**Trigger Wheels/pulley's "Crank Trigger"**

[Mad Dart]

Does anyone know where to get a 36-1 Trigger wheel that has the Pulley attached to it? Trying to keep the Trigger Pickup on the Block side of the pulley so if I loose a belt it doesn't take out the Pickup wiring etc.

 

[fenderman33]

I don't know if you can get one ready made, but I ordered one like this:
http://compare.ebay.com/like/230593...ffb89b3&itemid=230593989063&ff4=263602_325002
and had the center opened up until it would fit way onto the back on the pulley and then welded. They spun it on the lathe after to make sure it was true.
I have one year on it so far without issue.
-Jon

 

[fenderman33]

Picture

 

[chubsgts]

ditto had to make mine also took serp pulley and installed behind it

 

[Mad Dart]

Thanks for the pictures and responses. Mine is on a TT Build that is pretty tight so I don't know if a serp pulley and belt will work for me. I may need to use the standard V Belt Pulley for clearance issues.

 

[Mad Dart]

What pick up sensor are you guys using?

 

[chubsgts]

mine was a saturn motor put into dune buggy so i was runing all org gm stuff

 

[chubsgts]

we used one fast or msd on the 588 vet worked great watch out for RMI radio magnetic interference gives you some real wicked misses and other issues use a guarded cover if you can

 

[Mad Dart]

we used one fast or msd on the 588 vet worked great watch out for RMI radio magnetic interference gives you some real wicked misses and other issues use a guarded cover if you can

This is all new to me and I appreciate what you are telling me to watch out for.

Do you happen to have a picture of a guarded cover? I am sure I can fabricate something myself right?

 

[fcm42000]

Try using shielded wire to protect from rmi, do you know what that is? Where a seperate ground wire is wrapped around the signal wire, all incorporated in on one wire, does that make sense?

 

[Mad Dart]

Try using shielded wire to protect from rmi, do you know what that is? Where a seperate ground wire is wrapped around the signal wire, all incorporated in on one wire, does that make sense?

Yes I know what that is! I am a wiring genius.......haaaaa

It looks as if most pickups are using shielded wire.

 

[fcm42000]

Sorry, didn't want to assume what you knew, just make sure the shielding is grounded out well to the frame.

 

[Mad Dart]

Sorry, didn't want to assume what you knew, just make sure the shielding is grounded out well to the frame.

No problem its all good!

 

[fenderman33]

The one I ended up using was a crank sensor off of some Nissan motor I had in the shop. The one in the pictures didn't work and that one was handy.
I wired mine with the shielded wire too. Once I got the gap right I haven't had any problems with sync loss in the Megasquirt.
-Jon