New cobalt SS 21psi and only 260hp?

[Griff]

Rumor has it that Chevy is making the new SS very tuner friendly. More than likely its corked well at both ends stock, so throw'n in an intake and cat-back may yield BIG results. Not too different than what was done on the MS3.

Funny how the NA crowd is pointing to Turbo'd Si's for reference... LOL

[Izzy]

Originally Posted by Griff

Rumor has it that Chevy is making the new SS very tuner friendly. More than likely its corked well at both ends stock, so throw'n in an intake and cat-back may yield BIG results. Not too different than what was done on the MS3.

Funny how the NA crowd is pointing to Turbo'd Si's for reference... LOL

I'm actually using that as a comparison because of how our cars are affected by boost compared to a car already boosted from factory.

[KingMarineM16a4]

I did not read responses. Stock turbo motors are always above 14ish psi(on average). My SRT was 16 stock, evos are about 18 stock, sti's are about 15 stock, gti's are about 16 stock. Stock boosted motors are just built like that. Now a aftermarket kit at about 6-8 psi is considered high boost however on stock turbo motors below 20 is considered low boost.

[mitsukaiSI]

all im saying is . . . no matter WHAT the setup is 21 psi is ALOT of boost wether is stock boost or not and 260 is NOT alot of power for that kind of psi. . . especially not for a 5.7 0-60

[Whocares05050]

Originally Posted by mitsukaiSI

my question is why only 260 at the crank on 21 psi?

Actuall boost pressure is irrelevant to how much power a car makes. too many factors are involved when just talking about PSI. 22 PSI on one turbo can make the same power as 11 PSI on another. Trim levels, manifold designs, compression ratios, tunning, and other factors all play a significant roll in determining power levels.

[nayilsi]

I wonder how much theyd make.....with the turbo removed

[c_bongo]

the turbo in these cars is probably the size of my digitalcamera. its like a 14b turbo from an eclipse vs an sc61' 9 pounds out of each turbo is going to produce rediculously different results

[KingMarineM16a4]

Originally Posted by mitsukaiSI

all im saying is . . . no matter WHAT the setup is 21 psi is ALOT of boost wether is stock boost or not and 260 is NOT alot of power for that kind of psi. . . especially not for a 5.7 0-60

Read Whocares reply. I agree with him. On stock F/I cars 20psi is not a lot of boost however a stock N/A car with F/I added to it even 10psi is a lot of boost.

[DBFIU]

Doesn't matter what anyone says, chevy gone done it right. 23k for a fast, tunable, well handling car. STFU and accept it!

- Dan

[Vash2940]

You guys are forgetting about FWD. I'm sure that car could produce 300+HP but there would be no way to get it to the wheels. If it was an AWD car then it would be better. My Altima puts down 270 and I sometimes have a hard time being able to get it all to the wheels.

[Robstunner]

Originally Posted by Izzy

The STi pushes 14.5PSI to get to 300hp on a 2.5L motor. Big difference from the 7-something PSI that Civics push to get some crazy numbers. I'm not a turbo guru, but I do know that most companies with turbo'd cars do run at higher PSI because they know the car can handle it.

Heck, even my Volvo could handle 2x the PSI as a boosted Civic can, but only put out 160hp and 170lb/ft at 12 PSI. LOL.

STi is around 17psi for 300hp

the WRX is 14.5 for its 224?hp

the EVO is 19psi i wanna say

[Izzy]

Originally Posted by Robstunner

STi is around 17psi for 300hp

the WRX is 14.5 for its 224?hp

the EVO is 19psi i wanna say

I just googled the STi, and that's the number a few forum posts said, so I assumed it's true. Or maybe even if I searched STi, it came up with the WRX numbers?

[mitsukaiSI]

Originally Posted by KingMarineM16a4

Read Whocares reply. I agree with him. On stock F/I cars 20psi is not a lot of boost however a stock N/A car with F/I added to it even 10psi is a lot of boost.

I appreciate the responses / explinations but that still seems rediculous to designs a motor from the factory to run 21 lbs and only make 260 at the crank... Would it not make sense to engineers a motor that requires les psi from the factory to make optimum power output? It just doesnt seem right to me at all that they would do it like that

[I_like_cake]

I hear that it is just as fast as the STi. I like it alot, im going to trade my Si in soon so i might get that. Just hope it dont fall apart like my Si did in 20k miles

[I Vtec, do you?]

Originally Posted by mitsukaiSI

I appreciate the responses / explinations but that still seems rediculous to designs a motor from the factory to run 21 lbs and only make 260 at the crank... Would it not make sense to engineers a motor that requires les psi from the factory to make optimum power output? It just doesnt seem right to me at all that they would do it like that

I'm willing to bet a lot of it is due to the turbo they use. Considering it makes power from 2k all the way till redline, I don't care how much boost it's running as long as the block doesn't crack and it's making power. As it is, it's making boatloads more torque and 60 more HP than the SI. I'll take it.

I don't understand why it maters much, anyways. A simple reflash I'm willing to bet will put at least 280+ to the wheels. That's just how things go - turbo'd stock motors are always very de-tuned.

[06Si_LoveR]

Wow they really redefined that thing... ricey wing gone and all. Dare I say it actually looks good

[BobbySi]

Originally Posted by c_bongo

the turbo in these cars is probably the size of my digitalcamera. its like a 14b turbo from an eclipse vs an sc61' 9 pounds out of each turbo is going to produce rediculously different results

[I_like_cake]

Looks great and will smoke a Si no problem. Like I vtec, do you said I bet a chip will get 300+ Whp and run low 13's -high 12's for 500 bucks Ohhh yeah this is the car.. W00t

[BobbySi]

Originally Posted by I_like_cake

Looks great and will smoke a Si no problem. Like I vtec, do you said I bet a chip will get 300+ Whp and run low 13's -high 12's for 500 bucks Ohhh yeah this is the car.. W00t

will beat a stock Si, but not mine

[greenroom1988]

Originally Posted by I_like_cake

I hear that it is just as fast as the STi. I like it alot, im going to trade my Si in soon so i might get that. Just hope it dont fall apart like my Si did in 20k miles

fall apart like your si? what happed to it?