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Topic: Mustang H.O computer in T-bird (Read 3047 times) previous topic - next topic

Mustang H.O computer in T-bird

Well I got my computer today. Put it in the car no more idleing problems:bowdown: but I did notice it raised the base timing 2 deg with the spout out a bit with it in.


before

12 deg out

22 deg in


now

14 deg out

30 deg in


car seems to run much better and everything including the trip minder still works. How much more agressive are the spark maps in the mustang computer? I now have detonation around 2,500 at WOT I am going to start back at base timing and go from there.:D
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1974 maverick lsx powered turbo car SOLD
1973 maverick Tijuana Taxi Tribute
1957 chevy LSX Turbo project (race car)
Owner of Joe Dirt Fabrication

Mustang H.O computer in T-bird

Reply #1 –
The EEC has nothing to do with base timing, set purely by the distributor...

Don't have a clue as to the actual timing curves output by the computers, but most HOs can take 13-14* advance(with premiun fuel).

Mustang H.O computer in T-bird

Reply #2 –
Quote from: TurboCoupe50
The EEC has nothing to do with base timing, set purely by the distributor...

Don't have a clue as to the actual timing curves output by the computers, but most HOs can take 13-14* advance(with premiun fuel).






they must be alot more agressive curve. Car feels better I just need to turn the timing down some before i lean on it hard:D

At least it idles better now:flame:
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1974 maverick lsx powered turbo car SOLD
1973 maverick Tijuana Taxi Tribute
1957 chevy LSX Turbo project (race car)
Owner of Joe Dirt Fabrication

Mustang H.O computer in T-bird

Reply #3 –
I'am a little confused. How did you put this HO computer in your SO? What else did you do?

James

Mustang H.O computer in T-bird

Reply #4 –
Quote from: srv1
I'am a little confused. How did you put this HO computer in your SO? What else did you do?

James




19lb injectors.
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1974 maverick lsx powered turbo car SOLD
1973 maverick Tijuana Taxi Tribute
1957 chevy LSX Turbo project (race car)
Owner of Joe Dirt Fabrication

Mustang H.O computer in T-bird

Reply #5 –
did you rewire anything, or just plug it in? I have a possible bad computer, and a SD HO puter laying around......
Quote from: jcassity
I honestly dont think you could exceed the cost of a new car buy installing new *stock* parts everywhere in your coug our tbird. Its just plain impossible. You could revamp the entire drivetrain/engine/suspenstion and still come out ahead.
Hooligans! 
1988 Crown Vic wagon. 120K California car. Wifes grocery getter. (junked)
1987 Ford Thunderbird LX. 5.0. s.o., sn-95 t-5 and an f-150 clutch. Driven daily and going strong.
1986 cougar.
lilsammywasapunkrocker@yahoo.com

Mustang H.O computer in T-bird

Reply #6 –
Quote from: Haystack
did you rewire anything, or just plug it in? I have a possible bad computer, and a SD HO puter laying around......




didnt touch a wire. swapped in the 19 lb injectors
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1974 maverick lsx powered turbo car SOLD
1973 maverick Tijuana Taxi Tribute
1957 chevy LSX Turbo project (race car)
Owner of Joe Dirt Fabrication

Mustang H.O computer in T-bird

Reply #7 –
I take it that you used the 86-88 Mustang HO computer?

Mustang H.O computer in T-bird

Reply #8 –
Quote from: Lx-tasy
I take it that you used the 86-88 Mustang HO computer?




 speed density yep:D
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1974 maverick lsx powered turbo car SOLD
1973 maverick Tijuana Taxi Tribute
1957 chevy LSX Turbo project (race car)
Owner of Joe Dirt Fabrication

Mustang H.O computer in T-bird

Reply #9 –
Actually in this case you should move the pins for the injectors at the EEC plug... You have a cam with 15426378 firing orede while the injectors are firing 13726548.... But when you move the pins it confuses the EEC and causes some of the cylinders to go rich and some to go lean...

Better leave it alone and just swap in the HO cam...

Mustang H.O computer in T-bird

Reply #10 –
I say rewire them just to see.
Quote from: jcassity
I honestly dont think you could exceed the cost of a new car buy installing new *stock* parts everywhere in your coug our tbird. Its just plain impossible. You could revamp the entire drivetrain/engine/suspenstion and still come out ahead.
Hooligans! 
1988 Crown Vic wagon. 120K California car. Wifes grocery getter. (junked)
1987 Ford Thunderbird LX. 5.0. s.o., sn-95 t-5 and an f-150 clutch. Driven daily and going strong.
1986 cougar.
lilsammywasapunkrocker@yahoo.com

Mustang H.O computer in T-bird

Reply #11 –
Quote from: TurboCoupe50
Actually in this case you should move the pins for the injectors at the EEC plug... You have a cam with 15426378 firing orede while the injectors are firing 13726548.... But when you move the pins it confuses the EEC and causes some of the cylinders to go rich and some to go lean...

Better leave it alone and just swap in the HO cam...




yeah i need to get the cam in it:D  and the heads ... and the intake..
man i need to do alot:flame:
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1974 maverick lsx powered turbo car SOLD
1973 maverick Tijuana Taxi Tribute
1957 chevy LSX Turbo project (race car)
Owner of Joe Dirt Fabrication
 

Mustang H.O computer in T-bird

Reply #12 –
Quote from: Haystack
I say rewire them just to see.



I am going to leave it alone it runs a-ok as is:D
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1974 maverick lsx powered turbo car SOLD
1973 maverick Tijuana Taxi Tribute
1957 chevy LSX Turbo project (race car)
Owner of Joe Dirt Fabrication

Mustang H.O computer in T-bird

Reply #13 –
Just a little off topic here...I had my base timing at 14* and I run on regular 87 octane everyday of the week with no problems.  Also, with the base timing set at 14* it will jump to around 36-38* with the SPOUT connector plugged in...seemed a little high to me.
Project 3G: Grandpa Grocery Getter-'85 Crown Vic LTD 2-door, 351W with heavily ported/polished GT40 heads, heavily ported/polished Typhoon Power Plus upper & lower intake, Comp Cams 265DEH retarded 1*, FAST EZ-EFI, HD T5, 8.8" 3.73 trac lock with extra clutches, 3G alt. swap, '99 CVPI front brakes, '09 CVPI rear disc brakes, '00 CVPI booster&m/c + wilwood adj prop valve.

Parted & Gone-'88 T-bird Sport, 351W swap, ported GT40 heads

Mustang H.O computer in T-bird

Reply #14 –
Quote from: Sick88Tbird
Just a little off topic here...I had my base timing at 14* and I run on regular 87 octane everyday of the week with no problems.  Also, with the base timing set at 14* it will jump to around 36-38* with the SPOUT connector plugged in...seemed a little high to me.


Thats normal for the timing...

Suprised it don't ping on 87 though,consider yourself lucky...