NOS 05151 Kit on TPI Engine Question.
Thread Starter
Instructor
Joined: Jun 2002
Posts: 135
Likes: 0
From: Lakeland FL
NOS 05151 Kit on TPI Engine Question.
I just installed a NOS - 05151 Plate TPI kit on my 89 corvette. When it is activated it bogs down and I notice that the fuel pressure drops to about 25 psi. My idle pressure is 43 and load pressure is about 53. I have tried trouble shooting the noraml things. I have a full bottle of Nitrous and it is running at 900 psi. I have used NOS on other cars, but not with a high pressure system mostly carb plate systems. I have tried both 100hp and the 150 hp both feel weak. Has anyone else had this problem or have any thoughts.
Team Owner
Joined: Mar 2000
Posts: 83,383
Likes: 87
From: Boston, MA
Jet the kit for 50HP and watch your fuel pressure. It sounds like your fuel pump can't keep up with the higher jets. Have you ever changed our fuel pump? It might be on its way out for high demands like that. Pump upgrades are relatively cheap. If I were you I would think about installing a fuel pressure cutoff switch as a safety measure with pressures going that low. You don't want to run it lean.
Team Owner
Joined: Mar 2000
Posts: 83,383
Likes: 87
From: Boston, MA
This kit is very popular and a good value at that...
http://www.racetronix.com/Racetronix-C44-FPK.html
http://www.racetronix.com/Racetronix-C44-FPK.html
Melting Slicks
Joined: Oct 2000
Posts: 2,158
Likes: 9
From: N.E. WA
Re: NOS 05151 Kit on TPI Engine Question. (red-y)
If the NOS solenoid is not opening, the car will bog. You will be getting enrichment fuel and no NOS, so the car will be super rich. I run that same kit and have never had a problem with it. You could also check the impedance of both solenoids, the NOS coil may be open. Good luck!
