READ THIS!!!

http://www.cobaltss.org/gallery/2005gmscb/DSCN0840

I take it the 272 concept car doesnt have the pulley upgrade? It gets 272 fromt he aluminum block and heads,exhaust (WHICH IS A MASSIVE 3.5 INCH EXHAUST), and a high flow cat? I just found it interesting. i thought it was a cobalt witht he pulley upgrade and exhaust. i didnt know about the aluminum block and heads

 

our 2.0 has the aluminum block and head. That has 16 PSI so it has to have a smaller pulley, it has a better intake, ram air. It also has a stainless steel header.

 

i still wish i had someone that could fabricate a kit up for my car like that. i'd take the sawzall to the hood right now

 

I think there's a moderator that's seen that car, maybe zinner? But all of that stuff is listed here.
http://www.crateenginedepot.com/stor...arts-C144.aspx

Except the exhaust, why in the world would they need 3.5 inch exhaust?

 

is it a 3.5 pipe or tip? im not sure...... maybe they know something we dont. heck ive never heard of a 3.5 on a average car though

 

3.5 inch piping with 4 inch tips.

 

3.5 inch piping with 4 inch tips ehh?...hehe thats gives me a idea....when my tax return comes in...

 

Isn't 3.5" exhaust a little over kill for our type of application? Unless it's 3.5 Crush Bent (not specified) which may bring it down to 3.25" or possibly 3", right?

I couldn't see going any larger than 3"

 

i would do it just to be outrageous....and see how loud the turbo spooling sound would resonate

 

Guys it's a concept show car so I wouldn't take the 3.5 inch exhaust as some unspoken gospel that 3.5 is the perfect diameter.

 

The BLOWER!! Lol. Yall failed to realize, its a Eaton M62, ours is an M90!

 

No we have an M62 as well on the ss/sc

 

WOW!! I hope your not serious!

 

 

yeah cause everyone knows teh m62 > the m90 huh?

 

*ouch* someone forgot to read the specs of the SS/SC, must of been lookn at a GTP

 

I think there are a few details missing on the spec sheet. Either that or they are quoting HP numbers from the crank and not the wheels

 

one thing i could suggest to explain the incresed hp is our blow off valve. our superchargers have a blow off at 11 psi. im sure that the 272 has no blow off valve.

 

It may not have a smaller pulley. Anyone else notice that they rev it OVER 7,000 rpms!? If you took a stock sc/ss, and took it over 7,000 rpms, you'd gain more boost and power. Just wait untill tuning software is available, we're going to see some serious HP from these motors!

 

It is a bypass valve and both have to have it. Ours release presure at 12.5 PSI that one does at 16 PSI.

 

What are you talking about??

 

It may be running a smaller pulley. Doesn't the stage 2 say 243 ft-lb of torque also? Plus our cars would put out more hp if we had the higher rpms unlocked. Every dyno I have seen for our cars are still climbing 'til the fuel cut off.