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Best trigger wheel setups

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Old 07-18-2017 | 01:15 AM
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Default Best trigger wheel setups

Hi all

So I'm doing a rebuild on my 85 NA 944 and have decided to go the full aftermarket ECU route and install a Haltech 1500 elite. Mostly to teach myself about tuning and electronics, but also to modernise the driving experience and performance/economy. I really like these cars so would like to make it more daily friendly.

The Haltech can work with a number of trigger setups, but not the 944 style I would most like to modify the flywheel ie. Cut notches 36-1 or 60-2 etc. I found a machine shop that can do 36-1 for about $400
I'm thinking a Hall effect sensor, but I can't find information on how the teeth need to be shaped, how deep etc? Could anybody with experience chime in?

Old 07-18-2017 | 03:15 AM
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Hi, you can check out his thread

https://rennlist.com/forums/944-turb...ger-setup.html
Old 07-18-2017 | 04:56 AM
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Hey I used to live in Toowomba! Down in Brisbane now though...

I'm interested to follow your experiences with getting the Haltech to work on a 944. My brother has a Sport 2000 in his R33 GTR and they seem to be a great unit.

Personally, I've got my eyes set on going to VEMS plug and play when I eventually have some cash to throw at the 944 again.
Old 07-18-2017 | 07:56 AM
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Originally Posted by willrobinson
...I would most like to modify the flywheel ie. Cut notches 36-1 or 60-2 etc..
...or you could buy an S2 flywheel and bellhousing and save yourself a bunch of work.
Old 07-18-2017 | 08:13 AM
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^ What he said. The S and S2 flywheels are already a 60-2 setup. That would be the easiest way to go about it, and probably cheaper too.
Old 07-18-2017 | 09:06 AM
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http://www.goingsuperfast.com/Trigger-wheels.html

$40 and it bolts on. I run one with a basic Hall effect sensor on my 83. Only real work is making a mount for the sensor.
Old 07-18-2017 | 09:12 AM
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Thanks for that info Michael..That will help a lot ..moving forward..maybe next year!
Old 07-18-2017 | 01:36 PM
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Old 07-18-2017 | 01:37 PM
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That is from my Electromotive setup... The pulley and the Trigger bracket is made by Clewitt Eng. Nice e-z setup Bolt on and go..
Old 07-18-2017 | 01:39 PM
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..VEMS is probably less expensive than Haltec and uses the stock "trigger" setup...
Old 07-18-2017 | 02:09 PM
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Yeah...Haltec seems great but I can't imagine the need for a high end EMS on a 944NA. My Megasquirt setup was $1200, including an all new harness, distributorless ignition, custom relay setup and wiring, new modern injectors, and all the sensors. It could be done for well under $800 without a lot of those extras.
Old 07-18-2017 | 05:03 PM
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Originally Posted by odonnell
http://www.goingsuperfast.com/Trigger-wheels.html

$40 and it bolts on. I run one with a basic Hall effect sensor on my 83. Only real work is making a mount for the sensor.
Originally Posted by GPA951s
That is from my Electromotive setup... The pulley and the Trigger bracket is made by Clewitt Eng. Nice e-z setup Bolt on and go..
I'm not a fan of anything open to the elements and road debris and hanging at the front. I know a lot of people use such a trigger and sensor mount but I consider the stock flywheel and bell housing position a much more elegant and reliable solution. Apart from the S2 solution for an na, there is also a very good aftermarket 60-2 flywheel solution for the 951's.
Old 07-19-2017 | 12:06 AM
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Thanks all for the informative posts, I will investigate the S2 setup as that seems most straightforward. I do prefer to keep the setup on the bell housing for these very reasons
I'm not a fan of anything open to the elements and road debris and hanging at the front. I know a lot of people use such a trigger and sensor mount but I consider the stock flywheel and bell housing position a much more elegant and reliable solution. Apart from the S2 solution for an na, there is also a very good aftermarket 60-2 flywheel solution for the 951's.
I was initially most interested in going the megasquirt way but didnt have the guts to jump in deep, I couldnt decipher the options or plan the combinations so I went with Haltech but hopefully it turns out ok and I will be more confident the second time around. It seems like overkill but I did it to get through a progress stall.

944 Crazy im actually in Brisbane now too, in Oxley, how about yourself? would be great to meet another local owner.
Old 07-19-2017 | 01:28 AM
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Originally Posted by willrobinson
944 Crazy im actually in Brisbane now too, in Oxley, how about yourself? would be great to meet another local owner.
We are practically neighbours then! I'm in Salisbury. Feel free to send me a message if you feel like meeting up some time.



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