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Registered User
Join Date: Feb 2012
Posts: 21
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porsche power problem
i have a 77 911s that has zero power up to 4000 rpm,
when i rev it in neutral it goes slower up to 4000 rpm than hesitates than takes off this happens but its subtle. when its in first gear it has no punch up untill 4000 rpm the compression seems fine with the lowest being 120psi and the most being 140 ive tried everything i can think of but i cant nail it 
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03-30-2012, 04:22 PM
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Member 911 Anonymous
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Check the fuel filter, it may be clogged
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'85 Carrera Targa Factory Marble Grey/Black * Turbo Tail * 930 Steering Wheel* Sport Seats * 17" Fuchs (r) * 3.4 * 964 Cams * 915 * LSD * Factory SS * Turbo Tie Rods * Bilsteins * Euro Pre-Muff * SW Chip on 4K DME * NGK * Sienes GSK * Targa Body Brace PCA/POC |
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03-30-2012, 06:47 PM
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ROW '78 911 Targa
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massive vacuum leak?
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Dennis Euro 1978 SC Targa, SSI's, Dansk 2/1, PMO ITBs, Electric A/C Need a New Wiring Harness? PM or e-mail me. Search for "harnesses" in the classifieds. |
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03-30-2012, 07:22 PM
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Registered
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Dirty/work spark plugs, distro cap and rotor, bad plug wires, if there is a fuel pump relay check it, check fuel pressure as well.
Regards Dave
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'78 911SC Targa (Back In Action!) '00 996 Carrera (New kid on the block) '87 944 (college DD - SOLD) '88 924s (high school DD - Gone to a better home) |
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03-30-2012, 07:23 PM
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Enthusiast
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Check WOT (wide open throttle) Make sure you are getting it, this was my culprit. A screw had backed out in the linkage and was only letting the butterfly open about 20 degrees! Adjusted it and BAM (Or as clarkson would say - Powerrrr)
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Jonathon 1982 911 SC www.avrmotorsports.com |
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03-30-2012, 10:22 PM
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Registered
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If you ignition timing is off you may not be getting enough advance until the distributor spins with a higher RPM. Have you done a tune up recently where you may have moved the distributor?
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81 Targa, Bamboo Beige, 3.2 SS |
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03-31-2012, 04:06 AM
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Marble Grey
Heinz
1982 Porsche 911 SC
