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GT40 Tech - Fueling, Electrics, & Engine Cooling Petrol, Electrons, & Water

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Old 17th February 2018, 01:01 PM   #1
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Distributor that works with TWM/Borla 8-stack

Hi guys,

I am in need for advice to find a distributor that fits under the fuel rails of the TWM/Borla 8-stack system. I ordered a MSD 8479 with the belief that it would fit but it did not. I do not want do any more mistakes again so send the question to you guys as I know that some of you are using this system ( with fuel rail in the middle ). Any advice is welcome:-)

Thanks
Henrik
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Old 17th February 2018, 02:28 PM   #2
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Re: Distributor that works with TWM/Borla 8-stack

Henrik,
Just sent you a PM about this. What plug wires are you using?

Here are two photos of my engine bay showing the 8578 MSD Distributor and its spacing below the Borla centerline fuel rail/regulator assembly...
GT40s.com - PhotoPlog - View File
GT40s.com - PhotoPlog - View File

Also, see this thread: http://www.gt40s.com/forum/507312-post2.html

Hope this helps...
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Old 17th February 2018, 03:30 PM   #3
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Re: Distributor that works with TWM/Borla 8-stack

Hi Tom,

Many thanks!! I have 331 and I guess I will use a standard silicon cable with a 90 degree spark plug terminal.

The clearance between block where the dizzy goes down and underside of regulator is 195 mm or 7.68 inch.

Thanks
Henrik
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Old 17th February 2018, 03:43 PM   #4
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Re: Distributor that works with TWM/Borla 8-stack

Quote:
Originally Posted by Cobrajet View Post
Henrik,
Just sent you a PM about this. What plug wires are you using?

Here are two photos of my engine bay showing the 8578 MSD Distributor and its spacing below the Borla centerline fuel rail/regulator assembly...
GT40s.com - PhotoPlog - View File
GT40s.com - PhotoPlog - View File

Also, see this thread: http://www.gt40s.com/forum/507312-post2.html

Hope this helps...
Thanks Tom

I did see that but what makes me suspicious towards MSD is that the stated the 8579 and 8479 to be 7 1/16 inch high and that the 84791 should be the same with the difference that it has a steel gear. I have now got it from MSD and it measures from block to top almost 8.3 inch! I do not know if I have missed something but I want to make sure I now order a new one that I am 100% sure that it fits!

Cheers
Henrik
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Old 18th February 2018, 03:28 AM   #5
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Re: Distributor that works with TWM/Borla 8-stack

OK - to be very specific - if someone has a MSD 8579 installed I would be very thankful if you can measure the height of it from where it goes down the block and up to the top with cables installed.

Thanks
Henrik
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Old 18th February 2018, 11:35 AM   #6
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Re: Distributor that works with TWM/Borla 8-stack

Henrik,
I can measure mine tomorrow to give you an idea. I have a 351W.
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Old 18th February 2018, 03:01 PM   #7
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Re: Distributor that works with TWM/Borla 8-stack

Hi Henrik the 8579 is 7 1/4" from block face to top of plug lead.
Regards Mick.
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Old 18th February 2018, 03:18 PM   #8
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Re: Distributor that works with TWM/Borla 8-stack

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Originally Posted by ssm View Post
Hi Henrik the 8579 is 7 1/4" from block face to top of plug lead.
Regards Mick.
Mick - big big thanks!

Cheers
Henrik
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Old 18th February 2018, 03:20 PM   #9
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Re: Distributor that works with TWM/Borla 8-stack

Quote:
Originally Posted by Cobrajet View Post
Henrik,
I can measure mine tomorrow to give you an idea. I have a 351W.
Thanks anyway Tom. Mick solved it! You have been ver helpful!

Cheers
Henrik
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Old 24th February 2018, 04:21 AM   #10
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Re: Distributor that works with TWM/Borla 8-stack

Hi, I had the same problem with holey dist. Talk to Ed at Borla (805 246 6045 )
I now have a MSD #8578 and have about an inch to spare.

Bill
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Old 24th March 2018, 11:39 PM   #11
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Re: Distributor that works with TWM/Borla 8-stack

What management system are you using? with Holley HP you should think about a dual sync, the part # 8578. Holley will love you for it.
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Old 24th March 2018, 11:52 PM   #12
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Re: Distributor that works with TWM/Borla 8-stack

O M G the part # for the Holley dist. is 565-111. 8578 is a low pro MSD
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