i just put a racing beat full exhaust on my car...with the fuel cut controller and everything and after driving it for one day the car shut down...i got it runnning again but it sounds like its only running on one rotor....anyone think they might know whats wrong?? please help

there is a chance you blow the motor. 3" exhuast + FCD is a killer without any other mods. espeicaly if you don't have a boost gauge and can let off before boost goes to high...

i got it runnning again but it sounds like its runnning on one rotor

Like he said, RB full exhaust and FCD = Boom



Did you take the car out for a full 3rd gear run...





Do a compression test quickly, remove one spark plug from each chanber and feel with you finger tips bounces from each face. You'll need friend to help. Do one rotor at time. Must likely it will be the rear rotor.



C

Do a compression test. There is a chance it could also be the FCD. Try unplugging the FCD and start the car.

i havnt checked the compression yet but..the spark plugs in the rear arnt getting gas to them..

could it be the O2 sensor?

No, check your fcd like Cheers! said.

boost spikes = bad if you dont know what your boosting at, i dunno about FC's but FD you cant run a full exhaust on a stock ECU and not get spikes so ..

you can run the car without an o2 sensor, your gas mileage would just suck ass.

we call the racing beat exhaust the apex seal removal kit....

anyone know any web sites the sell good rotary motors?

Atkins Rotary

the stock ECU cuts fuel to the rear rotor at boost levels above like 8.5 psi. if that FCD is crappy or installed incorrectly, it might be sending a wrong signal to the ECU and it might think that engine boost is always above 8.5 psi, and it might be cutting fuel even at idle.



like cheers said, remove the FCD and run the car. it will still work fine (assuming the engine is good), but if you overboost, the rear rotor will shut off and that isn't good.

Supposedly my ECU has a FCD programmed into it. Recently, my brother and I have finally been able to push past 5psi on my T3/T4, and it's at 12psi right now. Runs STRONG and it's damn fast. How can I know if it actually cutting fuel to that rear rotor, though?

You get bitch slapped by the car, well that's how it feels when is fuel cut, not going lean.

really? Fuel cut for me fuels like uppper RPM hestitation at a high gear like 3rd, 4th or 5th.

Wait are you guys saying that a full racing beat exhaust (header, silencer, cat back) could blow my engine???

Uh...yeah

On a N/A, absolutely not. You'll make even more power if you lean things out with a safc.



A tII is a different story...

On my old FC I passed some jack ass in a Cherokee, quite calmly too. I was just cruising in 5th and then as I'm passing him he hits the pedall too. WTF? so I give it full throttle and then ta-ta-ta-ta-ta-ta-ta-ta, I hit fuel cut. No blown engine luckily but the guy is still a jack ass. Sorry, a little off topic, continue...

mine hasn't blown and i've had it for almost a year now. you just have to be smart about it. buy an aftermarket boost gauge so you can monitor how much boost you are pushing. keep any creep below 12 and watch the 2-gear downshifts (which really cause major creep) and you should be fine.

I would really really really reccommend a FD pump or walbro when you go with the RB exhuast. The stock t2 fuel pump, is the first weak link in the fuel system.

cheked the compression...there is none in the front rotor..the rear one is fine so im **** out of luck..time to buy a port and polished engine i guess

Don't stop with just the new motor. Be sure you upgrade your fuel system with at least a better pump, port your wastegate, and get a boost gauge. If you don't, you'll just be doing this again real soon.

Although mine's an N/A ... does that mean there's pretty much nothing to worry about?

I highly doubt you will be able to run an N/A lean enough to blow it by adding an exhaust. Hell I don't think you could blow up an any with every bolt-on made for your car.

the na has a big fuel system if anything you need to lean it out