 i have 96mm P&C's - where to measure for stroke?, are they 66 or 71 ?? |
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| jimkelly |
 Dec 13 2011, 11:40 AM
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#1
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Delaware USA  Group: Members Posts: 4,969 Joined: 5-August 04 From: Delaware, USA Member No.: 2,460 Region Association: MidAtlantic Region  |
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Replies(1 - 9)
| ChrisFoley |
Dec 13 2011, 11:43 AM
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#2
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I am Tangerine Racing Group: Members Posts: 7,986 Joined: 29-January 03 From: Bolton, CT Member No.: 209 Region Association: None 
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QUOTE(jimkelly @ Dec 13 2011, 12:40 PM)  pic Mark Henry just posted pin heights in another thread a few days ago. IIRC it was about some oddball KB pistons. |
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| Mark Henry |
Dec 13 2011, 11:45 AM
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#3
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
1.8
I remember that 2.0 was just under 1" and 1.8 was about 1.175 IIRC same way you're measuring it. |
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| Mark Henry |
Dec 13 2011, 11:55 AM
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#4
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
Hi Jim to answer your PM yes they are for a 1.8/1.7 stroke.
The other way to tell 66 and 71mm KB pistons apart is the pin hole hits right into the oil scraper (3rd) rings on the 71mm. Here's the thread with my measurements. http://www.914world.com/bbs2/index.php?sho...&hl=pistons |
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| jimkelly |
Dec 13 2011, 12:01 PM
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#5
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Delaware USA Group: Members Posts: 4,969 Joined: 5-August 04 From: Delaware, USA Member No.: 2,460 Region Association: MidAtlantic Region |
thank you guys!
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| Valy |
Dec 13 2011, 12:51 PM
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#6
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Senior Member Group: Members Posts: 1,677 Joined: 6-April 10 From: Sunnyvale, CA Member No.: 11,573 Region Association: Northern California |
Actually, I believe you got the wrong answer.
The KB pistons that were discussed in other threads are made for longer rods. The original pin height of the 2.0 is ~35mm from pin center to piston top. It looks like the cylinders you have are for a 71mm stroke. |
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| jimkelly |
Dec 13 2011, 07:55 PM
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#7
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Delaware USA Group: Members Posts: 4,969 Joined: 5-August 04 From: Delaware, USA Member No.: 2,460 Region Association: MidAtlantic Region |
thanks : )
damn : ( |
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| jcd914 |
Dec 13 2011, 08:10 PM
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#8
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Advanced Member Group: Members Posts: 2,092 Joined: 7-February 08 From: Sacramento, CA Member No.: 8,684 Region Association: Northern California |
QUOTE(Valy @ Dec 13 2011, 10:51 AM) Actually, I believe you got the wrong answer. The KB pistons that were discussed in other threads are made for longer rods. The original pin height of the 2.0 is ~35mm from pin center to piston top. It looks like the cylinders you have are for a 71mm stroke. I am going to disagree here. Jim is measuring the same way as Mark Henry did in the previous thread and coming out the almost the same measurements as Mark did for the stock 1.7 & 1.8 pistons. To me that says Jim has pistons with the pin set for 1.7/1.8 stroke. In the other thread Mark measured from the piston top to the top of the pin bore (just like Jim is showing us) and had the following for stock pistons: 2.0, .933" 1.8, 1.178" 1.7, 1.184" 1.178" ~= 29.9mm for 1.8L 1.184" ~= 30.1mm for 1.7L Jim is measuring approx 30mm which matches 1.7/1.8. He should be closer to 26mm/27mm for 2.0L Jim |
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| Valy |
Dec 14 2011, 12:27 AM
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#9
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Senior Member Group: Members Posts: 1,677 Joined: 6-April 10 From: Sunnyvale, CA Member No.: 11,573 Region Association: Northern California |
QUOTE(Valy @ Dec 13 2011, 11:51 AM) Actually, I believe you got the wrong answer. The KB pistons that were discussed in other threads are made for longer rods. The original pin height of the 2.0 is ~35mm from pin center to piston top. It looks like the cylinders you have are for a Fixing my error above. Sorry. |
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| jimkelly |
Dec 14 2011, 05:19 AM
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#10
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Delaware USA Group: Members Posts: 4,969 Joined: 5-August 04 From: Delaware, USA Member No.: 2,460 Region Association: MidAtlantic Region |
thanks : )
great : ) |
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