WTT 97 Modded Grand Prix GTP

[Nachius]

White 2-Door Coupe
around 143k miles
Sunroof
Heads Up Display

Intense Custom PCM
TOG Silver Ceramic Headers
Milzy Motorsports Custom Exhuast
Intense Modular Pulley System with 3.2 pulley
Newly rebuilt tranny 5K miles on it
Lucas 42.5# Injectors
ZZPerformance ICCU (tune you timing and a/f on the fly)
Walboro 255lph Fuel Pump
Caspers Fuel Pump Hotwire kit
Caspers High speed fanswitch
Gauge Pod with mechanical boost and oil pressure gaugaes (Autometer Phantom)
Jacobs spark plug wires
Intake w/ 9” K&N
Valve Cover Breather

new walbro fuel pump
extra set of gold crosslace rims with tires
new high flow fuel filter ( needs isntalled I may do this before trading)
99+ coolant bottle ( needs isntalled may install before trading)
new front valve covergasket
new radiator
new tensioner pulley

Could probably use new plugs, but I can arrange getting those as intense-racing owes me a favor

I can include a pair of Nitto Drag radials and a 3" cutout for the right deal.

Now for the problem:
Fuel gauge does not work, but a working 97 sending unit and 2nd brand new walbro 255 pump will be included.

Passenger side trim needs painted and installed, front bumper and right front fender need touched up or repainted as they are flaking.

The tensioner pulley broke a few weeks ago, this caused the car to overheat trying to coast to my mechanic a few hundred feet from where this happened, this popped the radiator, and now it's burning a little bit of oil.

I would love to keep the car and fix it the rest of the way, but this is my daily driver and can't be without a car while I fix it.

I'm entertaining trades for a good daily driver that gets decent gas mileage, but really if it's reliable and I like it I may trade.

Post here and let me know what you are offering in trade. Again car still runs solid, but I don't have the time to fix it right.

Thanks,
Shane/Nachius

[Nachius]

Re: WTT 97 Modded Grand Prix GTP

Any interest at all?

[ReD715]

Re: WTT 97 Modded Grand Prix GTP

You might want to try throwing on a bigger pulley. With listed mods, a 3.4" to 3.5" should be good, a stock pulley is best.

[Nachius]

Re: WTT 97 Modded Grand Prix GTP

It wasn't the pulley that caused the damage it was a broken tensioner pulley. With the 3.2" it was making about 12psi at WOT. With a FULL exhaust,intake, autolite 103s, 42.5# injectors and being able to control the a/f and timing with the ICCU above and beyond the custom tune from Intense I could probably safetly drop it to a 3" pulley if I purchased a wideband setup for tuning purposes. Going to a stock 3.8" pulley would offset everything done to the car and a 3.4" wouldn't show the cars potential.

With FWI intake and ubend/cat delete, and Autolite 104s I ran a 3.4" pulley with 0 knock on my prior GTP.

For the record the previous owner ran the car at a 13.3 1/4 mile with nearly the current setup and it had more potential in it.

[blown00]

Re: WTT 97 Modded Grand Prix GTP

It wasn't the pulley that caused the damage it was a broken tensioner pulley. With the 3.2" it was making about 12psi at WOT. With a FULL exhaust,intake, autolite 103s, 42.5# injectors and being able to control the a/f and timing with the ICCU above and beyond the custom tune from Intense I could probably safetly drop it to a 3" pulley if I purchased a wideband setup for tuning purposes. Going to a stock 3.8" pulley would offset everything done to the car and a 3.4" wouldn't show the cars potential.

With FWI intake and ubend/cat delete, and Autolite 104s I ran a 3.4" pulley with 0 knock on my prior GTP.

For the record the previous owner ran the car at a 13.3 1/4 mile with nearly the current setup and it had more potential in it.

So have you scanned your car at all for KR? I guarntee you have it. Just as red715 said, you should have no smaller than a 3.4/3.5 on it. You have intake, exhaust, with plugs. The injectors aren't doing anything for performance at your level of mods.

Good idea, sell it to someone who doesn't know anything about gtp's, drive the piss out of it and complain there is a knocking sound from the motor. Not to mention intense pcm's are notorious for running too much timing.

