Crank trigger options

[brock1949]

I know RPM has a great solution and as i said in the other thread i started i'm about to modify my MSD billet to crank trigger but i would rather have a crank trigger actually on the crank and use the MSD for cam pos.

Why don't the V8 kits work on these motors? i know its something i'm missing but just wondered.

Anyone had any luck building there own.. whatever i don't have my local machine shop will let me barrow to complete but i'm not 100% sure if its worth the hassle over just buying RPM's or just using my MSD dist.

 

[1BADV6]

Re: Crank trigger options

PM sent

 

[Windedv6]

Re: Crank trigger options

I used an MSD pickup and made a bracket out of billet to locate mine in a different spot (than the typical MSD sbc location) because I run a dry sump oil pump on one side and the alternator on the other. Both are down low. For the pulley to hold the magnetic pickups I went the ATI route where they put the magnets into the damper shell.

http://www.atiracing.com/products/dampers/damperparts/trigger-shells.htm

John

 

[leadfoot]

Re: Crank trigger options

I used a factory 3X reluctor ring on my 1992 4.3, -but it was required for the 411 PCM.

What kind of signal do you require for the crank sensor?

 

[brock1949]

Re: Crank trigger options

Well it looks like i can use the 6 paddles on the MSD dist for crank trigger without an issue. After talking to John at BS3 he's telling me crank trigger off MSD dist is all you really need until around 1000HP which my goals are 500-600-700?RWHP pump gas - E85/Race gas but would be happy with 100HP and driving it for a couple weeks anyways lol not really set on anything just want it stable and back on the road for now.

 

[Windedv6]

Re: Crank trigger options

I am running a crank trigger on my 2WD TT Ty just because I run sequencial timing setup. If you are not going the sequencial route just use a stock dis. I never had any timing issues with stock dis on my AWD ty which is running a fairly serious build. Keep it simple is alway better.

John

 

[brock1949]

Re: Crank trigger options

windedv6 Sorry i just caught your message,

After talking to John at BS3 he's telling me with just crank sensor off the dizzy he's running seq fuel injection said the only thing i'm loosing is adjustable timing per cyclinder with out a cam sensor. He said off just the crank sensor on the dizzy he can control fuel per cyclinder to adjust for seperate AFR's or EGT's if i have them on every cyclinder. He claimed the gains from having both cam and crank sensor and adjusting fuel and timing per cyclinder don't become an issue until 1000+ HP then you need both but then said he's got a bunch of 1000-1500hp cars running just 1.

So for now the only thing i know for sure is it should be enough to get the thing off the lift, out of the garage and back on the road lol. Then i'll start figuring out what i'm loosing by not having both sensors and i'm sure eventually just adding it because i don't have one.

 

[SyTyAddict]

Re: Crank trigger options

Mine has a reluctor ring welded to the outside middle of the stock pulley. I need to pull it to see what the ring came off of.

 

[brock1949]

Re: Crank trigger options

ya i'd be interested to see the setup if you could get a pic, Who made the setup ?

 

[Windedv6]

Re: Crank trigger options

windedv6 Sorry i just caught your message,

After talking to John at BS3 he's telling me with just crank sensor off the dizzy he's running seq fuel injection said the only thing i'm loosing is adjustable timing per cyclinder with out a cam sensor. He said off just the crank sensor on the dizzy he can control fuel per cyclinder to adjust for seperate AFR's or EGT's if i have them on every cyclinder. He claimed the gains from having both cam and crank sensor and adjusting fuel and timing per cyclinder don't become an issue until 1000+ HP then you need both but then said he's got a bunch of 1000-1500hp cars running just 1.

So for now the only thing i know for sure is it should be enough to get the thing off the lift, out of the garage and back on the road lol. Then i'll start figuring out what i'm loosing by not having both sensors and i'm sure eventually just adding it because i don't have one.

You will be fine with only fuel adjustment. Check your plugs and if some seem a little lean you can add a little fuel with out needing to play with individual timing. Stick with John. He knows how his stuff works...for sure.

John

 

[SyTyAddict]

Re: Crank trigger options

Mine was like that when I got it, so I'm not sure when it was done or who did it. I should get a pic of it Saturday, I'm kind of in a time crunch for the next couple of days.