BNR Stage 4 + stock ECU?
 

Do you think it woud be a problem to run a BNR Stage 4 turbo with the stock S4 TII ECU, top mount, stock MAP sensor, etc...?

I, personally, wouldn't. I guess it could be possible. But the real question is why?

I knew "Why?" was coming... Looking to downgrade to be honest. I cannot afford to get my Power FC repaired at the moment. Perhaps I should just go back to the stock turbo.

for cheap at least get some 720cc injectors off ebay in and have rtek installed on your pcm.

http://www.pocketlogger.com/index.ph...age=1&ecu=S4T2

for its money rtek is cheap

you are gonna run out of fuel..and BOOM!

With the stock ECU it will go boom. At the very least you need a piggy back fuel controller like the SAFC. Then you would need to keep the boost as low as possible and get someone who is an absolute master at tuning a rotary to even attempt tuning a stage 4 on the stock ecu with a piggy back. One mistake in the tuning process and boom. In the end a safc and tune is going to run you $500+ so the only "free" way to get your car up and running for the time being is putting your stock turbo and ecu back in.

Part out thread in.......10.....9......8

it could be done, but you'd need to run boost as low as possible, and even then it'll probably be lean up top. more fuel would be a great idea, FD pumps are usually almost free. bigger injectors would help.

it would also probably help to restrict the exhaust or intake...

put a stock turbo back on until your ready to get proper fuel. not worth it to risk your setup when you have the things you need to make it work properly, save the money and do it correctly.

Hahaha! Already kind of started that... Looking to just go back to the stock set-up for aftermarket parts. I really don't have the money, and do not want to part with my car. :-/

I have a Walbro, 720cc primaries, and 1,600cc secondaries. So, I have enough fuel... Yeah. I suppose going back to the stock set-up will be the answer for now.

The only way this car would run this way is if you revert back to stock injectors and don't pipe the turbo to the intake(aka run it NA).

This is why people call our cars unreliable. People do stupid things like this.

What? People have ran their cars this way??

I'm not looking to fuck my car up. This was just a question... I'm feeling out my options at this time. I've been looking for opnions and alternatives to get my car back on the road.

the turbo would explode in like 23 seconds, without the engine to pump against, it'll severely overspeed. much better to restrict the exhaust or intake.