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Join Date: Dec 2005
Location: Bay Area, Ca
Posts: 877
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I've decided to go for it..
I've been wanting to do this ever since I got a 72 coupe from a fellow P-nite. It is a 72 non-sr coupe with a 78 3.0 that is set up for x-cross and DE's. The car came with the "S" package (S calipers), short shift 915, adjustable Konis, stock T-bars, lowered, and balanced. The car ran fine, but I just wanted more. Instead of working with the 3.0, I decided to go bigger (albeit not a whole lot bigger) w/3.2.
The car is presently at Jimmy Deering's (great guy, btw. VERY ACCOMODATING!!) new shop in Apple Valley in Socal. The plan is swap it for a 3.2 from an 89 car as well as the entire susension/brakes from that same car. I just bought a set of Webers (40s) and can't quite decide if I want to add them to the swap at this time. This is scary for me because if it doesn't work out, I would have to do major explaining to my wife why I ripped a perfectly good car apart. Anyway, this will be my first project (pretty new to this stuff) of this sort and I feel I need to thank the people on this board for their opinions and advice. Also, a special thank goes out to RODSRSR (great guy as well) for putting up with all of my stupid questions. More pics to come as Jimmy gets more into it. [IMG]  [/IMG] [IMG]  [/IMG][IMG]  [/IMG][IMG]  [/IMG]
Last edited by POORSH; 01-11-2009 at 11:19 PM.. Reason: spelling |
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01-11-2009, 11:15 PM
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Join Date: May 2001
Location: Peoples Republic of Long Beach, NY
Posts: 21,140
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how much $
are you locked into the deal ?
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Ronin LB '77 911s 2.7 PMO E 8.5 SSI Monty MSD JPI w x6 |
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01-11-2009, 11:42 PM
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Join Date: Mar 2007
Posts: 66
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If that is a 72 why is the oil filler in the engine compartment?
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Lotus 23 Lotus 7 TVR Vixen TR3 914-6 Clone 914-4 X-Runner |
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01-12-2009, 05:37 AM
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Work in Progress
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Sounds like a cool project.
I think the general consensus is that 40's are too small for a 3.2L, but you should ask around I'm not the expert a lot of other people are. I believe most would recommend selling the webers and buying a set of PMO 46's for a 3.2L car.
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"The reason most people give up is because they look at how far they have to go, not how far they have come." -Bruce Anderson via FB -Marine Blue '87 930 |
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01-12-2009, 06:16 AM
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Banned
Join Date: Feb 2007
Location: Overlooking Rodeo Dr. From the Hillside.
Posts: 95
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WOW, thats nice...
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01-12-2009, 09:03 AM
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Work in Progress
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I did a little reading of old Up Fixin Der Porsche today, and read an article about a 3.0L engine that is modified by going to 3.2L and carburation. Here is what Bruce Anderson said in regards to carburated 3.2L engines, "Our experiences with this 3.2L 911 engine reinforced my opinion that the 40IDA Webers are a much better choice for a street engine than the larger carburetors." (pg. 90 of Upfixin #7)
I know I have heard others suggest the 46's on a 3.2L engine here, but I assume it depends on what you want to do with the engine. If it is a full out track car 46's may be better, for a street/track car 40's may be better. I'm really not an expert but I wanted to update you on the newest information I had. I'd get in touch with a couple experts to see what they thought. Bruces opinion stated above was made around 1984 - 1986 so he may have changed that since then. Rich
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"The reason most people give up is because they look at how far they have to go, not how far they have come." -Bruce Anderson via FB -Marine Blue '87 930 |
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01-12-2009, 11:17 AM
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Join Date: Mar 2001
Location: Marysville Wa.
Posts: 22,543
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3.2s run fine on 40s.
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https://www.instagram.com/johnwalker8704 8009 103rd pl ne Marysville Wa 98270 206 637 4071 |
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01-12-2009, 12:11 PM
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Location: Bay Area, Ca
Posts: 877
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About the cost: Haven't settled on a number yet due to the little bits and pieces.
