2.4L LE5 Performance Tech 16 valve 171 hp EcoTec with 163 lb-ft of torque

Point at which power kicks in

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Old 05-27-2008, 06:23 PM
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Point at which power kicks in

Ive noticed that in the lower RPM range my car does not seem to have much pull until about 4k then it decides to go. It almost feels like the car is struggling to move at the lower RPM. Any ideas why? Only mod if a K$N intake and B&M shift+. I thought maybe tune but Im not sure if other experience this.
Old 05-27-2008, 06:25 PM
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That is how it is with all cars.
Old 05-27-2008, 06:26 PM
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thts why u downshift, get them RPMs up
Old 05-27-2008, 06:26 PM
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Originally Posted by wordsthatiwrote
Ive noticed that in the lower RPM range my car does not seem to have much pull until about 4k then it decides to go. It almost feels like the car is struggling to move at the lower RPM. Any ideas why? Only mod if a K$N intake and B&M shift+. I thought maybe tune but Im not sure if other experience this.
You need a tune. Your car limits torque below 4k and also has a timing dip right before hand. you are just experiencing a programmed delay in power. Get it tuned to get rid of it.
Old 05-27-2008, 06:27 PM
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Originally Posted by Psykostevo
You need a tune. Your car limits torque below 4k and also has a timing dip right before hand. you are just experiencing a programmed delay in power. Get it tuned to get rid of it.
07's though i believe u cant though correct? atleast the ss sc's
Old 05-27-2008, 06:28 PM
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Originally Posted by Psykostevo
You need a tune. Your car limits torque below 4k and also has a timing dip right before hand. you are just experiencing a programmed delay in power. Get it tuned to get rid of it.
Pfft..How would you no. You act like you have tuned before.
Old 05-27-2008, 06:29 PM
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Lightbulb

Vvt.
Old 05-27-2008, 06:29 PM
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Originally Posted by invisible
Pfft..How would you no. You act like you have tuned before.
GTO is god!!!!! lol i have heard good things about his tuning
Old 05-27-2008, 06:31 PM
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Originally Posted by Altiery54
GTO is god!!!!! lol i have heard good things about his tuning
Lol, I know, Look at my sig.
I know he is good. He pulled about 20whp on my car with his tune.
Old 05-27-2008, 06:32 PM
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Originally Posted by invisible
Lol, I know, Look at my sig.
I know he is good. I pulled about 20whp with his tune.
i seen that.
Old 05-27-2008, 07:02 PM
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The Jet Chip Performance Module has gotten rid of that "DISAPPOINTING" and IRRITATING" low end lag until 4K RPM in my Cobalt! It also occurs if you do not have the car in "L" (if auto equipped) because any wheel spin kills the performance via the TC system.
Old 05-27-2008, 07:06 PM
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powerenrichment
Old 05-27-2008, 07:07 PM
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Thats the Eco-tak. It kicks in at 4k.
Old 05-27-2008, 07:08 PM
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PE delay sucks...oh wait...i dont have it!
Old 05-27-2008, 07:08 PM
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Originally Posted by Dead Zen
Vvt.
Took till reply number 7.
Old 05-27-2008, 07:08 PM
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Originally Posted by Psykostevo
You need a tune. Your car limits torque below 4k and also has a timing dip right before hand. you are just experiencing a programmed delay in power. Get it tuned to get rid of it.

Bullshit...

The lack of reaction is due to GM's tune for both EPA gas mileage and EPA emissions. There is a big delay as to when PE kicks in and has NOTHING to do with "torque limit".

Psykostevo: Direct question... Having had the opportunity to scan one of your LE5 "toons", why does the Commanded AFR hit in the 9's on a hard pull??
Old 05-27-2008, 07:09 PM
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Umm....its called owning a not so torquey 4 banger....be glad you dont own a civic...they dont do anything down low....on the 2.5 pulley my car sucked ***** down low...i was also rocking the stock timing table but tq management completely gone....our engine just doens't make that much tq...but honestly, in a supercharged fwd 4 banger, it's better to have less tq than more tq to help out with launching
Old 05-27-2008, 07:09 PM
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Originally Posted by JohnnySasakiMGS
Thats the Eco-tak. It kicks in at 4k.
Wish that was what it is I think the person that said power enrichment is right.
Old 05-27-2008, 07:11 PM
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It is the PE Delay. If you get tuned that gets "deleted" lol.
Old 05-27-2008, 07:13 PM
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Or use the Jet Chip Module
Old 05-27-2008, 07:14 PM
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Originally Posted by chevyLSchik
It is the PE Delay. If you get tuned that gets "deleted" lol.
I don't think it gets deleted per say but set to a lower rpm. Could be wrong though. And whoever said VVT that aint it, our's doesn't have that severe change, its continuous. It was mainly designed for fuel milage anyways.
Old 05-27-2008, 07:15 PM
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No, it gets totally deleted. i dont have it at all...
Old 05-27-2008, 07:17 PM
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Originally Posted by BennyHHR
Bullshit...

The lack of reaction is due to GM's tune for both EPA gas mileage and EPA emissions. There is a big delay as to when PE kicks in and has NOTHING to do with "torque limit".

Psykostevo: Direct question... Having had the opportunity to scan one of your LE5 "toons", why does the Commanded AFR hit in the 9's on a hard pull??

OOOOOOWWWW! NO SHE DIDDENT!

Originally Posted by chevyLSchik
No, it gets totally deleted. i dont have it at all...
Brandon is correct. you lower the value, you dont "delete" it.

Last edited by bigworm; 05-27-2008 at 07:17 PM. Reason: Automerged Doublepost
Old 05-27-2008, 07:17 PM
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well it must be MUCH lower cuz you dont feel it at all....you get the power right when you step on it [autos are a little diff....]
Old 05-27-2008, 07:18 PM
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Originally Posted by Altiery54
07's though i believe u cant though correct? atleast the ss sc's
I can tune 07's, and have. The SS/SCs do not have the timing dip or torque management that the 2.4Ls have.

Originally Posted by Dead Zen
Vvt.
Not even!

Last edited by Psykostevo; 05-27-2008 at 07:18 PM. Reason: Automerged Doublepost


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