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Modified LT1 /TPI throttle body

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Old 05-17-2006, 07:10 AM
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Default Modified LT1 /TPI throttle body

Here are some pics of my TB. Obviously not an LS1.
I'm running a 300hp dry shot and a 150hp wet shot through it (not direct port) tonight at the dyno.
I was worried that the wet shot and or dry was going to get pooled up in the AIC hole and the other hole between the 2 butterflies. Especcially since I have 3 nozzles in front of it. The 2 outer are dry and the center is the wet one.
So a little welding and grinding took care of that.
Before:


After:




I'll update tomorrow with dyno results.
Vinny
Old 05-17-2006, 09:02 AM
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Nice deft touch with the grinder there Vinny
Old 05-17-2006, 09:36 AM
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Nice, thats alot of welding
Those TB's always remind me of the fisher price viewmaster, paint it red
Old 05-17-2006, 10:19 AM
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I agree, but I bet the view-master flows better.
Old 05-17-2006, 09:33 PM
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Dyno Results:

Motor only-289 hp

With N20- 606hp / 650tq

The problem I'm having is its emtying the bottle so fast I need to start with a full bottle at 1100 psi. The 606hp pull started at 900 psi and ended at 550psi. The run went below 10:1A/F, but probably due to the low bottle pressure. I need to go back with a few full hot bottles and try again. I think 650 should be a good target to shoot for.

Last edited by 860 Performance; 05-18-2006 at 07:54 AM.
Old 05-17-2006, 11:02 PM
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Nice work, and great numbers. I went to dual 15lb bottles so I don't have to change out so often.
Robert




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