hites87

Well as the title says I am trying to determine what size pulley to run. I have a catless dp and fujita cai as of right now. I am ordering 60# injectors heat exchanger dual pass stg 2 belt and will be running e47 custom tune. O btw its a 2005 cobalt ss sc. Any help is greatly appreciated thanks

riceburner

iTrader: (66)

2.8"

U mayy get away with a 2.7" with e47 but idk even if you have all the coolings mods not many recommend a 2.7

advise

iTrader: (3)

x2
or get 80s and a 2.7 on full e85

nhanson

iTrader: (1)

Order 80s if you can.

hites87

80s holy **** do I really need 80s to run a 2.8 do u recommend a dual pass or heat exchanger first

Devin86

I think some ppl with a meth set up have run them alright. I just remeber when i had a s/c looking around for info on size a 2.7 came up a lot but meth was always with it haha

microgab

You only need 80's if you run on E85. If not, 60s are enough :P
And personally I would get a heat exchanger before the dual pass, but thats just me

hites87

So if I run e47 do I need 80 id really like to run the 60s ... im looking for around 270-290 fwhp

Bad-A-SS

iTrader: (3)

80s full E85 2.7in pulley and smile as you beat cars that wouldn't expect it lol

nhanson

iTrader: (1)

Why hassle with mixing? just do full E85

Or stick with a 2.9 or 3.0 and do full E85 on 60s if you get a good tuner.

hites87

Ok 80s and full e85 it is ... wat kind of mileage are you guys getting on e85. I drive my balt alot but maily highway and would like to keep at least 20 mpg maybe 22

Bad-A-SS

iTrader: (3)

Yeah your about right on the mileage just all depends in the tune man to be honest and how heavy your foot is

advise

iTrader: (3)

im about 22hwy 18city with 80s return style and a dw300 on a tvs

so id say MAYBE 24

yup i cant keep it out of boost
too fun lol

hites87

Foot not so heavy now but when I get the tune I know it will probably become very heavy so im thinking im going to do a 2.7 e85 and a heat exchanger

Bad-A-SS

iTrader: (3)

Sounds great man post a video or dyno for us. Maybe a before and after

JapEatr

iTrader: (9)

2.7

riceburner

iTrader: (66)

Hmm maybe i should slap a 2.7 on mine. I got the heat ex, dual pass, opt b, phelonic spacer & meth... No e by me

hites87

Ok will do thanks for all the help

turbosmart4

iTrader: (18)

Hope u are catless lol

Vander Nars

iTrader: (5)

why

turbosmart4

iTrader: (18)

Can't u clog cats like that?

Atleast the stock one does lol

turbosmart4

iTrader: (18)

Just read the op again
Sorry

06blackbalt

iTrader: (3)

2.7, or you can get a man size 2.6 or 2.5 lol!

hites87

No 2.5 or 2.6 yet gotta let my ***** drop a lil more before I get that brave and when I have money saved to afford a new motor

JapEatr

iTrader: (9)

I ran 2.7 on pump gas for years