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Old 10-12-2009, 09:34 PM   #31
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Ya, get the fuel trims set and move on from there.
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Old 12-04-2009, 12:03 AM   #32
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Northstar TB installed 11-25-09. Dyno'd last night, picked up 20whp, same boost, but richer and less timing, only 11.5deg vs 14deg previously. It moved up to the next row in the timing table I guess. The fuel trim is now +10% and running about 11.2:1 a/f, where it was only +1% and 11.7:1 with the stock t.b. I need to tune it again! With the numbers back where they were, it'll be over 400whp easy.

The throttle response it nothing short of amazing! It rev'* quicker than the CTS-V (LS6) I was working on today. And it'* faster, too!

Before and after N* tb:

It still has the dip at 5600rpm, I saw 1.5deg KR at 5675rpm and it was gone by 6100rpm, which is the exact start and end of the dip. I think it'* false knock. I'll disable the KR and try a run to see if the power is affected. My guess is it won't be.
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Old 12-04-2009, 07:57 AM   #33
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Dang, that is some serious power
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Old 12-04-2009, 11:15 AM   #34
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Quote:
Originally Posted by Danthurs View Post
Dang, that is some serious power
...and I have not even turned up the boost yet. The turbo is barely above idle at this power level. It is only making 6-7psi. This thing will really start to sing at about 12psi. That'* where my combined boost will be about 22-24psi.
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Old 12-04-2009, 12:11 PM   #35
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When do we get to see some pictures of this beast?
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Old 12-04-2009, 12:54 PM   #36
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This is an old picture, no N* tb, no header wrap, original fuel lines, tcm, pcm, and wires still hanging out... I'll take some pics this weekend and post a good one.
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Old 12-08-2009, 08:52 PM   #37
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wow. your a little a head of me. im still pushing to break the 300 mark. im new here and looking to upgrade my 03 bonneville se.
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Old 12-08-2009, 08:57 PM   #38
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I believe that'* his at the wheels HP, his crank HP is a lot higher.
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Old 12-09-2009, 12:36 AM   #39
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Nice Jeff. Totally unique and exciting. What in the hell are you going to do about actually getting all that power to the ground. LOL.
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Old 12-10-2009, 07:52 AM   #40
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Very impressive!! I couldnt hardly believe the numbers!! Great work!
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