I am running a 92 FD from japan I just dropped off a power fc the commander and the laptop connections to the shop. tuesday morning they are throwing it all on an engine dyno. They wanted to know what boost i was looking for. I said keep it at 10psi unless I leave a msg on the weekend.

My engine mods are:

Nology Hot Wires
3" HKS Downpipe
HKS Cast Headers
Trust Airinx Dual Intake
Greedy Type RS BOV
Apexi ECU
Apexi Commander
Apexi Boost Controler kit to go with the ECU
Apexi Laptop Connecter for easier tuning
Greedy oil catch can
Greedy oil relocation kit (easier install of oil temp and oil presure gauges)
Walboro 255 Fuel Pump

Mods Related but not engine:
Vented hood
Tossed Battery in trunk.


Intercooler will be added soon but probably not for a month or two.

So back to the real question how much boost can I run SAFE. I don't plan on porting the engine or doing new apex seals till xmas so I want to avoid blowing the motor till atleast season end. Should I say with 10? is 15 safe?

 

12psi.

 

7 it seems like this question is asked every week...
search function is your friend

 

the stock twins cant handle 15 psi reliably, 14 psi is like the max.

 

I wouldn't run more than 12 on the stock IC. Actually, I did once, on the dyno-and then the plastic endtanks blew off. Ahh, good times.

 

On stock IC I would stay at 10.