LS/VTEC w/ milled head? HELP!

ASSISTANCE Hybrids & Advanced Aftermarket Engine Performance
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Yea, My b16a head has been milled before… I think the guy at the machine shop will find out how much it has been milled… let’s put it this way… the combustion chambers are not round anymore they have little places where they milled down to where the valves sit… They said it’s probably not much but my question is once I find out how much is milled off… I wonder what type of cams I can run without having things like valves hitting the tops of my pistons… Bye the way I have 11.5:1 JE pistons…

ANY HELP IS APPRECIATED

Maybe I can figure out how much lift/ etc the cams I want have and then how much lift I can use before they start touching… I don’t know.

THANKS.

Harry

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ttt

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What does “ttt” mean?

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To The Top…

It just means you’re posting a message so your thread will go back to the top of the forum so more people will see it and hopefully you’ll get your question answered.

So now… This message will be at the top.

Well… not really. the 2 important ones will be on top cuz they’re from the forum ops… Who might know something about piston/valve issues? hehe

Harry

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If you’re not sure, you might need to check your valve to piston clearance before you start it up.

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Yea… I found out it has been milled .036

Basically… with 11.5:1 compression JE pistons… That leaves me with a compression ratio of 14.994:1

Which… needless to say… is not going to go in any sort of streetable car.

Thanks though.

Harry.

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also… if anybody has a b16a head that has NOT been milled. U know who to call. :wink:

Harry.

mtgrat@hotmail.com

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Originally posted by Aut0tek
[B]Yea… I found out it has been milled .036

Basically… with 11.5:1 compression JE pistons… That leaves me with a compression ratio of 14.994:1

Which… needless to say… is not going to go in any sort of streetable car.

Thanks though.

Harry. [/B]

i thought for every .010=.2 bump in compression. i’m pretty sure so that would mean your compression is a little over 12.1:1

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I dunno I used that compresion calculator on C-Speed. :-/

Anyhow I got Cometic to make me a .064 think headgasket which will make up for everything plus the stock headgasket thickness so I’ll be right where I planned and I can run whatever cam I feel like long as it can run on ITR valvesprings and retainers.

:clap: :clap: :clap:

Thanks everyone.

Harry

BTW, still looking for an OBD-1 VTEC Distributor I NEED ONE BAD LIKE SCHNELL!!! hahaha