 2.2 or 2.0? |
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| cooper951 |
 Oct 4 2015, 11:43 AM
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Member  Group: Members Posts: 83 Joined: 30-September 15 From: Central Missouri Member No.: 19,219 Region Association: None  |
I bought my 914 on eBay (I know, stupid, but let's move on) and the owner said it had a Big Bore Stroker 2.2L engine, upgraded from stock 2.0L, freshly rebuilt. The mechanic who went over it, adjusted the carbs, and fixed some other issues said that because the compression was 140# in the cylinders, it could not be a 2.2. He said it would need to be 180# or higher in order to be a 2.2, and he couldn't say for sure unless the engine was torn apart, which of course I'm not going to do. I've taken different PCars there for over 20 years, and they have a very good rep in the St. Louis with the Porsche crowd, so I trust him. Any thoughts on this issue?
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| Dave_Darling |
Oct 4 2015, 05:50 PM
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#2
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914 Idiot Group: Members Posts: 14,991 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California 
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The motor is "pumped". That's about all I know for certain, but I believe that it involves pushing a measured amount of air into the intake and turning the engine through one complete four-stroke cycle. You see how much air gets used, and that is a decent approximation of the displacement.
Ah, a quick Google search mentions a tool that gets threaded into the plug hole, and has a floating piston to measure how much air is going in. http://www.speedtalk.com/forum/viewtopic.php?t=1237 --DD |
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Posts in this topic
cooper951 2.2 or 2.0? Oct 4 2015, 11:43 AM
Chris H. Hmmmm.... I'm no expert, but a "stroker... Oct 4 2015, 12:07 PM
porschetub
Hmmmm.... I'm no expert, but a "stroker... Oct 7 2015, 01:51 AM '73-914kid I'm not sure your mechanic knows what he's... Oct 4 2015, 01:32 PM era vulgaris Did the seller offer any receipts from the shop th... Oct 4 2015, 02:40 PM pete000 I was wondering if there is a way to determine the... Oct 4 2015, 04:10 PM |
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