i was thinking about upgrading from gm stage 2 to CA stage 3
after i get the header an downpipe

but on the site it says Stage #3 : 2.7 ZZP Interchangeable Pulley system , 1 step colder ngk IRIDIUM spark plugs , GM shortened belt , 42# Lucas Injectors , Injector Wiring Harness, Stage #3 Retune ... Est. 65 Hp over stock - 18 psi boost

i was just wondering if 2.7 with 42# injectors r safe??

 

no it is not safe you would definitly want 60's ...2.8 is the lowest you should go with 42's and that really isnt safe either!!!!

 

it comes with 60lb injectors.. it was a typo and he never got around to changing it on the site.

 

ok thats what i thought lol why do they sell the 42's with the 2.7 pully tho? /shrug

 

and the arguent ... 2.8 with 42's is really ok as long as you're tuned properly.. if you have a commanded afr of something rediculous like 10.8 then yes you will be killin the injectors..
I ran a 2.8 on 42's for a while.. know poeple running a 2,.7 on the gm stg II tune,., is it a good idea... NO.. but for some reason the cars haven't blown up yet

read my post... it was a typo

 

ah ok fiqured it was a typo but had to make sure thx alot

 

no problem

 

what should my afr be for 60's and a 2.6?? or just with the mods in my sig???

 

I like to run safe in the 11.8 and under range.. anything higher than that on pump gas and you're looking at some knock and trouble

 

ok so about 11.8 and what if i am running higher octane like at the track???

 

you can either do on of two things.. lean it out to @12.6 or increase timing at the same AFR by a few degrees... but only do one or the other.. .not both.. or watch your motor go bye bye

 

lol alright thanx for the info man

 

hey sorry to side bust or whatever you call it but how long does it normally take to get the pcm re-tune???

 

like 30 mins about!!!

 

if you send it in to C/A it usually is a three day turn around.. meaning if you send it express it gets tuned.. and put back in the mail that day express to you

 

oooo lol i thought you were asking if you take it to the dealership!!! lol my bad

 

haha. thanks alot guys. i'll always wanted the stage 3 but the 42 lb's scared me away.

 

Not safe i agree but man that cobalt would run hard.......Than KABOOM

 

just to let everyone know, i called CA and he said stage 3 comes with 42LB Injectors.

 

who did you speak to? I know Kenny changed them to 60's I"ll talk to him today and make sure he updates this