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-   Evo X Engine / Turbo / Drivetrain (https://www.evolutionm.net/forums/evo-x-engine-turbo-drivetrain-258/)
-   -   Rods/Piston Combo's (https://www.evolutionm.net/forums/evo-x-engine-turbo-drivetrain/543187-rods-piston-combo-s.html)

EVOhead Apr 1, 2011 12:03 AM


Originally Posted by chetrickerman (Post 9202233)
you are right, and i was corrected, it happens

BUT, if his post is not wrong, then why does wiki say this:


but he says this:



just trying to get the right understanding/answers here as there are different ones here. Not insulting anyones intelligence

I understand you are not trying to insult anyone. Me neither by the way. I just want good info posted for everyone!

I read that statement on another site I found yesterday also and it's only for non-boosted engines.

The simple answer is on a NA car with 9:1 static comp. the overlap from the cams will take away some of the cylinder pressure thus lowering the dynamic comp. to lower then 9:1.

But with a boosted engine even with the lose of some pressure with overlap from the cams, turbo/supercharger engines keep cramming air/fuel into the engine keeping cylinder pressure higher then the static comp. There is only so much room in the combustion chamber:)

I just hope we helped to educate someone who read this thread:beer:

chetrickerman Apr 1, 2011 09:30 AM

well i got to learn some new stuff

MDH-005 Apr 27, 2011 02:54 AM

It's a bit late for me now, but what are people's thoughts on Carrillo Rods?

Would be interested to hear!

Robevo RS Apr 27, 2011 05:46 AM

We got a decision on the new engine. So it will be a 2L with 9:5:1 compression.
Custom CP pistons and Manley rods.

erniebu May 6, 2011 03:16 AM

I'm getting ready to have my motor built and I've been reading up on rods and what they can handle, I always read 'its not the hp that kills its the tq' so that being said, what are the Manley H Beam rated for? I know hp they can go up to 600hp safely but I can't find anywhere what tq they can handle.

Thanks!

murlo26 May 6, 2011 07:11 AM

Just get the I beams...don't skimp.

erniebu May 6, 2011 10:12 AM

yeah I know... but I was just wondering what the H beams were rated for as far as tq goes? I know the I beams are monsters.. what are those rated for?

ETS Michael May 6, 2011 10:37 AM

We run Cosworth rods and Cosworth pistons, never had one problem at 800whp and 9.X track times.

http://www.cosworthusa.com/store/pc/...07_general.jpg
Rods

http://www.cosworthusa.com/store/pc/...09_general.jpg
Pistons 9:1

The motor has been together for almost 2 years now, it may have low miles.. but they are definitely hard miles.

The block it self is stock w/ no sleeves and stock crank.

Good Luck!

Michael

sailorcor May 7, 2011 02:43 AM


Originally Posted by Robevo RS (Post 9274266)
We got a decision on the new engine. So it will be a 2L with 9:5:1 compression.
Custom CP pistons and Manley rods.

Good choice, same here

Robevo RS May 7, 2011 11:37 AM


Originally Posted by ETS Michael (Post 9298743)
We run Cosworth rods and Cosworth pistons, never had one problem at 800whp and 9.X track times.

http://www.cosworthusa.com/store/pc/...07_general.jpg
Rods

http://www.cosworthusa.com/store/pc/...09_general.jpg
Pistons 9:1

The motor has been together for almost 2 years now, it may have low miles.. but they are definitely hard miles.

The block it self is stock w/ no sleeves and stock crank.

Good Luck!

Michael

That was our other choice. But because the compression we did go for CP ( 9:5:1). And from there wasn't really a reason to go cosworth rods anymore. I also have a Manley H beam rods. Stock crank and block no sleeving. Stock head and gaskets. Colder plugs since we will run 104 race gas only. /rally rules won't let you run higher/
here is my set up :

http://i133.photobucket.com/albums/q...0516-00025.jpg
http://i133.photobucket.com/albums/q...0516-00023.jpg


Rob


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