Speaking of, how much are you running?

[Nachius]

Re: WTT 97 Modded Grand Prix GTP

Your post will probably be deleted anyways since it has nothing to do with selling the car and you obviously are not interested, but exactly how much research have you done pertaining to knock retard?

Most of the people here DO know about GTPs, I can count the number of times I've gone WOT on one hand since I've owned the car. It has been tested and tuned.

As far as knock and Timing if you would read I have an ICCU which allows me to adjust both timing and A/F so there is no "certain" number that I am running. Right now fuel is 100% and I'm actually running FAT at 75% throttle most of the time and I have timing retarded 4 degrees.

Knock Retard or detonation is caused by something in the chamber igniting the fuel OTHER than the spark plug, this can be caused by bad gas, running too lean, too much timing causing too much heat, spark plugs that are too hot or imperfections in the cylinder etc.

Saying that the injectors have no effect on knock retard in my setup is ignorant. With 36# injectors and 3.2" pulley you most definitely will run lean and experience knock because you begin maxing the injectors right around that point. You know nothing of the car's setup or tune yet you come in here telling my potential buyers/traders that the car is going to blow up? Where do you get off?

Typically if you slap a 3.2" pulley on a GTP with intake/exhaust and autolite 104s you will see HORRIBLE Knock Retard, but that isn't the case here running a custom tune, ICCU, 160* thermostat, Autolite 103s which are 3 heat ranges colder than stock at a smaller gap, always on 93 octane at times I see 2-3 KR, but before making a claim about a "specific" car's setup you should do a little research or at least ask the individual with the setup before bashing publicly.

I am well respected in this community and many members will vouch that I take care of my cars. I've owned 3 f-bodies and this is my 2nd GTP and when I do things I do it right.

[blown00]

Re: WTT 97 Modded Grand Prix GTP

Your post will probably be deleted anyways since it has nothing to do with selling the car and you obviously are not interested, but exactly how much research have you done pertaining to knock retard?

Most of the people here DO know about GTPs, I can count the number of times I've gone WOT on one hand since I've owned the car. It has been tested and tuned.

As far as knock and Timing if you would read I have an ICCU which allows me to adjust both timing and A/F so there is no "certain" number that I am running. Right now fuel is 100% and I'm actually running FAT at 75% throttle most of the time and I have timing retarded 4 degrees.

Knock Retard or detonation is caused by something in the chamber igniting the fuel OTHER than the spark plug, this can be caused by bad gas, running too lean, too much timing causing too much heat, spark plugs that are too hot or imperfections in the cylinder etc.

Saying that the injectors have no effect on knock retard in my setup is ignorant. With 36# injectors and 3.2" pulley you most definitely will run lean and experience knock because you begin maxing the injectors right around that point. You know nothing of the car's setup or tune yet you come in here telling my potential buyers/traders that the car is going to blow up? Where do you get off?

Typically if you slap a 3.2" pulley on a GTP with intake/exhaust and autolite 104s you will see HORRIBLE Knock Retard, but that isn't the case here running a custom tune, ICCU, 160* thermostat, Autolite 103s which are 3 heat ranges colder than stock at a smaller gap, always on 93 octane at times I see 2-3 KR, but before making a claim about a "specific" car's setup you should do a little research or at least ask the individual with the setup before bashing publicly.

I am well respected in this community and many members will vouch that I take care of my cars. I've owned 3 f-bodies and this is my 2nd GTP and when I do things I do it right.

Actually, there is a 'certain' degrees of timing that you are running when going WOT. You can't see that with an ICCU. It only lets you advice timing. I'm not sure if that display's KR, but I think it does. Stock injectors are good usually to about a 3.0 pulley non ic, and a 2.8 ic, but it depends on the car. All you can do is scan and check the IPW's and see if they are maxing. Another thing I'm pretty sure you can't do with an ICCU.

Your custom tune must be amazing then, and I give props to you for tuning on an ICCU on a narrowband O2. Your car must be lucky to have 2-3*, which isn't good to begin with, to be running a 3.2 on those mods.

I'm not here to bash your thread or anything. I am just giving information to those who may be interested. Our posts would show that some knowledge and research would be needed to buy a modded GTP, as well as begin modding one.

