Hey,

I just picked up a P1SC kit with the standard dual intercoolers. I plan to run it with my current setup TR224-112, PnP 243 heads, LS6 intake and the rest of the stuff in my sig.

My questions are:

What kind of power/tq should I expect?
I have 33lb@43.5 injectors. Will they be enough?
No dyno in my area. I use EFI Live. How difficult will it be to tune?

I will take the N2O off and sell it.
I expect to run 5lbs of boost.

Thanks

 

Not too sure about a lot of that, but I know that 33lb injectors are not going to be enough. I'd go with either 42 lb or 60 to play it safe.

 

Get some 60 lb/hr injectors.

 

As has been mentioned, you need to go with larger 60# injectors.
I wouldn't mess around with 5 lbs of boost, I'd go for 7 or 8 lbs. 5 lbs would make your combination seem weak, and would take more rpm to even feel it. 8 lbs should give you approx 140 extra rwhp.

Tuning with forced induction can quickly lead to a broken piston if you're not familiar with the aspects of the fuel and timing requirements. I'd try to find someone with a similar combination that can give you a copy of their tune for starters, and shoot for an air/fuel ratio above 5000 rpm of 11.5/1, and pull the timing back to 18 degrees.

If you need any piece parts to complete your installation, I have most of them listed at this link. http://shop.brutespeed.com/98-02-F-Body_c181.htm Bob

 

I have a brand new set of 60# motrons I want to sell if you are interested shoot me a PM. I ended up going with 80# these have never had fuel in them.

 

Don't waste ur time w 42s just go right for the 60s. Listen to bob n go w 8lbs he knows his stuff

 

Bob,
Thank you very much for the info. I will pick up a set of 60lb injectors.

As far as tuning, I will post up on EFI Live to ask for a base tune. I run N/A at around 24 degrees and 12.4/1. I am brand new to FI so I will play it safe.

Also, I have a Racetronix pump that runs at about 68lbs. I pulled it out and went back to a stock pump because the Racetronix was difficult to tune for at that pressure. I'm sure I will need the bigger pump. Do you think I will need a regulator?

Thanks again,
Bob

 

I would switch back to the Racetronix pump and maybe get a set of fuel rails with an aftermarket regulator rail mounted for better FP control.

 

You're welcome!
I agree with Packy, switch back to the Racetronix pump and the regulator will help you to dial back the fuel pressure so you can find a base tune to start with. Bob

 

Yeah, I would definitely go with 7-8lbs like Bob said. Should put you around the 500 mark.

 

Thank you for the replies. They have been helpful. Could someone point in the right direction for a fuel pressure regulator?
I'm not real sure of the best way to go
Thanks

 

http://www.nastyperformance.com/default.html

Check with Nate to see what he has that will work for you. Bob