johndanyal

Haven't had a chance to pressure check it. Just went over every coupler and clamp

Haven't had a chance to pressure check it. Just went over every coupler and clamp

Yeah I found one and fixed it but the issue is still there. Also today tried a brand new set of coil packs and still nothin

Ok I don't understand what you're trying to accomplish. It's my car I will drive it how I want to. I didn't ask for tips on how to make my motor last, I just want the damn thing to work properly

How's an oil pump gonna fix my problem

It's almost as if it's cutting ignition but not fuel. Everytime I try to hit the limiter it will bog and then let out a nice big flame from the exhaust

It's all stock except the intercooler.

It's a completely stock rb25

The engine wouldn't redline when I first got it running and then after a while it worked and now it stopped again

Hey did you ever figure out what was causing this issue for you? My rb seems to be doing the same thing.

Did you ever figure out what was causing this issue for you? My rb is doing the exact same thing. It used to bounce off the limiter, now it just goes brrrrrrrr and loses power

As in it is not running an aftermarket computer. It is running the factory computer and factory tune

Hate to bring back such an old post but did you ever figure out what the issue was? My RB25 is doing the exact same thing and I can't seem to figure it out

No i totally agree with you. I'm just saying it seems slightly unlikely to me. But i'm willing to try anything at this point

I'll do a pressure test but I doubt there's a leak. It will hold full boost In any gear at WOT all the way up to redline with no problem, it does not cut out or hesitate or do anything funky. It idles perfectly and doesn't missfire at all. It just will not bounce off the limiter. It's the strangest thing

the boost is at 7lbs. it is running the factory wastegate actuator

And the engine is not tuned. It is literally all bone stock minus the FMIC

The only problem is it bogs the engine down. It looses power and RPM's unless I get off the throttle and back on.

So ive been having an issue with my rb25 rev limiter and i cant seem to figure out what the problem is exactly. pretty much the car will pull amazing up until redline but it will not bounce off the limiter, instead it sounds like some sort of soft cut but it will bog the car down until i let off the throttle. i can get the car to hit the limiter when doing a standstill burnout in first gear or sometimes while doing a pull in first gear but it will not bounce off the limiter in any other condition. if i get back onto the throttle it will pull up until redline again and do the same thing over again. ive replaced the fuel pump (walbro 255), fpr, fuel filter, spark plugs (gapped to .8mm), and ive checked the coil packs and they dont have any cracks at all, ive also replaced the ecu, maf, and coil pack harness with known good ones and it had no affect. this issue has been happening since i completed the swap in january but randomly went away and it was bouncing off the limiter for about a month or so but then it started happening again after a day of drifting. also the wiring was done by an extremely reputable shop so its unlikely for it to be a wiring problem but who knows. someone plz help. this is my drift car i beat the shit out of it, thats what i put it together to do so please dont lecture me on engine abuse. i also do not have a wide band AFR installed (stupid i know) Also the engine is out of 1996 r33 so its a series 2, it has an e60 maf and a G8 ECU

So ive been having an issue with my rb25 rev limiter and i cant seem to figure out what the problem is exactly. pretty much the car will pull amazing up until redline but it will not bounce off the limiter, instead and it sounds like some sort of soft cut but it will bog the car down until i let off the throttle. if i get back onto the throttle it will pull up until redline again and do the same thing over again. ive replaced the fuel pump (walbro 255), fpr, fuel filter, spark plugs (gapped to .8mm), and ive checked the coil packs and they have no cracks or anything in them, ive also replaced the ecu, maf, and coil pack harness with known good ones and it had no affect. this issue has been happening since i completed the swap in january but randomly went away and it was bouncing off the limiter for about a month or so but then it started happening again after a drift event. also the wiring was done by an extremely reputable shop so its unlikely for it to be a wiring problem but who knows. someone plz help