How to Add Horsepower to the 2004 GXP - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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.

Reply
 
 
 
Thread Tools Search this Thread
Old 05-30-2004, 08:54 PM   #1
Executed
Thread Starter
 
Join Date: Aug 2002
Location: Purgatory
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
BadSSEi is on a distinguished road
Default How to Add Horsepower to the 2004 GXP

I'd like to suggest that we use this thread as a blackboard for some of our ideas, and I'll keep updating this first post periodically.

1) K & N Air Filter - part number 33-2063-1. The folks over at Edmunds.com say this is an exact match and will fit our cars. I haven't confirmed this yet, but plan to order one soon.

2) PCM - I don't know how much opportunity there is here, but we'll start working on this one next week, and we should have PCM'* available by the end of June.

3)

4)

5)

OK, let'* hear everyone'* best ideas, so we can start working on this...

Scott
BadSSEi is offline   Reply With Quote
Old 05-30-2004, 09:49 PM   #2
Sol
Senior Member
True Car Nut
 
Join Date: Sep 2002
Posts: 8,909
Thanks: 0
Thanked 0 Times in 0 Posts
Sol is on a distinguished road
Default

I'd say throw on a nice exhaust. That V8 has to breathe.
Sol is offline   Reply With Quote
Old 05-30-2004, 10:31 PM   #3
Senior Member
Certified Car Nut
 
Join Date: Jun 2003
Posts: 15,928
Thanks: 0
Thanked 0 Times in 0 Posts
BonneMeMN is on a distinguished road
Default

Headers would be good, but i think some generic northstar ones should work right?

I'm sure a new cam set would be nice, and keeping the engine cooler will benefit a lot.

Turbo? I know Northstars have been made into 1000 hp beasts....
BonneMeMN is offline   Reply With Quote
Old 05-31-2004, 12:51 AM   #4
Junior Member
Posts like a Ricer Type-R
 
Join Date: May 2004
Posts: 22
Thanks: 0
Thanked 0 Times in 0 Posts
GXP Gauger is on a distinguished road
Default

Well Scott,

You have had your car less than a week and you allready want to make it go faster?
although 300/300 would be nice. (bhp/torque)

John
GXP Gauger is offline   Reply With Quote
Old 05-31-2004, 01:06 AM   #5
Senior Member
True Car Nut
 
Join Date: Feb 2003
Location: Bloomington-Normal, IL 1997 SE
Posts: 3,734
Thanks: 0
Thanked 0 Times in 0 Posts
macho_mike21 is on a distinguished road
Default

FWI maybe? Headers/ better intake manifolds (they arnt plastic on the N*). bigger TB, IDK if you have room for a turbo in there.
macho_mike21 is offline   Reply With Quote
Old 05-31-2004, 01:07 AM   #6
Senior Member
True Car Nut
 
Join Date: Feb 2003
Location: Bloomington-Normal, IL 1997 SE
Posts: 3,734
Thanks: 0
Thanked 0 Times in 0 Posts
macho_mike21 is on a distinguished road
Default

check this site out, looks like you might have some competition

http://www.chrfab.com/
macho_mike21 is offline   Reply With Quote
Old 05-31-2004, 11:26 AM   #7
Senior Member
Expert Gearhead
 
Join Date: Dec 2002
Location: Mississauga, Ontario
Posts: 20,892
Thanks: 0
Thanked 1 Time in 1 Post
Jim W is on a distinguished road
Default

The Northstar engine has a plastic upper intake manifold...at least mine does

FWI, exhaust, headers, enlarged TB, rockers, chip...turbo
Jim W is offline   Reply With Quote
Old 05-31-2004, 01:44 PM   #8
Senior Member
True Car Nut
 
Join Date: Oct 2003
Location: Pittsburgh, Pa.
Posts: 7,551
Thanks: 0
Thanked 0 Times in 0 Posts
SSsuperchargedEi is on a distinguished road
Default

ls6 crate
SSsuperchargedEi is offline   Reply With Quote
Old 05-31-2004, 02:12 PM   #9
Sol
Senior Member
True Car Nut
 
Join Date: Sep 2002
Posts: 8,909
Thanks: 0
Thanked 0 Times in 0 Posts
Sol is on a distinguished road
Default

In all practicality, a turbo is a bit too much. If going for insane speed it would be fine. For starters, a nice intake, computer chip, rockers, and headers/exhaust package would be very good. And then go from there to see how the car responds to that.
Sol is offline   Reply With Quote
Old 05-31-2004, 02:13 PM   #10
Senior Member
Posts like a Northstar
 
Join Date: Nov 2003
Posts: 560
Thanks: 0
Thanked 0 Times in 0 Posts
mikey is on a distinguished road
Default

rockers on a dohc jim?

badssei, XMS has been working on a N* supercharger for YEARS, last i heard like 9 months ago they just needed a chip and it should have been out by now. maybe you could contact them, if they abandoned the project, perhaps theyd sell there info/project or somthing, it offer a huge start instead of giong in somewhat blind

also, you'd make alot more money if you made products like headers etc etc that carried over to the cadillacs, and me and jim would be happier if they went to aurora'* too . there are plenty of would be buyers at cadillacforums.com, and the aurora group at edmunds town hall
mikey is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Add another GXP to the site Black05GXP Introductions for new members 9 07-21-2008 08:41 AM
Add another GXP to the forum... LiquidGXP Introductions for new members 7 03-27-2005 03:21 PM
GXP Horsepower Update sahensley Bonneville GXP/ Northstar Powered Cars 20 11-05-2004 07:31 AM
Add a 2004 Grand Prix to my kill sheet.... Merlin 91/97 General GM Chat 25 01-02-2004 06:39 PM
OMG: 2004 Bonneville GXP will OWN skza General GM Chat 52 11-26-2002 07:42 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 09:06 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.