GTP

Gould Engineering | home

***Go HERE for time slips***

If I don't build a modification myself I will only buy top quality parts from someone else. That is my policy. In the Grand Prix Performance world those parts come from only two places. ZZ Performance and INTENSE Racing. I recommend these vendors over any other. They are the top shelf. End of discussion.

GENERAL INFORMATION:

1998 Pontiac Grand Prix GTP

graphite cloth interior

3.8 liter engine with supercharger

240hp/280lb-ft tq (stock)

Rockford Fosgate 8230 head unit

Monster cable micro XLN 4ch. RCA cables

Clarion 6.4" monitor flushed into sun visor

PS2 mounted in back seat center console

polished stainless steel trim rings for head unit and NOS switches

JL audio 12W6 subwoofer

Rockford Fosgate punch 200s amplifier

Castrol Syntec fully synthetic engine oil

K&N conical airfilter (RD-1450) in a custom fenderwell mounted CAI

Heat wrapped FWI tube

Custom bent 3" cat back exhaust with U-bend replaced

D.U.B 3.25" SC pulley

INTENSE 1.9:1 Rocker arms

Gatorback SC belt 4060660

Toggled TCS with a NOS saftey switch

Boost Valve adjusted downward

Modified transmission pan with cooling tubes, added drain plug

ZZP modified 160 Hypertech T-stat

ZZP Black poly engine mount bushings

NGK TR6 spark plugs (two ranges colder than stock)

Custom machined aluminum throttle body spacer with coolant recirculator

Custom machined Garolite throttle body spacer

Modified throttle body gasket

Next Level front and rear strut tower bars

Thrasher shift improver kit

Relocated IAT sensor

BackinBlack fan mod...go HERE to see details

20% tint on all windows

tinted license plate covers

Ventshade ventvisors

GTS clear headlight covers painted body color

Polished stainless steel Pontiac bumper emblem

Daytona yellow painted calipers

Custom made four part grills painted silver hammerite

Machined and polished stainless steel gauge hole insert in cubby

White vinyl overlays for DIC, headlight switch and fog switch

DEI Python 1500 alarm system with remote start

Lotek 3 pod A-pillar

Autometer Phantom boost, oil pressure and volts gauges

B&M custom shifter with reverse lockout

Farenheit 9007 Super White Xenon headlights

40 candlepower back up light bulb upgrade

Here is one of the first pics taken of this car. All that

is done here is tint and Ventshades.

Here is what the tint looks like on the front windows now. I custom cut it so it was a bit more "legal".

Mr. state trooper felt that I needed a $120 ticket to remind me that tint is illegal in VT. Go figure.

This is a shot of the GTS headlight covers on the

car. I used clear covers and custom masked them

for a blinker spot to be visible.

Here is a picture of my old CAI. I have a new type of intake since this was just a

This is a photo of the fender well intake. The tube is 4" in daimeter. It isn't that pretty to look

at but that isn't the point now is it? The filter is tucked waaaaaay up under the car. It is so

very loud when the blower whistles. I love it!!!!

The Clarion 6.4" monitor is pictured here flush

mounted in the passenger sun visor. It was a huge

pain in the ass to get this to fit but the results were

Here is the PS2 mounted in the center console of

This is one of the controllers for the PS2. I ran the

wiring up into the bottom of the console and hid the

second controller under the center pull out. Perfect fit!

The wiring for the monitor and PS2 are hidden

behind the rear passenger side panel in the back

seat. All of the components run off from a remote

trigger from the head unit and are relayed.

Here is the Rockford head unit with the water jet

cut stainless trim ring. The trim ring is high

polished to a chrome finish.

Although this picture is awful you can sort of see the

NOS switches and polished mounting plate. These

will eventually toggle the TCS from the fuse box as

well as a 50hp shot of Nitrous.

This pic shows my custom painted calipers and my super swampin tires. These tires are what put me

into the 13's. Don't ask me how but this was all I changed to drop from a 14.02 to a 13.99. I know that

isn't a lot to drop but I thought these would hurt me more than help. Who knew?

