Adding A Trigger Wheel To A Ally Flywheel

[wardy18 33 1 Cars]

As the title outlines my question is due to the pulley mounted trigger wheel and cps being rather vulnerable and the fact that I already have a Helix ultra light flywheel which has been balanced along with my 96mm crank but not having a trigger wheel fitted as std, does anyone know if it is possible to have a trigger wheel fitted to my ally flywheel? It has the flat edge where the wheel would be.

 

Or is am external wheel mounted to the crank pulley my best way forward?

 

Just wondering if anyone has done this before??

 

Cheers

Simon

[EdCherry 34 1 Cars]

Id rather fit it to the crank pulley if the flywheel has already been balanced.

[welshpug 1,626]

probably the simplest approach would be the crank pulley mounted trigger wheel, I can;t imagine being vulnerable was a concern for a hillclimb car, rally car I can see.

 

as for getting something fitted to the flywheel, what do Helix say?

[[L'e$kro] 2]

Have a look in service box on xu10 engines fitted with an autobox, they are mounted with some kind of dummy flywheel for the starter crown and crank speed sensor and are ery lightweight

I've seen a guy using this with a Nascar triple disc race clutch on a 405 t16 in France

Nicolas

[Miles 331 1 Cars]

Before you balance anything you will need to sort this as even the wheel will make a differance due to the missing tooth/teeth

[wardy18 33 1 Cars]

Crank pulley sensor it is then, i will speak to Mass to see how far along they are with the crank and bring a Trigger Wheel into the equation, if it come to it the trigger wheel can be added on and balanced, i'd assume, with a few drill holes on opposite sides to the missing tooth.

 

Ill have a word with Mass as i need to speak to them about building this engine and so not sure if they would want to start adding custom parts and brackets ie CPS bracket.

 

Where is best to buy a Trigger Wheel and CPS with Bracket?!

 

and...for a DTA ECU is 36-1 or 60-2 the way to go?!

 

Thanks for the replies

 

Simon

[dino20vt 3]

Try trigger-wheels.com

[Sandy 189]

36-1 or 60-2, doesn't matter, lead angle 90-120 degrees.

[petert 554]

If it's an aluminium flywheel, why not embed some magnets and use something like the Haltech S3 hall effect sensor?

 

http://www2.haltech.com.au/index.php?optio...1&Itemid=36

 

You install one magnet facing north and another 180 degrees facing south. This gives a pulse every TDC and when the north passes, an additional trigger signal for sequential fuel options.

[Miles 331 1 Cars]

I might know of a complete set up for sale, Drop 'Dave Potter' a PM as it's his.

[wardy18 33 1 Cars]

I think the simplest route for me will be the pulley mounted trigger wheel and as people have said this isnt suited to rallies but for my tarmac only use it will hold up fine.

 

Thanks for the info