 Converting a 901 side shift to a 4 speed. |
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| 9144me2enjoy |
 Nov 26 2019, 06:35 PM
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Member  Group: Members Posts: 310 Joined: 19-June 18 From: Oregon Member No.: 22,240 Region Association: Pacific Northwest  |
I have a 74-914 with a 4 cyl Raby engine 2270cc. It has the 901 side shift trans. Tired of the dog bone pattern. What would it cost to go to a 4 speed, 1st to 2nd position and make the smaller gear integral with the main shaft and possibly replace 4th gear with a lower highway ratio gear for mileage. I know this is common with V8 conversions etc. What is your thoughts. Thanks
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| Superhawk996 |
Nov 27 2019, 01:21 PM
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914 Guru Group: Members Posts: 5,908 Joined: 25-August 18 From: Woods of N. Idaho Member No.: 22,428 Region Association: Galt's Gulch 
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Not trying to be quite as outspoken as Thelogo but . . . .
The dog leg transmission was a defining characteristic of the early 911's and it carried into the 914 via the 901 transmission. Why would you want to change it? It is part of what makes a 914 different from most other vehicles on the road. Remember that in 1970 a Porsche 914 had a 5 speed transmission at a time when most domestic OE's had a 3 on the tree . . . or maybe a floor mounted 4 speed if it was "fancy" for crying out loud. The main idea of the dog leg transmission is that competition oriented vehicles had a transmission that only used 1st gear to launch the car at the starting line. The rest of the racing was done in 2-5 gears. Don't get me started on how Porsche came to forget their own roots . . . I've already made an ass of myself engouh over on the other thread. (IMG:style_emoticons/default/happy11.gif) Think a 914 is a PITA to shift? By all means don't buy a Ferrari with a gated dog leg transmission shifter. (IMG:style_emoticons/default/lol-2.gif) Per Thelogo's and Mepstein's posts; Just don't use 1st gear if you have enough torque to launch in 2nd. Still don't like it? I guess you go find and old Hewland, Muncie, or ZF transmission and do a swap? |
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Posts in this topic
9144me2enjoy Converting a 901 side shift to a 4 speed. Nov 26 2019, 06:35 PM
mepstein It’s pretty expensive to do since our trans have... Nov 26 2019, 07:15 PM sixnotfour 901 4sp flip the ring gear done..how many ..4 spea... Nov 26 2019, 07:18 PM 9144me2enjoy Sounds like 1) leave things alone if it isn’t br... Nov 26 2019, 07:21 PM theer As Mark says, the V8 guys will lock out first and ... Nov 26 2019, 08:13 PM 9144me2enjoy :agree: Nov 27 2019, 10:39 AM mepstein I'm not sure what flipping the ring gear will ... Nov 27 2019, 10:47 AM thelogo Its already a 4 speed
Just block off 1st gear .... Nov 27 2019, 10:54 AM Mark Henry
... and possibly replace 4th gear with a lower hi... Nov 27 2019, 09:40 PM gms I built a 4-speed for my race car, just block out ... Nov 27 2019, 10:22 PM ClayPerrine :agree:
Porsche actually made a 4 speed version ... Nov 27 2019, 11:28 PM
sixnotfour
:agree:
Porsche actually made a 4 speed version... Nov 28 2019, 11:24 AM Mark Henry My 914/6 3.0 conversion is custom geared A, F, O, ... Nov 28 2019, 10:47 AM ClayPerrine
My 914/6 3.0 conversion is custom geared A, F, O,... Nov 28 2019, 10:58 AM 9144me2enjoy Great feedback, thanks........we will see. I think... Nov 28 2019, 12:14 PM Mark Henry For a T4, stock or performance the stock 914 geari... Nov 28 2019, 01:17 PM 9144me2enjoy :agree: Nov 28 2019, 09:09 PM |
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