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2.4 dizzy in 2.2 case
I've poked around the archives and I can't find anything definitive. I'm going to be building a Hi compression 2.4E enigine but my case is worn out. I might be buying a case from a 71 but I don't know if the distributor will fit since I know that they were changed somewhere in there. Will my 2.4T dizzy fit on the 2.2 case?
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Tim 1973 911T 2005 VW GTI "Dave, hit the brakes, but don't look like your htting the brakes...what? I DON'T KNOW, BRAKE CASUAL!!!" dtw's thoughts after nearly rear ending a SHP officer |
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10-10-2003, 12:57 PM
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Hi, no it wont. 2.4 is larger in bore than the 2.2 one. In fact, early 2.7 uses the same dizzy as 2.4. My advice? Get a 7R case.
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PCA Member 2009 Audi A3 2.0 Quattro 1978 911 SC Targa |
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10-10-2003, 06:34 PM
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I've got a 7R case but it's wide spigoted. I need a small one.
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Tim 1973 911T 2005 VW GTI "Dave, hit the brakes, but don't look like your htting the brakes...what? I DON'T KNOW, BRAKE CASUAL!!!" dtw's thoughts after nearly rear ending a SHP officer |
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10-10-2003, 06:43 PM
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Registered
Join Date: Oct 2002
Location: Minneapolis, MN
Posts: 1,226
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Part numbers to look for:
0 231 121 006 0 231 159 001 0 231 159 002 (that's for an "S" VERY different curve) 0 231 159 007 0 231 159 008 (fir 70-71 T) You will most likely have to modify the curve. About $80.00 but used dizzy's sometimes require additional work. The basic checking points are: 900 rpm 2 deg to 4 deg at DC 3000 rpm 20 deg to 22 deg BTDC 4600 rpm 27 deg to 29 deg BTDC 6000 rpm 33 deg to 35 deg BTDC What this boils down to is any distributor that uses a steel hold own clamp will work. 72 and newer dizzy's have the clamp cast into the body. I heard from another source that John Walker can have these larger bodies turned down. John W what is the cost for this work? I saw a distributor that you are looking for on EBAY last night. I bought an 001 at Ventura swap meet for $50.00. Pretty good deal if you ignore the costs of the flight from Minneapolis and two nights in the motel and the lovely dinner my wife and I had in Oxnard. But hey I didn't buy a P-car to SAVE money. Mike
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Thanks, Mike When I was a kid, I didn't want a stupid pony, I wanted a PORSCHE. 1970 911T Coupe, 1979 911SC Targa Euro, 1971 Honda CT70 HK Trail 70 (the ultimate in two wheeled transportation) |
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10-11-2003, 03:54 AM
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Bird. It's the word...
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On advice from JWW, I had a 2.7 Bosch distributor turned down to match the diameter of the smaller Marelli I was replacing... very easy job (any good machine shop can do it). I then sent the dizzy away to be re-mapped to suit my engine. Total of $250 (Aussie) dollars including the purchase of the 2.7 dizzy.
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John Forcier Current: 68L 2.0 Hotrod - build underway |
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10-12-2003, 12:21 AM
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Stressed Member
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How about the other way around? Is there any way to use an early distributor in a late case?
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'70 911E short stroke 2.5 MFI. Sold  '56 Cliff May Prefab |
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10-12-2003, 08:20 PM
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1973 Porsche 911 2.4 MFI
1974 Porsche 914-6 conversion 2.2T 
1969 Porsche 911T 2.7RS Spec with Webbers
1970 Porsche 911E
