wanna build my 2.2 up for more boost!
 

Wiseco Pistons Eagle Rods Chevy Cobalt Ecotec 2.2L L61 - eBay (item 270620000869 end time Feb-05-11 13:08:53 PST)
I made them an offer for 700. I'm hoping they'll take it. My question for you guys is what else do I need? I'm going to get a cometic head gasket and arp headstuds for sure. What about the acl full engine bearing set it recommends to get? or am I better off getting the clevite main bearings and rod bearings?

either or for the bearings..and sleeve it if ur gonna go high boost..ive seen way to many crack a sleeve and are left with nothing

You could contact zzp and get a build with a genII block.

id also do some valve springs if u havent done them already and clutch

I just want like 350 for now. Do I need sleeves for under 400 hp?

I have a spec stage 3 clutch I still need to put in.

you could follow my build cuz i'm doing a whole motor build from bottom to top.

no u shouldnt need sleeves for 350hp just make sure u dial in ur tune

If your an 07 u already have gen II block, with a good tune your sleeves should be good

For the pistons should I keep the compression ratio stock or go with a lower compression? and bore size the same as stock or a little bigger? This is the first engine i've ever built so I wanna do it right the first time.

You want the 8.9 comp, less compression more boost. Stock size will be fine for turbo, less machining as well

stock bore 8.9:1 is what u want man...and good call bragdon about the gen 2 block

How much did that run you?

Did you guys do the engine work or have a shop do it? I'm kind of nervous to do all this myself but I don't wanna get raped on labor charges either.

It was a while ago when I got it but I believe I paid 400 even for it... adam at thmotorsports hooked me up

im 19 and i did mine all myself and it was my first time doing a motor lol i dont have all that money laying around for labor...i suggest a lottttttt of reading up on how to properly do it and u will be good to go Just follow torque specs and directions PRECISELY and dont half ass it. Only thing i paid for was sleeve install, valve install, and haveing the crank and stuff done obviously because i dont have the tools to do it

Sweet that's what I wanted to hear! I've never done anything like this before either. I had the valve cover off to get it powdercoated and the oil pan to get the oil return line tapped but that's the most i've done is see the inside of it i guess.

I disagree stock compression is better. More boost is alright but I'd like to keep a driveable car with very little loss in torque. A low compression with a large turbo that is out of boost drives like crap there a dog down low. Not to mention, the stock compression will help decrease spool time.

Did they take da offer for $700?

Then you better have a real good tune, much safer with 8.9 TURBO pistons. The stock comp wiseco's aren't meant for boost. the 8.9's are specifically setup for boost

Thank you sir

that's a negative but another member on here, stenguyen or something like that, said he got them from the same company but not through ebay for 700 so I sent their sales department an email. If not i'll pay the extra 80 bucks I guess.

take a ride in my car and you will change your mind real quick haha i still have plentyyy of torque

He emailed me back and said the lowest he can do is 750 shipped so i'll be getting them soon just trying to figure out what compression to get

Hahahaha I can't believe you just said. They are a forged piece alot stronger than our factory cast piece. The specs between the 2 are almost identical ringland spacing, wrist pin bore. The difference is compression. I like not having to run the same amount of boost to reach a horsepower goal and reaching full boost earlier.

Kx yhou might be right but take into account we have displacement on our side this helps out. But drive a high compression big turbo and its a whole other animal. Adn how much lag does your turbo really see? I bet your not out of boost often.

Its all personal preference but you need to truly understand the difference before you say one over the other. such as most tuners prefer it due to the ease of tuning, and it allows for a large safety threshold for knock.

ive rode in a big turbo high(er) compression car and yes there is a difference i will give u that. My car has an s256et turbo so yes im out of boost quite often and my car doesnt bog down at all. But yes an big turbo car that wants to run boost runs 8.9:1 95% of the time thats the entire purpose of companys making these pistons are for forced induction.

There are other guys on here that have stock 10:1 but i personally wouldnt run those without meth and veryyyy good tune.

When i get on my car though it is an animal and plants me in the seat pretty damn good on 25psi so i have all the torque i need for a 4 banger daily driver all while still getting good gas mileage and not so much different car from stock while out of boost.

yeah with a gen II block you can run boost safely without sleeves. aluminum blocks ftw! The lnf has a gen II and can boost 27 psi easily.

what about with e85 and a trifecta tune? I think i'm going to go with stock compression but i'm still open to suggestions. i have the same turbo as kx but mine isn't the extended tip.

The design is actually different for the two. Stock are flat top and 8.9 is dished.

honestly if u want a suggestion take mine especially since we have the same turbo mine just has a bit more pull up top. But my suggestion is 8.9:1 due to it being safer and it daily drives just fine.. if u want to talk ricer numbers my 60-100 is 3.8-3.9 seconds so she has some balls without a doubt and thats low compression so i have all the torque i need

how much horsepower are y'all seeing in your cars? and how much boost are you running?

25psi and i have never been dynoed but i pull a small amount on my buddies srt4 putting down 409hp dynoed

I'm not seeing any boost yet. Car goes into Werks Feb 15th

That's exactly what I said(ie. compresion difference), but you stated it wasn't made for boost and that statement was completely wrong.

Kx your right most due but do you understand why? Its not because you have to in order to run a large amount of boost, its for safety reasons. Its parts of the reason most factory forced induction come with low compression stock. Its all centered around the limitations of your tune and fuel, low compression allows you to run more boost and more timing with a larger safety net in case of knock on pump gas. When we through alternative fuels into the mix though alot of this can be thrown out the window, e85 and hybrid pump/race gas mixes change the game. There is logic behind both. Its all personal preference for the cards you are dealt.

Ill probably email them too then

I gotcha man haha I'm not saying ur wrong at all and my biggest persuading point was that it is safer lol I said if ur tune isn't spot on that things can go bad quick but ya you can do either or just my opinion is to go lower compression for the multiple reasons I mentioned the biggest being extra safe and him having an extremely low chance of breaking something once he would be fully built

man another person who is going with the same deal i got. only if i didn't tell anyone lol
i should tell yall to refer my name so i can get something out of it.

do you have any vids or pics of your car

If u pm me ur number ill send u a vid and a few pics

i wanna see vids too

Ya I wanna see pix and videos too

im trying to upload to youtube...its just an 8 psi pull..i have no vids of 25psi but u can still tell shes pretty quick. Dont mind the flashing CEL its fixed now and was due to my cams