2004 Pontiac Grand Prix GTP
- Thread starter turbo96
- Start date
Trump
New member
Fivefingerdeathpunc
Nice Picture !
In Response to your listing.
Back in the 60s and 70's I was in the drag racing and built a few cars and obtained a degree in Automotive, I have worked on cars for over 50 years, I am sure you have done the same? I feel I know cars and through College and teaching automotive I feel I have a good understanding of automotive and also working in the Automotive filed for many years. I retired back in 2002.
OK we got that part out of the way. Recommended fuel for performance is one thing. If you try and RACE a car and push it then yeah the higher octane fuel is needed. If you drive like an old lady and do not use the power, " Peddle to the Metal type " then you can run the 87 octane fuel. I had my 2004 Pontiac Grand Prix GTP Special Edition ( as seen below ) at the GM dealership and they even showed me in the maintenance manual where you CAN run 87 Octane in the car, more FOR MORE performance the Preferred use of higher octane is REQUIRED. I run a 2001 Pontiac Bonneville SSEI, yeah Supercharged and I run 87 Octane in it and have for years.
NO, I understand that the two motors , the one in the Grand Prix and the one in the Bonneville are not the same motors, even though they were both Supercharged 3800 motors. The 2004 Grand Prix Special Edition has the SFI, where the old 2001 Bonneville has the PFI or BFI as some called it. Not sure if you know the difference ?
Your older 2000 Grand Prix GTP, may have the same old engine as the 2001 Bonneville SSEi which is NOT the same as motor the 2004 Pontiac Grand Prix Special Edition GTP engine. I know as I have had both and I run the 2001 Bonneville SSEI every day on the lower octane with no issues
I got my 2004 Grand Prix GTP Special Edition with 14,240 miles on it and drove it until about 8 months ago and had 71,640 miles on it and had NO issues running 87 obtain fuel in it most of the time and got about 31 mpg on a trip. I sold the car in order to get my wife a new car, it ran perfect the day I sold it. NO Pinging, no issues at all. If you want performance and like to jackrabbit starts and stuff like then then yeah run the higher obtain fuel. KEEP YOUR FOOT OFF THE GAS.
Nice Picture !
In Response to your listing.
Back in the 60s and 70's I was in the drag racing and built a few cars and obtained a degree in Automotive, I have worked on cars for over 50 years, I am sure you have done the same? I feel I know cars and through College and teaching automotive I feel I have a good understanding of automotive and also working in the Automotive filed for many years. I retired back in 2002.
OK we got that part out of the way. Recommended fuel for performance is one thing. If you try and RACE a car and push it then yeah the higher octane fuel is needed. If you drive like an old lady and do not use the power, " Peddle to the Metal type " then you can run the 87 octane fuel. I had my 2004 Pontiac Grand Prix GTP Special Edition ( as seen below ) at the GM dealership and they even showed me in the maintenance manual where you CAN run 87 Octane in the car, more FOR MORE performance the Preferred use of higher octane is REQUIRED. I run a 2001 Pontiac Bonneville SSEI, yeah Supercharged and I run 87 Octane in it and have for years.
NO, I understand that the two motors , the one in the Grand Prix and the one in the Bonneville are not the same motors, even though they were both Supercharged 3800 motors. The 2004 Grand Prix Special Edition has the SFI, where the old 2001 Bonneville has the PFI or BFI as some called it. Not sure if you know the difference ?
Your older 2000 Grand Prix GTP, may have the same old engine as the 2001 Bonneville SSEi which is NOT the same as motor the 2004 Pontiac Grand Prix Special Edition GTP engine. I know as I have had both and I run the 2001 Bonneville SSEI every day on the lower octane with no issues
I got my 2004 Grand Prix GTP Special Edition with 14,240 miles on it and drove it until about 8 months ago and had 71,640 miles on it and had NO issues running 87 obtain fuel in it most of the time and got about 31 mpg on a trip. I sold the car in order to get my wife a new car, it ran perfect the day I sold it. NO Pinging, no issues at all. If you want performance and like to jackrabbit starts and stuff like then then yeah run the higher obtain fuel. KEEP YOUR FOOT OFF THE GAS.
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turbo96
New member
☺ Nice car!!! Wow I didn't mean to offend anyone ever, but tyvm for your input!Fivefingerdeathpunc
Nice Picture !
In Response to your snappy listing.
