 Rev limiting rotors |
|
|
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
|
  |
| Sea Dragon 914 |
 Sep 10 2017, 12:13 PM
Post
#1
|
|
Member  Group: Members Posts: 114 Joined: 26-February 03 Member No.: 358 Region Association: Northern California  |
I'm looking for a Bosche rev limiting rotor for my 914 2.0. I recall there was one that was either 6300 or 6500 rpm. Does anyone know where to find them and what the part number is?
|
   |
 
|
| Mark Henry |
Sep 10 2017, 12:25 PM
Post
#2
|
|
that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
QUOTE(Sea Dragon 914 @ Sep 10 2017, 02:13 PM)  I'm looking for a Bosche rev limiting rotor for my 914 2.0. I recall there was one that was either 6300 or 6500 rpm. Does anyone know where to find them and what the part number is? I imagine Pelicanparts have them. Even in race trim the type 4 runs out of torque at 5800rpm. 63-6500rpm will require dual springs, HD valvetrain, balanced engine, etc. Do not use these rotors as a shift indicator, loading and unloading the engine with a rev-limiter will destroy your bearings, etc in short order if you use it this way. A rev-limiter is the lesser of two evils, a last ditch protection device. |
|
|
|
| mgphoto |
Sep 10 2017, 12:58 PM
Post
#3
|
|
"If there is a mistake it will find me" Group: Members Posts: 1,366 Joined: 1-April 09 From: Los Angeles, CA Member No.: 10,225 Region Association: Southern California |
911 rotor cuts out at 6300, fits the shaft.
Mike |
|
|
|
| 914Sixer |
Sep 10 2017, 01:08 PM
Post
#4
|
|
914 Guru Group: Members Posts: 9,040 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region 
|
914 rotors are set at 5800 rpm, same as the redline on the tachometer. Autohausaz.com $30.77
|
|
|
|
| injunmort |
Sep 10 2017, 02:58 PM
Post
#5
|
|
Senior Member Group: Members Posts: 1,024 Joined: 12-April 10 From: sugarloaf ny Member No.: 11,604 Region Association: North East States |
partsgeek
|
|
|
|
| DM_2000 |
Sep 10 2017, 03:32 PM
Post
#6
|
|
Member Group: Members Posts: 217 Joined: 16-August 17 From: PA Member No.: 21,351 Region Association: None |
Something to remember as it sometimes get lost. A rev limiter won't help a mechanical over rev ( 3 / 2 rather than a 3 / 4 ) or if a shift is missed completely and inertia carries the motor past the rev limiter.
|
|
|
|
| Sea Dragon 914 |
Sep 10 2017, 05:44 PM
Post
#7
|
|
Member Group: Members Posts: 114 Joined: 26-February 03 Member No.: 358 Region Association: Northern California |
Thanks. I thought the old 911 rotors worked but I wasn't sure. I have an engine that is balanced with mild cam and heavy springs. Just need it as as safety measure.
My throttle cable stuck and the RPMs shot to 7k. I replaced the cable and everything seems ok. I don't think there is any damage as it feels like I still have 4 cylinders firimg. |
|
|
|
|
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 2nd January 2025 - 10:52 AM |
Invision Power Board
v9.1.4 © 2025 IPS, Inc.