Most people here know OF GTP's, but they don't know about them. Half the people here don't know the difference between L36,L67,L32,L26.

I've seen people who have blown up their GTP for running too small of a pulley without supporting mods, which, I don't know of anyone with only your mods getting away with a 3.2.

Simple as that.

[blown00]

Re: WTT 97 Modded Grand Prix GTP

It wasn't the pulley that caused the damage it was a broken tensioner pulley. With the 3.2" it was making about 12psi at WOT. With a FULL exhaust,intake, autolite 103s, 42.5# injectors and being able to control the a/f and timing with the ICCU above and beyond the custom tune from Intense I could probably safetly drop it to a 3" pulley if I purchased a wideband setup for tuning purposes. Going to a stock 3.8" pulley would offset everything done to the car and a 3.4" wouldn't show the cars potential.

With FWI intake and ubend/cat delete, and Autolite 104s I ran a 3.4" pulley with 0 knock on my prior GTP.

For the record the previous owner ran the car at a 13.3 1/4 mile with nearly the current setup and it had more potential in it.

No...Absolutely not. Unless you run like 5* of timing.

FWIW: more timing and larger pulley > less timing smaller pulley

[JohnD.]

Re: WTT 97 Modded Grand Prix GTP

Your custom tune must be amazing then, and I give props to you for tuning on an ICCU on a narrowband O2. Your car must be lucky to have 2-3*, which isn't good to begin with, to be running a 3.2 on those mods.

Simple as that.

You sound educated enough on the subject to know that each of these cars is different. I've seen guys post twice that amount of KR from COMPLETELY STOCK VEHICLES. Shane is running a full intake, headers & custom exhaust, CUSTOM tune, ICCU and is seeing 2-3*KR.......... that's not bad. We all know that 0* KR is ideal but not likely in most cases due to the super sensitive knock sensor these use. Throw a set of rockers or a cam at this thing and it'll run 12's all day.

[Mogobs30th]

Re: WTT 97 Modded Grand Prix GTP

Nothing personal Tim, but Shane and John BOTH know their ****. This is Shanes SECOND GTP, and JohnD. is also a former (I think former) owner of one himself.

[blown00]

Re: WTT 97 Modded Grand Prix GTP

Nothing personal Tim, but Shane and John BOTH know their ****. This is Shanes SECOND GTP, and JohnD. is also a former (I think former) owner of one himself.

I know. I see and talk to people everyday all who own GTP's. I see peoples problems and mods, and I don't know of anyone running a 3.2 with just those mods. Maybe being on clubgp, we are more conscience about KR and such than others.

It's also useless (insert better word) to run a pulley that is giving you knock. It is retarding your timing and losing power. Like I said before, more timing + larger pulley > less timing + small pulley.

[slpbirdy00]

Re: WTT 97 Modded Grand Prix GTP

I like candy.

Common guys...its just a pulley.

[blown00]

Re: WTT 97 Modded Grand Prix GTP

I like candy.

Common guys...its just a pulley.

Most people here know OF GTP's, but they don't know about them.

I rest my case.

[teal99camaro]

Re: WTT 97 Modded Grand Prix GTP

how much $$ do you want for the car? Also with a new radator, tensioner and and sending unit will the car be good to go? Or was the engine damaged when it overheated?


Would the drag radials fit on some stock camaro wheels? I'm looking for DRs for my camaro.

I've got a 1999 Bravada smart track with about 130k on it. Mad reliable. I use it for the bad weather. I'd trade that.

What color is the GTP

[blown00]

Re: WTT 97 Modded Grand Prix GTP

how much $$ do you want for the car? Also with a new radator, tensioner and and sending unit will the car be good to go? Or was the engine damaged when it overheated?


Would the drag radials fit on some stock camaro wheels? I'm looking for DRs for my camaro.

I've got a 1999 Bravada smart track with about 130k on it. Mad reliable. I use it for the bad weather. I'd trade that.

What color is the GTP

Hitup gtped@msn.com He is the Grand Prix parts guy. Great prices on everything.


Now HONESTLY, how much would you want for the DR's? What size? How many passes?