Well today my car was giving me a pretty big problem 2GS3. The car at around 4800rpm's +- 5lb's of boost the car begins to like put, put, put, put rapidly, continuously, and powerless. The putting starts around 4k rpms and continues to about 4800 where it really doesn't give out any power, although i am boosting. It's almost identical to me hitting the rev limiter.

 

can you give more specifics??? sc setup? tuned or untuned?

 

well, pretty much untuned. I'm running the luxury motorworks FMU. its at 100% duty cycle at 8lbs of boost, which is usually where i'm at at WOT(7.9 to be exact)

 

hmmm...do you hear any strange noises? do you have a wideband? i'm unfamiliar with lmw's setup. could it be bogging??? i think the member mikal has the lmw sc. try pm'ing him. also try calling steve at lmw to see if he can better diagnose your problem.

 

Na, I don't have a wideband. What do you think it could be. I hope it's not compression issues? You think its an internal engine issue or an external issue

 

how long have you had this setup? did these problems just start recently? who did your tuning? try to pm mikal or lxogood to see if they can help.

 

why are you at 100% duty cycle
who tuned it for you?

 

The set-up is pretty fresh, i did install it like a year ago, but the car has been in the body shop for about a year. The set-up probably has about 20 miles on it at the most before today's meet. I coulda sworn when i was talking to steve he said i'm suppose to setup the e-manage according to how much boost i'm running? I'm maxing out at about 8lb's of boost. These problem's started today for the first time, never had this issue before with the set-up.

 

Your injectors might have been toasted. Running injectors at 100% duty cycle will burn them up.


Were you using a wideband to tune?

 

When you pass the 4800rpm mark do you start getting power back?? Sounds dumb but I had problems with belt slippage at a certain rpm.

Jonny

 

He just edited his post above. Looks like he's been boosting without tuning it.



You need to get somebody to tune it for you. The "put put put put put" you hear might be detonation (pre ignition and can cause serious damage). Please be more careful. You need to find somebody that can tune it for you with a wideband.

Also, you might need to get somebody to check those injectors. 100% cycle is not good on the injectors.

 

I edited right away, i didnt change anything in the post, i just added.

Quick update:
I removed the supercharger belt and removed one of the intercooler pipes and the car runs perfect. I own a mechanic shop, and the injectors are fine. What do you guys have your e-manage set at?

 

Hmmm....not exactly, but when i shift and let go of the gas at 4800 RPM's i hear the BOV, RPM's jump to about 4900rpm's.

 

Maybe what you hear is not the Blow off valve. It may be compressor surge and your BOV isn't working properly. That would make your RPM jump.

 

Another thing,
Since we're all thinking that i'm running too rich, why would i be pre-detonating?