Is this a good set-up? I plan to push my turbo to its limits..supposused to create like 315 to the wheels..

series 4 turboII
stock ported motor
Rtek 1.7
knightssports hybrid
greddy fmic
walbro 255(rewired)
s-safcII

my question should i run the 700ccX2 additonal injectors for more fuel(the fmic has them on there) the fuel caculator on rx7.com says i should run it, any ideas. I want to take it to a dyno for tune but i don't want to be limited because i'm not having enough fuel. I found a aic for a pretty good price just need some input.

 

get some 800's and ditch the safc. the rtec tunes it enough.

 

1.7 is not the tunable rtek

 

I would definetly run atleast 720's for secondaries. You need to have the additional injector controller to run the extra injectors that are on your front mount properly.


Even if the Rtek detunes the 720's you can still massage the fuel curve a little with the AFC.

 

word^^^

 

rtek 1.7 is the 550primaries , 720 secondaries so if i get the aic to control the injectors in the fmic i should be okay for fuel, Am i understaing your concerns right?just don't want to blow up beacuse of lean conditions.

 

get a wide band

 

^ that is next on the list i want to get fuel systems figured out, and bought. I won't increase the power entill i have a wideband or a trip to the dyno. Still winter so just buying parts till spring.

 

You might not need the extra injectors in the FMIC with the 720 injectors. Keep the boost below 10psi and get to a dyno or get a wideband. The only problem with just getting a wideband is that it gets tough to tune sometimes because its hard to watch the display while watching the tach and driving at the same time. I suggest having a friend ride along.

My old setup was with a Rtek 1.5, 550's and 720's, rewired walbro, BNR Stage 1 hybrid turbo, and HKS S-AFR. I put down 294 horsepower with the setup.

 

when i switch to a hybrid turbo soon I'm gunna use the rtek version 1.8 and run 720cc primaries and secondaries just to be on the nice and safe side

 

I went ahead and bought the aic so ill let you you know how things turn out.

 

Good luck. Give us an update on how everything works out. I thought about doing the same thing some time back.

 

^I'll keep people posted

 

stock injectors on those mods is just asking for it...

 

^what do you mean stock injectors....550 primary injectors so i don't have to dick with overly rich idle problems....im running 2x550 primaries 2x720cc secodaries and 2X700 added injectors i think that is as much fuel as i need for only 350max hp to the wheels. don't just say "stock injectors on those mods is just asking for it"..i'm asking you to put a reason. that is why i started a thread asking a question to get answers not coments that **** me off