Disappointing news about modifying the Cobalt SS
Originally Posted by FullThrottle
The blower seems OK I have heard that the intercooler core is a little small. So an improvment there will allow a puley change with good results
Mike
Mike
a front mount isn't necessarily needed; it's an air to water intercooler, as opposed to air to air, so just making it bigger would do the trick; worse case the radiator could be made larger.
look at it this way - the evo has an air to water, and keeps it's charge quite cool; they are pushing what, 18psi??
look at it this way - the evo has an air to water, and keeps it's charge quite cool; they are pushing what, 18psi??
The EVO VIII's are pushing 19psi, from what I understand. As for the STI's..not entirely sure..but I was across from a Suby dealership today and watched a truck unload about 5-8 STI's and around 3-4 WRX's...I couldn't stop staring.
The 272 and the SS S/C Sedan at SEMA were running 16 PSI, and there weren't any intercooler upgrades mentioned. It seems that the M62 is capable of producing more boost and making more power, contrary to the article posted at the beginning of this thread.
ive always felt that the m62 was more than capable of makeing the power that im looking for at least...all it really needs is a fixin of the computer and colder air...the rest is already taken care of...
Originally Posted by Dman
yeah...cobalt is bleeding at 12...evo is 18 and i think the sti is something like 21 or something...
as for the turbo vs. supercharger, you can't compare straight pressure; CFM(volume) has just as big or bigger an effect as PSI.
Yes, a turbo will always make more power than a S/C with the same psi and cfm, it might not make more than one with the same psi but more volume.
yup turbo will make more power because sc draws power from the engine, where as turbo draws its power from unused exhaust pressure. but the plus on the s/c u get the power off the line, no lag and a good amount of power.
yeah alot of people hate on sc setups because of the fact that it borrows from the motors power...these days the acutal draw from the motor is really insignificant...but im game for either...
As for the M62 being non-powerful, i was actually thinking of going to the guys at Procharger because they are local and seeing what they could do. Converting the SS to a centrifugal SC and givin it a badass tune should scare the pants and tires off of some of these little sh*its on the road lol the cobalt SS will reign supreme!! As soon as one aftermarket modification comes out, i'm buyin it hahaha. Man i'm gonna be broke lol.
that article is hog wash LOL I am from the Tiburon comunity, our aftermarket uses the M-62 in a setup very similar to the Cobalt SS... on a M-62 we are up to 340 whp at 15 psi,
now i realise your already at 10 psi, but your on a smaller engine that likely doesn't breath as well as my 2.7 V-6, which means you have a fair amount of headroom left with this supercharger
our guys running 340 whp are likely spinning the supercharger twice as fast as you guys are, if not more..
the reason why your intake charge is heating up is that you likely need to open up your exhaust with bigger diameter piping and headers, the blower is working harder then it needs to
as I say this blower can support the airflow required for 340 whp, i can show you a dozen dynos of over 300 whp using this exact blower
if this blower can acheive 15 psi on a built 2.7 with headers( the 2.7 has awesome head flow) it sure as **** can support 20 psi on a small 2.0 Ecotec.........Your PSI is related to how well your motor breathes, your HP is determined by the RPM of your blower
also In the Tiburon world we use Methnol injection at high boost to keep things safe, the Cobalt could do this as well
also we have upgraded the intercooler element with great success
the Stock Cobalt SS supercharger will be able to make over 300 whp with the right mods, whoever said a pulley wont help is on glue, we have years of M-62 experience to back my point
now i realise your already at 10 psi, but your on a smaller engine that likely doesn't breath as well as my 2.7 V-6, which means you have a fair amount of headroom left with this supercharger
our guys running 340 whp are likely spinning the supercharger twice as fast as you guys are, if not more..
the reason why your intake charge is heating up is that you likely need to open up your exhaust with bigger diameter piping and headers, the blower is working harder then it needs to
as I say this blower can support the airflow required for 340 whp, i can show you a dozen dynos of over 300 whp using this exact blower
if this blower can acheive 15 psi on a built 2.7 with headers( the 2.7 has awesome head flow) it sure as **** can support 20 psi on a small 2.0 Ecotec.........Your PSI is related to how well your motor breathes, your HP is determined by the RPM of your blower
also In the Tiburon world we use Methnol injection at high boost to keep things safe, the Cobalt could do this as well
also we have upgraded the intercooler element with great success
the Stock Cobalt SS supercharger will be able to make over 300 whp with the right mods, whoever said a pulley wont help is on glue, we have years of M-62 experience to back my point
I guess true performance from the LSJ will come from those who know, not those who think they know. The article at the start of this story is about 5% truth 95% made up raed it on the internet crap.
The major reasons the LSJ might look terrible to mod is due to lack of parts and R&D. Companies have just started releasing stuff but nothing to really take notice of.
The CAI aren't really major performance parts, especially when they are replacing a part that isn't restrictive. They are released to make money off of us.
And the half ass piggy back computer/pulley are a joke. All they do is feed the PCM bull crap readings to off set for the increased boost. The only true performance gains will come from true tunes.
Until the PCM and be completely tuned for upgrades no one will know what the true potential of the LSJ is.
The major reasons the LSJ might look terrible to mod is due to lack of parts and R&D. Companies have just started releasing stuff but nothing to really take notice of.
The CAI aren't really major performance parts, especially when they are replacing a part that isn't restrictive. They are released to make money off of us.
And the half ass piggy back computer/pulley are a joke. All they do is feed the PCM bull crap readings to off set for the increased boost. The only true performance gains will come from true tunes.
Until the PCM and be completely tuned for upgrades no one will know what the true potential of the LSJ is.
Originally Posted by Maximus
that article is hog wash LOL I am from the Tiburon comunity, our aftermarket uses the M-62 in a setup very similar to the Cobalt SS... on a M-62 we are up to 340 whp at 15 psi
the Stock Cobalt SS supercharger will be able to make over 300 whp with the right mods, whoever said a pulley wont help is on glue, we have years of M-62 experience to back my point
the Stock Cobalt SS supercharger will be able to make over 300 whp with the right mods, whoever said a pulley wont help is on glue, we have years of M-62 experience to back my point
yep.. the post was made by scdyne over a year ago, he doesn't post that stuff anymore since it's been proven wrong now that there are pullies and mods available.
If this whole article is true, then riddle me this, GM is coming is coming out with stage 1, 2 and 3 upgrade kits. If the car/SC is already at full capabillty, And will give a 20 (1) 40 (2) and rumored 60 hp gain then this whole article can't be full true.
Yea i have to agree with fifasf on that. Besides, why would GM make such a nice tuner car and only give it such a limited power range? I think GM is smarter than that, they wanna make the big bucks so they are goin to have thoes stage 1,2 and rumored 3 upgrades.
na no need for a stage 2 badge. i want a sleeper. will to a point. but any way what about maby putting the m90 (not soure if that is the right #) but isant that supercharger larger than ours? and would if fit? just a thought
I dont buy this article for a second, why? because GM is putting at a smaller pulley in thier friggin Staged kit. Why would they do it if it didnt work? C'mon, lets use some simple logic here.



