Engine and Transmission Tech

tips, technology, tools and techniques related to vehicle driveline components

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Moderator
Curtis Jacobson
Portland Oregon
(4576 posts)

Registered:
10/12/2007 02:16AM

Main British Car:
71 MGBGT, Buick 215

authors avatar
Mystery plumbing
Posted by: Moderator
Date: August 08, 2013 04:14PM

I've got a bunch of photos to caption...

This one has me wondering:
http://www.britishv8.org/Articles/Images-V21-2/Speedway-SmithMuseumOfAmericanSpeed-ND.jpg

What are those four black hoses for?


flitner
John Fenner
Miami Fl
(168 posts)

Registered:
03/11/2010 10:58AM

Main British Car:
1972 MGB 350 CHEVY

Re: Mystery plumbing
Posted by: flitner
Date: August 08, 2013 05:29PM

Seeing they are inline with the intake ports, and resemble Hilborn or Ron's Racing injection lines, I'm shooting for fuel injectors.


DiDueColpi
Fred Key
West coast - Canada
(1365 posts)

Registered:
05/14/2010 03:06AM

Main British Car:
I really thought that I'd be an action figure by now!

authors avatar
Re: Mystery plumbing
Posted by: DiDueColpi
Date: August 08, 2013 06:33PM

I've seen nitrous and propane plumbed like that before.
But that picture just doesn't look right.
Possibly some racers psych?


MG four six eight
Bill Jacobson
Wa state
(324 posts)

Registered:
10/23/2007 02:15AM

Main British Car:
73 MGB Buick 215, Eaton/GM supercharger

Re: Mystery plumbing
Posted by: MG four six eight
Date: August 08, 2013 08:56PM

Just a guess here, but I think that they may oil scavage lines for the dry sump system. I believe circle track cars use it to pull the drain back oil out of the head during high G cornering.

Bill



Edited 1 time(s). Last edit at 08/08/2013 08:57PM by MG four six eight.


Moderator
Curtis Jacobson
Portland Oregon
(4576 posts)

Registered:
10/12/2007 02:16AM

Main British Car:
71 MGBGT, Buick 215

authors avatar
Re: Mystery plumbing
Posted by: Moderator
Date: August 08, 2013 09:12PM

That sounds plausible. I probably should have said that this engine appeared in Tony Stewart's old Silver Crown Sprint car...


DiDueColpi
Fred Key
West coast - Canada
(1365 posts)

Registered:
05/14/2010 03:06AM

Main British Car:
I really thought that I'd be an action figure by now!

authors avatar
Re: Mystery plumbing
Posted by: DiDueColpi
Date: August 08, 2013 10:33PM

OK,OK,OK!
Memory bank triggered.
Those are methanol injectors.
They run through the side of the head to help vaporization of the alcohol.
The injector also needs to be as near to the valve as possible due to the huge amount of fuel injected. They displace too much air if used higher up in the intake.
Cheers
Fred


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