whats the best fuel pump to run with 850cc primary and 1600cc secondary? i'm shooting for about 450 RWHP
will a supra TT pump work?

 

^^

 

yes a supra pump will work... they are good for 550hp. You are running alot of fuel through those injectors. It isn't really neccessary to swapout your primaries for 850s for the 450hp goal you are trying to attain--the 550s should suffice. Unless maybe you're thinking about more serious boost

 

I made a web page that you can use to calculate fuel system capacity and requirements. It might be useful:
http://www.maxcooper.com/rx7/how-to/...tem/calcs.html

Since anyone reading this here would resonably assume you have a rotary, and plan to run about 15-20 psi, HP quotes given from experience here might be useful. But, HP ratings for fuel pumps aren't that useful without additional information. A rotary makes less power with the same fuel that a piston engine does. A turbo motor also makes less with the same fuel as an NA motor, and requires higher pressure. Pressure is really important, as fuel pump flow goes down as pressure goes up. Figure out what flow and pressure you need, and then choose a pump that exceeds those flow and pressure requirements.

-Max

 

what about a 300zx TT pump?