Hello to everyone, i just recently purchased a 1988 10th anniversary rx-7 turbo. here a some of the things are done, JDM block series 4, ACT clutch, full exhaust, msd,hks f-con,FD fuel pump,90 turbo and manifold w/upgraded compressor wheel. I bought the car for 2k. ill be picking it up this week. I really dont know much about the rx-7's so im sure ill be asking you guys a million questions.

 

i do actually have a question. how much boost does this car put out stock? and if i buy a boost controller, how much is safe to turn the boost up to?

 

Stock max boost for S4 TIIs is about 6.6 psi, and stock max boost for S5s TIIs is about 8.3 psi. All I did was search for "stock boost". Wasn't that hard.

 

10 PSI is what I consider to be the absolute LIMIT on stock fuel. Some people will tell you 12 PSI is fine, but I dont recommend that.

 

i wouldnt go past 12lb of boost on a jspec that wasnt rebuilt. 12 pounds is really pushing it. 10 pounds is good for reliability.
if you run lean. you pop a seal
read up about premix. i suggest you premix. it will make your engine last a hell of alot longer. my n/a is at 188,000 miles and i rag the **** out of it. thank god for
premix!
premix!
premix!

so read up about premix.
read up in the sticky
https://www.rx7club.com/2nd-generation-specific-1986-1992-17/frequently-asked-questions-2nd-generation-rx-7-faq-fc-494667/
and just make sure you never run lean.
common engine problems. busting a coolant seal. breaking an apex and rebuilding for around 1200.
turbo failure
oil line ruptures
coolant pump failure
tps acting up
bacv acting up
and i guess teh list goes on. i'm just saying what i've had out of personal experience with rx7s, or friends having problems. good luck.

 

Thanks alot for your input, and hopefully i wont blow this thing up? btw anyone got any good ideas for some mods i should do?