Would a lightweight harmonic balancer and/or lightweight flywheel help?

 

All that money and work for 180hp.. makes me wanna shoot myself in the face lol

 

I'm checking out the ecotec build book and Rousch & GM racing made a 325 hp N/A ecotec.

 

Choosing to gain power by building NA and having the choice of doing m62 (boost being cheaper and easier) is like a hot chick flirting with you in the bar but you blow her off to go after the fat ugly chick thats playing hard to get

 

Like I said, it's not all about power and money. I'm not looking to make the most powerful EcoTec in the world, I just want to build an NA L61 that can be taken seriously on a track. Is that so wrong?

All I know is that much custom work will be needed to complete the build. A lightweight flywheel would be useful, but it would have to be balanced for the crank, unless you'd get a whole bunch of codes and a horrible running car. From what I understand, boring the cylinders would be useless, but stroking it will yield fair amounts of torque. 13:1 CR pistons. Oversized valves and upgraded valve springs would help it rev. Custom ground cams. P&P is a must. Possibly upgraded injectors, fuel pump and meth. Other things like balance shaft deletes and lightweight pullies will reduce power loss. It's mostly theoretical stuff, but the possibilities are vast. 200whp+ is attainable.

 

Stock lsj, about 200hp with sticky tires and a GREAT driver is lucky to run 14 seconds. You will have shorter gearing and less weight, no cigar for 12 seconds though. sorry

 

Check out the ecotec build book for some stuff that they have done for their N/A build.

Theirs was bored out but it had unimpressive amounts of torque.

 

Tisk tisk. No faith. With $40k+ invested, it better run 12's lol

I'm curious to know what they did to to come up with 325hp. No way it was the same engine, unless it was juiced and running on rocket fuel.

 

It was bored, custom cams, adjustable cam gears, bigger valves etc. also revving to 9k

325 on e85 and 340 on methanol is what it claims

 

It won't be. You can dream and be wishful all you want but the 400whp turbo and supercharged cobalts have enough time getting respect on the track. Your 14 second cobalt is going to be ignored.

 

Actually, it's a G5

 

Don't waste your time. You're just dreaming and wasting everyones time even talking about it.

 

Playing the badge game won't get you any more attention.

 

See it's comments like that that discredit you and make no one take you seriously.

 

lol at spending 40 grand, how did no one else find that hilarious?

you seem to know exactly what to do not taking any advice on here, let see some build progress then

 

I didn't come here for fame or recognition, I just wanted to build a fast car. Any and all advice is welcome. Yes, I have already looked into this and I have explored many angles. However, I am still learning and am always open to suggestions and recommendations. Telling me I'm wasting my time and to give up are not helpful suggestions, so forgive me if I ignore these comments.

But I'm not mad. I'm still as open and willing as I can be. If people want to be supportive, great. If people want to bash me, go ahead. It won't stop me from doing what I want to do. Still looking forward to being a part of this community and the passion that we all share.

 

You won't be building a fast car. Just a car that's not as slow as a stock.

Most of us start with more hp than you will ever realistically reach.

Sell your G5 and buy a LSJ.

EDIT - Nevermind. Don't buy an LSJ and go buy a Civic. You'll still be faster than your car will ever be and you won't be on our forums.

 

Not sure where the 40k number came from but give me 40k to work with and I'll build a 1k horse car.

 

Yes, I've heard that before aswell. Thank you for your advice.

I don't intend to spend that kind of money, it was just a quote.

 

So much hate lol almost every person here spends money to make their Cobalt faster, but it's still a Cobalt.
So what if he wants to build NA? Everyone boosts, it's easy, played out. Something different should be welcomed.
Let him claim what he wants, spend what he wants, and if/when it doesn't work out, then that's his problem.

 

We are just trying to help but he wants to do it so it's whatever

 

Wow. Okay, since I seem to be such a nuisance to you people. How's this? I'll stay off this forum and out of your hair. When I have a dyno sheet, I'll come back. 200whp or not. Fair?

 

Tom's build, while it was good, definitely didn't cover every area. There's more to be had out of these motors, we just need people willing to push them. Cobalt crowd is too damn cheap to really try anything.

 

you're confused on why you are getting hate?! You come on here talking about spending $40k+ on a car you probably paid $6k for and will "hopefully run 12s".
You are getting hate because you are coming off like a complete idiot.

I see this going 3 ways.
1st. The OP keeps being ignorant and spends thousands of dollars on bolt-ons and other stuff just so he can make 175whp and then realizes that the L61 is a terrible engine to go with if you're trying to make a fast car and then sells the car completely and kicking himself on how much money he wasted.

2nd. The OP takes everyones advice and gets an M62 but then ends up not installing it because by the time he gets the whole kit together a ton of time has gone by and now he wants a different car.

3. The OP goes the smart route and just buys an ss/sc or ss/tc.

 

It's okay, I really don't mind people voicing their opinions. You have every right to. I intend to do something that hasn't been done before. Forgive me if that doesn't sit well with a few of you.