S4/S5 RX7 differences - Grassroots Motorsports
2012年8月23日 · If you swap belts, the carpet on the S5 is different from the S4 to accommodate the silly lap belt. If you swap in the S4 belts, you can hide it, it isn't very noticeable. OR, for …
S4 vs. S5 FC RX-7 questions - Grassroots Motorsports
2009年11月25日 · The easiest was to put a S5 engine into an S4 is to take everything off the S4 and put it on the S5 (front cover, intake, injectors, bac, tb, etc). I would recommend going …
2nd gen RX7 intakes and OMP.| Grassroots Motorsports forum
2012年7月24日 · On my setup, I used a complete S5 intake with an S4 front cover and mechanical OMP, then made a cable to operate the lever. I have heard of making a hybrid …
S4 NA RX7 needs more powars.... - Grassroots Motorsports
2015年4月27日 · 2) The S4 intake is also restrictive. The S5 is much freer flowing and is a bolt on swap. It has a 'short runner' valve which can be wired to provide short or long runners. They …
FC Chassis RX7 - Grassroots Motorsports
2008年10月13日 · 2) The S5 GTU is the base model, the 1988 GTU is the lightweight sport model. Look for an S4 GXL as it has: clutch type limited slip, turbo brakes, turbo suspension, …
Boost control on Rx7 Turbo II - Grassroots Motorsports
I have a 1987 RX7 Turbo II lemons / chumpcar. We have a free flowing exhaust on the car and now the car is boosting to 12 psi. I took the turbo off and ported the internal wastegate. Now, …
Running really STUPID rich... - Grassroots Motorsports
2010年8月25日 · It's running a non-turbo 1990 RX7 13B, called an S5. I am using a hybrid fuel injection system with an S4 (1986-1988) ECM and a S5 (1989-1991) air flow meter. That's a …
misc S4 and S5 Rx7 parts. need to fund project.
S5 NA engine weight code B, includes oil control ring springs mazda/mazda competition, includes oil control ring trays. Price: 130 shipped. Various water pumps S4 and S5 Price: 25+ shipping. …
1987 RX7 FC Turbo II roller shell $900 - Grassroots Motorsports
2017年4月21日 · Chris Several parts of that car make it look more like an S5 than an S4. Taillights for example. Sure it's not an '89? If it's an '87 it's had lots of grafting of newer-gen …
Just got an FC RX7 race car. What do I need to know?
2022年5月3日 · Car has a freshened S5 engine and electronics, 5 lug hubs/brakes, coilovers, 5.12 torsen rear. What do I need to know about care and feeding of an FC RX7 race car? Any …