hey everyone, names Jordan. i own a 2006 chevy cobalt, the ls model with the 2.2L in it. im planning on doing a N/A high compression build on the motor, but aside from new air intake and new exhaust, im not exactly sure where to go once i get those things done. any help/opinions would be great.
Welcome to the Forum
It depends on what your total goal is for the car. What compression were you looking at?
The biggest thing is having a good form of fuel management. Without this, there is no point of doing a engine build up.
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not sure, its stock 10.1 compression. im looking for around like 200 hp out of it, maximum of 225... do you think thats do-able?
Jordan Taylor wrote:not sure, its stock 10.1 compression. im looking for around like 200 hp out of it, maximum of 225... do you think thats do-able?
Sorry but I wouldn't be able to state what would be the best thing for you.
www.kronosperformance.com / 732-742-8837
Well Im glad to see there is someone else out there with this motor that is goin N/A. So am I Jordan. I should worn you, that power from this motor naturally aspirated is expensive. In order to get that amount of power outta an N/A ECOTEC you prolly need a intake manifold from GM (fits LS1 75mm TB) which will run about $1,100 before install, custom intake to fit that TB's placement, new head, like you said higher compression pistions (hard to find, thats whats holdin me back. I may have to get them machined), connecting rods, springs, valves, full exhaust (prolly 2 1/2 to let air out but still keep back pressure for off the line), cams, camgears, underdrive pulley, motor and tranny mounts, and then full ECU reflash. In the end its gonna cost me ruffly $5,800 without swapping the actuall block. And thats also without installation and tax and dyno time. But install I can do, I dont have to worry about tax since I'll order online (tax free), and then I only get charged $30 and hour for Dyno time to get WHP numbers, then my buddy does the actuall ECU tune. Msg back if ya need any pointers or send me an email.
-15.733 @ 86.893mph - Slowly Progressing 04 N/A 2.2L Cavalier
Jim Kechely wrote:Well Im glad to see there is someone else out there with this motor that is goin N/A. So am I Jordan. I should worn you, that power from this motor naturally aspirated is expensive. In order to get that amount of power outta an N/A ECOTEC you prolly need a intake manifold from GM (fits LS1 75mm TB) which will run about $1,100 before install, custom intake to fit that TB's placement, new head, like you said higher compression pistions (hard to find, thats whats holdin me back. I may have to get them machined), connecting rods, springs, valves, full exhaust (prolly 2 1/2 to let air out but still keep back pressure for off the line), cams, camgears, underdrive pulley, motor and tranny mounts, and then full ECU reflash. In the end its gonna cost me ruffly $5,800 without swapping the actuall block. And thats also without installation and tax and dyno time. But install I can do, I dont have to worry about tax since I'll order online (tax free), and then I only get charged $30 and hour for Dyno time to get WHP numbers, then my buddy does the actuall ECU tune. Msg back if ya need any pointers or send me an email.
That intake manifold isn't going to benefit...that's extremely large and so is that throttle body.
Honeslty, you don't need all that in alot of cases. It really depends on what you're trying to accomplish.
Also, if you're trying to run anything successful naturally aspirated, RPMs are going to have to be your friend. You'll also need to make sure that the camshafts are capable of supporting the airflow needed at those RPMs. A PCM Programmer like HP Tuners would be ideal as well or even a standalone would be even better.
There is alot that depends on.
One last thing...you DON'T want backpressure. Backpressure is a negative effect on a vehicle. When you increase exhaust diameter, you're decreasing backpressure which is what is gaining you power.
www.kronosperformance.com / 732-742-8837
