Would this be better than the Vortech unit from RSM for bottom end performance?
i have read that you hit the limiter before you go to full boost with this unit.
i know that the GM one is a roots type
is this just a preference Q or does it depend of driving conditions?
and where can i look at the specs and price for the GM S/C i have tried gmperformance w/o luck...
thanks
if it ever comes out there can be a comparision made until then there can be no comparision
1989 Turbo Trans Am #82, 2007 Cobalt SS G85
But a comparison can be made if you are creative! Ask Airtonics (Jon) he bought a crate engine and put on his own SC from that. I love it and can't wait to do it myself.
i was just into my frendly negihbourhood GM Dealer...took a little searchin' but they found it...the new s/c is in the parts catalog for 05. They told me that its 5400CND list price but could give it to me for 4500.
Just talked with a dealer as well and it list for $3388 (US) but my dealer stated I could have it for $2864. Bad news, still listed as a future part and when he tried to enter an order for me it cancelled automatically.
So, it's there, just not available yet but as soon as it is, I'll order mine up!!!
Eh...old man with a Corvette now...it was bound to happen sooner rather than later right?
JFORCE1 wrote: Bad news, still listed as a future part and when he tried to enter an order for me it cancelled automatically.
Same here...its listed as an 05 pontiac accessory and therefore wont be available until sept.
But atleast we know its really comming....lol
I hear 250 at crank with s/c kit anyone else hear anything?
and also that if GM installs it you keep your power trane warrenty..if you have one left
GM PART # 17800003
CATEGORY: All
PACK QTY: 1 CORE CHARGE: $0.00
GM LIST: $3,388.00
OUR PRICE: $2,845.92
DESCRIPTION: SPCHG PKG
hmm interesting thats what it shows on gm parts direct thats pretty cheap too
1989 Turbo Trans Am #82, 2007 Cobalt SS G85
250 at the crank would be nice. We can only wait and pray
I don't need no stinking SIG. Wait this is one.
DOH!
250 at the crank? I wouldnt think so seeing as how the cobalt dont even make that much, gm isnt going to sell something that would beat an ss, it may be possible to mod it but straight from the factory i doubt this kit will have more than 6-7psi
1989 Turbo Trans Am #82, 2007 Cobalt SS G85
Even at 6-7 psi from what i can gather the 2.0 looses the displacement by loosing stroke...even if we do only get like 190 hp from the kit like the 2.4 guys we should have a little more torque than the ss cause of the increased rod lenght.
I was reading last nite how to make a reliable 250 crank hp....it showed a 75 shot and the s/c...i dont know if it was to be used in conjunction with each other but it reads like the s/c accually makes 250..i'd hardley call any power gain with spray reliable...
anyway heres the link....
http://www.gm.com/company/gmtunersource/downloads/engine%20assembly_stock_to_250hp.pdf
should com in handy in the near future as its a step by step install with pics...pics are good as steps are hard to follow....lol
how is he running 18psi through it the M62 reaches its limit at 14k rpm and the computer limits the boost before redline
1989 Turbo Trans Am #82, 2007 Cobalt SS G85
The kit won't make anywhere near 250hp, I'd say to expect 205-210, TOPS.
If it comes with the intercooler setup that the SS/Redline use, then it should make the full 12psi those cars make. But I'm not sure you can use this kit withOUT the intercooler.
The Eco makes more power than the 2.0 would N/A doesn't it? If so, why would a similar supercharger set up on the Eco not make more power? Unless the S/C setup is different on the 2.0.
I'm glad you guys found the future parts listing, no specific specs though, huh?
The 2.0 is an Ecotec.
2.0 - supercharged (and turbocharged in Saabs)
2.2 - n/a - most popular
2.4 - with variable valve timing, now available
All Ecotecs.
I forgot that the SS/Redline use the smaller displacement Eco...but I can't see approximately 200cc making THAT much of a difference.
im interested in the spark plugs they are using and also the fuel system and what type of rail they are using because in prototype photos it looks like the 2002 rail
1989 Turbo Trans Am #82, 2007 Cobalt SS G85
Rodimus Prime wrote:250 at the crank? I wouldnt think so seeing as how the cobalt dont even make that much, gm isnt going to sell something that would beat an ss, it may be possible to mod it but straight from the factory i doubt this kit will have more than 6-7psi
Rodimus...your talking about 2 different motors. I can show you how it IS possible that you can reach 250 HP crank.
1. Compression: The 2.0 motor is 9:1 compression and the 2.2 is 10:1 compression
2. Displacement: Being that we have more displacement, that will result in more torque.
If you think about it, being that the 2.0 is smaller displacement and 9:1 compression, if it was all motor, it would probably perform as good as an an 2200 motor (i'm not trying to compare the 2 motors as far as how they are made but just by power output all motor). So for example you say it has 125 HP, your talking about 205 HP with a charger so that's an 80 HP gain.
