Trigger wheels

[Piledriver]

If I'm understanding Klattin correctly, the VR sensor has the advantage of always being "right".

The Hall sensors have the advantage of greatly simplifying the electronics and being more immune to electrical noise, but are less tolerant to runout etc.

Sounds logical.

[yvre]

Received my wheels from Mario this week-end.
Definitely a nice piece.

Thanks for the fast shipping and the excellent prices!

[raygreenwood]

I have been following this excellent thread...trying not to get too caught up in it....as I'm short of time lately. Yes...Piledriver has dragged me into the 20th century. I still love my D-jet....but as soon as I get my engine running it will give a test bed that is not my daily driver to play with MS...and most especially ignition variations. Great information here! Ray

[Redline Weber]

MOST IMPORTANT :

The Hall (internal bias magnet) OR VR sensor will have a "Pole Piece".
The center pole is a steel rod with DIFFERENT diameters to sense different pitch Target Wheels.
These two types of sensors could also be fitted with a "bias" magnet.

This Pole Piece diameter SHOULD be "less than" the distance between each tooth.

How do I measure a "blind" sensor ? (one covered with plastic)

Answer : I use a paper clip to "guess" at the covered Pole Piece diameter.
Once I qualify an unknown sensor, I will grind away the plastic case to the depth of the Pole Piece. (destructive testing)
Future performance of new sensors, unknown types, can now be in my tech data.

Lance

[MarioVelotta]

All the type one triggers are gone now, I still have (6) type 4 triggers for sale.

I have a bit more interest in the Type 1's and will have another batch made up if the interest continues so pipe up if you need one.

Thanks all!

[raggdout63]

Hey Mario I've already got a trigger wheel, but I like your sensor and mount. Do you sell that separately or only in a kit?

[-Alex77-]

I may have something like this, made out of 6mm steel and then zinc coated electrically perhaps. Plans are not final yet, so i may have lasercutted few different versions.

My hall sensor is honeywell 1GT101DC, very popular in finland with megasquirt.

[MarioVelotta]

Hey Mario I've already got a trigger wheel, but I like your sensor and mount. Do you sell that separately or only in a kit?

Yeah, I can do that. The Bracket is $10 and a sensor is $50, shipping is $5. I had a couple extra brackets cut this time just incase

I may have something like this, made out of 6mm steel and then zinc coated electrically perhaps. Plans are not final yet, so i may have lasercutted few different versions.

My hall sensor is honeywell 1GT101DC, very popular in finland with megasquirt.

That is very cool! The only problem is everything is out in the open. The one I am selling is completely protected. I ran the Boost Engineering kit on my car for a few years. With a similar design to yours. IMO it is to bulky and in the way. Also people running the Mexican plenum cannot use it as it mounts to the fuel pump studs. Just a couple things to think about, you should make it in a 36-1 configuration also.

[grelland]

Hey Mario I've already got a trigger wheel, but I like your sensor and mount. Do you sell that separately or only in a kit?

Yeah, I can do that. The Bracket is $10 and a sensor is $50, shipping is $5. I had a couple extra brackets cut this time just incase

Any chanse you have another set of sensor and bracket?

[MarioVelotta]

I do, are you in the US? If not add $10 to shipping price. I can have it out tomorrow.

[-Alex77-]

Do you think that 12-1 trigger wheel doesnt work well with megasquirt / edis? Any known problems? I have also drawing of the 36-1 triggerwheel.

http://www.compel.ru/images/catalog/357/1GT101DC.pdf

Datasheet of honeywell sensor says that min tooth thickness is 6,35mm and width 2,54mm. Would it still work if make the triggerwheel out of 6mm plate with 8mm tooth width?

[SUbuggy]

Datasheet of honeywell sensor says that min tooth thickness is 6,35mm and width 2,54mm. Would it still work if make the triggerwheel out of 6mm plate with 8mm tooth width?

no problem. I have made many triggers from this EXCELLENT sensor, without any failures.

[Chip Birks]

Do you think that 12-1 trigger wheel doesnt work well with megasquirt / edis? Any known problems? I have also drawing of the 36-1 triggerwheel.

EDIS needs 36-1 period...unless you are running it without the module...

[Piledriver]

Do you think that 12-1 trigger wheel doesnt work well with megasquirt / edis? Any known problems? I have also drawing of the 36-1 triggerwheel.

EDIS needs 36-1 period...unless you are running it without the module...

To clarify--- MS can use a LOT of different trigger wheel setups if driving direct.
(I'm playing with the 6 holes in the flywheel + 1 for sync in a modified dist running sequential ATM, still wiring up after breaking in the cam on carbs)
EDIS requires 36-1 wheels, no getting around it.

[grelland]

I do, are you in the US? If not add $10 to shipping price. I can have it out tomorrow.

Norway, yes. I send you a PM

Roy