This is a shot of my exhaust tips. They are off from a Firehawk. I got them for free so I decided to

have them put on when I had the exhaust bent up. What you can't see are the Rhino performance

mufflers underneath. Although they aren't a real big race name I like these a lot and they sound

very aggressive at full throttle. Plus they are pretty inexpensive as well!

This won't be anything new for anyone who has a modified GP but here is a shot of my D.U.B. pulley

system. I am running a 3.25 pulley right now. I will use this for the steet and have a smaller D.U.B.

pulley for race use. The Gator back belt is also shown.

Here is another so-so quality pic. This is of the custom B&M shifter I put in. I made a special adapter to

fit the handle in while retaining the reverse lock out. It is a perfect fit. There was quite a bit of "fitting" to

get it to all go together well. The pic above shows the reverse lever. Unlike most ratchet style shifters

this one has to be pushed down to be shifted out of park. Not a big deal once you get used to it.

This is a cool racing pic I thought I would put in. It is my GTP schooling a modified Dakota R/T.

This pic really says it all for me. Drag strip glory. I love it!!

Shown here is some of the wild bunch. We always go race as a group. If you race with friends

then you already know how cool it is to have everybody together at the strip.

Here is a pic of one of my "secret" mods. I'm probably not the first one to come up with this but I have

never seen it anywhere else. I machined out a piece of aluminum to match the inlet of the supercharger

so the coolant would circulate into the channel in the spacer and back around into the S/C. I wanted

to avoid any chance of stagnant coolant heating things up. It may not do a thing but it sure does look cool.

No real genius here. Just a pic of the modified TB gasket. I trimmed it open to

the edges of the factory sealant lines.

Another no brainer. Here in the ZZP modified 160 Hypertech T-stat. The drilled holes in the

thermostat help to keep the engine cooler and avoid hot pockets of coolant.

This shows my modified transmission pan. I cut 1/2" tubing and welded it to the bottom of the

pan to help cool the fluid in the pan. As the air passes through the tubes heat goes with it. I also

added a drain plug. This will make it a lot easier at the next fluid change.

These pics are of the BackinBlack fan mod I did. This allows me to override the PCM and

turn on both fans on high at any time. I use it in traffic on a hot day and at the track.

This is a shot of the switch plate I used for the fan mod. The other switch is for the Performance shift.

Since I put in the new shift knob I had to move the switch somewheres so this looked as good as any.

The switches are a soft touch push on/off from Radioshack. $2.50 each.

Here is a close up shot of stock(left) rockers versus the INTENSE 1.9:1 rockers. As you can

see the seat for the pushrod has been moved quite a ways. I am pleased with them so far. I have

yet to go to the track but am planning to soon!! I hope they help...

When I moved my boost gauge from the cubby spot to the a pillar I had a big hole left in the

cubby. Being the creative master that I am :) I machined out a "plug" and machined the

GTP letters into it. This is polished stainless steel ( as are all my creations mostly). In person

it really looks bad ass!

Here are a few shots of the white vinyl overlays.

This is the Stainless steel Pontiac emblem I made. I know it's dirty! Damn bugs!!!

Like the license plate? That's what they see just before I suck 'em up.

This is what they see seconds after I spit them out.

This is kind of an overview of the current interior. Seen here is the B&M T-handle, Polished switch

plates, vinyl overlays, 3 pod pillar... you get the idea.

Just another shot of all of the gauges.

Here's the JL 12" sub and the Rockford Fosgate 200s amplifier. It hits nice and that's

all I want. For now...

Here are the Farenheit 9007 Super White Xenon headlights just before installation.

These are the ZZP Poly engine mount bushings. They really help to keep the engine from

rocking back and fourth. I was really impressed at how well it holds it all still. Oh and there is

no vibration from these. It is as smooth as ever!!

Just a shot of the mounts installed. Look cool don't they?


