Trigger points for CAS.

Converting To Delco ECU From Carby Or Other Injection Systems
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festy
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cars: Alfa Romeos
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Re: Trigger points for CAS.

Post by festy »

I've had no trouble with mine (SMP brand I think) but can't say it's had a lot of use since being installed.
These modules were used on a bunch of mid 90s cars in the US, so if a particular brand was unreliable I'd expect google to tell you all about it if you searched for that manufacturer's part number + a keyword or two like failed, warranty, crap etc.
GH1176
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Joined: Thu Apr 17, 2014 9:25 pm
cars: 1974 Holden Torana LH SL

Re: Trigger points for CAS.

Post by GH1176 »

My car won't get much use, but as it's been off the road for a ground up rebuild for the last 12 years it might be by the end off the year before I hear the engine run again.
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Jayme
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Re: Trigger points for CAS.

Post by Jayme »

festy wrote:See http://pcmhacking.net/forums/viewtopic. ... t=20#p9230
Sync pulse is 70* after, so 10* after the next 60* reference pulse

thats for a 4 cyilnder... I beleive the OP wants to use this on a 6cyl 202? the 6 cyilnder lines up differently.
In a 6-cylinder application, the evenly spaced notches coincide with TDC. The sync pulse notch coincide with 10° after TDC for the #1 cylinder.
GH1176
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Re: Trigger points for CAS.

Post by GH1176 »

All good now, when I've finished the wheel I'll put up a photo.
GH1176
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cars: 1974 Holden Torana LH SL

Re: Trigger points for CAS.

Post by GH1176 »

This is the wheel I'm getting.
Image
My crank will have a 1/2" thread tapped into too it so I'll be able to swing it around too get it lined up perfectly before I drill the holes for the gilmer drive and lock it in place.
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Holden202T
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Re: Trigger points for CAS.

Post by Holden202T »

this is where I put the holes in mine, may or may not help you at all :)
P1100700.JPG
P1100700.JPG (413.8 KiB) Viewed 3869 times
I think I ended up getting 6.5 inch wheel from memory ?
GH1176
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cars: 1974 Holden Torana LH SL

Re: Trigger points for CAS.

Post by GH1176 »

I'm sure it's the same as yours so I will have to drill the two other holes but having the crank bolt means I can lock it down before drilling.
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Holden202T
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Re: Trigger points for CAS.

Post by Holden202T »

but if you do 6 + 1 will be different location anyways.
GH1176
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Re: Trigger points for CAS.

Post by GH1176 »

Did you end up marking the wheel so you know which way it go's back on? I mean if you have too take it off so you don't have wind the motor over #1 tdc every time you bolt it back on
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Holden202T
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Re: Trigger points for CAS.

Post by Holden202T »

with the motor at TDC that missing tooth should be just after the ABS sensor, so theres only one way that will align correctly.

also i have a serpentine pulley on the front of the crank (this trigger wheel is in between it and the balancer) and its got the marks on it, so i just keep it and the chopper wheel together when i remove them so its pretty straight forward.
new trigger mount 2.jpg
new trigger mount 2.jpg (257.91 KiB) Viewed 3832 times
this picture might be a bit misleading .... the TDC mark is not actually TDC, TDC is the 60 degree mark, i labelled it this way so i knew where TDC was to align the sensor.
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