Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

Twin-Charged Bonneville: UPDATE 08-2011

Thread Tools
 
Search this Thread
 
Old Sep 2, 2011 | 08:11 AM
  #21  
BillBoost37's Avatar
DINOSAURUS BOOSTUS

Expert Gearhead
 
Joined: Mar 2005
Posts: 41,391
Likes: 30
From: Enfield, CT
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

Jeff...that'* awesome.
Reply
Old Sep 2, 2011 | 09:41 PM
  #22  
pontiacjeff's Avatar
Thread Starter
Senior Member
Posts like a Turbo
 
Joined: Jan 2005
Posts: 368
Likes: 0
From: Atlanta, GA. USA
pontiacjeff is on a distinguished road
Default

Originally Posted by radomirthegreat
Jeff, your Bonneville has always been one of my favorites! I can only wish for 380 WHP with a cammed 3800, but you're doing 425 with a heavier duty trans and with a generally stock longblock + a turbo. Keep on turboing!
Thanks! I need a new set of plugs then I'll go back to the track and turn it up. Driving the car every day has opened up the plug gap enough that it was blowing out the spark. Seriously, 485whp should put me in the mid-11s. I ran my actual track numbers in the Wallace Racing calculators

http://wallaceracing.com/Calculators.htm

My best MPH so far is 116mph = 457whp, which is exactly on the money! On 18psi that same day on the dyno it made 450whp. I was running 18psi all weekend at the Pontiac Nats. With a new set of plugs and some race gas and ice, it should be 500+whp on 21-22psi. That would put me 11.30s-11.50s at 125-ish. (COUGH COUGH!! <dailydriver> COUGH COUGH!!)
Reply
Old Sep 10, 2011 | 08:38 AM
  #23  
pontiacjeff's Avatar
Thread Starter
Senior Member
Posts like a Turbo
 
Joined: Jan 2005
Posts: 368
Likes: 0
From: Atlanta, GA. USA
pontiacjeff is on a distinguished road
Default

Ran it through the ringer last night! 11.98!!!! with a best 118mph. I only made two runs, but accomplishedwhat I went there to do! The first run, I red-lighted and slept on the tree, the clock was ticking and I was still sitting there waiting for some reason. I rolled thru the light on the foot brake trying to build boost. But when I saw the red, I just held it instead of going! HAHA! It went 12.60, bit at the 118mph. The 11.98 was 114.5 for some reason. Not sure why the mph was down. I'll post the timeslip later.
Reply
Old Sep 10, 2011 | 09:20 AM
  #24  
Danthurs's Avatar
Retired Senior Admin

Expert Gearhead
 
Joined: May 2006
Posts: 29,661
Likes: 43
From: Sheboygan Wisconsin
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

Congrats, that is one fast Bonneville.
Reply
Old Sep 10, 2011 | 09:24 AM
  #25  
wakefieldl's Avatar
Senior Member
Certified GM nut
 
Joined: Dec 2005
Posts: 1,916
Likes: 0
From: dekalb illinois
wakefieldl is on a distinguished road
Default

11.98...holy ****

thats a damn fast 96-99!! congrats!
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
The11bradleys
Buick
9
Aug 28, 2014 09:16 PM
pontiacjeff
Performance, Brainstorming & Tuning
55
Feb 24, 2010 11:32 PM
pontiacjeff
Performance, Brainstorming & Tuning
10
Aug 23, 2009 10:45 PM
pontiacjeff
General GM Chat
41
Jan 5, 2008 12:11 PM
marcus18
Forced Induction
34
Sep 4, 2003 11:14 PM




All times are GMT -4. The time now is 06:02 PM.