Power Adders Getting a Supercharger or Turbocharger? Thinking about using Nitrous? All forced induction and N2O topics discussed here.

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Old Dec 3, 2006 | 02:28 PM
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NOS question

I have a super power shot plate system that I was going to use nova. What will I need to use it on my TPI setup instead?
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Old Dec 3, 2006 | 06:08 PM
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Car: 1988 Firebird S/E
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Axle/Gears: 7.5" Auburn 4.10 Posi-Traction
You'll want to convert it over to a "WET" direct port injection system. You can reuse your nitrous and fuel solenoids, the bottle and the feed line. You will need to buy a "Sportsman" fogger tube,distribution block and fogger nozzle kit.
You will have to remove the intake manifold, drill and tap holes for the nozzles, in the 8 intake ports and install the kit.
You will need a auxillary fuel pump for the "WET" system. it does not piggy back your EFI fuel system.
A auxillary underhood 3 gallon fuel cell, Carter P4594 electric pump and a holley fuel pressure regulator and a pressure guage is the best, simplest, most reliable way to go.
Instead of 1 nitous jet and 1 fuel jet you'll need 8 nitrous jets and 8 fuel jets for each power level.
With 1 powershot n20 and 1 powershot fuel solenoid you are limited to about 175hp. if you want more power, add additional power shot solenoids and jet up accordingly.

Last edited by F-BIRD'88; Dec 3, 2006 at 06:20 PM.
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Old Dec 3, 2006 | 07:25 PM
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Is it possible to use a tpi plate instead?
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Old Dec 3, 2006 | 09:00 PM
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Nozzle in the air cleaner... Why wouldn't that work?
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Old Dec 3, 2006 | 09:05 PM
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I have the K&N cone filter. What exactly do I need to purchase and what can I use from my power shot kit? I wish I could find someone who wanted to trade kits.
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Old Dec 3, 2006 | 10:45 PM
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From: Ontario, Canada
Car: 1988 Firebird S/E
Engine: 406Ci Vortec SBC
Transmission: TH-350/3500stall
Axle/Gears: 7.5" Auburn 4.10 Posi-Traction
Originally Posted by theopsmanager
Is it possible to use a tpi plate instead?
The do make "A TPI Plate" that goes between the throttle body and intake manifold plenum. They have "dry kits" that just inject N2o at that point and Kick Up the engines fuel injectors for extra fuel(either by boosting fuel pressure or increasing injector duty cycle.) They also make a Wet EFI Plate with 1 or 2 fogger nozzles. Trouble is the TPI intake manifold was never intended to flow fuel in it. Its a "dry" manifold. Even N2O fuel distribution can be an issue. At very low power levels its less of and issue under 100hp. At higher power levels like 150+ its risky. With nitrous you do not want cylinder that are starved for fuel. (uneven distribution). Wet EI plate systems are better left to manifold styles that were origionally designed to flow fuel throu them (evenly) like some TBI intakes.

Stick with the WET/Direct port system layout. More work to install but much better in terms of reliability and power.
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Old Dec 4, 2006 | 12:53 AM
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Do you know anyone that can setup an intake for me if I supply the parts and pay for the labor?
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Old Dec 4, 2006 | 04:10 PM
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Car: 1988 Firebird S/E
Engine: 406Ci Vortec SBC
Transmission: TH-350/3500stall
Axle/Gears: 7.5" Auburn 4.10 Posi-Traction
Originally Posted by theopsmanager
Do you know anyone that can setup an intake for me if I supply the parts and pay for the labor?
I believe Holley does this. www.holley.com You have to ship them your intake. Apparently they have an extensive service, rebuild, fabrication, restoration shop for blowers, carbs etc etc.
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