I just bought my 07 SS with 7 miles on the clock 2 days ago. I bought this car with drag racing it in mind. Its a very fun car to drive but need some info. How much power can the stock long block take? I plan to make some real power with it hope I dont need to pull the engine out of a brand new car.

 

Is it the SS 2.4 or SS/SC 2.0?? Both engines are quite sturdy. I'm not too informed about the 2.4, but I can tell you that the biggest limitation with the 2.0 is the M62 supercharger, which is in the works for some really nice replacements.

Welcome, by the way. Would prolly be a good idea to post up a welcome thread. Anywayz..Good luck, and happy modding. There's alot of info to be found on here, just make sure to hit up that super swell Search button.

My mistake about the first part of my response..I reread and noticed that it says 2.0...LOL!!

 

I have put down about 325 WHP w/75 shot of nitrous and the mods in my sig.

 

^^^sweet jesus!!!

 

The block is very... very strong in this car... as long as you don't mind swapping pistons, cams, and some head work... this thing can really put down.

 

if you're going big power, you need to change/upgrade some of your stock parts... this car has GREAT potential, and there's more and more parts out for it... but, you have to do it the right way... you can't expect to add 200hp and not have the supporting upgrades to accomodate it...

 

The block is good to 600hp and the crank is to 500. You have to change everything else.

 

The stock internals are good to 300hp. Anything above that would require pistons, rods, etc. As the quote says, the block and crank are strong.

 

crank is good for 550hp

the stock LSJ pistons are the 300hp weak point, rods can support a little more

 

With:
CAI
Stage 2
Headers - Down Pipe - Cat - Back


Thats should be around 270WHP which is about 300hp......i was thinking that stock parts could handle that power.....oh well not

 

Congrats on your purchase! There's a book you can download that tell's you how to go from stock to 1200hp, still using the stock block itself.

 

I'm not positive that those mods are good to 270whp. I'd be very surprised.

 

Here is an ex.

https://www.cobaltss.net/forums/members/ballerss-3638/
BLACK '05 SS/SC
Mods: GM Stage 2, K&N CAI, JBP Control Arm Bushings
261WHP 238WTQ


Looking at this and plus full exhaust it should be over 270whp


I'm buying parts as we speak for cobalt even that i dont have one call me crazy lol but getting one by summer

I want to mod it like this so i was getting scared that it can't handle the power reading some stuff


GM Stage 2
Stage 1 Clutch
CAI
Headers - Down Pipe - Cat - Back
Full Suspension

 

The block itself will handle 1400hp, Most of the internals can handle up to 600....Pistons are cheap POS, they can handle about 300-400...some will argue about that though. If you want to Rev past 7K you will need Neutral balance shafts and a new valvetrain. The tranny is another weak point people are forgeting.... no one really knows the limits but their have been a few that have blown them with around 300whp I believe. Clutch and Axles are also a must for anything past 300whp.... As for the tranny, I think their are a few people looking into building their stock trannys up to handle more power.... What are you goals with this car?? how much power do you want? what are you hoping to get in the 1/4???

 

the pistons will cause a great debate on how much they can handle.. we've seen 330 whp with the stock pistons and have them hold up..

i think its a matter of tuning, where if your getting knock at those HP levels, the pistons will go.

 

You need to get a Torque Brace before you go racing the first time, or else you will need a flat bed out of there. 5 People made that mistake so far in AZ alone.

Then You need to get the Intense Stage 4 Kit without the Computer. Pay someone for a GOOD tune, preferably a race gas tune w/23* top end spark advance. Make sure they know what they are doing.

Over all you will need,
1. Machined Super Charger Snout
2. 2.6" Pulley
3. Oversized Belt Tensioner
4. Stage 2 GM Belt
5. Seimens 60# Injectors
6. Header
7. Catless Downpipe
8. 3" Exhaust w/ Magnaflow Muffler, and Good resonator (so you don't sound like ****)
9. Wideband O2 sensor/gauge
10. Aeroforce Interceptor Gauge
11. Iridium 2 step colder plugs
12. Ported Supercharger Housing
13. Dual Pass Intercooler setup
14. Cobra Heat Exchanger
15. Drag Radials
16. Poly Transmission mounts
17. B-woody Traction Bars
18. Poly Control Arm Bushings
19. 1" Lowered Front Springs
20. Airbox Mod, or Quality Intake
21. Helmet
22. HPTuners software and hardware

That ought to get you started.

After those mods you should be pushing 340 crank HP. :-) And if your butt hurts after paying for it all.......join the club.

 

240 crank.. funny. lol

if u want real power like you say, i wouldnt even mess with the stock supercharger... id do all the other power and supporting mods... most of these have already been said right above me.. but...

1) header, downpipe, exhaust
2) intense control arm bushings
3) dual pass intercooler mod
4) heat exchanger
5) bwoody solid mounts
6) drag radials--will need DSS axles after launching with these
7) Exedy clutch and flywheel combo<-----DEFINATELY will need
8) wideband
9) interceptor gauge
10) cometic headgasket and studs
11) airbox mod or intake

theres other stuff also but thats the basics..

then i would save up for the twinscrew swap or turbo swap (both roughly about $2500) and have a set of 60# injectors and the harness

with the twinscrew or turbo you wont be limited to about 280whp (max) and can easily approach 350whp

 

It was a typo- I corrected!

 

those are some pretty nice numbers for such a small list of mods . Good goin on that one !

 

damn.. if you typoed 440whp i woulda got excited

 

someone on the board with similar setup + meth injection pushed 296whp

 

which is really spectacular....seriously.. but hes done after that unless he does serious head work and revs way higher.. which is why i suggested not doing anything to the stock supercharger.. do everything else first.. and then twinscrew--or turbo (superchargers FTW )

 

What' the point in planning on tuning something that may not be available? When we see the twin screw, we can talk about what it will do, but until then leave that dream under your pillow for the Whipple Fairy to fulfill it.

I would SERIOUSLY suggest a set of Bates Valve Springs. They are good to 8,000rpms, but more importantly will be much more reliable at that 7,000rpm mark.

 

https://www.cobaltss.net/forums/show...&highlight=296 post #5 he ran 296 with C/A Stage IV

This would get you around 296:
(C/A stg V/VI)
C/A custom exhaust
C/A heat exchanger
C/A XTC intake piping
B&m sport shifter
C/A 3" downpipe w/cat
C/A header
2.55 zzp pulley
siemens flow matched 60lb injectors
ZZP Injector Harness
ZZP engine mount
Ingalls torque damper
Intense-Racing tranny inserts
Snow Performance GM STG II meth kit
High Performance axles (thanks Rob)
NGK iridium plugs
Custom Hp Tune
ZZP adjustable tensioner
GM STG II belt
AEM UEGO wideband
Aeroforce interceptor scangauge
C/A dual guage pod
C/A dual pass intercooler setup

 

yea to be honest I wouldn't mess whit porting anything but the head on this car. Eaton is such a nice dependable blower but there just not built for the boost that alot of us desire .