I have 94 rx7 I've canged the computer apexi and commander 3" stainless down pipe andexust no cat no muffler stright through,eliminatted air pump new rad and fans and controller for fans.I am running now about 16-16.5 lbs of boost,is this ok or should I get it checked.

Thanks in advance

fcapo

 

The base mod map on the PFC is tuned for 13 psi or so.

You seriously need to spend a few hours reading the FAQ and searching.

 

16.5 psi on the twins?!! i think you need to tone that down a little.

 

read the FAQ and take the car to a tuner to tune that PFC... and turn that boost down to between 10-13 psi until you can get a tune

 

16-16.5 psi of boost is NOT SAFE on your stock fuel system. Nor is your stock intercooler capable of cooling this adequately.

Set your Commander to show 4 readings: 1)Injector Duty Cycle, 2)Boost, 3) Water Temp, and 4) Air Temp.


I am willing to bet that your IAT is well over 70 degrees celcius. And you are probably hitting 100% IDC on the regular, you're injectors are probably also fried.


STOP DRIVING YOUR CAR LIKE THIS!!!

Simple answer: Put the STOCK cat back in your car. You do not have the correct setup right now to safely run a free flowing exhaust.

End of story.

 

Do people in Toronto speak english??

 

I think it's a 50/50 of French and English..

I believe I've seen threads in the lounge of a similar effect though...

https://www.rx7club.com/lounge-192/20-pound-weight-like-30-pounds-if-guy-lifts-757949/

 

ait is at 73 and idc at 89% at 14 psi.Thank you for your responce and input.By the way we do speek the english language very well,but **** on the French do not speak it or wish to.


MANY THANKS

fcapo

 

I'm surprised that your IDC is that low... Either there is a VERY good chance you are leaning out (dangerously) or you have had modifications done to your fueling. Before I had my entire system re-done I had my car tuned to a safe level and ran about 13psi on the stock fuel system. I don't know if I was just super rich (I doubt it) or not but I was seeing 100% IDC at around 13psi on full throttle/high rpms. I didn't stress it because I was (like I said) getting EVERYTHING replaced in about a months time.


Has your PFC been tuned (base map is only set for basic mods and 13psi) by anybody?? I would really suggest you add some restrictions to your exhaust, replace the Intercooler (anything over 40* and you want to start looking for a solution) and get that thing mapped!

Good luck,

 

I have a much larger intercooler coming and new apexi intake kit.When they come in I will install them which should make it breath much better and then I will get it tuned on the dyno again many thanks for taking the time out to responde.

Many Thanks

fcapo

 

I seriously would not drive the car in its current state unless you turn the boost way down (and even then I'd look out for creep because of the lack of a cat). The base mod map on the PFC actually starts pulling fuel with IATs over 50C, which is the last thing you want at an untuned 16+ psi. If you boosted to 16 psi during winter you'd be looking for a new engine.