 2056 cut out at 5500- 6000 rpm |
|
|
|
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. |
|
|
| jmargush |
 Jun 22 2015, 08:33 AM
Post
#1
|
|
Member  Group: Members Posts: 470 Joined: 8-June 04 From: Goshen, IN Member No.: 2,176  |
Second season on my 2056 with 9590 Raby cam and heads done by Len Hoffman. Stock L-jet injection.
When I run the car up to 5500-6000 rpm it cuts out like there is a revlimiter (which there isn't) or the valves are floating. Could this be an issue of the L-jet injectors not supplying enough fuel at those conditions? |
   |
 
|
  |
Replies
| ChrisFoley |
Jun 23 2015, 11:02 AM
Post
#2
|
|
I am Tangerine Racing Group: Members Posts: 7,986 Joined: 29-January 03 From: Bolton, CT Member No.: 209 Region Association: None 
|
We have a 2056 L-jet car here right now.
It sounds like the wiper on your AFM is going off the end of the board at WOT. Add a few clicks of tension on the flapper spring, then retune the wiper position. You'll probably have to re-connect a wideband O2 meter to get the wiper where it works best. |
|
|
|
Posts in this topic
jmargush 2056 cut out at 5500- 6000 rpm Jun 22 2015, 08:33 AM
stugray Do you have dual valve springs?
If not my car cut... Jun 22 2015, 08:45 AM jmargush Running pertronix
Coil is probably an original Bos... Jun 22 2015, 06:20 PM stugray It could be your coil or basically any part of the... Jun 22 2015, 07:12 PM jmargush The distributor is pretty good as far as wiggle I ... Jun 22 2015, 07:47 PM Mike Bellis Fuel starvation?
Auto crossing can send all the f... Jun 22 2015, 08:41 PM messix L-jet does have a rev limiter, it's in one of ... Jun 22 2015, 09:34 PM colingreene when mine did this it was the pertronics, is the t... Jun 23 2015, 12:33 AM jmargush Haven't noticed any weird signals in the tach.... Jun 23 2015, 06:08 AM
Bleyseng Sure its not valve float with stock springs? Jun 23 2015, 07:36 PM |
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 9th May 2025 - 07:15 PM |
Invision Power Board
v9.1.4 © 2025 IPS, Inc.