	Gould Engineering \| home back to photo album GTP *Go HERE for time slips* Shameless plug- If I don't build a modification myself I will only buy top quality parts from someone else. That is my policy. In the Grand Prix Performance world those parts come from only two places. ZZ Performance and INTENSE Racing. I recommend these vendors over any other. They are the top shelf. End of discussion. GENERAL INFORMATION: 1998 Pontiac Grand Prix GTP black 2 door coupe graphite cloth interior 3.8 liter engine with supercharger 240hp/280lb-ft tq (stock) MODIFICATIONS: AUDIO / VIDEO- Rockford Fosgate 8230 head unit Monster cable micro XLN 4ch. RCA cables Clarion 6.4" monitor flushed into sun visor PS2 mounted in back seat center console polished stainless steel trim rings for head unit and NOS switches JL audio 12W6 subwoofer Rockford Fosgate punch 200s amplifier PERFORMANCE- Castrol Syntec fully synthetic engine oil K&N conical airfilter (RD-1450) in a custom fenderwell mounted CAI Heat wrapped FWI tube Custom bent 3" cat back exhaust with U-bend replaced D.U.B 3.25" SC pulley INTENSE 1.9:1 Rocker arms Gatorback SC belt 4060660 Toggled TCS with a NOS saftey switch Boost Valve adjusted downward Modified transmission pan with cooling tubes, added drain plug ZZP modified 160 Hypertech T-stat ZZP Black poly engine mount bushings NGK TR6 spark plugs (two ranges colder than stock) Custom machined aluminum throttle body spacer with coolant recirculator Custom machined Garolite throttle body spacer Modified throttle body gasket Next Level front and rear strut tower bars Thrasher shift improver kit Relocated IAT sensor BackinBlack fan mod...go HERE to see details 99+ coolant bottle APPEARANCE- 20% tint on all windows tinted license plate covers Ventshade ventvisors GTS clear headlight covers painted body color removed emblems Polished stainless steel Pontiac bumper emblem Daytona yellow painted calipers Custom made four part grills painted silver hammerite Machined and polished stainless steel gauge hole insert in cubby Disabled DRL White vinyl overlays for DIC, headlight switch and fog switch OTHER- DEI Python 1500 alarm system with remote start DEI alarm flashers Lotek 3 pod A-pillar Autometer Phantom boost, oil pressure and volts gauges B&M custom shifter with reverse lockout Farenheit 9007 Super White Xenon headlights 40 candlepower back up light bulb upgrade Here is one of the first pics taken of this car. All that is done here is tint and Ventshades. Here is what the tint looks like on the front windows now. I custom cut it so it was a bit more "legal". Mr. state trooper felt that I needed a $120 ticket to remind me that tint is illegal in VT. Go figure. This is a shot of the GTS headlight covers on the car. I used clear covers and custom masked them for a blinker spot to be visible. Here is a picture of my old CAI. I have a new type of intake since this was just a temporary unit. This is a photo of the fender well intake. The tube is 4" in daimeter. It isn't that pretty to look at but that isn't the point now is it? The filter is tucked waaaaaay up under the car. It is so very loud when the blower whistles. I love it!!!! The Clarion 6.4" monitor is pictured here flush mounted in the passenger sun visor. It was a huge pain in the ass to get this to fit but the results were worth the hassle. Here is the PS2 mounted in the center console of the back seats. This is one of the controllers for the PS2. I ran the wiring up into the bottom of the console and hid the second controller under the center pull out. Perfect fit! The wiring for the monitor and PS2 are hidden behind the rear passenger side panel in the back seat. All of the components run off from a remote trigger from the head unit and are relayed. Here is the Rockford head unit with the water jet cut stainless trim ring. The trim ring is high polished to a chrome finish. Although this picture is awful you can sort of see the NOS switches and polished mounting plate. These will eventually toggle the TCS from the fuse box as well as a 50hp shot of Nitrous. This pic shows my custom painted calipers and my super swampin tires. These tires are what put me into the 13's. Don't ask me how but this was all I changed to drop from a 14.02 to a 13.99. I know that isn't a lot to drop but I thought these would hurt me more than