jbentley31690

Ok first question wats the safest and highest psi of boost u can push on a stock sc? Wat mods can I do so I can make the boost higher? Has anyone heard of hp tuners and wat can the standard pcm suite control and mod?

Sry know nothing about sc but a lot bout TC lol

user 72239

iTrader: (4)

Thats all relative to what your goals are. Some have pushed the stock SC to 20+ psi. it is out of its efficiency range around 15 psi IIRC. Its all done by changing pullies on the Supercharger. The lower the pully, the faster the supercharger spins creating more boost. however, you also create a ton of heat. so that needs to be mitigated somehow. HP Tuners is the primary tuning tool for Cobalts. There is also Trifecta, and a lot of argument about which one is better. What are your goals?

jbentley31690

I basically want to push out around 300to 350 hp

jbentley31690

And hw does hp tuner standard pcm suite compare to the diablo sport predator?

jonathan923

iTrader: (2)

300whp you mean? unless you want to do some head work, decently large injectors, very small pulley and E85 or nitrous then those numbers are quite obtainable with the m62. If not then up grade to a tvs and 300whp mark would be much easier and less of a hassle. just more money

Superbalt06

iTrader: (6)

Smaller pullies don't necessarly make more boost. If you add a smaller pulley and a less restrictive exhaust it will probably stay the same. The more restriction you have the more boost. You should measure the air flow opposed to the actual boost level.

jbentley31690

Wats an m62 and a tvs

jonathan923

iTrader: (2)

m62 is the name of your stock supercharga! and TVS is your stock superchargars Daddy

jbentley31690

How much do they run and can I just throw it on and run it or dobu need anything else with it?

Hockeyman

iTrader: (4)

Install 3" intake, Install 1" exhaust.

i'm sure you will get 20psi haha.

But to be honest, please do some searching around on here. Lots of good information about how people get to your power goals.

jbentley31690

And wat should my Afr be at wen tuning it?

jonathan923

iTrader: (2)

a used tvs would cost you somewhere between 1200-1600 depending on miles and seller. you will also need to upgrade, injectors, id say a downpipe at least, and some cooling mods. If you have acess to E85 then your golden. Just make sure you have a good tuner(LSJ familar) near you or able to tune you. WOT afrs once tuned should be somewhere in 11.5-12.3 max range. everything else depends on your tune

jbentley31690

Wat type of tvs sc should I get and is there any cheaper sc available lol short on cash

jonathan923

iTrader: (2)

theres the mp90 but i think the price is about the same as the tvs if not more. and i think your better off staying with the m62 and just lower your pulley size, upgrade to bigger injectors and get a catless dp and tune. start there lol

jbentley31690

Wat size pulley should I Upton and wat can I turn the boostbup to?

jonathan923

iTrader: (2)

you cannot control boost on your own on an sc car. boost is measured by pulley size.

the lower the pulley the higher the boost you get. but the bigger the fuel you will need which is why you also need to upgrade injectors when you drop in pulley size

sjc0013

iTrader: (6)

If I were you, I would start small and work your way up. If youre ballin on a budget, start with a stage kit and tune and continue modding from there. You aren't gonna see 300-350hp on the m62 unless you drop some serious cash on some serious mods.

Also, keep this in mind. The smaller the pulley, the more heat. The more heat, the more cooling mods you are gonna need to drop money on.

jvirginillo

iTrader: (7)

Read this first -


Modification recommendations for 2.0L Cobalt SS or Ion Redline | ZZP News


Then you will begin to understand what direction you might want to go.


I started with a Trifecta tune and Cold Air Intake. Got some power

Then 42# injectors and 2.9" pulley - More Power but more heat (good power when SC is cool and sluggish when hot)

Got header (Badmab shorty) different sound maybe a bit more power (heat still an issue)

Got 2nd Heat Exchanger, Option B and replaced Intercooler pump. No more heat problems = more Power from mods.

Also got Methanol injection (to be installed) for more power. (added cooling of intake air)

Need to upgrade injectors to 60# and going to 2.8 as well

Along the way need new clutch (more power = chance of clutch showing weakness)
Also upgraded transmission mounts and added an Ingalls Stiffy to avoid wheel hop which is bad for axles amongst other things.

How did I learn all this. READ READ READ articles.

sjc0013

iTrader: (6)

Yes, research is your best friend. Read this as well. https://www.cobaltss.net/forums/2-0l...-guide-217195/

IonNinja

Step 1) Visit the engine section for your car

Step 2) Read the stickies at the top of that section which answer all of your questions

jvirginillo

iTrader: (7)

Good point I forgot about that one.

Supersonic19

I just purchased a 2006 ss sc that has 60 lb injectors and a 2.7 pulley on it . It has the the stage three kit . And runs coolant temps between 180-200 . It has a 2.5 inch magna flow cat back and zzp down pipe . It runs about 18 psi of boost . It runs great . But I don't know if it has new cams in it. I have contacted a professional macanic And friend. But what should i do if there isn't aftermarket cams? Down size pulley and retune?

VictorSS

Hey I have a question before your ic pump replacement did u lack boost and hp

carstedt

iTrader: (1)

ditch the m62 and go TVS ull b much happier