perf-list-digest Friday, May 14 1999 Volume 02 : Number 115



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Ford Truck Enthusiasts - Performance
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In this issue:

FTE Perf - Re: H-Pipe or No H-Pipe
FTE Perf - pvc
RE: FTE Perf - pvc
FTE Perf - 460 Cooling
Re: FTE Perf - RE: H-pipe or no H-pipe

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Date: Thu, 13 May 1999 07:59:02 -0700 (PDT)
From: Bill
Subject: FTE Perf - Re: H-Pipe or No H-Pipe

Thanks guys, kinda looks like the vote is in that the H-Pipe, X-Pipe
(crossover pipe) is the way to go...

BTW, just got the Mustang Mach I stock manifolds in (351W 4V)... damn
they are big... I mean for stock cast iron manifolds, these thing are
huge... something like 2.75 inches at the collector.. yeah, the right
side is more restrictive than the left due to the need for stock setups
to stay away from the starter.. but far less restrictive than others I
have seen....

Since I will have the front clip off my '64 doing this swap (for needed
frame modifications, front end repair work, gas line rerouting, parking
brake cable mount relocation, etc.) I am going to try both the stock
manifolds and my Hedman shorties.. I know I will get more "power" from
the headers, but, I am running close to my budget limit.. With the cost
of ceramic coating, Stage 8 bolts (the kind that dont back out on
headers) a heat shield for my starter, I may just have to opt for the
stock manifolds... dunno .. vote is still out.. if I can hold off
getting an MSD ignition module this go around, I may just do the header
thing... let you know next Monday when this is all done (or at least
the motor swap part)...

Again, thanks for all the good info on the H-pipes..

Bill in Texas
'64 F100 Shortbox (351W/C4)

_________________________________________________________
Do You Yahoo!?
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Date: Thu, 13 May 1999 16:48:23 -0700
From: Neil Johnson
Subject: FTE Perf - pvc

Hello there,I just put in a performance 390 in my 72 F-100. When I
reached around the 500 mile mark, the motor started smoking out of the
passenger side. I pulled the plugs on the passenger bank and all were oil
soaked and carbon build up. The shop that built it, says that I have too
much vaccum in the pvc. They said that I'm sucking oil out of the valve
cover, into the carb, in the intake then back into the head. They told me
to restrict the vaccum in the pvc line. So I did and still smoking. I have
never heard of this kind of problem before. The cam wasn't supposed to
operate my power brakes...but it does. It's a Lunati cam..duration .050
is 230 gross duration is 292 gross lift is.544 lobe separation is 109. I
have an Edlebrock Perfprmer RPM intake (dual plane) Hope someone out there
can help! Thanks for your time.


Corbin
72 F-100 390

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Date: Thu, 13 May 1999 20:17:06 -0400
From: Sleddog
Subject: RE: FTE Perf - pvc

sounds to me like the problem is less a matter of too much vacuum, but
rather that there is too much accumilation of oil in the top end of the
engine. why though, i couldn't say having only limited FE experience with
their aweful oiling system. another possibility would be that you have the
vacuum routed the wrong why, or that you are getting severe blowby around
the rings. how's the oil look? give it a compression test and see how
that looks too.

sleddog

- ----------
From: Neil Johnson[SMTP:Mustang sedona.net]
Sent: Thursday, May 13, 1999 7:48 PM
To: perf-list ford-trucks.com
Subject: FTE Perf - pvc

Hello there,I just put in a performance 390 in my 72 F-100. When I
reached around the 500 mile mark, the motor started smoking out of the
passenger side. I pulled the plugs on the passenger bank and all were oil
soaked and carbon build up. The shop that built it, says that I have too
much vaccum in the pvc. They said that I'm sucking oil out of the valve
cover, into the carb, in the intake then back into the head. They told me
to restrict the vaccum in the pvc line. So I did and still smoking. I have
never heard of this kind of problem before. The cam wasn't supposed to
operate my power brakes...but it does. It's a Lunati cam..duration .050
is 230 gross duration is 292 gross lift is.544 lobe separation is 109. I
have an Edlebrock Perfprmer RPM intake (dual plane) Hope someone out there
can help! Thanks for your time.


Corbin
72 F-100 390

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Date: Thu, 13 May 1999 18:17:33 -0700
From: George Miller
Subject: FTE Perf - 460 Cooling

Normal surface street driving, under 2500rpm, shows 180-182 degrees on a
mechanical gauge. No A/C running. At an extended 10 miles plus 2800rpm
running session, 190-195. Newer 4-core, new cap/180 thermostat, six
blade stock fan, oil cooler, 50/50 collant/water and hi-volume water
pump. Mallory 9000 mechanical advance set for 24 degrees with 10 degrees
at the crank. Headers.

The plugs, Autolite 35s, are a consistent brown color with no trace of
white. I went 4% richer on the Edelbrock 750 with no running temp change
and very little plug color change.

Am I still running too lean? Do I need to go to a hotter plug? Any
suggestions would be appreciated before I go through the time and cost
of having the distributor recurved, half a dozen sets of plug changes,
rejetting the carb and consuming large quantities of my favorite
beverage while staring at the engine.

TIA

George Miller
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Date: Thu, 13 May 1999 22:04:44 -0400
From: Tim Turner
Subject: Re: FTE Perf - RE: H-pipe or no H-pipe

Dan Duke wrote:

> because of the Fords firing order.

Actually if you study the cylinder numbering and the firing order it's
pretty much the same between all the makes. Admittedly a good ear can
tell a Ford from a Ch**y or a Mopar though.

Plus it makes it sound sweet.

I like the Ford sound best, Mopar second and the others OK.


Tim
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End of perf-list-digest V2 #115
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