A 2.2 cobalt ls with a kand n typhoon kit, jet chip stage 2, weisco forged pustons, comp cams, 2.4 mani swap, magnaflow exhaust, headers, msd ignition, bosch +4 plugs ,i wanna see what the most hpi can get w/o forced induction no flaming im a newb

 

bosch +4's are crap.....and don't bother with the jet stage 2, get a tune written for the build. Depending on your year, trifecta can tune the car

 

so whts ur question?

how much those mods will yeild? or u have them?

or whats the max u can get NA?

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proof reading ftw

 

The more spark plug terminal in the combustion chamber, the more likely detonation is to occur. There is no reason to run splitfire or bosch +2 or bosch +4 plugs on modern engines.

 

idealy my question really is whats the most i can get from my 2.2 before turning to forced induction. I read on pulstar spark plugs that just for those alone it will add 5 hp, but yes what the max i can get on the 2.2 and what does the trifecta tune do or add?

 

at this point im just going to turn you to the GM build book for the ecotec. have fun. search

 

ok, you have a bit of the right idea but honestly look how much its going to cost you to do that. replace the jet chip with a real tune, the cams for a decent turbo like a EvoIII 16g, and a turbo exhaust manifold for the 2.4intake mani. you then just need to spend a little more on piping and injectors and you have yourself a 200+whp cobalt with potential vs maybe a 180whp cobalt that's close to maxed out.

 

I have to disagree. Although the performance of the 16g is adequate, it's reliability is not, though it is much better than the older turbos Mitsu used to use.

 

its still a decent turbo and you really can't beat it for the price. it costs the same as the cams and brings a hell of a lot more power.

 

buying cams for an ecotec is not something many people should bother with.

 

I'd LOVE to see proof of that...those plugs are nothing more than a gimmick. The only good thing that might come from them is that since the plug is only gonna use one electrode at a time (it doesnt spark to all the electrodes at once) they MIGHT last longer.

 

bosch platinums and up have to much resistance so they will eventually blow out your ignition module or even the coil..pull those peices of **** out

 

alritey then i had one of the guys above say 180 map hp on the ls 2.2 anyother opinions or suggestions on how to build a car to its max with out using forced induction

 

The only way to make a small engine produce decent power is to rev it high. The higher the revs, the faster the rings wear out. This is an exponential increase, not a linear one.

What I'm saying is, long-term, it is FAR FAR more expensive to build a NA four cylinder than a FI'd one.

 

if your absolutely intent on it....neutral balance shafts, new valves 1mm larger, port the head, new valve springs/retainers, this means new headgasket, new head studs, new cams (comp stage II probably), lightweight crank pulley, 2.4l manifold, a fatty intake, and a tune....your talking about $2,000 in the head, another $350 for the balance shafts, another $300 for the crank, $400 on the cams, $300 on the tune, $250 on the intake, and w/e the head studs/gasket cost. upwards of $3600+ and youll see a little over 200hp...

not to mention install on those is a bitch, they all involve getting inside the engine...thats a lotta $$ for a professional install

 

I have some beach front property in Kansas for you too.

 

I would say just build you your engine a little bit and go turbo with tune.

If you wanna get technical, you can make your 2.2 500hp na, hell there's even a GM racing book that shows you exactly how, but like the other guy said, it's very expensive and not worth it.

 

QFT. and this is the very reason why i decided to go with a turbo build instead of a 200+ NA build with a 100 shot of juice.

 

its why i just bought an M62 and intake manifold...ill be at over 220hp for $1500 + $300 for the tune....thats cheaper than just the head on the hypothetical NA cobalt above...

 

n/a has it limits if its your D&D if i can get 150whp i'd be happy and call it a day :p
but if i was f/i, 220whp and i'd be happy

 

150whp is easy. Stroke it, and blueprint it, and get a 2.4l head, and whala, 150whp....

 

the 2.4 manifold alone with a cai and exhaust nets 150hp at the wheels. with the tune you'll surpass that by a few horses. i figure a good setup should net 170hp+ to the wheels.

to put it in perspective i can spank my buddies 05 ser spec-v which on paper would mean i was putting out more at the crank then his 175hp.

 

If after all that your only at 150hp, you truly are stroking it. Second why on earth would you put a 2.4 head on an L61? I/E and a good tune is all you need for 150hp