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> Crank Position Sensor, for stock cooling engines
McMark
post Jul 13 2009, 10:11 AM
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Since quite a few people were interested in crank fire and aftermarket FI system I finally finished up my crank position sensor setup. So if you want to run distributor-less ignition or modern FI, this setup is the ONLY setup built specifically to bolt onto a Type 4.

It's a complete bolt on upgrade, which means no drilling or modifying any parts to make this work. Only the cooling fan needs to be removed to complete the installation.

This setup is great for modern FI system, which need a 'trigger signal'. Fuel only setups usually get their signal from the coil firing, but that signal is DIRTY and unreliable. This crank fire setup is smooth and clean. You can't beat it.

There is no other setup built specifically for our motors. Quick easy installation with no headaches.

Complete package price is $175 and includes the trigger wheel, the sensor w/ connector (pigtail or uncrimped), and the mounting bracket. You won't need to go searching for anything else.


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914werke
post Jul 13 2009, 01:13 PM
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I want one of these!
What about a harness/connector? Is Jeff making those?
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JazonJJordan
post Jul 15 2009, 10:04 AM
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(IMG:style_emoticons/default/smilie_pokal.gif) Excellent work- McMark! I will get one of these next month too! (IMG:style_emoticons/default/popcorn[1].gif)
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euro911
post Jul 16 2009, 12:05 AM
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(IMG:style_emoticons/default/beerchug.gif) Very nice, but a question comes to mind:

How do you deal with the added thickness? ... will one need to shave [whatever the thickness of the 'trigger wheel' is] off the back of the fan mount to keep the belt aligned with the alternator pulley?
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hcdmueller
post Jul 16 2009, 08:01 AM
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The trigger wheel is machined to be the correct thickness. You just replace the big washer with the trigger wheel. I got mine in the mail and it is beautiful. I can't wait to get it hooked up and running.
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McMark
post Jul 17 2009, 10:56 AM
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QUOTE(rdauenhauer @ Jul 13 2009, 11:13 AM) *

I want one of these!
What about a harness/connector? Is Jeff make those?

I am soldering on wires and filling the connector with epoxy. But I'm still searching for the appropriate connector.
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McMark
post Jul 17 2009, 10:58 AM
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QUOTE(euro911 @ Jul 15 2009, 10:05 PM) *
How do you deal with the added thickness? ... will one need to shave [whatever the thickness of the 'trigger wheel' is] off the back of the fan mount to keep the belt aligned with the alternator pulley?

Yup, there is no added thickness. This is a 100% bolt on application. It can be done in about 5 minutes (with the motor out, but completely assembled) and requires absolutely no modification of anything.
(IMG:style_emoticons/default/cool.gif)
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euro911
post Jul 21 2009, 11:50 PM
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So the sensor replaces the trigger points in the distributor?
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McMark
post Jul 24 2009, 02:15 PM
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This sensor is a key component of installing aftermarket fuel injection and/or some aftermarket ignition setups. What I'm offering here takes the guess work out of building these parts. But for a stock engine, these parts are useless. This setup essentially does nothing by itself, but as part of a bigger picture, they are very valuable.

If you've heard the term "crank fire" this product is the central component of that setup.
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JazonJJordan
post Jul 24 2009, 09:34 PM
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QUOTE(McMark @ Jul 24 2009, 04:15 PM) *

This sensor is a key component of installing aftermarket fuel injection and/or some aftermarket ignition setups. What I'm offering here takes the guess work out of building these parts. But for a stock engine, these parts are useless. This setup essentially does nothing by itself, but as part of a bigger picture, they are very valuable.

If you've heard the term "crank fire" this product is the central component of that setup.

McMark;

Any likelyhood you will progress this further into a full package/solution?

Just curious, great product. Thanks-
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McMark
post Jul 24 2009, 09:39 PM
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I'm trying to motivate my genius EE into developing the ignition circuitry. The fuel injection setup I've been working on is complete as a fuel only solution. I'm working now on a coil on plug solution that will allow for fuel & ignition in one package.
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euro911
post Jul 25 2009, 04:16 AM
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QUOTE(McMark @ Jul 24 2009, 01:15 PM) *

This sensor is a key component of installing aftermarket fuel injection and/or some aftermarket ignition setups. What I'm offering here takes the guess work out of building these parts. But for a stock engine, these parts are useless. This setup essentially does nothing by itself, but as part of a bigger picture, they are very valuable.

If you've heard the term "crank fire" this product is the central component of that setup.
I was curious as to 'how' and 'where' ignition timing adjustments were to be made (IMG:style_emoticons/default/idea.gif) ... I see what you're doing now. Thanks for splaining.
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914werke
post Sep 19 2009, 01:30 AM
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Does the placement of the Pickup preclude the use of "full flow" plumbing?
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McMark
post Sep 19 2009, 01:36 AM
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I think it might interfere with the return line. I'll check tomorrow and if it does I'll have to redesign the bracket, which isn't too big of a deal.
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914werke
post Sep 26 2009, 12:02 AM
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Perhaps if it was moved to the case pinch bolt just below the oil fill tower?
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LotusJoe
post Dec 8 2009, 04:51 PM
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Is your trigger system still avail.?

Thanks
Joe
Southern California
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McMark
post Dec 8 2009, 05:19 PM
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Yes it is.
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ConeDodger
post Dec 16 2009, 11:17 AM
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Since this WOULD be the perfect solution for me, if it works with SDS EFI I am wondering what SDS is using? Surely, they have not reinvented the wheel. Are they using some kind of GM electronics that can be adapted to your wheel and plugged in to their harness? Whoops! Answered my own question. GM LSX 24 Tooth. Seems to me you are redesigning to many more teeth than that. 48:1?

Invent more stuff! I want a billet aluminum YoYo with Porsche emblems on the side or 914!
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McMark
post Dec 16 2009, 09:15 PM
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Looks like SDS is 'working on' toothed wheel setups. I've emailed them about what the latest is.
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arvcube
post Dec 16 2009, 11:09 PM
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dont their systems currently work on magnetic triggers? requiring proper positioning of magnets on crank pulley or what not?
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