Love my GXP,but it needs more HP - Page 2 - 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.

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Old 07-09-2004, 08:27 AM   #11
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I did not know about the supercharger and do not know where I would find room,but it sounds great!The color is Graystone Metallic.Ihave owned nothing but Pontias'* for 30 years,and I think this car is one of the best I have owned! Only time will tell.Thanks to all for your reply'*.Doug
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Originally Posted by ssesc93
I try How true is that rumor for the Northstar supercharger? What color is your GXP 04GXP?
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Old 07-09-2004, 10:43 AM   #12
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I wouldn't be surprised if the TB was different than 72mm, as it'* 'fly by wire'. This means it'* at least a different TB than the rest of the Northstar clan. Not necessarily bigger, but it has to be different to be servo driven rather than cable.

It'd be nice to have one of our GXP'* meausre this for us HINT HINT.

Or Scott.
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Old 07-09-2004, 11:54 PM   #13
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stock tb ranges from 74-76, only the VVT northstars got the 80mm

whats the elevation? you should be in the mid 14'*...but with only 780 miles, thats WAY to early to be racing, give it 5,000 and ill bet it runs stronger, and even better yet at 20k
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Old 07-17-2004, 04:24 PM   #14
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yeah man.. baby that car
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