Thread: Big bore VVL input needed

I know there are a few 90 & 92mm builds floating around, but has anyone pushed the limits and tried going 94mm? I know the head and block would have to be o-ringed but what else would stop you personally from going that big?

The 90mm power enterprise head gasket with some machining is the best gasket I know of so far to going that big. Any other ideas or suggestions?

I would really like some feedback from you guys going big this year.

Id talk to charles.. I know he has gone 94mm and I believe it was w/o being ringed. Its almost scary to think about going that big to me haha. Just seeing how close the cylinders are at 90-92 is crazy.

But I guess if you o ring the block/head it would be a lot more comforting..

i think 92mm is around a 2.3 anything bigger is just crazy, at least to me it is. when i get funds ill start my 2.2

isn't 92 still iffy because maxworx said they recommend going to 90 and there gasket is 91mm i believe. 94 is douable if you seal it the right way tho.

no one has publicly shown a 94mm bore much less done one without o-ringing.

You would have to oring and put the head on dry there wouldn't be enough material between cylinders for a head gasket to seal.

it's not a very good idea.

If i could do it over again i would do a 16ve stroke 92mm bore o-ringed with 12:1 CR slipper skirt pistons. This would maximize everything about the VE motor and let you actually make power to 11k rpm with less stress than a 9krpm 20ve.

^^^ thats what i have planned, something along those lines

I think the motor he did was o-ringed, I will call him in a few and see. That madman says "go for it" to everything, that why I wanted other opinions lol.



92x86 would be a small 2.3

92x92 or 92x91 is where you want to be.



I have their gasket here and it looks like it has enough to seal a 92. I remember someone in NY having a 92mm with this gasket.

92mm is fine

You know my opinion on this

Fine for the original build. This one is for the requirements you sent the other day

making moves sir