About the oil filler: From what I know from the PO, when the 3.0 went in, they decided to use the later oil tank and thus the inner oil access. I'd probably convert it back if I can find a 72 tank. Thanks for the carb info. Like other projects on here, I have a bad feeling this isn't going to be the end of the tinkering. 
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01-12-2009, 11:36 PM
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Zink Racer
Join Date: Aug 2005
Location: Spokane WA
Posts: 4,058
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Why not swap over the motronic set up for the 3.2 as well?
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Jerry 1983 911 SC/Carrera Franken car, 1974 914 Bumblebee, 1970 914-4, 1999 323ti |
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01-13-2009, 07:14 AM
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Location: Bay Area, Ca
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Jerry,
I am leaning in that direction for now. |
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01-13-2009, 07:59 AM
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Join Date: Jan 2004
Location: Sacramento
Posts: 7,269
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A 3.2 with custom SW chip, and 1 5/8's headers w sport muffler is a great trouble free motor. I would have a hard time giving up the civility of the EFI. It has not bad habits or transition issues and is more efficient getting much better gas mileage.
A 3.0 with carbs for the most part should be an equal in power to a EFI 3.2. I defer to the experts. |
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01-13-2009, 08:19 AM
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Join Date: Nov 2006
Location: Ontario, California
Posts: 1,141
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I have a 1973 with a 3.2 Absolutely no way I'd switch to carb's. The Motronic works great and the car starts every time, (hot or cold) no flooding and the throttle response is superb.
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___________________________________________ 2001 Boxster S, Orient Red Current Vehicle, 1973.5 911 full factory "S" trim with a 3.2 engine **Sold**,2002 996 **Sold**,1975 911S **Sold**, 1971 911T **Sold**, 1968 912 **Sold** |
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01-13-2009, 08:27 AM
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Let me know how this turns out please, I think you stole the 3.2 I was going to buy
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01-13-2009, 10:46 AM
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You think there is going to be a big difference between the 3.0 and the 3.2?
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01-13-2009, 10:48 AM
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One more vote for stock Motronic in your hot rod.
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techweenie | techweenie.com Marketing Consultant (expensive!) 1969 coupe hot rod 2016 Tesla Model S dd/parts fetcher |
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01-13-2009, 11:09 AM
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Location: Bay Area, Ca
Posts: 877
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Motronic it is. Thanks for all the input.
VinceQN, I think he had a couple of 3.2's when I talked to him. |
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01-13-2009, 01:01 PM
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Poorsch, since the 915 trans I bought from Jimmy last weekend probably came out of your car, what can you tell me about how it shifted and sounded? If you can PM me, I'd appreciate it.
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techweenie | techweenie.com Marketing Consultant (expensive!) 1969 coupe hot rod 2016 Tesla Model S dd/parts fetcher |
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01-13-2009, 01:06 PM
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Join Date: Nov 2003
Location: South West Florida
Posts: 2,522
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I hope to have mine installed soon.
 It's going into my 73.
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2000 Boxster S (gone) 1972 911s Targa (sold) 1971 911t coupe roller (sold) 1973 911t coupe / 3.2 (sold) Gruppe B #057 |
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01-13-2009, 01:56 PM
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Location: Bay Area, Ca
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dmcummins,
is it a stock 3.2? any mods to it? |
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01-13-2009, 03:40 PM
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GOT TURBO..
Join Date: Jan 2005
Location: Southern Sunny California
Posts: 552
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Not same car..
TECHWEENIE: I did a 3.0L, aluminum 915 swap on a fellow Pelican "Scarabjet" Was a 72, conversion.. That was the car it from last years swap.
Who will be posting to this thread shortly.. Last edited by MobileWrks; 01-13-2009 at 05:02 PM.. |
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01-13-2009, 04:47 PM
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Bruiser
Sinister Dove
Gemini Boomerang
Porsche 996 Turbo Convertible
996 Turbo
