Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
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.
 

Welcome Guest ( Log In | Register )

2 Pages V < 1 2  
 Reply to this topicStart new topic
> Carb Bellcrank Equation
Tbrown4x4
post Sep 13 2019, 03:02 AM
Post #21


Senior Member
***

Group: Members
Posts: 707
Joined: 13-May 14
From: Port Orchard, WA
Member No.: 17,338
Region Association: None
QUOTE(porschetub @ Sep 13 2019, 12:29 AM) *

QUOTE(johnhora @ Sep 13 2019, 03:53 PM) *

Source for the CSP Mark mentioned...

https://www2.cip1.com/ProductDetails.asp?Pr...129%2D941%2D400

out of stock at the moment but they get more all the time.

I heard they are no longer being made in the 914 application (IMG:style_emoticons/default/confused24.gif) .
Been searching for a customer for sometime,plenty in the UK but the shipping is mental for me.


I didn't think it was a 914 application, just a Type 4 application. I bought Mark's bracket and took the cable up through the front engine seal. I also lengthened the rods so they would line up with the carbs better.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Chi-town
post Sep 13 2019, 09:20 AM
Post #22


Senior Member
***

Group: Members
Posts: 851
Joined: 31-August 18
From: Disneyland
Member No.: 22,446
Region Association: Southern California
Type 4 with pancake fan I believe is the application description.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
914werke
post Sep 13 2019, 09:52 AM
Post #23


"I got blisters on me fingers"
**********

Group: Members
Posts: 11,294
Joined: 22-March 03
From: USofA
Member No.: 453
Region Association: Pacific Northwest
QUOTE(Tbrown4x4 @ Sep 13 2019, 02:02 AM) *
I bought Mark's bracket and took the cable up through the front engine seal. I also lengthened the rods so they would line up with the carbs better.

@Tbrown4x4 Thanks Todd that s info I was seeking (IMG:style_emoticons/default/beerchug.gif) How did you lengthen as the rods are L+R hand threaded, coupling nuts, weld?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
euro911
post Sep 13 2019, 10:54 AM
Post #24


Retired & living the dream. God help me if I wake up!
*****

Group: Members
Posts: 8,911
Joined: 2-December 06
From: So.Cal. & No.AZ (USA)
Member No.: 7,300
Region Association: Southern California
Wow, old thread.

I used the CSP bell crank linkage on my 2056, and it worked great.

Attached Image

Got it from Pierside Parts in Huntington Beach ... they had the best price ... https://www.piersideparts.net/CSP129941400.html
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Tbrown4x4
post Sep 13 2019, 05:28 PM
Post #25


Senior Member
***

Group: Members
Posts: 707
Joined: 13-May 14
From: Port Orchard, WA
Member No.: 17,338
Region Association: None
QUOTE(914werke @ Sep 13 2019, 08:52 AM) *

QUOTE(Tbrown4x4 @ Sep 13 2019, 02:02 AM) *
I bought Mark's bracket and took the cable up through the front engine seal. I also lengthened the rods so they would line up with the carbs better.

@Tbrown4x4 Thanks Todd that s info I was seeking (IMG:style_emoticons/default/beerchug.gif) How did you lengthen as the rods are L+R hand threaded, coupling nuts, weld?


Coupling nuts and threaded rod with jam nuts. I'm pretty sure ACE hardware had everything. It was only temporary until I could get a left hand tap and make longer stainless rods. That was 2 years ago!

@mikey914 As a side note, I'm testing 914rubber's throttle cable. It needs to be about 4 inches longer to be routed through the tins like OE.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
bbrock
post Sep 13 2019, 06:15 PM
Post #26


914 Guru
*****

Group: Members
Posts: 5,269
Joined: 17-February 17
From: Montana
Member No.: 20,845
Region Association: Rocky Mountains
QUOTE(Tbrown4x4 @ Sep 13 2019, 05:28 PM) *


@mikey914 As a side note, I'm testing 914rubber's throttle cable. It needs to be about 4 inches longer to be routed through the tins like OE.


@Tbrown4x4 thanks for this info. So I am clear, this would be about 4 inches longer than stock cable length for OE routing through the tin to connect with CSP linkage? I'm assuming Mark's cable is stock length. Also, this would be 4" longer for both cable and sheath, correct?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Tbrown4x4
post Sep 13 2019, 07:53 PM
Post #27


Senior Member
***

Group: Members
Posts: 707
Joined: 13-May 14
From: Port Orchard, WA
Member No.: 17,338
Region Association: None
Yes, 4 inches overall. That left a nice radius following the stock routing. I haven't reached out to Mark for a while, but I thought he already had a "carb length" cable ready. He was going to send me another to try out, but I think he's changing how the pedal end is swaged onto the cable.

I just thought of something: my car never had the "yellow" fabric cable retainer that goes on the ECM bracket. That could affect total length if someone had that on their car.

User is offlineProfile CardPM
Go to the top of the page
+Quote Post
porschetub
post Sep 13 2019, 11:24 PM
Post #28


Advanced Member
****

Group: Members
Posts: 4,877
Joined: 25-July 15
From: New Zealand
Member No.: 18,995
Region Association: None
Currently out of necessity building one from a chinese copy set up ,has no roller bearings in the bellcrack,and came with cup joints as per carbed VW/Porsche 911.
I have replaced the cup joints with mini CB Performance rose joints and set the geometry and it really works well and its so simple but you need to setup right IMO easier than a crossbar and less parts to wear.
Frankly McMark put me on to this and when you play with them you see why as compared to crossbar ,cheers man.
My CB Performance crossbar is up for sale no question,take it the way you want but bellcrank setup works.
[attachmentid=712046


Attached thumbnail(s)
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
porschetub
post Sep 14 2019, 11:26 PM
Post #29


Advanced Member
****

Group: Members
Posts: 4,877
Joined: 25-July 15
From: New Zealand
Member No.: 18,995
Region Association: None
Speedworks (?) have one but its a front mount that means not on bellhousing bolts,wouldn't work for me with short manifolds,looks like a fine piece however.

IMO any setup @ the flywheel end of the motor is better and the one I showed is that,finished setting up and its not easy but it works great .
Full throttle achieved and no 'tip in issues',hardest part is getting linkages the same length...fine tuning.
Attached Image
It works very well and The Dellorto's have great throttle return springs so no third spring needed.
Ready for a flaming (IMG:style_emoticons/default/av-943.gif) (IMG:style_emoticons/default/av-943.gif) .
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
« Next Oldest · 914World Garage · Next Newest »
 

2 Pages V < 1 2
Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 

Display Mode: Standard · Switch to: Linear+ · Switch to: Outline

Track this topic · Email this topic · Print this topic · Subscribe to this forum

- Lo-Fi Version Time is now: 6th July 2025 - 11:22 PM
Invision Power Board v9.1.4 © 2025  IPS, Inc.
All rights reserved 914World.com © since 2002
914World.com is the fastest growing online 914 community!
We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ...