He might not have been stock, cuz my friend had a turbo gp and it was quick, but my stock 305 H.O. 5 spd took it quite easily. But we stopped and then raced. I pulled hard on him until the turbo kicked in then he pull a lil on me but he never passed me. But with how he pulled on me from a roll he might have handed me my a$$ on a platter.

sober333

my stupid lo3 sucks i need to get better motor i am sick of being beat by v-6s

BloodRedDragon

Did your friend powerbrake? Those cars need to be powerbraked to maximize traction and spool up the turbo.

Cornflakekid

iTrader: (2)

I have raced a GTP, I believe it was a 2000 or
2001 model. It was some punk kid that raced me from one stop light to another. I beat him by 2 or 3 car lengths. However if he'd meet me on the highway it may have been a different story. At the time I was driving my 1986 Z28.
My mods at the time were a enegizer cam with a 460 Lift, Hooker Headers with 3' exhaust. Also a Accel Super Coil and Accel 8.8 wires. The Z28 had a 305 with a turbo 350 transmisson and the rearend was posi with 3.23 gears. At the time I didn't know how fast the GTP grand pix's were so I didn't consider it much of a threat. But looking back on it, if the kid had known how to drive it may have been a humbling experience.

88_RS_2.8

GTP's are a force to be reckoned with. My Mom used to own one its was a 98. My dad had a 88 GT Mustang 5.0 5 Speed. And the GTP would take him every time. All it had was a removed cat, and DynoMax mufflers. It would run 14.4 in the 1/4 at sea level. It'll surely smoke my V-6 for sure.


:hail: 3.8L Supercharged V-6 8psi of BOOST!

jimmy_mac

I raced a GTP a few months ago in my 87 305 HO TPI. It has 3.08 gears and a 5 speed. Stock exhasust manifolds and 3 inch single from the y-pipe. I was just barely able to pull on him. We raced 3 times and the result was the same. About half a car length at around 80 mph before we shut down. I guess they could run mid 14s but I don't think my car is running any quicker than a low 15.

Any way my motor has the L98 cam and I think the 87 HO heads are probably slightly better than the heads that came on the LO3. I'd bet you would have to upgrade the cam and heads to have a chance. I don't think gears alone would do it.

1987fbd

Wow thanks for all the replies.

Well after alot of about his car and why it ripped me a new one. He did decide to let me know he special ordered the car because they did not have any in Idaho for sale when it came out. So yes it is a 3.8.
Well we went at it again yesterday and this time I was on the outside and he took me again but I manually shifted my 700r4 that time and lost by half the distance. just goes to show you how important the driver is. He had me by about 1 and 1/2 car lengths after 80 mph.

So I do think gears will be all I need to at least meet him or beat him. Now he did say he was playing with me on that second race you think so? Noo! hope not

BloodRedDragon

So this guy's car is actually a newer one with the supercharged 3.8? Well, that being the case, you fared rather well. But I should point out that the final drive ratio (= axle ratio) is 2.93 on those cars, so you should give him a good run when you get the new gears.

By the way, the 1/4 mile times for stock GTP's is dependent on driver skill, and basically comes down to the launch. The times could be anywhere from low 15's to mid 14's, and occasionally higher or lower.