I have a 98 ta with ls6 cam, lid, flowmaster.
Currently running NOS 5177 with two .032 jets rated as 100 hp by NOS.
The car dynoed at 301 NA and 376 juice before the cam change.
When people refer to 125 as safe on the stock pump and injectors do they mean rwhp or crank?
Would .034 jets get me to 100 rwhp shot and is this safe ?
Thanks

 

I spray 150 RWHP on a stock pump...but it is a WET kit.

 

A set of dual .036's will get you real close to the 100rwhp. dual .032's are 95crank and about 80rwhp. A 100rwhp dry hit on your mods is doable for sure. I ahve run this on more than few stock injector cars with no issues. Fuel pumps on f-bods are usually good to about 450hp when in good working order. the only way to be absolute is to log or dyno for duty cycle, a/f and kr, imo. I think your fine though, and have set-up/or run many 5177s.
Robert

 

Generally I have always been told that the F-body pumps are good to about 500rwhp and the vette pumps are good to 550rwhp (correct me if I'm wrong Robert). I think it really is just a car to car bases because we've had a F-body make over 600rwhp on the dyno with a stock pump (this was a wet system). Don't ask me why we did it, it was mainly just to see what a 200hp shot would do on a head/cam car. Surprisingly it ran fine and lived to make many many more dyno pulls (it was a test mule). My best advise would be to get it on a dyno and data log it to see if you'll be running out of fuel or not.

 

That's true jeremy, cause the vette pumps can support over 600hp and some do it, but I like to be safe on giving advice when not knowing condition of pump. Like you said dyno/log or press gauge to find out if your running out of pump to be sure.
Robert

 

Thanks guys I think Ill keep it on the 32's till I get to a dyno.
So back to the original question when people speak of 125 shot as being safe do the mean crank or at the wheels?

 

550 crank hp is a safe limit for the stock pump in good working order