2.0L LSJ Performance Tech 205hp Supercharged SS tuner version. 200 lb-ft of torque.

RPM's drop slooowwww

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Old Apr 7, 2007 | 01:07 PM
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Black07's Avatar
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From: Calgary Alberta Canada
RPM's drop slooowwww

ive noticed that when you rev the engine, the rpms dont drop very quickly.....to me this means the exhaust cant get out quick enough....whats your guy's take?


the only mod i have is the airbox mod....
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Old Apr 7, 2007 | 01:09 PM
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From: Houston
Originally Posted by Black07
ive noticed that when you rev the engine, the rpms dont drop very quickly.....to me this means the exhaust cant get out quick enough....whats your guy's take?


the only mod i have is the airbox mod....
nope what you have is not the air getting out quick enough. its the way GM makes them. if im not mistaken HPtuners will take care of that
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Old Apr 7, 2007 | 01:10 PM
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From: Clintwood, VA
Originally Posted by NinjaHampster
nope what you have is not the air getting out quick enough. its the way GM makes them. if im not mistaken HPtuners will take care of that
exactly.
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Old Apr 7, 2007 | 01:12 PM
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that's just the way the cars are designed... it helps keep emissions down... if the RPMs drop slowly the emissions system has time to burn off all the pollutants being produced... getting a lighter flywheel will help some.
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Old Apr 7, 2007 | 01:19 PM
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thanks guys....im probly going to get stage 2 in the next couple months, so ill hold off on the tune until then.
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Old Apr 7, 2007 | 01:21 PM
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From: Houston
Originally Posted by Black07
thanks guys....im probly going to get stage 2 in the next couple months, so ill hold off on the tune until then.
good idea, thats what im doing
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Old Apr 7, 2007 | 02:39 PM
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From: Lewisville, TX
It does the exact same thing eve with all of my mods which are listed in my signature. He is right about the emissions thing though.
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Old Apr 7, 2007 | 03:33 PM
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From: rocky mount, virginia
mine is the same way, when i rev to anything past 3.5k, it will drop slow then at about 1,200, 1,400 rpm it will hesitate jump up a little then go back down. is that normal?
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Old Apr 7, 2007 | 03:35 PM
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From: Red Deer, Alberta
Originally Posted by hondakiller
mine is the same way, when i rev to anything past 3.5k, it will drop slow then at about 1,200, 1,400 rpm it will hesitate jump up a little then go back down. is that normal?
Yup. Just like the other guys said, done by the computer... mostly for emissions
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Old Apr 7, 2007 | 03:37 PM
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From: Raleigh NC
I wonder if we get this taken care of if this would drop temps down on the engine
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Old Apr 7, 2007 | 03:39 PM
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From: Central NY
If you pull out your emissions fuse it will help a LITTLE bit
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Old Apr 7, 2007 | 04:11 PM
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thats the one thing i miss about my 87 mustang gt.....it sounded like a stock car, and the rpm's dropped instantly....i just figured it dropped that fast because i had a full exhaust system on it.
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