Now take a 2.2 140 HP motor on a 10:1 compression with 10 PSI...it's possible with proper tuning, it can reach almost 250 HP crank (hypothetically).
Also remember your talking about the same charger, the same amount of PSI, with a reflash.
www.kronosperformance.com / 732-742-8837
Kyle Struble wrote:The Eco makes more power than the 2.0 would N/A doesn't it? If so, why would a similar supercharger set up on the Eco not make more power? Unless the S/C setup is different on the 2.0.
That's exactly what my above statement is proving...
www.kronosperformance.com / 732-742-8837
lets not forget about the rod stregth and its threshold, 10psi is pushing it, sure ppl on here are running 18 or whatever but how long can it last, you want something that will last for a long time not just a couple thousand miles
1989 Turbo Trans Am #82, 2007 Cobalt SS G85
Rodimus Prime wrote:lets not forget about the rod stregth and its threshold, 10psi is pushing it, sure ppl on here are running 18 or whatever but how long can it last, you want something that will last for a long time not just a couple thousand miles
That's one thing I DEFENITELY would be worried about.
www.kronosperformance.com / 732-742-8837
rod lenght is where its at i figure...who cares if we get 250hp or not as long as the torque numbers are higher. torque moves mass hp keeps it going...on the 1/4 your under constant acceleration so all you need is torque....in theory....
and yes I think your right Rodimus about 18psi not being very stable...but with the right timing adjustments and some 92 octane fuel(goes w/o saying)....10psi wouldnt be so bad.....no worse than what a 75 shot would do...which is what gm says the eco can take.
if we get 80hp out of it with just the s/c kit...change to a full 2.5 exhaust headder back punch out the cat (I love not having emision laws) and add an MSD...that would be close to the 250...could always add a 50 shot to make sure you got enough.
I guess in the end we'll just have to wait a little longer...we've gotten good at that..lol
Yes and the rods are still functional at 250 HP w/o any issues. Trust me I've done alot of speaking with GM on this. They do not recommend any further upgrades to the engine unless you upgrade your rods/pistons but they keep telling me that the 2.2 ECOTEC will see 250 HP at the crank on 11 psi of boost.
There is also a pulley upgrade to be available that will show 17 psi but hell the S/C took this long so god knows how long the upgrade will take. And yes it will also be liquid intercooled at the manifold. It is very much like the 2.0 kit but we will be running a higher compression and have a larger displacement therfore why we are creating 250 vs the 205 Cobalt SS.
Yes GM will release it making the Cavalier faster than the Cobalt SS, to be honest I really want to see what it does to them though. This also means that you can buy an LS Cobalt and throw on the S/C making it faster than the SS. The downside being you spend more and don't get all the cool SS stuff.
Now on the other hand we are still waiting and as of my last conversation with GM Performance I was told September 26th to make my next call back to check availability, they still don't have a hard set date yet.
And if you want to know what kind of numbers the S/C puts out for real to the ground ask me in a couple of months
. I already have where my ECOTEC S/C dynoed at stock, and I'm hoping to see a good jump from there. Maybe GM will offer an Economy S/C for everybody that doesn't have an intercooler and runs at 4-5 psi for like $2K that would be a pretty easy and smart move if you ask me too
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Asta La Vista OHV!! Defined Parts
I too wish that this kit was intercooled, but if you look at the GM build book that had the install pics, there is a step that shows you capping off the intercooler passages. This would lead me to believe that the kit will not come with intercooling available. I just hope that the cores are in the manifold so that all you need are two hoses and a pump. We just need to compare the part numbers of the Cobalt SS intake manifold to the manifold in the kit to see if they are identical.
"If you aren't shifting, then you certainly aren't driving!"
Does anybody know for sure that the GM SC kit will
NOT come with the intercooler?
Also as this unit requires a reflash I am wondering if it can be used on my 2.2 Ecotec (a Z22SE) in my Opel. I believe over in this part of the world we running with differnet software and as you all know there currently no easy way to hack the ECU! Any opinions?
Power Curve
Speedster wrote:Does anybody know for sure that the GM SC kit will NOT come with the intercooler?
Also as this unit requires a reflash I am wondering if it can be used on my 2.2 Ecotec (a Z22SE) in my Opel. I believe over in this part of the world we running with differnet software and as you all know there currently no easy way to hack the ECU! Any opinions?
The supercharger is intercooled. As far as if the reflash will work on your eco...not sure.
www.kronosperformance.com / 732-742-8837
