91GranSport Posted June 8, 2003 Report Share Posted June 8, 2003 I was able to see the new '04 Grand Prix. Personally I don't like the looks too much but that's another story to be left in a different thread. Anyways, it said it was powered by the "all-new 3800 Series III". Now what is a Series III and how does it differ from a Series II? I know there are significant differences between a 3800 Series II and a 3800 TPI, but what changes did GM make to the 3800 Series II to make it a "Series III"? Quote Link to comment Share on other sites More sharing options...
RacerX Posted June 8, 2003 Report Share Posted June 8, 2003 I'm not really up on all the little changes, but I know the 3800 Series III has electronic throttle control. The supercharged version also has an improved supercharger, and is rated 20 hp higher than the old one. The n/a is still rated the same. Quote Link to comment Share on other sites More sharing options...
GPRACER Posted June 8, 2003 Report Share Posted June 8, 2003 The supercharged series III is rated at 270hp, the series II was 240 Quote Link to comment Share on other sites More sharing options...
RacerX Posted June 8, 2003 Report Share Posted June 8, 2003 The supercharged series III is rated at 270hp, the series II was 240 http://pontiac.com/grandprix/specs_engines.jsp Quote Link to comment Share on other sites More sharing options...
Brian P Posted June 9, 2003 Report Share Posted June 9, 2003 Different plastic cover, different supercharger supposedly, and the throttle control. Gain 20hp, 0 torque Quote Link to comment Share on other sites More sharing options...
GrandPrix34 Posted June 9, 2003 Report Share Posted June 9, 2003 i dont get it!!!! the Series II WITH a supercharger AND 8 psi only produced 240....40hp above stock....wat gives?? i know if you were to hook up (after some fabrications) the same supercharger and same boost level, the 3.4DOHC would get better gains... by the way, not trying to start a flame war agains the 3800 or get into the whole Wats better engine debate! Quote Link to comment Share on other sites More sharing options...
Brian P Posted June 9, 2003 Report Share Posted June 9, 2003 i dont get it!!!! the Series II WITH a supercharger AND 8 psi only produced 240....40hp above stock....wat gives?? i know if you were to hook up (after some fabrications) the same supercharger and same boost level, the 3.4DOHC would get better gains... by the way, not trying to start a flame war agains the 3800 or get into the whole Wats better engine debate! The DOHC and even 60 degree V6 would show better gains with a supercharger. The 3800 has much smaller intake and exhaust valves, and requires balance shafts since it's a 90 degree configuration. Also ever take a look at the true "harmonic balancer" on any of them? It's like a damn spare tire! Quote Link to comment Share on other sites More sharing options...
Brian P Posted June 9, 2003 Report Share Posted June 9, 2003 Sources: 2.8/3.1: DOHC: 3.8: Quote Link to comment Share on other sites More sharing options...
GnatGoSplat Posted June 9, 2003 Report Share Posted June 9, 2003 The only notable difference is the more efficient blower. Same boost pressure, but more efficient. Quote Link to comment Share on other sites More sharing options...
deafmetal Posted June 9, 2003 Report Share Posted June 9, 2003 Hmmm :read: So I'm thinkin we could mount this new fandangled blower on our existing L67's.... Sounds good to me!! Pisses me off this stuff and the new Monte SS finally S/C, comes out after I tricked the piss out of my Lumina because this shit didn't exist at the time...lol Quote Link to comment Share on other sites More sharing options...
GPRACER Posted June 10, 2003 Report Share Posted June 10, 2003 The supercharged series III is rated at 270hp, the series II was 240 http://pontiac.com/grandprix/specs_engines.jsp May sound strange but I did a PDI on an 04 GP, and the window sticker said 270hp?? there is also this variant http://www.pontiac.com/concept/show_gxp_popup.jsp?imageNumber=1 Quote Link to comment Share on other sites More sharing options...
hazmatic Posted June 10, 2003 Report Share Posted June 10, 2003 what engine is in the 04 gp g-force Quote Link to comment Share on other sites More sharing options...
Brian P Posted June 10, 2003 Report Share Posted June 10, 2003 The supercharged series III is rated at 270hp, the series II was 240 http://pontiac.com/grandprix/specs_engines.jsp May sound strange but I did a PDI on an 04 GP, and the window sticker said 270hp?? there is also this variant http://www.pontiac.com/concept/show_gxp_popup.jsp?imageNumber=1 wow that looks much better without those traffic light sized foglights! Quote Link to comment Share on other sites More sharing options...
RacerX Posted June 10, 2003 Report Share Posted June 10, 2003 The supercharged series III is rated at 270hp, the series II was 240 http://pontiac.com/grandprix/specs_engines.jsp May sound strange but I did a PDI on an 04 GP, and the window sticker said 270hp?? there is also this variant http://www.pontiac.com/concept/show_gxp_popup.jsp?imageNumber=1 Looks like the GXP line-up has some nice power. I figured you must have seen the 270 hp somewhere, that's why I posted the link where I got my information (just for reference). Quote Link to comment Share on other sites More sharing options...
Redfox340 Posted June 11, 2003 Report Share Posted June 11, 2003 what engine is in the 04 gp g-force Same as the 2003 Grand Prix GTP: 3.8 Liter Series II V6 - however power increased to 280hp + 280ft/lbs torque. Nothing new, just more innovation and efficency. I dont get it!!!! the Series II WITH a supercharger AND 8 psi only produced 240....40hp above stock....wat gives?? i know if you were to hook up (after some fabrications) the same supercharger and same boost level, the 3.4DOHC would get better gains... by the way, not trying to start a flame war agains the 3800 or get into the whole Wats better engine debate! Since the Federal Government needs to have cars leave the showroom floor with a certain standard fuel economy, that's the most they could do at that time with the Series II. The Series III keeps the same MPG econ but engineers were able to boost the power without killing gas mileage. Once a new car has sold though, aftermarket parts are there to tweak it out as much as you like... that's the answer I recieved from a respected GM spokesperson in town. Think about it, you can suck all the gas you like, but it's after the US puts a stamp on it that says it meets a certain fuel econ status. - RedFox340 Quote Link to comment Share on other sites More sharing options...
ismellrealbad Posted June 11, 2003 Report Share Posted June 11, 2003 now they just need to make the grille not make faces at you. and i thought the reason they had the GTp make only 40HP more was cuz the tranny wouldnt handle much more power? cant you just crank up the boost? what the hells changed in these trannies that they hold 270hp? or is this just bs i heard and they actually can hold their own for a FWD auto Quote Link to comment Share on other sites More sharing options...
SmokesGTP Posted June 11, 2003 Report Share Posted June 11, 2003 Wow it looks like a totally different car without the large fogs. Your right Brian it looks much, much better. Quote Link to comment Share on other sites More sharing options...
RacerX Posted June 11, 2003 Report Share Posted June 11, 2003 now they just need to make the grille not make faces at you. and i thought the reason they had the GTp make only 40HP more was cuz the tranny wouldnt handle much more power? cant you just crank up the boost? what the hells changed in these trannies that they hold 270hp? or is this just bs i heard and they actually can hold their own for a FWD auto Transmissions are torque rated. Note that the peak torque rating of the engine hasn't changed, just the horsepower. Quote Link to comment Share on other sites More sharing options...
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