Stage 3 Comp Cams....Anyone done it???
01-30-2010, 02:58 PM
#102
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ty, yours is pretty impressive itself 
ya...i just installed my valve springs, we shall see what this changes 
timing it this weekend with the stg2 cam :P
Um, youre gonna need your 2.4 TB and a 2.4 manifold, even though you should really get something better manifold wise if you truly want to take advantage of those cams, you should really get port work or consider buying somebodies already built/ported LSJ head, you MUST get valvesprings, you need to get neutral shafts or some variation of a balance shaft delete, you need a nice long tube 4-2-1 header, higher compression pistons would be really nice, not crazy high but 11:1 would make a difference.
timing it this weekend with the stg2 cam :P
Last edited by NWAE Cobalt; 01-30-2010 at 02:58 PM. Reason: Automerged Doublepost
01-30-2010, 08:13 PM
#105
well i suppose you dont, but its going to be easier then having a seperat dp made...cause its a mid-longtube header
the cobalt community is cheap, 50$ is alot to most
and yes. more people street the car and want the power low and some high, as where people looking for the highest numbers/ best racing perf would sac a lil where you wont use it racing for where you will...aka most want it spread out as where fewer want more up top and sac down low.
look at hatrikstu (sp?) - he has the 4-2-1 and is putting down some AWESOME track times
i have the 4-2-1 and am putting down the highest WHP for N/A 2.2
i dont have a current dyno, as the last time i dynod the afr needed fixing and it was pulling ~20whp from me in timing....but..
with cia 4-2-1 header, 2.5" catless cia dp, 3" cia exhaust, cai, mrz alt & crank pullies, 2.4 tb, 2.4 intake mani, a shaved cyl head (.020" taken off), stage 2 cams and a bunch of supporting mods, i put down 180.16whp & 164.91 wtq
once the tuning was finished i carried the power all the way to redline, but i have not been dynod (car is down right now till timed...added 78lb valve springs)
the cobalt community is cheap, 50$ is alot to most
and yes. more people street the car and want the power low and some high, as where people looking for the highest numbers/ best racing perf would sac a lil where you wont use it racing for where you will...aka most want it spread out as where fewer want more up top and sac down low.
look at hatrikstu (sp?) - he has the 4-2-1 and is putting down some AWESOME track times
i have the 4-2-1 and am putting down the highest WHP for N/A 2.2
i dont have a current dyno, as the last time i dynod the afr needed fixing and it was pulling ~20whp from me in timing....but..
with cia 4-2-1 header, 2.5" catless cia dp, 3" cia exhaust, cai, mrz alt & crank pullies, 2.4 tb, 2.4 intake mani, a shaved cyl head (.020" taken off), stage 2 cams and a bunch of supporting mods, i put down 180.16whp & 164.91 wtq
once the tuning was finished i carried the power all the way to redline, but i have not been dynod (car is down right now till timed...added 78lb valve springs)
So the 4-2-1 will not fall flat up high?.. I just figured with a tune you'd pick up bottom end lost with the 4-1, but what do I know. <-- Not sarcasm. So I'll put down higher numbers with the 4-2-1?
Side note: Isn't a 3" cat-back a bit big?
Thank you for all your information so far, you've been really helpful!
01-30-2010, 08:18 PM
#106
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So the 4-2-1 will not fall flat up high?.. I just figured with a tune you'd pick up bottom end lost with the 4-1, but what do I know. <-- Not sarcasm. So I'll put down higher numbers with the 4-2-1?
Side note: Isn't a 3" cat-back a bit big?
Thank you for all your information so far, you've been really helpful!
Side note: Isn't a 3" cat-back a bit big?
Thank you for all your information so far, you've been really helpful!
and the 3" gets the proper pressures from the 2.5" dp and 2.5" muffler, the 3" is for future expansion and sound
01-30-2010, 08:23 PM
#107
honestly i have not run their 4-1 on this setup, so i couldnt tell ya comparitivly, but i know that the smoother the gasses merge (way better with 4-2-1) the faster they will escape
and the 3" gets the proper pressures from the 2.5" dp and 2.5" muffler, the 3" is for future expansion and sound
and the 3" gets the proper pressures from the 2.5" dp and 2.5" muffler, the 3" is for future expansion and sound
Also, why catless?
01-30-2010, 08:25 PM
#108
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mine isnt stainless, i didnt want to spend the extra cash...not really a show car
i went catless cause i wanted LOUD in your face hahaha, and it was cheaper at the time
cause i got their exhaust custom fit to an existing muffler i paid a pretty penny for install at their shop
i went catless cause i wanted LOUD in your face hahaha, and it was cheaper at the time
cause i got their exhaust custom fit to an existing muffler i paid a pretty penny for install at their shop
01-30-2010, 08:43 PM
#109
mine isnt stainless, i didnt want to spend the extra cash...not really a show car
i went catless cause i wanted LOUD in your face hahaha, and it was cheaper at the time
cause i got their exhaust custom fit to an existing muffler i paid a pretty penny for install at their shop
i went catless cause i wanted LOUD in your face hahaha, and it was cheaper at the time
cause i got their exhaust custom fit to an existing muffler i paid a pretty penny for install at their shop
I don't even think they offer the 4-2-1 in stainless.. I know they do for the 4-1 though, and it's like $550 for the header alone.. But I'm getting ceramic coated so it shouldn't rust.
01-31-2010, 02:44 AM
#118
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as for injectors i was about at the top of the range of stockers, but i would have been OK using them...although since im not done it was a good idea
01-31-2010, 02:59 AM
#119
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01-31-2010, 12:50 PM
#121
My build in a few months will be done.. Until I decide if I want cams, or whatever else.
ARK GRiP cat-back (2.6" piping), 2.4 TB, 2.4 intake manifold, CAI 4-2-1 header/dp with high flow cat, Injen CAI, Trifecta tune.
Should lay down decent numbers for only bolt-ons.
ARK GRiP cat-back (2.6" piping), 2.4 TB, 2.4 intake manifold, CAI 4-2-1 header/dp with high flow cat, Injen CAI, Trifecta tune.
Should lay down decent numbers for only bolt-ons.
Last edited by xxxxsh4d0wxxxx; 02-01-2010 at 02:23 PM.
02-01-2010, 01:00 AM
#123
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My build in a few months will be done.. Until I decide if I want cams, or whatever else.
ARK GRiP cat-back (2.6" piping), 2.4L, 2.4 intake manifold, CAI 4-2-1 header/dp with high flow cat, Injen CAI, Trifecta tune.
Should lay down decent numbers for only bolt-ons.
ARK GRiP cat-back (2.6" piping), 2.4L, 2.4 intake manifold, CAI 4-2-1 header/dp with high flow cat, Injen CAI, Trifecta tune.
Should lay down decent numbers for only bolt-ons.
eventually my head will get ported and such...if i can score a cheap second head itll come faster
Last edited by NWAE Cobalt; 02-01-2010 at 01:00 AM. Reason: Automerged Doublepost
