violator

buying a rx7 with a t04s turbo, just wanted to know what mods i need for the engine to run safely.

current mods are:
-apexi gt fmic
-blitz nura spec exh
-re downpipe/midpipe
-rebuilt engine with apex seals

what else do i need??
-injectors what size and how many?
-supra fuel pump?
-exhaust manifold?
-wastegate?
and ne thing im missing cuz i dont wanna blow this engine. thanks guys

ThirdGenRX7

you said you bought it with a t04s... is it on there already?

AJatx

iTrader: (1)

Injectors:
Size out the fuel requirements based on the horsepower you'd like to make. I think a few websites like Summit or RX7.com may have a fuel calculator.

Wastegate:
Make sure it has a good spring and outlet size.
You might get some boost spikes if you use a 7psi spring to regulate 14psi.

Fuel pump:
Fuel pump sizing would go with injector sizing as well.
A supra fuel pump should more than sufficient for 400 horses.
I'd suggest a nice fuel pressure regulator. You'll need to find a good pressure for your tuning.

Exhaust manifold:
You'll just need a manifold (cast iron or what not) to mount the turbo and have it fit in your car.

Oil routing:
Make sure you have some nice oil drain hose/pipe.
I used a -12 on my FC. A -8 killed my previous T04B CHRA. My recommendation is at least -10 size or above.
Are you using a stock Oil Pressure regulator? You may need to tap the oil feed line and put a small jet in place to limit some of the oil feed.

ECU!!!!!!!
You need a brain to run all those goodies.
I highly suggest a Haltech E6K or something equivalent (Motec, AEM, TEC).
I've only used the Haltech and I can't speak for the other vendors. It looks like the PFC limits your adjustment capabilities.

You may also want to invest in a wideband lambda meter. It's good for tuning and saves $$$ in the long run (compared to dyno tuning).
I got a UEGO set-up for about $1k. The O2 sensor may have a couple of hundred hours of life (costs about $300 to replace). The controller that warms the sensor up and displays the A/F ratio is the bulk of the price.
I've seen some DYIers post some cheaper alternatives.

J

violator

whoa man. thats alot of money on top of what the guy already has. this guy has just the turbo and he has blown his engine up like 3 times. just ddont wanna follow his tracks after i buy the car man. thanks for the detail post i really need all that info man if not do u have ne more sugestions?
i only got like 6000cdn to play around with too. not much.
and he has a FULL veilside rice body kit which i have to get rid of man. hehe

wonder1and

don't wanna be like me eh? try using 850's all the way around... get some vacuum hose and clean up your rats nest and well.... tune tune tune....
and thats 3 times in 5 months

wonder1and

p.s. fuel pump