Back in the 60s and 70's I was in the drag racing and built a few cars and obtained a degree in Automotive, I am sure you did the same? I have worked on cars for over 50 years, I am sure you have done the same? I feel I know cars and through Collage and teaching automotive I feel I have a good understanding of automotive and also working in the filed for many years.
OK we got that part out of the way. Recommended fuel for performance is one thing. If you try and RACE a car and push it then yeah the higher octane fuel is needed. If you drive like an old lady and do not use the power, " peddle to the Metal type " then you can run the 87 octane fuel. I had my 2004 Pontiac Grand Prix GTP Special Edition at the GM dealership and they even showed me in the maintenance manual where you CAN run 87 Octane in the car, more performance and Preferred use of higher obtain. For running like at high performance the higher octane is needed. I run a 2001 Pontiac Bonneville SSEI, yeah Supercharged and I run 87 Octane in it and have for years and it also says in the manual that regular fuel can be run in the engine. NO, I understand that the two motors , the one in the Grand Prix and the one in the Bonneville were not the same motors also, even though they were both Supercharged 3800 motors.
If you do have the older 2000 Grand Prix GTP, it may have the same old engine as the 2001 Bonneville SSEi which is NOT the same as the 2004 Pontiac Grand Prix Special Edition GTP engine.
I got my 2004 Grand Prix GTP Special Edition with 14,240 miles on it and drove it until about 8 months ago and had 71,640 miles on it and had NO issues running 87 obtain fuel in it most of the time and got about 31 mpg on a trip. NO Pinging, no issues at all. If you want performance and like to jackrabbit starts and stuff like then then yeah run the higher obtain fuel. KEEP YOUR FOOT OFF THE GAS.
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spazzz
New member
Those wheels are exactly in the ballpark.
Yep our hubs are a 70.3 bore, so get some hubcentric rings with the new wheels when you order. most retailers give them with the order, free.
The tires are probably what I would try if I needed all seasons. I have separate winter and summer combos. My summers are Nankang Ultrasports
Something about the either/or wheels I don't like. I wouldn't want extra holes when not needed. They probably would sell quicker if you ever sold them though.
Do some looking for awhile and be sure you get what you want. The specs you picked are spot on. But remember to stay away from chrome.
Don't do black either.....but get what you like anyway.
I like the hypersilver personally. The GUZ picked out some super nice looking wheels recently..they have a nice concave look to them.
Trump
I hear where you are coming from and I think( or would like to think) that everyone with a S/C knows that 87 with a feather approach is cool. But a rat-a-tat -tat on an onramp or having to kick and move for a merge or bust out of the way to avoid an accident might not be a good thing. A few cents is a little insurance.
Yep our hubs are a 70.3 bore, so get some hubcentric rings with the new wheels when you order. most retailers give them with the order, free.
The tires are probably what I would try if I needed all seasons. I have separate winter and summer combos. My summers are Nankang Ultrasports
Something about the either/or wheels I don't like. I wouldn't want extra holes when not needed. They probably would sell quicker if you ever sold them though.
Do some looking for awhile and be sure you get what you want. The specs you picked are spot on. But remember to stay away from chrome.
Don't do black either.....but get what you like anyway.
I like the hypersilver personally. The GUZ picked out some super nice looking wheels recently..they have a nice concave look to them.
Trump
I hear where you are coming from and I think( or would like to think) that everyone with a S/C knows that 87 with a feather approach is cool. But a rat-a-tat -tat on an onramp or having to kick and move for a merge or bust out of the way to avoid an accident might not be a good thing. A few cents is a little insurance.
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Fivefingerdeathpunch
New member
Um, how are the 2000 and 2004 motors different??
They both are SFI's. They both have fuel injectors above the intake valves, they both spray the fuel at the same times when needed. Another way to call it is MPFI, because it's multiple ports than inject fuel upon the intake stroke of the motor. These arent a "batched", in which fuel is injected to the cylinders in groups, without precise synchronization to any particular cylinder's intake stroke.
I'd also rather not argue the 87 to 91 octane debate anyone here. Put it this way, why would you drive a car that can be "quick" and fun and has a good motor in it but decide to drive like a grandpa everyday?? That is just a complete waste of a car, and WHAT IF you had to or needed to floor it, now you are just at a greater danger for failure because you are being cheap and not running the recommend gasoline for the motor.
As for tires, nankang, milestar are all cheaper end tires. Good for summer use, likely not something you'd ever want to run year round in the winter.
They both are SFI's. They both have fuel injectors above the intake valves, they both spray the fuel at the same times when needed. Another way to call it is MPFI, because it's multiple ports than inject fuel upon the intake stroke of the motor. These arent a "batched", in which fuel is injected to the cylinders in groups, without precise synchronization to any particular cylinder's intake stroke.
