My car feels down on power and like the exhaust is restricted...
#1
12-09-2012 | 10:32 AM
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My car feels down on power and like the exhaust is restricted...
I noticed that my exhaust sounds muffled and i'm definitely down on power. Car boost perfectly fine to 1.2 bar. I'm running a catless exhaust and it basically sounds like something is blocking it when driving or even free revving. No CEL's or idiot lights are on in the dash. All my boost hoses are connected and tight. Plugs have less then 1000 miles on em.
I'm dumbfounded on what it could be, any suggestions?
I'm dumbfounded on what it could be, any suggestions?
#3
12-09-2012 | 12:28 PM
exhaust leak... ?
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2001 996TT 3.6L and stock ECU
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2001 996TT 3.6L and stock ECU
9.66 seconds @ 147.76 mph 1/4 mile click to view
160 mph @ 9.77 seconds in 1/4 mile click to view
50% OFF ON PORSCHE ECU TUNING BLACK FRIDAY SPECIAL
#7
12-11-2012 | 06:23 AM
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Blown dv's could cause the exhaust to feel and sound muffled/restricted and the power to be down?
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#8
12-11-2012 | 07:58 AM
less power different exhaust tone. check the turbo wheels just incase on intake/exhaust sides... and check that they spin freely
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#TeamAIM
997TT SilverSpool - 210.8 mph 1/2 Mile WR Apr 2019, 9.2 @ 168 mph 1/4 Mile Manual World Record , 3.15 60-130 mph , 2.72 100-150 mph , 1400whp E85
996TT SpoolBus - 204.6 mph 1/2 Mile 996TT WR Aug 2018, 9.5 @ 154 mph, 3.23 60-130 mph, 2.5 100-150 mph Manual Porsche World Record, 1400whp E85
997TT SlowBerry - 205.0 mph 1/2 Mile WR Nov 2018, 9.7 @ 170 mph 1/4 Mile , 3.2 60-130 mph , 2.4 100-150 mph , 1420whp E85
ESMOTOR | DO88 | TPC DSC | SYVECS | COBB | IPD | KLINE | XONA | AMS | ID | ERP | SACHS | TURBOSMART | CSF | DODSON |
#9
12-11-2012 | 08:50 AM
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What exhaust? baffle could have broken. But if a dv is opening enough the turbo needs to spin faster to make the 1.2 bar. so the wg would be closed forcing all the exhaust threw the turbo increasing back psi. Idle should sound the same.
#10
12-11-2012 | 11:08 AM
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prodigymb: Sounds like we might be on to something then...
Tim: When I rev it, it sounds muffled, at idle it sounds fine. But I can tell the restriction is causing the exhaust sound to change and the engine to work harder to rev and build boost. I have custom mufflers, so do you think they still could break a baffle?
Tim: When I rev it, it sounds muffled, at idle it sounds fine. But I can tell the restriction is causing the exhaust sound to change and the engine to work harder to rev and build boost. I have custom mufflers, so do you think they still could break a baffle?
