Problem with my supercharger/engine.
Thread Starter
Lead Lap
Joined: Dec 2003
Posts: 753
Likes: 0
From: New Jersey
Problem with my supercharger/engine.
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.
Last edited by mikeyboy; Jul 26, 2006 at 11:12 PM.
Thread Starter
Lead Lap
Joined: Dec 2003
Posts: 753
Likes: 0
From: New Jersey
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)
Last edited by mikeyboy; Jul 27, 2006 at 07:06 AM.
Lead Lap
Joined: Feb 2001
Posts: 505
Likes: 0
From: hell
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.
Lexus Champion
Joined: Aug 2004
Posts: 2,183
Likes: 1
From: California
Originally Posted by mikeyboy
well, pretty much tuned. 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)
why are you at 100% duty cycle
who tuned it for you?
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Thread Starter
Lead Lap
Joined: Dec 2003
Posts: 753
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From: New Jersey
Originally Posted by mikal
why are you at 100% duty cycle
who tuned it for you?
who tuned it for you?
Last edited by mikeyboy; Jul 27, 2006 at 07:07 AM.
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Lexus Champion
Joined: Aug 2004
Posts: 2,183
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From: California
Originally Posted by Dx3
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
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.
Thread Starter
Lead Lap
Joined: Dec 2003
Posts: 753
Likes: 0
From: New Jersey
Originally Posted by mikal
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.
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.
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?
Thread Starter
Lead Lap
Joined: Dec 2003
Posts: 753
Likes: 0
From: New Jersey
Originally Posted by Dx3
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
Jonny
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.
Thread Starter
Lead Lap
Joined: Dec 2003
Posts: 753
Likes: 0
From: New Jersey
Originally Posted by mikal
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.
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.
Since we're all thinking that i'm running too rich, why would i be pre-detonating?