haltech dual hall effect sensors - Drifting forum

antiguaboy · 01-10-2008, 21:39

the haltech dual hall effect sensors, has anyone had any experience with them? where would you mount it if you were trying to got with a dizzyless setup? on the crankshaft or cam shaft? i saw on efihardware.com they have a pick up for a hall effect sensor but not sure where to mount it and how to do it? im trying to use a haltech E8 on a 3sgte to run direct fire ignition and sequential injection.

PhatBob · 02-10-2008, 08:42

Always use cam as a last resort or for synchronisation pluses alone.
A solid mounted crank trigger is best as it provides rock-solid, personally I stick with 36-1 (Ford) trigger patterns because I've never had problems with one, and to run wasted spark and sequential injection. You could add a cam sync trigger to get individual ignition but I've never seen any evidence that it makes a blind bit of difference with regards to power.
Alternatively we suggest the simple crank trigger which is two trigger teeth one at 60 deg BTDC and the other at 60 deg BBDC with a single sync tooth on the cam. This is an awesome trigger setup for its simplicity and accuracy and can be seen on this Autech controlled Honda engine here:

Question is, why are you having to get answers from a VEMS support agent and not a Haltech one?

Rossi · 02-10-2008, 10:34

Quote:

Originally Posted by PhatBob

Always use cam as a last resort or for synchronisation pluses alone.
A solid mounted crank trigger is best as it provides rock-solid, personally I stick with 36-1 (Ford) trigger patterns because I've never had problems with one, and to run wasted spark and sequential injection. You could add a cam sync trigger to get individual ignition but I've never seen any evidence that it makes a blind bit of difference with regards to power.
Alternatively we suggest the simple crank trigger which is two trigger teeth one at 60 deg BTDC and the other at 60 deg BBDC with a single sync tooth on the cam. This is an awesome trigger setup for its simplicity and accuracy and can be seen on this Autech controlled Honda engine here:

Question is, why are you having to get answers from a VEMS support agent and not a Haltech one?

Now that is a cold air feed

antiguaboy · 04-10-2008, 17:36

what is the significance of the teeth being at 60 degrees before tdc and bdc?

PhatBob · 04-10-2008, 18:38

Accuracy.
All ECUs I've ever seen calculate the crank speed, then from that they're able to calculate angle. As you'll be using these triggers to give accurate timing you want to have the speed calculation occur as close as you can to the ignition event. You dont want it too close and you tend not to run more than 50deg advance so 60 BDC is a good rule of thumb.

01-10-2008, 21:39	#1 (permalink)
antiguaboy gripper Join Date: Sep 2008 Location: caribbean Posts: 16	haltech dual hall effect sensors the haltech dual hall effect sensors, has anyone had any experience with them? where would you mount it if you were trying to got with a dizzyless setup? on the crankshaft or cam shaft? i saw on efihardware.com they have a pick up for a hall effect sensor but not sure where to mount it and how to do it? im trying to use a haltech E8 on a 3sgte to run direct fire ignition and sequential injection.

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02-10-2008, 08:42	#2 (permalink)
PhatBob Ken Block??? Join Date: Aug 2004 Location: Newmarket Posts: 1,775	Always use cam as a last resort or for synchronisation pluses alone. A solid mounted crank trigger is best as it provides rock-solid, personally I stick with 36-1 (Ford) trigger patterns because I've never had problems with one, and to run wasted spark and sequential injection. You could add a cam sync trigger to get individual ignition but I've never seen any evidence that it makes a blind bit of difference with regards to power. Alternatively we suggest the simple crank trigger which is two trigger teeth one at 60 deg BTDC and the other at 60 deg BBDC with a single sync tooth on the cam. This is an awesome trigger setup for its simplicity and accuracy and can be seen on this Autech controlled Honda engine here: Question is, why are you having to get answers from a VEMS support agent and not a Haltech one?

04-10-2008, 17:36	#4 (permalink)
antiguaboy gripper Join Date: Sep 2008 Location: caribbean Posts: 16	what is the significance of the teeth being at 60 degrees before tdc and bdc?

04-10-2008, 18:38	#5 (permalink)
PhatBob Ken Block??? Join Date: Aug 2004 Location: Newmarket Posts: 1,775	Accuracy. All ECUs I've ever seen calculate the crank speed, then from that they're able to calculate angle. As you'll be using these triggers to give accurate timing you want to have the speed calculation occur as close as you can to the ignition event. You dont want it too close and you tend not to run more than 50deg advance so 60 BDC is a good rule of thumb.