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Are all 915 Transmissions 5 speed ???
I had heard someone looking for a 4 speed 915. I thought only 930 Turbo came in a 4 speed. Are they still considered a 915?
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gearhead
Join Date: Nov 2007
Location: Loverland, CO
Posts: 23,539
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There was a 4spd 915 for most of the 70s. Different than a 930 4 spd.
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1974 914 Bumble Bee 2009 Outback XT 2008 Cayman S shop test Mule 1996 WRX V-limited 450/1000 |
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Fleabit peanut monkey
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Was there a mag case / pressure cast aluminum case transition point that is definable? Does it have anything to do with a move to 5 speeds?
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1981 911SC Targa Last edited by Bob Kontak; 05-07-2017 at 03:17 PM.. |
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Registered
Join Date: Apr 2007
Location: I live on the road, I just stay here sometimes...
Posts: 7,104
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In 72 for instance, I think the T was a 4 speed and the S was a 5, unless the T had S options
Back in those days a 5 speed was a high end option on many cars and everybody drooled if you had one
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73 RSR replica (soon for sale) SOLD - 928 5 speed with phone dials and Pasha seats SOLD - 914 wide body hot rod My 73RSR build http://forums.pelicanparts.com/porsche-911-technical-forum/893954-saving-73-crusher-again.html |
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Moderator
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The earliest records i have start w/ 1970 MY
4 speed versions of the 915 were offered on all models T thru Carrera(for some years) for all years 1970 thru 1977. First year there were no 915 4 speeds was 1978 w/ the intro of the SC. Mostly these would be found on stripper T models. It depended more on what the individual importers specified when they ordered the cars 1970-71 911.00 4 spd used in 911T (US & CDN) 1972-73 915..12 4 spd used in 911TV/911E/911S RoW, 911TE US & CDN 1974 915.16 used in 911/911S/Carrera 1975 915.48 used in 911, 915.45 used in 911S & 911Carrera(US, CDN,Cal), 915.16 used in 2.7 Carrera 1976 915.45 used in 911, 915.49 used in Carrera 3.0 & 911S(J) 1977 915.65 used in 911/911S, 915.66 used in 911/911S/Carrera 3.0
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Bill Verburg '76 Carrera 3.6RS(nee C3/hotrod), '95 993RS/CS(clone) | Pelican Home |Rennlist Wheels |Rennlist Brakes | |
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gearhead
Join Date: Nov 2007
Location: Loverland, CO
Posts: 23,539
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I'll post later when I get to my office. There's some funky stuff that went on with the middies
Ps. To avoid confusion the 70-71 911 gearbox should be ignored. Its not a 915.
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1974 914 Bumble Bee 2009 Outback XT 2008 Cayman S shop test Mule 1996 WRX V-limited 450/1000 |
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Registered
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My 77 has a 4 speed. It was the standard option on the 2.7 liters ROW.
Same 1st gear, longer 2,3,4. 4th is about the same at 5th in a 5 speed
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Magnus 911 Silver Targa -77, 3.2 -84 with custom ITBs and EFI. 911T Coupe -69, 3.6, G50, "RSR", track day. 924 -79 Rat Rod EFI/Turbo 375whp@1.85bar. 931 -79 under total restoration. |
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gearhead
Join Date: Nov 2007
Location: Loverland, CO
Posts: 23,539
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Long day... what I wanted to look up was the switch from the 4spd being standard. They did a weird thing with the US market in 1976&1977. The 5spd was The standard gearbox. But not ROW. rOW cars had the 4spd standard and the 5spd was an option. I've even seen a '76 Carrera3 with a 4spd.
Bob, 4spd versus 5spd had nothing to do with mag or alu. Aluminum 915s started with the SC in 78. I'll see if I can find the old 915 differences thread. I think it was RWebb or maybe KTL who had a thread with a chart of the changes/design improvements by year and model.
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1974 914 Bumble Bee 2009 Outback XT 2008 Cayman S shop test Mule 1996 WRX V-limited 450/1000 |
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Bland
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I think aluminum 915s started in 77, not 78.
I have a 74 ROW 911 with the low HP 2.7. I *think* it is a 5 speed. I bought the car for the trans and its 7:31 R&P.
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06 Cayenne Turbo S and 11 Cayenne S 77 911S Wide Body GT2 WCMA race car 86 930 Slantnose - featured in Mar-Apr 2016 Classic Porsche Sold: 76 930, 90 C4 Targa, 87 944, 06 Cayenne Turbo, 73 911 ChumpCar endurance racer - featured in May-June & July-Aug 2016 Classic Porsche |
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cycling has-been
Join Date: Sep 2004
Location: Jersey Shore
Posts: 7,238
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915.23 for the 5 speed 76 912E - actually stamped as a 923xxx....
Bill K
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73 911T MFI, 76 912E, 77 Turbo Carrera |
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gearhead
Join Date: Nov 2007
Location: Loverland, CO
Posts: 23,539
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That's because it has an input shaft splined for the early 911/914 clutch assembly.
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1974 914 Bumble Bee 2009 Outback XT 2008 Cayman S shop test Mule 1996 WRX V-limited 450/1000 |
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cycling has-been
Join Date: Sep 2004
Location: Jersey Shore
Posts: 7,238
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Thanks Matt.
Good to know if I ever do an upgrade. Bill K (nice talking with you at Sebring this year)
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73 911T MFI, 76 912E, 77 Turbo Carrera |
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gearhead
Join Date: Nov 2007
Location: Loverland, CO
Posts: 23,539
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Hey Bill,
You're quite welcome.
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1974 914 Bumble Bee 2009 Outback XT 2008 Cayman S shop test Mule 1996 WRX V-limited 450/1000 |
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