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Date: Wed, 17 Sep 1997 13:04:04 -0600 (MDT)
From: owner-fordtrucks-digest ListService.net (fordtrucks-digest)
To: fordtrucks-digest ListService.net
Subject: fordtrucks-digest V1 #222
Reply-To: fordtrucks ListService.net
Sender: owner-fordtrucks-digest ListService.net


fordtrucks-digest Wednesday, September 17 1997 Volume 01 : Number 222



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Ford Truck Enthusiasts - 1979 And Older Trucks Digest
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In this issue:

RE: Dual Exhaust for my 74 ["Gary, 78 BBB" ]
Re: Intake manifolds ["Gary, 78 BBB" ]
Re: Riddle me this!!!! ["Gary, 78 BBB" ]
Re: 460 intake suggestions ["Gary, 78 BBB" ]
RE: 460 intake suggestions [Sleddog ]
RE: 460 performance info [Sleddog ]
F350 Booster Use???Brakes?? [Joe D ]
Add on to brake question.. [Joe D ]
FMX shifting [John Strauss ]
Fall Carlisle Car Show [Joe D ]
Re: Question For Group ["Payne, Kenneth" ]
Re: C6 never making it to 3rd, missing shift linkage? ["John F. Bauer III]
RE: 460 intake suggestions ["Gary, 78 BBB" ]
Re: C6 never making it to 3rd, missing shift linkage? ["Gary, 78 BBB"
Re: Riddle me this!!!! (Spare tire carrier) [Tom Hogan
Re: Riddle me this!!!! [dave.williams chaos.lrk.ar.us (Dave Williams)]
Re: PVS Switch, 351M ["Dave Resch"]

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Date: Wed, 17 Sep 1997 07:47:51 +0000
From: "Gary, 78 BBB"
Subject: RE: Dual Exhaust for my 74

> From: Tom Hogan
> Subject: RE: Dual Exhaust for my 74
> Date: Tue, 16 Sep 1997 16:35:43 -0700

> question about matching the two sides in a dual setup. Would you
> want the side servicing the driver's side of the engine to have the
> muffler further forward than the passenger side so that both
> mufflers are equal distance from the engine? Just some ideas.

Anything you do to even up the pressure pulses in both pipes is going
to help performance but such details in the exhaust usually aren't
especially significant in touring applications. Since this would be
a custom job and just as easy to do as not, it might not hurt to go
with it but the balance tube is more important IMHO. Unless you are
tuning for a specific rpm the length of the pipes or where the
pressure points are in them will probably be insignificant. As I
mentioned earlier, the new trucks have very short exhaust systems
compared to older versions.

I once read about a test which concluded that 80 feet of x size
pipe was perfect for max torque at x rpm in a stationary engine.
This had to do with resonance tuning and was based on the law of
physics having to do with open ended tubes and sound waves and the
engine was run at one rpm only for testing. The scientists discerned
from these tests that there is no way to completely optimize the tune
for low speed torque in a motor vehicle since the exhaust pipe would
be too short anyway. At best the exhaust system is a weighted
compromise based on the intended use.

Motorcycles use megaphones to do somewhat the same thing. The
internal cone shape caused the sound waves to travel further than
they could in a pipe increasing the time element helping low end
torque somewhat AIR.



The swift of foot and slow of wit
have more off road experiences

- -- Gary --

------------------------------

Date: Wed, 17 Sep 1997 07:59:03 +0000
From: "Gary, 78 BBB"
Subject: Re: Intake manifolds

> From: Tom Hogan
> Subject: Intake manifolds
> Date: Tue, 16 Sep 1997 17:06:09 -0700

> weeks for a response though. There are only 3 people manning the
> question board on a voluteer basis. They do eventually get around

This is one problem and below is another and there is a third, most
of the tech guys are reading from a computer screen and have no
personal experience with your application so they can only give you
guide lines. Some of the Summit and Jeggs guys OTOH have race cars
and can tell you from experience in some cases. Holley has been
helpful to me but they still can't really iron out the problem that's
why they have the tech chat room/mail list so you can hear about
other peoples experiences.

> public tech discussion. Usually the tech guys don't provide the
> answers though so take any advice with a grain of salt. Holley is at
> www.holley.com

I called a cam company and discussed my plan for a roller cam and the
fact that no one seems to make a low rpm version for the 460 and was
told that the 460 makes so much torque you won't miss the little bit
at the bottom and it "probably" makes more torque at the bottom than
a stock cam anyway but again he was guessing, but based on what?
These aren't facts just conjecture. I can do that all by myself :-(


The swift of foot and slow of wit
have more off road experiences

- -- Gary --

------------------------------

Date: Wed, 17 Sep 1997 08:13:15 +0000
From: "Gary, 78 BBB"
Subject: Re: Riddle me this!!!!

> Date: Tue, 16 Sep 1997 21:07:00 -0500
> From: dave.williams chaos.lrk.ar.us (Dave Williams)
> Subject: Re: Riddle me this!!!!

> tire out and back under the truck. The truck came with a big
> stamped steel thingamabob, a couple of rods, and a funky looking
> nut. It looks like the idea is to hang the steel bracket from one
> rod, slide the tire up onto it somehow, heave it up against the
> frame with superhuman strength, feed the other rod through, and run
> the nut up to hold it.

Ever notice that NOBODY uses that for the spare tire? Where do you
see all the truck spares? Lying loose in the bed if they have one
at all or on the front mounted thingy that robs the radiator of much
needed air. Must be a reason for that since all truckers are
gorillas it can't be that its too difficult to do can it?