help. Who knew? This is a shot of my exhaust tips. They are off from a Firehawk. I got them for free so I decided to have them put on when I had the exhaust bent up. What you can't see are the Rhino performance mufflers underneath. Although they aren't a real big race name I like these a lot and they sound very aggressive at full throttle. Plus they are pretty inexpensive as well! This won't be anything new for anyone who has a modified GP but here is a shot of my D.U.B. pulley system. I am running a 3.25 pulley right now. I will use this for the steet and have a smaller D.U.B. pulley for race use. The Gator back belt is also shown. Here is another so-so quality pic. This is of the custom B&M shifter I put in. I made a special adapter to fit the handle in while retaining the reverse lock out. It is a perfect fit. There was quite a bit of "fitting" to get it to all go together well. The pic above shows the reverse lever. Unlike most ratchet style shifters this one has to be pushed down to be shifted out of park. Not a big deal once you get used to it. This is a cool racing pic I thought I would put in. It is my GTP schooling a modified Dakota R/T. This pic really says it all for me. Drag strip glory. I love it!! Shown here is some of the wild bunch. We always go race as a group. If you race with friends then you already know how cool it is to have everybody together at the strip. Here is a pic of one of my "secret" mods. I'm probably not the first one to come up with this but I have never seen it anywhere else. I machined out a piece of aluminum to match the inlet of the supercharger so the coolant would circulate into the channel in the spacer and back around into the S/C. I wanted to avoid any chance of stagnant coolant heating things up. It may not do a thing but it sure does look cool. No real genius here. Just a pic of the modified TB gasket. I trimmed it open to the edges of the factory sealant lines. Another no brainer. Here in the ZZP modified 160 Hypertech T-stat. The drilled holes in the thermostat help to keep the engine cooler and avoid hot pockets of coolant. This shows my modified transmission pan. I cut 1/2" tubing and welded it to the bottom of the pan to help cool the fluid in the pan. As the air passes through the tubes heat goes with it. I also added a drain plug. This will make it a lot easier at the next fluid change. These pics are of the BackinBlack fan mod I did. This allows me to override the PCM and turn on both fans on high at any time. I use it in traffic on a hot day and at the track. This is a shot of the switch plate I used for the fan mod. The other switch is for the Performance shift. Since I put in the new shift knob I had to move the switch somewheres so this looked as good as any. The switches are a soft touch push on/off from Radioshack. $2.50 each. Here is a close up shot of stock(left) rockers versus the INTENSE 1.9:1 rockers. As you can see the seat for the pushrod has been moved quite a ways. I am pleased with them so far. I have yet to go to the track but am planning to soon!! I hope they help... When I moved my boost gauge from the cubby spot to the a pillar I had a big hole left in the cubby. Being the creative master that I am :) I machined out a "plug" and machined the GTP letters into it. This is polished stainless steel ( as are all my creations mostly). In person it really looks bad ass! Here are a few shots of the white vinyl overlays. This is the Stainless steel Pontiac emblem I made. I know it's dirty! Damn bugs!!! Like the license plate? That's what they see just before I suck 'em up. This is what they see seconds after I spit them out. This is kind of an overview of the current interior. Seen here is the B&M T-handle, Polished switch plates, vinyl overlays, 3 pod pillar... you get the idea. Just another shot of all of the gauges. Here's the JL 12" sub and the Rockford Fosgate 200s amplifier. It hits nice and that's all I want. For now... Here are the Farenheit 9007 Super White Xenon headlights just before installation. These are the ZZP Poly engine mount bushings. They really help to keep the engine from rocking back and fourth. I was really impressed at how well it holds it all still. Oh and there is no vibration from these. It is as smooth as ever!! Just a shot of the mounts installed. Look cool don't they?