2270 Deck Height and CR, Pistons sitting proud of the deck, how many shims is too many shims? Options

[vjb206]

Hey folks! I have the bottom-end of my 2270 assembled and spinning freely. Thanks to all who helped me get to this point!

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To quickly recap: I bought the 2257 kit from AA Pistons (78mm stroke, 5.158" rods, etc.). And when I threw a P&C on for a test-fit last weekend, I immediately noticed the piston sitting proud of the deck height at TDC (negative deck) by about 2mm.

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Before I overreact, or buy the wrong stuff, I thought I'd ping the community...

1. Is this normal for a stroker set-up?
2. Can you stack multiple shims when getting up into the .06 >> .09 range?
3. (If no-stack) What's the best place to have custom shims cut?
4. I recall Jake saying using large shims requires lots of advance, anyone have experience here? What am I looking to adjust for upon start-up?

Once I figure out whether or not this is normal (I.E. verifying that I don't have to backtrack), I'll get into the CR questions (just waiting on clear plastic from Amazon so that I can measure my CC volume this weekend) (IMG:style_emoticons/default/biggrin.gif)

Thanks!

[technicalninja]

I'd run 9.5-10 on that cam.

It's a good street cam for that engine (with the proper heads).

cgnj is running that same cam on 10.3!

AS long as he doesn't detonate that will be STRONG in the mid range.

Too small a cam for compression makes more torque down low.

At 9.0-1 that cam will be opposite for you. Screamer up top and less meat down low.

Yours will be less prone to detonate than cgnj's IMO.

It's all about dynamic compression, your engine at 9.0 versus his engine at 10.3 static will have a different dynamic compression ratio. His will be 2 whole points higher than yours with the same cam.

I want to run AS MUCH dynamic compression as I can WITHOUT detonation!

His engine may be iffy on 93, yours should work fine!

I am VERY interested in how cgnj's set up works for him.

The way he's going is the way I want too...