2006 Cobalt SS makes 270 WHP!
12-21-2005, 08:11 PM
#77
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Bad GTP how will the stock internals hold up to this mad? i mean rumors have it that the stock pistons can only hold 300hp and the stock head can hold only 270. i also wanted to know how do you set up the MAF translator? is it something anyone can do or do you need software and a dyno?
12-21-2005, 08:15 PM
#78
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Originally Posted by Dman
was the boost bypass mod done on this vehicle? im guessing it was?
also, out of curiousity, what duty cycle are these new injectors running?
let us know when you come up with an update to cutting into the injector harness and the maf...
im interested in this as well, kudos for the numbers with such little done!
also, out of curiousity, what duty cycle are these new injectors running?
let us know when you come up with an update to cutting into the injector harness and the maf...
im interested in this as well, kudos for the numbers with such little done!
60's wil be needed when software becomes available
12-21-2005, 08:20 PM
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I read there was question about warranty. After 16+ years as dealer technician and a couple as a service manager, here is my humble advice on warranty. Visit your local service departments, talk to the service manager, explain what you are doing and ask what HE will accept as maximum amount of modifications you can do w/o voiding the warranty. Some will say NONE! Some will say exhaust, air intake and maybe a slightly smaller pulley, and others will say we won't tell if you don't tell. I've worked at all 3 types and it is better to be upfront about it than to try and hide it. Just my .02 
12-21-2005, 08:27 PM
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Originally Posted by FAST06SS
I tried the By-Pass mod but my boost never changed?? 12.4 stock, 14.8 w/3.0 and 17/w 2.8" Maybe i did it wrong?? P/W was around 19.4
60's wil be needed when software becomes available
60's wil be needed when software becomes available
12-21-2005, 08:34 PM
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Originally Posted by FAST06SS
it is better to be upfront about it than to try and hide it. Just my .02
jmc007...when did you go to a 2.6 pulley??? you running that now? feel the difference?
12-21-2005, 08:38 PM
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Originally Posted by eastcoastz
05 and 06 Calibrations are the same. Friend of mine(GM Tech) proved this to me.
2 : PCM isn't the same part number.
3 : 06 SS seems to get less CEL's from Cold Air Intakes.
4 : Dyno shows that the 06 are leaner (air fuel ratio in the low 12) for the last few RPM's than 05, those 05 were too rich (10.8 of air fuel ratio).
12-21-2005, 08:39 PM
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Originally Posted by Dman
indeed
jmc007...when did you go to a 2.6 pulley??? you running that now? feel the difference?
jmc007...when did you go to a 2.6 pulley??? you running that now? feel the difference?
12-21-2005, 10:04 PM
#87
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Originally Posted by FAST06SS
I tried the By-Pass mod but my boost never changed?? 12.4 stock, 14.8 w/3.0 and 17/w 2.8" Maybe i did it wrong?? P/W was around 19.4
60's wil be needed when software becomes available
60's wil be needed when software becomes available
I have my boost soliniod grounded out at WOT with a microswitch and if I am not pushing down on that switch I get boost pulled at about 5000+ RPM. This is with a 3 inch pulley.
12-21-2005, 11:29 PM
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Originally Posted by BooSSted
What size are our injectors stock? When I got my car dyno'd the guy in the shop said they were Green Bosch Injectors and they were 42 LBS. He has built some of the fastest cars in Toronto so I tend to believe him. I am just going by what he said though, I really have no idea what size they are. This is definitly making me want the GM kit even more now because I see the GM kit being as good if not better when combined with the 2.8" pulley.
Good work boys!!!!!!!
Good work boys!!!!!!!
12-22-2005, 12:41 AM
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honestly, all that stuff is not hard to install. Youll have to know someone that can tune your car, but the maft is a pretty common tuner and you should be able to find someone who knows how to use one.
Rent a pulley puller, splice in the wires, and installing injectors is a breeze.
Rent a pulley puller, splice in the wires, and installing injectors is a breeze.
12-22-2005, 12:44 AM
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Originally Posted by bdwarr6
Im ordering my parts tommorrow 
12-22-2005, 12:50 AM
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Gm stage 2 at dealer cost for me is $525 ish. This is $507 and its 20whp more in my opinion screw gm on this one. Sorry I love gm but 20whp is 20whp and if your not getting a dealer discount id say get this its a hell of alot cheaper. Just dont mix this with many other mods without new pistons, that is what ROb informed me of.
12-22-2005, 07:38 AM
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Originally Posted by bdwarr6
Gm stage 2 at dealer cost for me is $525 ish. This is $507 and its 20whp more in my opinion screw gm on this one. Sorry I love gm but 20whp is 20whp and if your not getting a dealer discount id say get this its a hell of alot cheaper. Just dont mix this with many other mods without new pistons, that is what ROb informed me of.
hey man thanks for answering my question even though you prolly didnt mean to. I guess after this mod you really can't do much unless you swap out pistons. Now my question is what about the head? can the head take this much power?
12-22-2005, 07:55 AM
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the head is fine...270 is a very conservative number from gm, the upgrade head just flows better, thats all really...
my thinking is that they noticed the air flow start to suffer some around 270 and decided that they could make some more mula by offering a upgradable head
my thinking is that they noticed the air flow start to suffer some around 270 and decided that they could make some more mula by offering a upgradable head
