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Subject: perf-list-digest V2 #287
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perf-list-digest Sunday, November 7 1999 Volume 02 : Number 287



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Ford Truck Enthusiasts - Performance
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In this issue:

Re: FTE Perf - pinging
FTE Perf - Spark plug gap
Re: FTE Perf - Spark plug gap
Re: FTE Perf - 79 f100 stearing
FTE Perf - Pinging problem

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Date: Sat, 06 Nov 1999 07:52:03 -0500
From: "Thomas J. Teixeira"
Subject: Re: FTE Perf - pinging

At 10:10 PM 11/05/1999 -0600, Joel Thomas wrote:
>I have a 351W
>when the engine warms up it has a very bad pinging noise in 3rd and 4th
>gears

[stuff deleted]

>the headers do have bad leaks in the gaskets would that cause it??

Yes, it could. An exhaust leak does sound like a ping. And since you say
you have taken the carpet and floor covering out, everything is going to
sound extra louds.


Tom Teixeira '35 pickup http://www.ford-trucks.com//lc/lc.php?action=do&link=http://world.std.com/~tjt/35Pickup.html

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Date: Sat, 6 Nov 1999 09:42:51 -0500
From: Paul M Radecki
Subject: FTE Perf - Spark plug gap

In an attempt to track down an electrical gremlin, I've replaced
most of my ignition system (it turned out to be the TFI module). As a
result, I now have an aftermarket coil (MSD Blaster) and wires (Jacobs)
installed. The literature I received from Jacobs said that, given a
hotter coil and better wires, I would realize better mileage and power if
I increased my plug gaps over factory spec. Is this BS? Is it something
that will only benefit a 500hp pro-street car? Or is anyone out there in
the real world benefitting from a bigger spark? The engine is a '94
300ci, fuel injected, speed density metered, mostly stock except for a
K&N filter and the aforementioned ignition parts. Since I don't have
access to a dyno (nor the inclination to do lots of trial and error
testing on a truck that will never be raced) does anyone have a ballpark
recommendation?

lordjanusz juno.com
'94 F150 300ci
'73 F100 FE in pieces
'98 VT1100 Aero riding season almost over :-(
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Date: Sat, 06 Nov 1999 07:17:26 -0800
From: George Miller
Subject: Re: FTE Perf - Spark plug gap

I don't know what the factory spec gap is but rule of thumb for
electronic ignitions is .045. Then try larger smaller in .002 increments
to see what your engine likes.

George Miller

Paul M Radecki wrote:
>
> In an attempt to track down an electrical gremlin, I've replaced
> most of my ignition system (it turned out to be the TFI module). As a
> result, I now have an aftermarket coil (MSD Blaster) and wires (Jacobs)
> installed. The literature I received from Jacobs said that, given a
> hotter coil and better wires, I would realize better mileage and power if
> I increased my plug gaps over factory spec. Is this BS? Is it something
> that will only benefit a 500hp pro-street car? Or is anyone out there in
> the real world benefitting from a bigger spark? The engine is a '94
> 300ci, fuel injected, speed density metered, mostly stock except for a
> K&N filter and the aforementioned ignition parts. Since I don't have
> access to a dyno (nor the inclination to do lots of trial and error
> testing on a truck that will never be raced) does anyone have a ballpark
> recommendation?
>
> lordjanusz juno.com
> '94 F150 300ci
> '73 F100 FE in pieces
> '98 VT1100 Aero riding season almost over :-(
> ___________________________________________________________________
> Get the Internet just the way you want it.
> Free software, free e-mail, and free Internet access for a month!
> Try Juno Web: http://www.ford-trucks.com//lc/lc.php?action=do&link=http://dl.www.juno.com/dynoget/tagj.
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Date: Sat, 6 Nov 1999 15:23:53 -0500
From: "msaur"
Subject: Re: FTE Perf - 79 f100 stearing

Thanks I will have that checked.
msaur odyssey.on.ca

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Date: Sat, 6 Nov 1999 21:48:01 -0600
From: "Joel Thomas"
Subject: FTE Perf - Pinging problem

thanks everybody for their help but problem is now solved.

thanks
I had the timing set at 10BTDC factory set up
and I have minor mods
so i took out the distributor and rotated the gear and put it back
in(because there was no adjustment left it was hitting the intake manifold)
and adjusted to 9BTDC and the pinging went away and the truck drives a lot
better which is wierd it usually drives worse to retard the timing more.
so thanks for your help but the problem it fixed even running 87 octane now.

thnaks again

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End of perf-list-digest V2 #287
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