i have a cobalt ss with 2.79 tuned vibrant 4-2-1 header highflow cat magnaflow exhaust
and i tested my car against a cobaltss with just stage 2 and tourque damp. and he can spin tire all day and i cant we both have the lsd but we lined up both cars at a 40 roll and hes alittle bit quicker than i am but i have more modds and the 2.79 he drove my car and couldnt get the tires to break free idk wtf is going on y is his car right there and y cant i break my tires loose and he can??????


HELP

 

what size injectors are you running? what tune are you running?

 

i got 42lb injectors i kno i need to get 60 and i got tuned by chuck from the corvettes of westchester

 

is that 2.79 on 42 lb injectors ..you maybe going static over 5500 rpms cause of your duty cycle....and with no cooling mods..you might be knockin and your car will pull timing and you'll lose power

 

i see what ur sayn but its in low RPM's not the high the high i pull like a motha Fer but low rpms i feel like i got no power

 

your car will feel different when you add exhaust

 

i got the vibrant 4-2-1 header high flow cat and magnaflow exhaust ??????

 

your injectors are definitely going static and are most likely dangerously lean, not to mention creating way more heat with the 2.79. do not go w0t again until you get tuned with 60#s. i have seen cars running 2.8 on 42#s with afr as lean as 13.1. keep this up and your injectors are gonna pack their **** and go home.

 

it depends on location too cause i'm in cali.and at 6800rpms with 42's and a 2.8 i was 10.3 at redline

 

im in 11.8 to 12.1 in AFR according to the tunning software and my wideband its in the perfect zone for the car and im almost positive there not going static they will only go static when i hit 7200 rpm thats y i put redline back to 7000 witch it is 12.1 AFR

 

your still going static probly around 6k

 

[QUOTE=SlowBalt_06;2258017]your still going static probly around 6k[/QUO

ok i kno what ur sayn but its in low rpms im having the slow punch as in around 4000 rpms

 

^^^yes. still going static. look at your injector duty cycle and/or injector pulsewidth. i would guess you are way over 20msec pulsewidth and way over 100% idc.
you need more fuel than 12:1 afr especially if you are running a 2.79 with no cooling mods. your IAT2 is probably through the roof unless j00 has mad cooling modz y0.

as for the tensioner, unless your boost is jumping up and down and/or you seem to be getting "flat spots" in acceleration at w0t, you arent gettign belt slip and dont need a tensioner. the stage 2 belt alone is usually good for the 2.8/2.79