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Champagne on Beer Budget
 
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Join Date: Dec 2004
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EFI distributor vs crank/cam sensors

I am working on my EFI again and stumbled across some older threads discussing the Accel 77911 distributor (dual sync)....anyone try this yet...pro's/con's?

ACCEL 77911 - ACCEL DFI Dual Sync Distributors - Overview - SummitRacing.com
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Einar

87 911 Turbo
77 911 IROC project SOLD
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Old 08-12-2011, 11:26 AM
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We talk about you 87 turbo right? Then the Accel is useless, your dizzy turns counterclockwise... I think all 3.3 turbos do
So I dont think the gear will fit. Direction itself does not matter BTW
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930 Turbo '81 Too many modifications to list

Last edited by proffighter; 08-12-2011 at 03:05 PM.. Reason: more text
Old 08-12-2011, 03:00 PM
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you could do what I'm doing and use a 964 3.6 flywheel conversion with the full sized 60-2 wheel configuration and use a sensor like the stock 964 Bosch sensor and sensor mount. Your 930 gear box bell housing will likely have to be notched for the sensor, but the 2 mounting holes should already be in your case...they were in my '87

Patrick Motorsports - PMP 24036DMEFW 3.6L 36L CONVERSION FLYWHEEL 9 BOLT 930 G50 240MM 964 993 DME MOTRONIC PORSCHE
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Old 08-12-2011, 05:37 PM
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GJF GJF is offline
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The distributor will work fine IF.... You are running an aftermarket ECU such as a Accel DFI or any programmable fuel/spark engine management system. You will need to use your gear off your stock distributor. The rotation is irrelevant with these units. They are extremely reliable. If you want it modified for twin plug let me know. G
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Twin Garrett's, Big Valve, Xtreme Cylinder Heads, JB Racing cylinders and machine work, custom JE pistons, GT2 EVO cams, GT3 oil pump, modified 3.2L intake, 80mm TB, custom Intercooler, equal length headers, DFI, KEP Stage 2 custom twin disc, G50 custom gear set, LSD, Tilton trans pump, Fluidyne cooler

Last edited by GJF; 08-14-2011 at 08:22 PM..
Old 08-14-2011, 08:18 PM
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Turns out my sensors were working fine..they were just in the wrong zipcode. I had a high syncRef value (93%) which required moving of the cam sensor to bring it down to ~65%...should eliminate some of my issues.
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87 911 Turbo
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Old 08-16-2011, 06:49 AM
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