Runs wierd after high speed?
#1
Runs wierd after high speed?
Hey my Cobalt always stutters and has extremely slow pick up after i break 100mph. This always happens and I dont know why and will do whatever is needed to fix it. For example: I brought it up to 110mph and then slowed down normally. 1min later at the light was challenged to a race and tried to launch @ 3000rpms and i went off like a turtle and felt like i was in my moms santa fe trying to catch this guy. Please help and thanks!
#2
Hey my Cobalt always stutters and has extremely slow pick up after i break 100mph. This always happens and I dont know why and will do whatever is needed to fix it. For example: I brought it up to 110mph and then slowed down normally. 1min later at the light was challenged to a race and tried to launch @ 3000rpms and i went off like a turtle and felt like i was in my moms santa fe trying to catch this guy. Please help and thanks!
What prize do I win?
#6
#7
I didn't see where it said 95 degrees . But yes people with Lnfs are lucky. they can put a aftermarket exhaust with out it sounding like a fart can.
#8
My guess is that he did a hard pull, sat at the light and heat soaked it more and then the car pulled all timing.
OP, you need to log IAT2 temps
#9
Ok so i guess i should of said how my car has the zzp stage 3 kit dual bypass zzp ful exhaust 2.8 pully and so on. It is 90-100 degrees out here but this has also happened in the past and at night when it wasnt so hot just not as severe. not sure what an IAT2 is, nor what you mean by heat and soak, sorry. I dont have a IAT2 gauge (after a quick google search of what it was =))
#11
that is what i have not sure what the option b mod is I was looking into it but than forgot about it awhile back. but the heat exchanger is def on my car lol
#12
#16
I guess I can do that but I was looking for a point of reference like where the white option b piece usually goes so I know where to look for it. Good thing you said that tho, I might have started looking in the trunk
#21
ive never done it. but seems pretty simple . I think there is a How to in the How to section.
#24
Joined: 05-18-11
Posts: 39,848
Likes: 87
From: West Chicago, IL
Option b is kind of a pain to install but easier than a dual pass. I got a thread on it that a lot of good member helped me out in; lots of good info in there.
Basically you need an aeroforce multigauge. Monitor you Intake Air Temp 2 (iat2) which is the temp in your manifold/post supercharger basically. If the temp is above 100 its not a good idea to beat on the car. It starts pulling your timing which means power. Hence when its nice and cool out or on your first pull the car feels a lot stronger.
X2 on checking the i.c. Pump too.
Basically you need an aeroforce multigauge. Monitor you Intake Air Temp 2 (iat2) which is the temp in your manifold/post supercharger basically. If the temp is above 100 its not a good idea to beat on the car. It starts pulling your timing which means power. Hence when its nice and cool out or on your first pull the car feels a lot stronger.
X2 on checking the i.c. Pump too.
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