[DeTomaso] NEED SOURCE FOR 180 DEGREE HEADERS FABRICATION

[GW]

As I mentioned last week there seems to be a limit in the size of pipe 
that can go through the suspension. I really did not want the 180's 
because I would like the trunk space and I don't want them in the way of 
everything.

I fabbed up a set to go over the suspension. The long tubes are not 
attached yet, they just give an idea of where they are going:

http://www.rc-tech.net/cars/panttransam/1905/ex/exb3.jpg
http://www.rc-tech.net/cars/panttransam/1905/ex/exb2.jpg

These are two-2.25" pipes going back. With the wheel above the frame 
their is still room. I don't think a real adequate clearance test will 
be done till I get it on the road and see if I have indeed made enough 
clearance for engine shift and suspension travel.

This is a 400 stroked 434 so the heads are an inch higher and out. My 
plan at this point is to:
-build a test stand to get everything running again
-get the Deamon carb partly tuned
-build at least one different Webber manifold and get the Webbers partly 
tuned (I have ideas of a different type of manifold I may try as well)

Once the engine is up and going with general tuning done, take to dyno 
shop and run the old headers, the new headers and run each intake/Carb 
with both headers to see the difference.

I got the connectors, O2 Bungs and EGT Bungs to finish the exhaust but I 
am doing paper work today. We'll see if I make it out. I am almost out 
of gas on the TIG and I am flying this weekend. Hope to finish the 
headers by the end of the weekend then start on an engine test stand.

Gary



Daniel C Jones wrote:
>> Has anyone ever dynoed an engine with a GOOD set of headers and a set of
>> 180's just to see the difference (no other changes).
>>     
>
> If they will fit over our dyno, that is one of the planned tests for the
> dyno project.  Larry (in Cleveland) is providing the 180 headers that
> Kirk borrowed for his dyno test.  I think they made the best power in
> that test but I don't have the details.  In my own dyno tests, header
> differences have been far out-weighed by muffler differences.  There's
> a possibility we'll have two 180 versus 4-into-1 header tests, one on a
> 351C-4V and one on an IR EFI 416 aluminum SVO motor with C3H raised port
> Yate heads.  With the 351C-4V engine, it will be a 3 way test with 180 Pantera
> headers, Pantera GTS headers and Mustang long tube headers.  Vizard's
> testing indicates 180's can make more power but are much more sensitive
> to equal length than bank separated 4-into-1 headers.  I'd like to also
> test a true set of tri-y headers (not just the tri-y collector of the
> GTS headers) but have not yet come up with a set of those.
>
> Speaking of the dyno project, I have set up a separate bank account
> and a Pay Pal account to accept donations electronically.  Pay Pal
> said it will take 3 to 5 days to verify the account.  I'm heading
> out of town for a few days on personal business and will post an
> update on the dyno project and send the Pay Pal info to those who
> request it then.
>
> Dan Jones
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