which computer is best?

stangbang · 06-01-2001, 11:32 PM

for performance which computer is better? the hardtop 5-speed or the convertible 5-speed EEC IV?

mjones302 · 06-02-2001, 03:55 AM

If I remember correct that computer with the code A9L was the most aggressive computer, but they are all relatively the same. You might see .2 sec difference between different computers.

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Unit 5302 · 06-02-2001, 01:09 PM

The A9L 5spd computer, and the A9P (best) automatic computer. The auto computer can be used on 5spd models, just bolt it in, but the reverse isn't true.

Not communicative!! Just like subrattion, hehe.

The auto computers have more aggressive fuel/timing curves.

Oh, btw, two tenths is a huge gain, especially for just a computer. You spend what, $50 for a junkyard computer, pickup 2 tenths (20hp). That's great power for money ratio.

exgmguy · 06-03-2001, 03:57 PM

He beat me to it. The A9P automatic computer.

It's what i've got.

------------------
1988 Mustang GT
12.0 @ 122
1992 BadAzz Wrangler
1993 Explorer

91evilstang · 06-04-2001, 02:16 AM

The A9L 5spd computer, and the A9P (best) automatic computer. The auto computer can be used on 5spd models, just bolt it in, but the reverse isn't true.
Not communicative!! Just like subrattion, hehe.

The auto computers have more aggressive fuel/timing curves.

actualy the 5speed computers have the more agressive fuel/timing and i just picked up a consistent tenth by switching my A9p to an A9L.also any computer works in any transmission combo.

------------------
91GT Flowmaster 2 chambers,off road H pipe,mac equalength headers,F303 cam,high lift valve springs ,svo 1.6 roller rockers,16*timing,410's,BBK cold air kit,hurst shifter, Pullys,World class T5 MSD 6al box. Ran 13.5@101 with stock headers and air box.

Mach 1 · 06-04-2001, 03:00 AM

evilstang is correct. the auto computers have something different in the idle setting due to the torque converter. there is a load on the auto car when in drive and idling, there is no load on a 5 speed car when the clutch is in or in neutral. that is the only difference in the computers as far as I know.

theres so much crap out there, does anyone really know the truth?

As Mulder would say..."the truth is out there"

------------------
1993 GT/AOD
'93 Mustang GT

06-01-2001, 11:32 PM	#1
stangbang Registered Member Join Date: Oct 1999 Location: brunswick,ohio Posts: 135	which computer is best? for performance which computer is better? the hardtop 5-speed or the convertible 5-speed EEC IV?

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06-02-2001, 03:55 AM	#2
mjones302 Registered Member Join Date: Sep 1998 Location: Kansas City, MO USA Posts: 2	If I remember correct that computer with the code A9L was the most aggressive computer, but they are all relatively the same. You might see .2 sec difference between different computers. ------------------

06-02-2001, 01:09 PM	#3
Unit 5302 Registered Member Join Date: May 1999 Posts: 5,246	The A9L 5spd computer, and the A9P (best) automatic computer. The auto computer can be used on 5spd models, just bolt it in, but the reverse isn't true. Not communicative!! Just like subrattion, hehe. The auto computers have more aggressive fuel/timing curves. Oh, btw, two tenths is a huge gain, especially for just a computer. You spend what, $50 for a junkyard computer, pickup 2 tenths (20hp). That's great power for money ratio.

06-03-2001, 03:57 PM	#4
exgmguy Registered Member Join Date: Feb 1999 Location: Utica, Michigan Posts: 2,631	He beat me to it. The A9P automatic computer. It's what i've got. ------------------ 1988 Mustang GT 12.0 @ 122 1992 BadAzz Wrangler 1993 Explorer

06-04-2001, 02:16 AM	#5
91evilstang Registered Member Join Date: Mar 2001 Location: lafayette IN USA Posts: 48	The A9L 5spd computer, and the A9P (best) automatic computer. The auto computer can be used on 5spd models, just bolt it in, but the reverse isn't true. Not communicative!! Just like subrattion, hehe. The auto computers have more aggressive fuel/timing curves. actualy the 5speed computers have the more agressive fuel/timing and i just picked up a consistent tenth by switching my A9p to an A9L.also any computer works in any transmission combo. ------------------ 91GT Flowmaster 2 chambers,off road H pipe,mac equalength headers,F303 cam,high lift valve springs ,svo 1.6 roller rockers,16*timing,410's,BBK cold air kit,hurst shifter, Pullys,World class T5 MSD 6al box. Ran 13.5@101 with stock headers and air box.

06-04-2001, 03:00 AM	#6
Mach 1 Registered Member Join Date: May 1999 Location: Georgia Posts: 3,866	evilstang is correct. the auto computers have something different in the idle setting due to the torque converter. there is a load on the auto car when in drive and idling, there is no load on a 5 speed car when the clutch is in or in neutral. that is the only difference in the computers as far as I know. theres so much crap out there, does anyone really know the truth? As Mulder would say..."the truth is out there" ------------------ 1993 GT/AOD '93 Mustang GT