First off, I have an 89' TII. I'm going to get a BNR Stage II (btw, I heard that rx7store isn't using BNR anymore for the turbo upgrading, is this true?), RB Turboback, A'pexi intake, Walbro 255, S-AFC, and I was wondering what type of injectors and sizes i'll need.

I've heard 4x720cc works for my setup goals, but also that 720's on the primaries tend to leak and have problems, and that it was ok to only use 720cc secondaries. I'll probably be shooting for under 300whp with my TMIC, so I won't be boosting too high on the turbo until I get a FMIC, so would I be safe going with only upgraded secondaries?

- Brian

 

I'm not sure if the S-AFC will pull enough fuel out of the primary 720's for the car to idle. The 720's in the secondaries will be fine, use a wideband or get it on a dyno to get the most out iof it.

 

Ok, also, whats the difference between the kinds of injectors? I keep hearing a bunch of different stuff about what ones will work in what cars, but i'm not exactly sure what to be looking for. Any suggestions that will work on an S5 TII?

 

I'm running 4 x 720 with an e-manage; I had heard reports of poor idling and accounts of flooding but I've experienced neither.