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What type of spec are you looking for?

Vnt


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1997 Prelude (Non-Sh) Eucalyptus Green "TEAM ALL SPORT RACING"
AEM Intake, 5Zigen Fireball Exhaust w/Gutted Cat, 18 Degree Advanced Timing, DC C/C Header, DC Short-Shifter, Gutted Interior, Sprint Race Springs, Front & Rear Strut Bars. Clear Lenses All Around w/Hiper White Bulbs & Alteeza Tailights.
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bore*stroke=87*90.7

Displacement 2157cc

that's all I know off the top of my head.

JP
 
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bore: 87mm
stroke: 95mm
rod length: 143mm
rod ratio: 1.58
displacement: 2156.73cc
intake valve diameter: 35mm
exhaust valve diameter: 30mm
head cc's: 53.8cc
CR: 10:1

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Billy
North Texas Prelude Owners Group
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oops, stroke is 90.7mm


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Billy
North Texas Prelude Owners Group
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Discussion Starter #9
if i increase the rod length to 159mm...what else would that affect? the reason i ask is b/c if you increase it to 159mm, you succesfully change the rod ratio to a very nice 1.75303 ratio. would there be a problem with the rods hitting the cylander walls, or the piston being moved too much?

also, would the stroke change?

-Chris
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<font face="Verdana, Arial" size="2">Originally posted by CSnyder:
if i increase the rod length to 159mm...what else would that affect? the reason i ask is b/c if you increase it to 159mm, you succesfully change the rod ratio to a very nice 1.75303 ratio. would there be a problem with the rods hitting the cylander walls, or the piston being moved too much?

also, would the stroke change?

-Chris
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</font>
With a rod that long, you're going to run the pistons right up through the head. The pistons already come up to the top of the deck of the block. There isn't much valve/piston clearance. You might be able to increase the length of the rod by about 1mm, but I think that the deck of the block won't be high enough.

You could try getting custom pistons made, and move the wrist pin up, but again, you would only be able to move the wrist pin up only 5mm or so. Then you would have to get custom rods made as well.

Changing rod length and piston configuration won't affect stroke.

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Billy
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So, are you going to try it?


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Billy
North Texas Prelude Owners Group
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Discussion Starter #12
why? so you guys learn from my misfortune!? hahah, j/k

i'm a broke student...i'm talking about at the end of the summer doing it. just getting ideas.

-=Chris

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