08-10 SS Turbocharged General Discussion Discuss the 2008 - 2009 Chevy Cobalt SS Turbocharged. On sale since the second quarter of 2008.

Performance mods. Need some ideas.

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Old 05-09-2013, 06:35 PM
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Originally Posted by dcrep06
lmao i dont even have anything to come back with this lol.
i win
Old 05-09-2013, 07:05 PM
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i concur lol
Old 05-09-2013, 07:11 PM
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Never said it wasnt do able on a KO4.


Also the size of the hello kitty decal effects the whp increase, its a area to power ratio
Old 05-09-2013, 07:17 PM
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Originally Posted by blackonblack07
Never said it wasnt do able on a KO4.


Also the size of the hello kitty decal effects the whp increase, its a area to power ratio
entire windshield has the biggest power gains... but the best torque requires full car vinyl... dyno proven bro
Old 05-09-2013, 07:19 PM
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Welcome to Cobalt land
Old 05-10-2013, 11:40 AM
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Thanks for the advise guys! A downpipe will definitely be the next thing on my list as well as a good tune. These with a couple fair sized stickers should get me in the 340 range easy I've never really thought about running E before I might look into doing that in the near future as well.
Old 05-10-2013, 11:42 AM
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Would running a new intercooler with new piping have any significant advantage without a bigger turbo setup?
Old 05-10-2013, 11:44 AM
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Originally Posted by -Tony-
Would running a new intercooler with new piping have any significant advantage without a bigger turbo setup?
The only advantage is that you will reduce the chance of breaking it when you scrape the front bumper.
Old 05-10-2013, 11:48 AM
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Originally Posted by -Tony-
Would running a new intercooler with new piping have any significant advantage without a bigger turbo setup?
ive seen quite a few people say that they have blown stock CPing off when increasing the boost, and one ive seen actually blew out a side in the upper CP! lol. think he was running like 27lbs though.
Old 05-10-2013, 11:50 AM
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Originally Posted by dcrep06
ive seen quite a few people say that they have blown stock CPing off when increasing the boost, and one ive seen actually blew out a side in the upper CP! lol. think he was running like 27lbs though.
it only blewout because he wasnt badass enough... 27.. pfh needs moar boosts so it beats honda fits
Old 05-10-2013, 11:53 AM
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Originally Posted by SmitBag
it only blewout because he wasnt badass enough... 27.. pfh needs moar boosts so it beats honda fits
pft, i beat hondas in reverse bro.
Old 05-10-2013, 11:53 AM
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Originally Posted by SmitBag
it only blewout because he wasnt badass enough... 27.. pfh needs moar boosts so it beats honda fits
Hahahahahaha
Old 05-10-2013, 01:30 PM
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Originally Posted by -Tony-
Would running a new intercooler with new piping have any significant advantage without a bigger turbo setup?
essentially no power advantage. You can argue reliability but meh, people are all too happy to replace a working part IMO. IF by small chance you blow an end tank, then just replace it with aftermarket..
Old 05-10-2013, 01:41 PM
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Originally Posted by m33pm33p
You can hit 320 HP on stock turbo bolt ons easy. 320whp will require things like big turbos.

Gotta build it up before you can max the power.

Clutch Downpipe Tune, then if you aren't happy with 300whp and 350wtrq upgrade zee turbo, and transmission and internals, and and and
320 whp is easily done stock turbo even on pump gas. I made 342 whp 372 wtrq SAE on 93 octane at 26 psi on my car.
Old 05-10-2013, 01:43 PM
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Originally Posted by swix
essentially no power advantage. You can argue reliability but meh, people are all too happy to replace a working part IMO. IF by small chance you blow an end tank, then just replace it with aftermarket..
Not true stock IC heat soaks badly and IATs soar which robs power. On repeated or longer than 5 second pulls a more efficient IC does provide good sized gains.
Old 05-10-2013, 01:46 PM
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Originally Posted by Terminator2
Not true stock IC heat soaks badly and IATs soar which robs power. On repeated or longer than 5 second pulls a more efficient IC does provide good sized gains.
exactly what he said^^ i bigger IC will allow for more consistant numbers than the stock one between pulls.
Old 05-10-2013, 04:22 PM
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Originally Posted by Terminator2
Not true stock IC heat soaks badly and IATs soar which robs power. On repeated or longer than 5 second pulls a more efficient IC does provide good sized gains.
Ok ya you are correct, although its simply my opinion people 80% of the time people dont really take advantage or benefit, they just see that some huge HP car did it so they do.

Does anyone have numbers on that? like how much increase in IAT over say a ZZP IC given the same pull(s)? or better yet real world HP/TQ losses because of this?
Old 05-10-2013, 04:28 PM
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Originally Posted by swix
Ok ya you are correct, although its simply my opinion people 80% of the time people dont really take advantage or benefit, they just see that some huge HP car did it so they do.

Does anyone have numbers on that? like how much increase in IAT over say a ZZP IC given the same pull(s)? or better yet real world HP/TQ losses because of this?
Hahn had data years ago on their site although not an independent test they showed some big losses on 3 back to back pulls on the dyno with the stock IC.
Old 05-10-2013, 05:05 PM
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I think unless you are doing track driving, you wouldn't get much benefit from an aftermarket IC. Especially given that an aftermarket one weighs significantly more than the stock one. Extra weight, especially over the front axle is never good for the car.
Old 05-10-2013, 09:03 PM
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Originally Posted by swix
Ok ya you are correct, although its simply my opinion people 80% of the time people dont really take advantage or benefit, they just see that some huge HP car did it so they do.

Does anyone have numbers on that? like how much increase in IAT over say a ZZP IC given the same pull(s)? or better yet real world HP/TQ losses because of this?
like termi said, hahn has graphs to show a SIGNIFICANT loss of power between first, second and i think a third pull on the stock IC. worth it IMO.
Old 05-10-2013, 09:14 PM
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Originally Posted by swix
Ok ya you are correct, although its simply my opinion people 80% of the time people dont really take advantage or benefit, they just see that some huge HP car did it so they do.

Does anyone have numbers on that? like how much increase in IAT over say a ZZP IC given the same pull(s)? or better yet real world HP/TQ losses because of this?
My own car with stock ic would have the iats rise up to 25* in a matter of one 50-100 pull in 3rd gear. My synapse ic kept it right at ambient even on 0-120 runs.
Old 05-10-2013, 09:16 PM
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Meep

Cobalt 2.0 Performance
Old 05-10-2013, 11:31 PM
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hello kitty stickers or GTFO
Old 05-11-2013, 08:26 AM
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pics or it didnt happen
Old 05-11-2013, 01:57 PM
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Thanks for the advise! IC is something I don't think I will benefit from at this moment.


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