[Fot] Intake manifold, long runner

[Tim Murphy]

Kas,
    Thanks for the info on the brace.  We'll make one up and install it. 
Simple and effective.  "Elegant" as the engineers would say.

Tim
----- Original Message ----- 
From: "Kas Kastner" <kaskas at cox.net>
To: "Tim Murphy" <timmurph at fastbytes.com>; "Joe Boruch" 
<jaboruch at netzero.net>
Cc: <fot at autox.team.net>
Sent: Saturday, August 09, 2008 12:10 AM
Subject: Re: [Fot] Intake manifold, long runner


> You make a nice little brace between the two carbs with sheet metal 1/16" 
> plus then from the middle of the brace go down to the block at the flange 
> of the oil pan with a brace made of a 3/8" steel tube. I made an 
> adjustable screw at the bottom with a rubber pad on the end so that I 
> could put just a tiny bit of compression on the tube.  Worked like a 
> charm.
> ----- Original Message ----- 
> From: "Tim Murphy" <timmurph at fastbytes.com>
> To: "Joe Boruch" <jaboruch at netzero.net>
> Cc: <fot at autox.team.net>
> Sent: Friday, August 08, 2008 4:05 PM
> Subject: Re: [Fot] Intake manifold, long runner
>
>
>>I did just that.  Didn't have actual gussets put in but he did weld a nice 
>>big
>> filet between the flange and the runner on top.  Just about filled it in. 
>> I
>> think we will also fashion some sort of support, which was suggested to 
>> me but
>> I hadn't got to yet!!  I've paid the price.  Only problem now is the 
>> flatness
>> of the flanges to the engine.  I think I'll be okay using one of Uncle 
>> Jack's
>> "crushable" manifold gaskets.  If not I'll have to have the flange 
>> skimmed on
>> a mill to straighten it out.  Hate to take any more material off though.
>>    What did the original factory manifolds and heads do to match ports? 
>> Of
>> did they just live with the large port on the head and the smaller port 
>> in the
>> manifold on the late TR4's and the TR4A?  Really curious.
>>    Thanks for all of the input and Terry's website with all the head
>> described with drawings was really nice.
>>
>> Tim
>>
>> P.S. Any suggestions on a support for the intake manifold with a set of 4 
>> into
>> 1 headers?
>>  ----- Original Message -----
>>  From: Joe Boruch
>>  To: timmurph at fastbytes.com
>>  Cc: fot at autox.team.net
>>  Sent: Friday, August 08, 2008 8:13 AM
>>  Subject: Re: [Fot] Intake manifold, long runner
>>
>>
>>  It is common for the manifolds to crack, especially since they are no 
>> longer
>> supported by the exhaust manifold when using headers and because the 
>> walls are
>> thin due to port matching.  Have the cracks welded and then have gussets
>> welded to the top of each runner and they will not crack again.  Joe(B)
>>
>>  -- "Tim Murphy" <timmurph at fastbytes.com> wrote:
>>  Are there two different types of long runner intake manifolds?  I have 
>> one
>>  that has 1-9/16 inch dia. engine ports and one with 1-3/8 inch dia. 
>> engine
>>  ports.  Both are marked "STANPART 305744".  The one with the 1-9/16 
>> ports
>>  matches up to the head intake ports which are a bit bigger than 1-1/2 
>> inch.
>>  According to the Moss catalog there is only one long runner intake
>> manifold,
>>  which is used on late TR4's and TR4A's.  I either have to have the 
>> cracks
>>  welded in the 1-9/16 one that I have, open up the ports on the 1-3/8 one 
>> I
>>  have to match the head ports or find another 1-9/16 one to match the 
>> head
>>  ports.  Anybody have a 1-9/16 port manifold they are willing to part 
>> with?
>>  Are these all modified 1-3/8 port manifolds?
>>
>>  Thanks
>>  Tim
>>  1961 TR4 #317
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