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964 3.6L Engine w/ Protomotive Turbo
Curious to learn yawl's
 thoughts on value of engine with these leakdown test results:#1 - 12% #2 - 11% #3 - 12% #4 - 10% #5 - 8% #6 - 8%
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http://www.youtube.com/user/pdqcarrera Last edited by pdqcarrera; 12-08-2010 at 09:49 AM.. |
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12-06-2010, 09:55 AM
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registered user
Join Date: Sep 2007
Posts: 483
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Well, unlike some on this forum, I'm no expert. But if I were to get those numbers on an engine of mine, I wouldn't be happy. Perhaps the brain trust will weigh in with an assessment.
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12-06-2010, 10:15 AM
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Lurkasaurus
Join Date: Apr 2004
Location: SK, Canada
Posts: 930
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Done hot or cold? How many miles/mods on the engine? I don't think the numbers are horrible per se, but having some cylinders 50% higher than some others is cause for concern.
I can't open that ebay listing.
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Tony '77 930 "Objects in mirror are losing" "Oh cock..." - James May |
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12-06-2010, 10:36 AM
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broken link
Originally Listed per Ebay Item number: 200545461440
Relisted: I'm used to <7% being considered excellent nut thought I'd doublecheck here. I probably should add I'm impressed with the seller's rare approach to coming forth with the engine test results. I'd be interested if not for the fact I'm not a fan of boosting NA engines and without knowing details of how compression was lowered, piston design, etc., thus I'm by default skeptical, which is then amplified by what I believe to be relatively high leakdown results. .
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http://www.youtube.com/user/pdqcarrera Last edited by pdqcarrera; 12-06-2010 at 12:01 PM.. |
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12-06-2010, 11:52 AM
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Metal Guru
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If the test was done cold I don't see an issue with those numbers.
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Paul B. '91 964 3.3 Turbo Port matched, SC cams, K27/K29 turbo, Roush Performance custom headers w/Tial MV-S dual wastegates, Rarlyl8 muffler, LWFW, GT2 clutch & PP, BL wur, factory RS shifter, RS mounts, FVD timing mod, Big Reds, H&R Coilovers, ESB spring plates- 210 lb |
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12-06-2010, 01:48 PM
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Join Date: Nov 2008
Location: Austin, TX
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Based on conversations with Franz Blam on the subject, I agree with Paul.
If the test was done cold, those numbers are fine for a used engine. |
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12-06-2010, 05:11 PM
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Join Date: Dec 2004
Location: Danville - CA
Posts: 1,259
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Those are some pretty crappy looking welds on some of the plumbing...
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Rob Montgomery '88 Blk/Blk 930 ('Lucy') - Not Stock & Not Running |
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12-06-2010, 05:14 PM
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Join Date: Oct 2003
Location: Mount Pleasant, South Carolina
Posts: 14,669
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Looks like a tired engine.
Oil leaks, rust, poor lookings welds, cobbed together IMHO, car is wrecked.... |
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12-06-2010, 05:33 PM
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Join Date: May 2005
Location: Cambridge
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I would question the welds and so forth. I have a stage 1 protomotive turbo on my 964 and the welds look perfect.
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12-07-2010, 12:03 PM
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dumb question but what is a leak down test and what does it show? never mind a quick google search told me what i needed to know
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84 930 Slant 15 Sonata 2.0T 08 Ram 1500 15 Ram Eco Diesel Last edited by j930; 12-07-2010 at 06:44 PM.. |
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12-07-2010, 05:32 PM
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PDQCARRERA
PDQTAIL
1991 Porsche 964 Turbo
930S
