 2.0 Head CC, Stock Volume? |
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| Todd Enlund |
 Jul 21 2008, 05:31 PM
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Resident Photoshop Guru  Group: Members Posts: 3,251 Joined: 24-August 07 From: Laurelhurst (Portland), Oregon Member No.: 8,032 Region Association: Pacific Northwest  |
I just CCed one of my heads. I got 62cc in both chambers. I thought that stock was 60cc? Does this mean that the buret that I bought is a POS?
By my math, 62cc chambers would give me 9.2:1 with a .040 deck height on a 96x78 mm 2258cc engine... 60cc would give me 9.4:1. Heads need a rebuild... I'm just trying to figure out where I'm at for a starting point. |
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| Dominic |
Jul 21 2008, 08:45 PM
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Dominic Group: Members Posts: 992 Joined: 14-January 03 From: Vacaville, CA Member No.: 149 Region Association: Northern California |
QUOTE(Todd Enlund @ Jul 21 2008, 04:31 PM)  I just CCed one of my heads. I got 62cc in both chambers. I thought that stock was 60cc? Does this mean that the buret that I bought is a POS? By my math, 62cc chambers would give me 9.2:1 with a .040 deck height on a 96x78 mm 2258cc engine... 60cc would give me 9.4:1. Heads need a rebuild... I'm just trying to figure out where I'm at for a starting point. The stroke on the 78mm crank is actually 78.4 mm for a total of 2270cc, so you should have a bit more Compression than you originally figured. |
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| Todd Enlund |
Jul 25 2008, 04:27 PM
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Resident Photoshop Guru Group: Members Posts: 3,251 Joined: 24-August 07 From: Laurelhurst (Portland), Oregon Member No.: 8,032 Region Association: Pacific Northwest |
QUOTE(Dominic @ Jul 21 2008, 06:45 PM) The stroke on the 78mm crank is actually 78.4 mm for a total of 2270cc, so you should have a bit more Compression than you originally figured. My crank is actually a 78mm crank, for 2258cc. I dunno who made it, but it's got welded counterweights and I measured it at 78mm. I checked everything over, and noticed that the plate that I made from acrylic had a burr around the perimeter. I removed the burr, and now I get a reading of 60.2 cc. Doing a bit of math, a .010" burr on a 94mm cylinder is 1.76 cc, so that is just about right. |
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Posts in this topic
Todd Enlund 2.0 Head CC Jul 21 2008, 05:31 PM
r_towle Its quite possible that you have a broken calculat... Jul 21 2008, 05:43 PM
Todd Enlund
Its quite possible that you have a broken calcula... Jul 21 2008, 05:48 PM r_towle I will assume that you put in the plug, held the p... Jul 21 2008, 05:54 PM Todd Enlund
I will assume that you put in the plug, held the ... Jul 21 2008, 07:15 PM 914Sixer Factory Tech Spec book says 58.7-60.2cc. My heads... Jul 21 2008, 07:14 PM r_towle I used tranny fluid...easy to see.
Dunno, but I th... Jul 21 2008, 07:30 PM Todd Enlund
I used tranny fluid...easy to see.
Dunno, but I t... Jul 21 2008, 07:55 PM Todd Enlund
I used tranny fluid...easy to see.
Dunno, but I ... Jul 21 2008, 08:27 PM HAM Inc The largest O.E. chamber I can recall measuring ca... Jul 22 2008, 07:59 AM Todd Enlund
The largest O.E. chamber I can recall measuring c... Jul 22 2008, 11:09 AM |
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