The swift of foot and slow of wit
have more off road experiences

- -- Gary --

------------------------------

Date: Wed, 17 Sep 1997 08:30:29 +0000
From: "Gary, 78 BBB"
Subject: Re: 460 intake suggestions

> From: "Mike & Evan"
> Subject: 460 intake suggestions
> Date: Tue, 16 Sep 1997 08:35:34 -0500

> Hoping the 460 moves my truck well, been bragging about it at work
> for
> months and nobody has even seen it. All my co-workers are Ch*vy or
> D*dge people and think I'm nuts, they think the stock 460 is gonna
> be a dog and eat me alive in gas bills.

Unfortunately power does have a price. So far my 12 mpg seems to be
holding up as the best anyone is getting with the 460 and that's with
2.75 gears and wide ratio C-6 with stock spread bore carb and
manifold. The headers didn't seem to help at all and in fact I think
I lost 1/2 mpg with them due to the fact that I can't rejet the OEM
> carb. When I redo the engine I plan to get the Edelbrock carb and
manifold and roller cam along with port matching and knocking the
humps out of the exhaust ports. I'm anticipating a small gain in mpg
with this setup but only a small one. My goal is to get 15 in the
truck and still have some performance. I think this is doable but
not easily doable :-(

Bigger tires typically eat up mpg too due to increased rolling
resistance and wind resistance no matter what gearing you use :-(

Maybe when my daughter's 97 F-150 grows stale I'll buy it off of her
and put in the 460. With better aerodynamics I'll probly get 20 :-)

The swift of foot and slow of wit
have more off road experiences

- -- Gary --

------------------------------

Date: Wed, 17 Sep 1997 08:16:37 -0400
From: Sleddog
Subject: RE: 460 intake suggestions

without bolting them together, there is no way to know how the ports are
lined up. one cannot just make a template from one part and just put it on
the other. the bolting of parts together is the big "trick" to trult
getting matched ports.

sleddog

- ----------
From: Tom Hogan[SMTP:tom.hogan kla-tencor.com]
Sent: Tuesday, September 16, 1997 7:56 PM
To: 'Ford Trucks'
Subject: Re: 460 intake suggestions

Just an idea on port matching. Use thin cardboard (poster board) cut it
slightly larger than the intake manifold surface that mates to the head.
Then ink the mating surface and press the cardboard onto the ink to
transfer an image of the intake ports to the cardboard. Cut out the
intake ports with an exacto knife and then you have a template that
matches the port size of the manifold.


- ------------------------------------------------------------------------
- ----------------

Date: Tue, 16 Sep 1997 11:04:04 +0000
From: "Gary, 78 BBB"
Subject: Re: 460 intake suggestions

> Date: Mon, 15 Sep 1997 02:16:22 -0600
> From: Woody
> Subject: Re: 460 intake suggestions

> > intakes) you should port match the heads. match the heads to the
> > intake, not both parts to the gasket.
>
> Sounds good in theory but how do you know how they match when bolted
> together--in other words if you don't use a gasket as the
> intermediary reference, how do you match intake port to head runner?

I was a little curious about that myself?

The swift of foot and slow of wit
have more off road experiences

- - -- Gary --








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------------------------------

Date: Wed, 17 Sep 1997 08:25:40 -0400
From: Sleddog
Subject: RE: 460 performance info

i ran for awhile a 68-69 460 with same heads. 11.5:1 compression and only
under extreme conditions (foe example running wot for 20 minutes thru 3
foot deep snow on forest trails.) did it ever start pinging or otherwise
carrying on. i ran 87 octane much of the time. 92 or better if i knew i
needed it or if i had the extra cash.

can the aluminum CJ heads be considered stock?

sleddog

- ----------
From: danadeb pacbell.net[SMTP:danadeb pacbell.net]
Sent: Tuesday, September 16, 1997 9:46 PM
To: Ford Folks
Subject: 460 performance info

Sleddog,

Have you or anyone else you know tried early 460 heads on a late motor
( netting about an 11.5 to 1 compression ratio ) with street gas? (87-92
octane ) Does it work? I live in California and unless the Smogcheck II
exemption for pre 73 cars goes through, I am stuck using stock parts for
more performance.

Thanks

Dana






+-------------- Ford Truck Enthusiasts - 1979 and Older --------------+
| Send posts to fordtrucks listservice.net, |
| Send Unsubscribe requests to fordtrucks-request listservice.net |
+-- Visit Our Web Site: http://www.ford-trucks.com/ --+

------------------------------

Date: Wed, 17 Sep 1997 08:48:58 -0400
From: Joe D
Subject: F350 Booster Use???Brakes??

Can one use the F350 Brake booster and master cylinder to add power
brakes to a f100???I plan on adding a dana 44 with discs up front..
Or did the f350 use a differnt type of booster/cylinder????I found
a junkyard with about 13 f-100-f350's in it..2 of the 350's have power
brake setups still on them...Also will 73-75 booster cylinders work????
Thakns
Joe

------------------------------

Date: Wed, 17 Sep 1997 08:51:04 -0400
From: Joe D
Subject: Add on to brake question..

I forgot the years...67-72 are the years I'm talking about for the
350's
Joe

------------------------------

Date: Wed, 17 Sep 1997 07:55:50 -0500
From: John Strauss
Subject: FMX shifting

>My FMX was doing the opposite when I got it on the road. It was skipping
>over 2nd--shifting too early. I fix it by messing with this adjustment.
>
>Does anybody know if 3rd is operated by a band???
>
....

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