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Join Date: Feb 2005
Location: Nashville ex-burbs
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Has anyone back-dated a 3.3 distributor before?

While I decide which EFI to try, I would like to backdate my 3.3 distributor to use it without an ECU. I have a '77 car so I don't plan to update the wiring to match the stock '87 engine.

Concerns:
1. The '87 3.3 distributor has reversed the direction of the drive gear that was in my '77 2.7, so I can't use either at this point.

2. I don't have, nor want an ECU.

3. I'm not ready for a crank trigger system until I choose an EFI setup.

Any good suggestions?

All I want to do is make the 3.3 disty accept my simple MSD setup, or find an easy replacement.

Thanks!

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Old 09-06-2011, 04:33 PM
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No 3.3L 930 engine has an ECU. All 930 distributors use mechanical/vac/boost timing curves.
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RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds
'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8
Old 09-06-2011, 07:06 PM
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So my 2.7 wiring harness will work with the 3.3?

I guess I assumed that it wouldn't work because I don't see any points inside.

If so, thanks much!
Now I just need to wire it right.

I wonder where I can look for pics or diagrams for this swapover?

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2000 Boxster S
2004 330ci convertible
1978 450 SLC
1924 Model T Ford touring
Fleet of Ford Buses, Sedans, SUVs and Limos
Old 09-06-2011, 07:15 PM
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