Was looking at this and wondering why only a 4 tooth wheel? I understand it is for a 90 deg V-8, but the OEM wheels I see posted on this board have quite a few more teeth.
http://www.fuelairspark.com/fas/crank-t ... ancerhtml/
FAST Crank Trigger
Moderators: jsmcortina, muythaibxr
FAST Crank Trigger
1995 Ford Lightning. Dart based 427 Windsor, Novi 2000, full sequential, E-85, etc. MS3X/v3.57
http://www.buildpics.org/
http://www.buildpics.org/
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- Experienced MS/Extra'er
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Re: FAST Crank Trigger
That unit is highly overpriced, much like everything that FAST sells. And the description is pure BS. Show me any OEM that is using a 4 tooth trigger wheel. With a 4 tooth wheel your park resolution is not that great.
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- Super MS/Extra'er
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Re: FAST Crank Trigger
Because FAST was not able to code an every tooth wheel decoder for their XFI. Not sure if this is a limitation on their processor or its firmware.
Matt Cramer -1966 Dodge Dart slant six running on MS3X
Re: FAST Crank Trigger
is it just me or is that a ford modular cam position sensor
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- Super MS/Extra'er
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Re: FAST Crank Trigger
Because on a V8 crank attached trigger wheel for ignition duties, 4 poles are all that is needed to coincide with the TDC events of each cylinder. If you look in the dizzy of many V8s, you will see 8 poles on the reluctor because the dizzy spins at half the speed of the crank.
These are used for simply ignition trigger duties, usually to ignition boxes, where there is still a dizzy involved distributing the spark to each cylinder. The crank trigger is simply to provide the TDC trigger event for the ignition box (or ECM) to know when a cylinder is at TDC and nothing more.
MSD also sells a very similar trigger wheel for the same purposes.
These are used for simply ignition trigger duties, usually to ignition boxes, where there is still a dizzy involved distributing the spark to each cylinder. The crank trigger is simply to provide the TDC trigger event for the ignition box (or ECM) to know when a cylinder is at TDC and nothing more.
MSD also sells a very similar trigger wheel for the same purposes.
Tha Toy: 1973 Datsun 240Z Turbocharged, and loads of fun, now MS'd
Tha Otha Toy: 1923 T-bucket Hot Rod, Currently Sniper'd
Tha Daily: 2005 Chevy Blazer
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Tha Otha Toy: 1923 T-bucket Hot Rod, Currently Sniper'd
Tha Daily: 2005 Chevy Blazer
Tha Summer Daily: 1987 Buick Skyhawk hatchback
Tha Long Term Project: 1985 GMC S-10 Jimmy, hasn't been fun for a while