Bonneville GXP/ Northstar Powered Cars Discuss your Bonneville GXP and/or any other Northstar powered Olds or Cadillac... Including the 3.5L Twin Cam V6 (Short Star ) 4.0L and 4.6L Northstar V8's. Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Why Only 275 Horsepower?

Thread Tools
 
Search this Thread
 
Old 05-26-2004, 11:42 PM
  #11  
Senior Member
True Car Nut
 
OLBlueEyesBonne's Avatar
 
Join Date: Dec 2002
Location: Sauk Centre, MN
Posts: 5,459
Likes: 0
Received 0 Likes on 0 Posts
OLBlueEyesBonne is on a distinguished road
Default

Originally Posted by BadSSEi
I just brought home a new GPX and I have two comments:

1) Damn, is this thing SLOW!

2) Other than the above problem, this is one of the nicest cars I've ever ridden in, driven or seen.

Maybe I'll have to focus a little on the first issue...

Scott
Congrat'* Scott. Can we expect to see you at Bonnevillefest?
BTW, what color and any clues on what the mods list will be looking like?
Probably hard to guess the mods yet, until you get to know the N* like the L67.
Anyhow, be sure to keep us updated on what our speed-demon GXP is progressing.
Old 05-26-2004, 11:48 PM
  #12  
Senior Member
Expert Gearhead
 
Jim W's Avatar
 
Join Date: Dec 2002
Location: Mississauga, Ontario
Posts: 20,893
Likes: 0
Received 1 Like on 1 Post
Jim W is on a distinguished road
Default

Scott....feel free to work on the Northstar, dont forget the 4.0L in your plans
Old 05-27-2004, 08:27 AM
  #13  
Senior Member
True Car Nut
 
Rogue's Avatar
 
Join Date: Jul 2003
Location: Westerville, Ohio 2000 Black SSEi
Posts: 6,127
Likes: 0
Received 1 Like on 1 Post
Rogue is on a distinguished road
Default

Originally Posted by BadSSEi
I just brought home a new GPX and I have two comments:

1) Damn, is this thing SLOW!

2) Other than the above problem, this is one of the nicest cars I've ever ridden in, driven or seen.

Maybe I'll have to focus a little on the first issue...

Scott
It'* going to look funny having that 04 Bonneville GXP 15 @ 95 in your sig
Old 05-27-2004, 04:12 PM
  #14  
Senior Member
Posts like a Corvette
 
Foghorn's Avatar
 
Join Date: Jan 2004
Location: Montréal, QC
Posts: 1,374
Likes: 0
Received 0 Likes on 0 Posts
Foghorn is on a distinguished road
Default

Originally Posted by BadSSEi
I just brought home a new GPX and I have two comments:

1) Damn, is this thing SLOW!

2) Other than the above problem, this is one of the nicest cars I've ever ridden in, driven or seen.

Maybe I'll have to focus a little on the first issue...

Scott
I agree with you on #2 - the Bonneville GXP is a very sharp looking car...the nicest in Pontiac'* lineup IMO.

Maybe you should forget #1 Scott and figure out where the cruise control is

Cheers,
Old 05-27-2004, 05:01 PM
  #15  
Senior Member
True Car Nut
 
SSsuperchargedEi's Avatar
 
Join Date: Oct 2003
Location: Pittsburgh, Pa.
Posts: 7,551
Likes: 0
Received 0 Likes on 0 Posts
SSsuperchargedEi is on a distinguished road
Default


Originally Posted by Rogue
It'* going to look funny having that 04 Bonneville GXP 15 @ 95 in your sig
Old 05-27-2004, 07:20 PM
  #16  
Senior Member
True Car Nut
 
macho_mike21's Avatar
 
Join Date: Jan 2003
Location: Bloomington-Normal, IL 1997 SE
Posts: 3,734
Likes: 0
Received 0 Likes on 0 Posts
macho_mike21 is on a distinguished road
Default

i guess going from your SSei to almost anything would be slow. I bet to you my car would feel like its barely moving all the time
Old 05-27-2004, 10:54 PM
  #17  
Senior Member
Certified Car Nut
 
BonneMeMN's Avatar
 
Join Date: Jun 2003
Posts: 15,928
Likes: 0
Received 1 Like on 1 Post
BonneMeMN is on a distinguished road
Default

BadGXP... Hrm, you sure you wanna race out a nice car like that? j/k....

You better be at the national meet in july, and you better have that sucker running 12'*

Other then that, congrats, you've earned it working hard for the 3800 community, and now you have a whole new bag of worms...
Old 05-27-2004, 10:59 PM
  #18  
Senior Member
True Car Nut
 
PontiacDad's Avatar
 
Join Date: Jun 2003
Location: Purgatory
Posts: 6,313
Likes: 0
Received 0 Likes on 0 Posts
PontiacDad is on a distinguished road
Default

Getting back to the differences in the two motors.

After a bit of digging the cylinder heads are diff. the caddy gets 2 (1.425in) intake valves same as the gxp but the caddy gets 2 (1.42 in) exhaust valves while the gxp only gets 2 (1.102 in) exhaust valves.
Also cadilac has a cam shaft posistion actuator system that allows the ecm to adjust cam shaft timming of all 4 cams while the engine is running, not the gxp.

I would think these two facts might add up to the 25hp drop in the gxp?
Old 05-28-2004, 02:56 AM
  #19  
Senior Member
Certified GM nut
 
BonneAlien's Avatar
 
Join Date: Sep 2002
Posts: 2,204
Likes: 0
Received 0 Likes on 0 Posts
BonneAlien is on a distinguished road
Default

pics of this GXP?? i'll believe it when i see it!
Old 05-29-2004, 12:04 PM
  #20  
Senior Member
Posts like a Northstar
 
mikey's Avatar
 
Join Date: Nov 2003
Posts: 560
Likes: 0
Received 0 Likes on 0 Posts
mikey is on a distinguished road
Default

Originally Posted by PontiacDad
Getting back to the differences in the two motors.

After a bit of digging the cylinder heads are diff. the caddy gets 2 (1.425in) intake valves same as the gxp but the caddy gets 2 (1.42 in) exhaust valves while the gxp only gets 2 (1.102 in) exhaust valves.
Also cadilac has a cam shaft posistion actuator system that allows the ecm to adjust cam shaft timming of all 4 cams while the engine is running, not the gxp.

I would think these two facts might add up to the 25hp drop in the gxp?
the 300hp version uses bigger cams also. its the SLS (also gxp now) vs the STS motor


Quick Reply: Why Only 275 Horsepower?



All times are GMT -4. The time now is 12:37 PM.