914 Steering rack -V- 911 steering rack, What are the differences? |
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914 Steering rack -V- 911 steering rack, What are the differences? |
HalfMoon |
May 24 2017, 05:20 PM
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#1
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Senior Member Group: Members Posts: 828 Joined: 13-November 12 From: Shenandoah Junction, WV Member No.: 15,144 Region Association: MidAtlantic Region |
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rgalla9146 |
May 24 2017, 06:58 PM
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#2
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Advanced Member Group: Members Posts: 4,545 Joined: 23-November 05 From: Paramus NJ Member No.: 5,176 Region Association: None |
I've always wondered (IMG:style_emoticons/default/popcorn[1].gif) |
HalfMoon |
May 24 2017, 07:05 PM
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#3
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Senior Member Group: Members Posts: 828 Joined: 13-November 12 From: Shenandoah Junction, WV Member No.: 15,144 Region Association: MidAtlantic Region |
I've heard very little on this subject and a google search doesn't really say all that much.... I think the ratio is supposed to be quicker lock to lock, but dunno |
mepstein |
May 24 2017, 08:32 PM
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#4
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914-6 GT in waiting Group: Members Posts: 19,253 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region |
Since Mark / 914rubber is rebuilding them, they might know the details. They are interchangeable.
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adolimpio |
May 24 2017, 08:37 PM
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#5
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Art Group: Members Posts: 180 Joined: 10-March 10 From: Greenwood SC Member No.: 11,449 Region Association: South East States |
I have 911 steering rack (7820900166) and I'm thinking of replacing my stock steering rack (91434701401) with it. What are the differences between the two and are their any advantages? I installed a 911 rack in a 76 914 a few years ago with no issues. Don't recall noticing any difference in the ratio. |
Krieger |
May 24 2017, 11:32 PM
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#6
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Advanced Member Group: Members Posts: 4,705 Joined: 24-May 04 From: Santa Rosa CA Member No.: 2,104 Region Association: None |
Nice rack! I don't think there are any differences in the racks. The shaft that bolts to it is different. I can't remember but one is longer.
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HalfMoon |
May 25 2017, 12:10 PM
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#7
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Senior Member Group: Members Posts: 828 Joined: 13-November 12 From: Shenandoah Junction, WV Member No.: 15,144 Region Association: MidAtlantic Region |
I did a side by side comparison the following 914 347 01401, 1973 914 steering rack 7820 900 166, 1978 911 SC steering rack. They both took 3 1/8 turns end to end. No difference. Further, I really couldn't discern a difference in feel, or resistance in any way. |
PlaysWithCars |
May 25 2017, 01:30 PM
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#8
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Senior Member Group: Members Posts: 524 Joined: 9-November 03 From: Southeast of Seattle Member No.: 1,323 Region Association: Pacific Northwest |
Its always been my understanding that they are identical. Makes sense given that the front end design is the same so all geometry and operating conditions are identical.
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Brian Mifsud |
May 25 2017, 02:30 PM
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#9
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Mechanical Engineer Group: Members Posts: 981 Joined: 3-March 03 From: Penngrove, CA Member No.: 384 Region Association: None |
Different Supplier?
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mepstein |
May 25 2017, 06:01 PM
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#10
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914-6 GT in waiting Group: Members Posts: 19,253 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region |
Similar but not identical. Actually are a couple different 911 versions depending g on the year.
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PlaysWithCars |
May 25 2017, 08:39 PM
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#11
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Senior Member Group: Members Posts: 524 Joined: 9-November 03 From: Southeast of Seattle Member No.: 1,323 Region Association: Pacific Northwest |
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kc4ssd |
May 26 2017, 01:52 PM
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#12
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Newbie Group: Members Posts: 3 Joined: 8-April 13 From: Naples Florida Member No.: 15,744 Region Association: None |
I installed a complete 911 front end in my 914. Other than the shaft from the 911 being different the racks appeared to be identical. The front end I used came out of my 1980 911. The entire front end is complete bolt in. I managed to squeeze a Benz master cylinder in place too for the front 930 brakes and 928 rear brakes. Here is a pic thread of my 914-6 build. Sorry not in order but the front end pics are in there. Mine is nearing complete! A bat out of you know where. Soon to paint.
