Hi guys, i have a 99' spec rx7 and have a few parts arriving from Japan.

power Fc, greddy downpipe, apexi catback, hks intake , koyo radiator, ( defi guages and aluminium ast)

I also have a Supra TT fuel pump and Sard fuel pressure regulator sitting at home, was wondering if i should even bother upgrading the fuel system or should i just leave it out all together?.
Im not looking for big Horsepower, im not wanting to stress the engine in anyway, just want the car to be more reliable with the basic mods.

If i was to add in the fuel system , what size injectors would be needed ? just upgrading the primaries to 850 be ok? as i said im not looking for big horsepower

any suggestions would be appreciated.

Thanks

 

What boost level are you running? I see a few flow mods but not boost controller listed, so if you haven't, get one installed. You need to have control of your boost, and once you do, that is what determines your fuel system needs. If you want to stay on stock fuel system, you'll want to limit your boost accordingly.

While you can install fuel mods, etc to raise the ceiling on boost, you can also use the boost controller to stay ok for what you have now. It's your choice, but once you go beyond stock it's a matter of tuning - I suggest youf find a good tuner and go from there.

Dave

 

thanks for the reply Dave,
seeing as though im going to get it tuned , i may as well tune it with the fuel system added.
I dont plan to go above 350 hp, so in regards to injectors, should i change just the primaries to 850cc or should i go with 550 primary / 1000cc sedondary setup?
Thanks again

 

1000cc secondaries aren't really much more than stock. Go bigger (at least 1300cc sec's) or run 850cc in the primary, that will be enough for 350 rwhp without a problem.

Check this link:

http://www.gothamracing.com/catalog/...roducts_id=864