I'd also rather not argue the 87 to 91 octane debate anyone here. Put it this way, why would you drive a car that can be "quick" and fun and has a good motor in it but decide to drive like a grandpa everyday?? That is just a complete waste of a car, and WHAT IF you had to or needed to floor it, now you are just at a greater danger for failure because you are being cheap and not running the recommend gasoline for the motor.
As for tires, nankang, milestar are all cheaper end tires. Good for summer use, likely not something you'd ever want to run year round in the winter.
turbo96
New member
Tim were you speaking of Fivefingerdeathpunch? If so, I will find someone else to speak to. Thanks!
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spazzz
New member
We all are fairly blunt here....some more than others. We are here to help and sometimes things are said in a way that sounds brutal.....but then again the truth hurts sometime.
His thoughts on the tires are really spot on. If you drive in snow more than a few miles a day you have to move up to something that cost more.
Traction is key and cheaper tires just don't stay soft enough in cold to bust thru the snow, let alone let you steer around corners.
My Nankang ultrasport ll have a M+S rating but I wouldn't dream of using them that way.
I put them on before the last snowfall and could barely make it up the hill around the corner in 2 inches of snow.
My General Altimax Artics are the $hit in snow, but then again they are snow tires. If I was doing one tire I would spring for some Continentals because I have driven them on my sisters Subaru and they work.
I did say the Nankang AS tires would be OK but really it all depends on what kind of crap you encounter during winter in SD. If you have kids, good tires are mandatory.
And about that bra thing broski....I still think the car would be better off without it
turbo96
New member
☺
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spazzz
New member
You want to stick with 245/45/18 they are closest to stock diameter.....so your speedo reads correctly.
they also look and work the best.
The 40 is the side wall and would be your choice if you were buying 19" wheels.
The tires are more expensive.....yeah....but you will get a better tire......you already know
they also look and work the best.
The 40 is the side wall and would be your choice if you were buying 19" wheels.
The tires are more expensive.....yeah....but you will get a better tire......you already know
turbo96
New member
I'm not sure how this is happening :...
can you change the thread title back to "2004 Pontiac Grand Prix GTP Supercharged 3.8L V6" please?
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ADrugDealer
Schooner Tuner
Re: 04 GP GTP - I got lose with red spray paint and use 87 octane - I'm anal with exc
Anyone who says they ran 87 in a GTP and "had no pinging" is an absolute moron and completely wrong. Did you scan the car? No... Well there's why. A GTP on 91 will knock from the factory, especially on 87
Sent from my VS986 using Tapatalk
Anyone who says they ran 87 in a GTP and "had no pinging" is an absolute moron and completely wrong. Did you scan the car? No... Well there's why. A GTP on 91 will knock from the factory, especially on 87
Sent from my VS986 using Tapatalk
Trump
New member
WOW ! Sorry, I mistakenly stated the MFI and SFI incorrectly, it was another motor situation I apologize.
OK the 3800 Series II and Series III,
Above was from a forum that covered the 3800 Series II and Series III motors. All I can say for fact is that I seen myself a huge difference in the series II and Series III motors. The Series III seemed to have a lot more power and with a high performance air filter on both engines the series III motor just ran a lot better. The PCM on the Series III even seemed to shift a lot better and all in all I feel the Series III motor was better in my opinion.
I agree, no need to argue over octane, that was NOT proper for me to be that harsh, I apologize again. BUT, I never had any issues on a acceleration when needed on the 2004 GTP, it would brake the tires loose easily and I still got over 25 MPG around town, over 30 MPG on the highway " on low octane fuel". Guess the
Good day !
OK the 3800 Series II and Series III,
Above was from a forum that covered the 3800 Series II and Series III motors. All I can say for fact is that I seen myself a huge difference in the series II and Series III motors. The Series III seemed to have a lot more power and with a high performance air filter on both engines the series III motor just ran a lot better. The PCM on the Series III even seemed to shift a lot better and all in all I feel the Series III motor was better in my opinion.
I agree, no need to argue over octane, that was NOT proper for me to be that harsh, I apologize again. BUT, I never had any issues on a acceleration when needed on the 2004 GTP, it would brake the tires loose easily and I still got over 25 MPG around town, over 30 MPG on the highway " on low octane fuel". Guess the
in my case worked out, but sure would NOT suggest it for the normal younger person.
Good day !