Hi. I'm putting a Series 5 Turbo motor (streetport) in a 1st gen rx7. I'm using an Injection Perfection IDA throttle body on the intake side & Super 60-1 A/R .84 on the turbo/exhaust side. Which would be best? 4 of the same size injectors (eg 4x850cc) or 2 small & 2 large injectors (eg 2x550 & 2x1600). For management a Microtech LTX8s will be installed.

Horsepower goal is around 350 rwhp.

Thanks

 

For ease of tuning. 4 Injectors of the same size result in the smoothest tune.

Id run 4X900cc injectors.

http://www.raceonly.com.au/product_i...products_id=45

Make sure you put a surge tank and an external fuel pump as under 1/4 tank your car will lean out.