Tim https://goo.gl/photos/9LDBUmAeFohwkycT8 |
mb911 |
May 26 2017, 02:51 PM
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#13
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914 Guru Group: Members Posts: 6,819 Joined: 2-January 09 From: Burlington wi Member No.: 9,892 Region Association: Upper MidWest |
I installed a complete 911 front end in my 914. Other than the shaft from the 911 being different the racks appeared to be identical. The front end I used came out of my 1980 911. The entire front end is complete bolt in. I managed to squeeze a Benz master cylinder in place too for the front 930 brakes and 928 rear brakes. Here is a pic thread of my 914-6 build. Sorry not in order but the front end pics are in there. Mine is nearing complete! A bat out of you know where. Soon to paint. Tim https://goo.gl/photos/9LDBUmAeFohwkycT8 What kind of muffler is that pictured? |
mepstein |
May 26 2017, 03:44 PM
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#14
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914-6 GT in waiting Group: Members Posts: 19,253 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region |
Similar but not identical. Actually are a couple different 911 versions depending g on the year. Can you elaborate on what the differences in steering geometry are? Are there any series (years) that are more desirable to get the best geometry for autocrossing? I never said they had different geometry, just a bit different. Porsche often makes small changes on parts and assembly's from year to year. |
Luke M |
May 26 2017, 05:17 PM
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#15
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Senior Member Group: Members Posts: 1,370 Joined: 8-February 05 From: WNY Member No.: 3,574 Region Association: North East States |
I installed a complete 911 front end in my 914. Other than the shaft from the 911 being different the racks appeared to be identical. The front end I used came out of my 1980 911. The entire front end is complete bolt in. I managed to squeeze a Benz master cylinder in place too for the front 930 brakes and 928 rear brakes. Here is a pic thread of my 914-6 build. Sorry not in order but the front end pics are in there. Mine is nearing complete! A bat out of you know where. Soon to paint. Tim https://goo.gl/photos/9LDBUmAeFohwkycT8 What kind of muffler is that pictured? Looks like the CFR 6 headers and muffler to me. Check out the Tangerine site. |
HalfMoon |
May 31 2017, 11:35 AM
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#16
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Senior Member Group: Members Posts: 828 Joined: 13-November 12 From: Shenandoah Junction, WV Member No.: 15,144 Region Association: MidAtlantic Region |
Well crap.
I got the new turbi tie rods in and the 911 spare rack that I had and I still have a wobble :-( Soooo. I've replaced the tie rods steering rack ball joints and determined balance ok (was done not long ago) steering coupler and universals ok (inspected them all when I replaced the rack) Bearings ok (no noise or play upon examination/testing) sway bar bushings all ok I suppose the only other things left are, the upper shock bushing the torsion bar bushings That said, Replacing the wheel bearings just for shits and giggles seems an easier elimination than the aforementioned. Anybody else got any idea's? |
burton73 |
May 31 2017, 11:59 AM
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#17
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burton73 Group: Members Posts: 3,510 Joined: 2-January 07 From: Los Angeles Member No.: 7,414 Region Association: Southern California |
Not sure if the 914 steering column is the same as my 86 Carrera 911 but on it I had a lose bushing near the steering wheel. Replaced it and all was fine and tight. I also question if your tires may have a flat spot on them. You said you did a balance but would it show up there.
Bob B |
amfab |
Jun 2 2017, 07:40 PM
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#18
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Member Group: Members Posts: 393 Joined: 17-May 16 From: Los Angeles Member No.: 20,004 Region Association: None |
I assume you scanned closely for tire bubble/bulges?
I had one on my Travelall that was on the inside and was hard to see even off the truck. I balanced the tires normally and they were ok, later I had them static balanced and the guy noticed it. A new front tires completely fixed it. Good luck -Andrew |
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