Modified LT1 /TPI throttle body
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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:
![](https://i54.photobucket.com/albums/g102/860performance/TBbefore.jpg)
After:
![](https://i54.photobucket.com/albums/g102/860performance/tbafter.jpg)
I'll update tomorrow with dyno results.
Vinny
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:
![](https://i54.photobucket.com/albums/g102/860performance/TBbefore.jpg)
After:
![](https://i54.photobucket.com/albums/g102/860performance/tbafter.jpg)
I'll update tomorrow with dyno results.
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Vinny
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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.
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.