[DeTomaso] Oil Pressure outlet

[B Hower]

Will,
 
I think that is good input --- but for clarification I have a question -- when you say loosing cylinder 3 & 7, do you mean rod bearings?
 
Bud #3400 

--- On Mon, 7/4/11, Will Kooiman <wkooiman at earthlink.net> wrote:


From: Will Kooiman <wkooiman at earthlink.net>
Subject: Re: [DeTomaso] Oil Pressure outlet
To: detomaso at realbig.com
Date: Monday, July 4, 2011, 2:32 AM


I've posted about this before.

There was a guy on the 351c forum that plumbed 5 gauges.  He saw drops in
the middle gauges when he revved over 8K.  The rest of the gauges were okay.
He plumbed the front-to-back line, and tried it again.  With the line, the
middle gauges were okay.  He did this because he kept loosing cylinders 3
and 7 during drag racing.

Here is the link:

http://www.network54.com/Forum/119419/thread/1230085467/13.5+GPM

I have the front-to-back line, plus I enlarged the hole in the rear sender
to the next drill size.  I think it's 1/2".  I also enlarged the threads to
3/8" pipe.  The front-to-back line is AN-8, and it runs down the center of
the Weber intake, with an adel clamp to keep it secure.

-----Original Message-----
From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com] On
Behalf Of corey price
Sent: Sunday, July 03, 2011 9:15 PM
To: detomaso at realbig.com
Subject: Re: [DeTomaso] Oil Pressure outlet

Guys,

Does the pressure read the same when the engine is under stress?  I think
that would be the ideal time to check the pressure differential between
ports.  The rear port would seem to be of more importance than the front
when trying to read pressure at the end of the galleries that feed the
mains.  I wasn't particularly surprised that the pressure was the same front
or back if the engine isn't stressed.

Just my two cents.

Corey


On Jul 3, 2011, at 3:41 PM, John Taphorn wrote:

> Jack
> 
> Years back, Dan Mixon and I ran a test on my engine to determine whether 
> that oil pressure would read differently between the two ports.  In our 
> test, it was identical.
> 
> JT
> ----- Original Message ----- 
> From: <JDeRyke at aol.com>
> To: <wdemelo at cogeco.ca>; <Detomaso at realbig.com>
> Sent: Sunday, July 03, 2011 12:11 PM
> Subject: Re: [DeTomaso] Oil Pressure outlet
> 
> 
>> In a message dated 7/3/11 5:59:02 AM, wdemelo at cogeco.ca writes:
>> 
>>> I want to install another oil press gauge. I' m restricted from using
the
>>> port where the original sender is mounted because of my fuel rail
>>> crossover.
>>> Where is another port I can pick this up from and what size is the port?
>>> 
>> 
>> The simplest is the port next to the fuel pump, but that pressure is
>> directly out of the pump so it won't relate to anything you know about 
>> your
>> engine's oil pressure or any of your friends: it will be 15-30 psi
higher. 
>> Same
>> thread as the rear port and you can use a stock 351-W oil pressure 
>> extension.
>> But I would try real hard to pick up the pressure at the stock position-
>> maybe with a hose to the port. Good luck- J Deryke
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