Tarheel62592

iTrader: (3)

Which cooling mod should i do first? and which one is more effective?

mexi_loco

iTrader: (7)

you don't really need meth with just a stage II package. Although, if you get wideband, you should get someone with HPT to retune you to lean it out a bit and bump the timing some.

But to answer your question, dual pass would be better in your set up.

Tarheel62592

iTrader: (3)

well i plan on going to 60's and a 2.8 soon so i want to eventually do it

05Slowline

iTrader: (2)

dual pass

Tarheel62592

iTrader: (3)

ok well do you need option b with dual pass? and how do you install?

metalmedic

iTrader: (4)

tarheel.... how do u like ur ottp h/e???

EXsoccer1921

iTrader: (14)

single pass!! a grand total of only $149. more than dual pass.

http://www.zzperformance.com/cobalt_...1163&catid=188

Tarheel62592

iTrader: (3)

Its pretty nice, the only complaint i have so far is the drain plug is an absolutely horrible design, but its better now that i plugged it.

Edit- and what about option b without dual pass?

mexi_loco

iTrader: (7)

option b is just another coolant tank reservoir that replaces the stock intercooler filler neck. Essentially it will allow you to run more coolant into the endplate and h/e. I still say you should dual pass, but make your own. It's not that hard, and there's even a how-to on here some where.

Tarheel62592

iTrader: (3)

i dont have the tools to do something like that, and i wouldnt kno how to install. I would probably buy one and try to find out how to install or get some one to do it. But would i see added cooling benefits from the just option b or does that need to be with the dual pass to really work?

06SIBLT

iTrader: (8)

Dual pass and option b that is the way to go... you get directions on how to do it with the kit this may also help

https://www.cobaltss.net/forums/advanced-performance-modifications-130/cobra-he-gm-dual-pass-option-b-installed-60809/

rnjmur

Meth is more effective. The dual pass makes a big difference in IAT2, as well. With a 2.8 and 60s a dual pass sould be fine, though with meth you would be able to run more timing and get some more power. If you are ever thinking of going TVS or smaller than a 2.8 I would definately go with meth. If possible, I would get both dual pass and meth but I know that isn't always a possiblity.

If you go dual pass, get the option B. If you don't, it will be a BITCH of a time trying to bleed air out of the system.

Tarheel62592

iTrader: (3)

Im gonna do both, its just a question of which first and which one would be more effective for the time being, as in while on stage 2.

Bluelightning

iTrader: (8)

Just go dual pass then meth even tho im doing it the other way around haha. With meth you will need to tune. A dual pass you wont and it's the cheaper thing to do

Tarheel62592

iTrader: (3)

Is there a noticeable difference with opt b and dual pass?

ls1fbody

You don't make more power, but it helps stop heat soak, allowing you to keep the power you have...

Jn2

iTrader: (1)

dual pass will help with lower IAT's which will allow for more timing, option bw ill just make bleeding the air out of the system easier, so dual pass is where you should spend your money, i run dual pass with no opt.b...although i am about to do the option b thing bc i want a easier way to bleed out air

Tarheel62592

iTrader: (3)

Ok sorry i feel dumb for all these questions but what exactly is heatsoak? and opt b also allows you to hold more coolant, correct?

Bluelightning

iTrader: (8)

If you dont ask questions, you'll never learn. As you do a pull with you're car you're intake air temps will rise. As you're intake temps rise the computer will pull timing to prevent any engine damage thus slowing you down. The more cooling mods you have, the lower you're IAT2 temps and the more HP you can keep to the ground. Yes option b holds more coolant

Tarheel62592

iTrader: (3)

lol thats the way i feel but alot of people get annoyed by so many questions haha is there a way to rig up my own option b tank and everything? i feel like i could get everything else at the hardware store if i could get my hands on the tank

rnjmur

When I had my SS/SC I bought the tank from crate engine and put my own "kit" together.

Tarheel62592

iTrader: (3)

Can you give me a link to this tank? i cant seem to find it

MP Cobalt

iTrader: (4)

In my opinon. Meth and Dual Pass do both

Bluelightning

iTrader: (8)

Oh absolutley. Do meth, dual pass, extra heat exchanger and option b. But i think he wants to know which one to do first

MP Cobalt

iTrader: (4)

well yeah, dual pass first