first off, i have a 1986 iroc z28. with a 5.3, and a built 700r4 with 3200 stall. my problems include high idle, studders, weak on power, and dies out.

my mods include Ls6 cam, Ls2 intake, 80mm tb, custom longtubes, egr! delete, Ls1 injectors..all tuned by PCMforless.

ive tried alot of different things, just looking for another option.

-i think i have too much stall
or
-i think iac sensor is bad
or
-tranny is bad

the hardest part about this is the fact that i dont have the dash harness, for my swap, so no dtc connector....for now that is.

any advice is appreciated.

 

Sounds like a vac leak some where, or T body is off adjustment. Is th t-blad complete shut was it drilled more info.

 

the blade is not drilled, i figured that would bring more rpm in idle...

 

i meant to add, the reason i think my tranny is bad is because, the studder i feel is violent...its more of a shudder and buck.

 

im thinking tuning OR vac leak

 

i can give those things another look, and talk to my tuner. but what about the tranny? its not electronic, just the standard analog 7004. i just feel a load on the engine, that is more than usual, and it causes most of the bucking and shudders.

 

Torque converter

 

its a 2800-3200 stall, made by daaco.. should i pull it and try a stock one?

 

sounds like many problems first you need to get into that computer and see whats going on... on another note i have an 86 iroc myself... mind sending me some pics of the build? im gonna do that swap soon after i get back from iraq.

 

sure i will send pm. i also purchased a DLC pigtail harness from EFIconnections...so when it gets here i will be able to tap into the computer. my biggest concern is the tranny, i dont want to have to go through the removal and trying to get a refund..

 

i thought the ls2 intake had a 90 mm opening??

 

it does, but i cant afford one for this build, so i am using an 80mm. lol