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EF base timing adjuster 

 

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 Post subject: EF base timing adjuster
Posted: Sat Dec 04, 2004 10:22 pm 
Stock as a Rock
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Ride: EL Falcon

Location: Canberra
ACT, Australia

Been having a headscratch about whether you could 'spoof' the crank angle sensor on an EF, by a gizmo between the sensor and the loom where you use electronics to 'count' the pulses since the missing tooth, and delay them by as many teeth as you want. Now at first glance this only retards the timing, but a 350 degree lag is effectively a 10 degree lead, you are just one rev behind what the engine is doing. At idle, 600rpm (say) = 10 revs per second. Your RPM would have to change significantly in 0.1 seconds to affect the timing.

I'll have to to the maths properly before I start looking at a circuit to do that.

If the maths says it's a goer, and given that my EL doesn't have need for such gadgetry, I may be hunting guinea pigs over Christmas.....

Any thoughts, comments, suggestions?

Cheers,

Dang.
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Posted: Sun Dec 05, 2004 1:03 am 
Getting Side Ways
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SA, Australia

Why bother? The EF system with its knock sensor feedback is fairly good. At most you will get a few extra degrees advance in the low to mid range but the power gains would be minimal IMO.
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Posted: Sun Dec 05, 2004 4:15 pm 
Getting Side Ways
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It would be worth it if you're running LPG - I now have more power on LPG than I had before the conversion on petrol, all I did was dialled in about 5-7 degrees more timing in.

Although I have an EL with a dizzy....
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Posted: Mon Dec 06, 2004 11:09 pm 
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Make yourself an adjustable mount for the sensor. Then you can just move it like a distributor.

Pete.
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Posted: Tue Dec 07, 2004 2:12 am 
Fordmods Junkie
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hey pete how i do this? anychance of giving me ahand for a few beers?

 

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Posted: Tue Dec 07, 2004 12:36 pm 
EFI Guru
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WA, Australia

Disco Frank wrote:
hey pete how i do this? anychance of giving me ahand for a few beers?


No I'd rather keep my hand thanks :wink:
Seriously though....cruise around and we'll have a look see.

Pete.
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Posted: Tue Dec 07, 2004 1:06 pm 
Fordmods Junkie
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hahahahahah LOL

yer sure i am in
u have pm!

 

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