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Scooter311's Avatar
 
Join Date: Jan 2003
Location: Upstate New York
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Question 96mm High compression p/cs??

Doods N Doodettes
I was wondering if there was a kit available that raised the compression (ie domed pistons) without doing any headwork.
96mm, for a 2.0. Just trying diiferent ideas, is all. Paying the machinist is a bit scary for this one, so if there's an option, then woohoo, if not, then boohoo, it'll be a while before I'm done.
Cheers, and 'Happy Monday"
Jeff

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Old 03-08-2004, 09:30 AM
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I'd like to know too. I want to add some 96mm KB pistons to my 2.0 and get a little higher c/r without having to machine the heads.
Old 03-08-2004, 10:25 AM
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If you look at the combustion chamber, it is small in area with a lot of flat area for "squish." To use any kind of full dome would require more machining that you would like. The flycut is inexpensive. So, flat top pistons are the best moneywise.

Alfred, you can get enough compression w/o machining. Take out the head gasket when you install the KB's and adjust your piston to head clearance, also known as "deck height" and "squish" to .045. I think on the chart that gives you about 8.5:1.

Or you can go to 10:1 with flycuts and join me over on the bench with the broken motors.
Old 03-08-2004, 10:52 AM
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Thanks Zeke. I'm interested in about 8 or 8.2:1 c/r. I figure the motor should make about 100hp with the 96mm pistons and a stock cam. Should be "peppy".
Old 03-08-2004, 11:07 AM
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Only custom pistons are domed... I can design a set but you won't like the price..

as for joining someone on the bench with a broken engine because of 10:1- Its ALL in the combo.
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Old 03-08-2004, 03:04 PM
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Quote:
Originally posted by Jake Raby
Only custom pistons are domed... I can design a set but you won't like the price..

as for joining someone on the bench with a broken engine because of 10:1- Its ALL in the combo.
Or the tolulene laden gas they gave me............
Old 03-08-2004, 05:17 PM
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You guys are funny, I'll hafta save my money. Hey, I made a rhyme!
OK jake, I gotcha - I'll never know if I don't ask...... HOW MUCH? I can't afford it whatever it is, but you know, "knowledge is power".
I suppose I'll check around locally to get a decent price, and try to find a knowledgeable shop to do it. Should I wait to get the P/Cs before getting it done, or will a competent shop know how to do this without them? Much as I'd like to hang with y'all, I think I'll take an early pass on the "Broken Bench Club" HA
Bye
Jeff

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Old 03-09-2004, 04:34 AM
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