Kennysgreen280zt Posted January 28, 2008 Share Posted January 28, 2008 Ive got an 81 turbo motor for my car. Just curious if I can use the 81 CAS to run a coil for each plug? Or am I stuck using the dizzy? Im still learning all this, and I searched and didnt see anything specific to this quesiton. Thanks guys! Kenny Quote Link to comment Share on other sites More sharing options...
Matt Cramer Posted January 28, 2008 Share Posted January 28, 2008 That particular one doesn't provide cylinder identification. You'd need to use a different sensor like a 36-1 crank wheel if you want to ditch the distributor. Quote Link to comment Share on other sites More sharing options...
Kennysgreen280zt Posted January 28, 2008 Author Share Posted January 28, 2008 perfect, thanks for the answer! Quote Link to comment Share on other sites More sharing options...
mobythevan Posted January 28, 2008 Share Posted January 28, 2008 Wouldn't an 83 CAS dizzy work if you covered one hole so you would have a 6-1 wheel? I'm not familiar with the 81 cas internals to know if you could do the same thing. Just cover the slot that would line up with #1 TDC, or the one prior to #1. It would be easy to put a small piece of copper tape over the slot. Should hold up great. Quote Link to comment Share on other sites More sharing options...
mario_82_ZXT Posted January 28, 2008 Share Posted January 28, 2008 Wouldn't an 83 CAS dizzy work if you covered one hole so you would have a 6-1 wheel? I'm not familiar with the 81 cas internals to know if you could do the same thing. Just cover the slot that would line up with #1 TDC, or the one prior to #1. It would be easy to put a small piece of copper tape over the slot. Should hold up great. someone, maybe it was rontyler, posted on how to do that by drilling one on the z31 trigger wheel. Mario Quote Link to comment Share on other sites More sharing options...
Matt Cramer Posted January 29, 2008 Share Posted January 29, 2008 Wouldn't an 83 CAS dizzy work if you covered one hole so you would have a 6-1 wheel? I'm not familiar with the 81 cas internals to know if you could do the same thing. Just cover the slot that would line up with #1 TDC, or the one prior to #1. It would be easy to put a small piece of copper tape over the slot. Should hold up great. A 6-1 crank wheel would work. But with a wheel that spins at cam speed, you need a tooth to trigger each cylinder. The minimum number of teeth you could use would be a 12-1 wheel. I suppose punching a hole in between each tooth could work (except one) but you would need to be careful with the alignment. Quote Link to comment Share on other sites More sharing options...
z-ya Posted January 29, 2008 Share Posted January 29, 2008 The few number of teeth, the more interpolation the ECU needs to do between trigger pulses. The CAS is a three magnet wheel, correct? I'm fairly certain that the MS cannot use a three oulse per revolution wheel. Another problem with the CAS crank pully is that the magnet tend to fly off when they get old. Save yourself a lot of trouble and use a 36-1 wheel. Yes, there is some fabrication involved, but one you go MS, there is no going back to stock (easily anyway). DIYAutotune has the trigger wheels and sensors. Quote Link to comment Share on other sites More sharing options...
mobythevan Posted January 29, 2008 Share Posted January 29, 2008 A 6-1 crank wheel would work. But with a wheel that spins at cam speed, you need a tooth to trigger each cylinder. The minimum number of teeth you could use would be a 12-1 wheel. I suppose punching a hole in between each tooth could work (except one) but you would need to be careful with the alignment. Yeah, your right. Quote Link to comment Share on other sites More sharing options...
jwx Posted January 31, 2008 Share Posted January 31, 2008 The few number of teeth, the more interpolation the ECU needs to do between trigger pulses. The CAS is a three magnet wheel, correct? I'm fairly certain that the MS cannot use a three oulse per revolution wheel. Another problem with the CAS crank pully is that the magnet tend to fly off when they get old. Save yourself a lot of trouble and use a 36-1 wheel. Yes, there is some fabrication involved, but one you go MS, there is no going back to stock (easily anyway). DIYAutotune has the trigger wheels and sensors. I just wanted to correct something here. We don't actually have the crank sensors just yet, we are working on something that is easy to mount and set up. Our trigger wheels have worked with pretty much every sensor we have tested so far though. Quote Link to comment Share on other sites More sharing options...
ktm Posted January 31, 2008 Share Posted January 31, 2008 "someone, maybe it was rontyler, posted on how to do that by drilling one on the z31 trigger wheel." That works for Wolf and not MS. Wolf looks for a sync pulse to identify #1. Quote Link to comment Share on other sites More sharing options...
z-ya Posted January 31, 2008 Share Posted January 31, 2008 "someone, maybe it was rontyler, posted on how to do that by drilling one on the z31 trigger wheel." That works for Wolf and not MS. Wolf looks for a sync pulse to identify #1. Wolf uses a 4 tooth wheel for 6 cylinder applications. Three placed 120 deg appart, with the last tooth placed next to the TDC tooth so the ECU knows where TDC is. Quote Link to comment Share on other sites More sharing options...
z-ya Posted January 31, 2008 Share Posted January 31, 2008 I just wanted to correct something here. We don't actually have the crank sensors just yet, we are working on something that is easy to mount and set up. Our trigger wheels have worked with pretty much every sensor we have tested so far though. The Ford VR sensor used in EDIS systems has worked well for me in the past. Quote Link to comment Share on other sites More sharing options...
ktm Posted January 31, 2008 Share Posted January 31, 2008 Wolf uses a 4 tooth wheel for 6 cylinder applications. Three placed 120 deg appart, with the last tooth placed next to the TDC tooth so the ECU knows where TDC is. Hmmm, according to my Wolf V500 configuration file, it is setup for 6 teeth and looks for a pulse (the "7th" tooth) to determine TDC. Quote Link to comment Share on other sites More sharing options...
z-ya Posted January 31, 2008 Share Posted January 31, 2008 Hmmm, according to my Wolf V500 configuration file, it is setup for 6 teeth and looks for a pulse (the "7th" tooth) to determine TDC. I haven't installed a v500 yet, but 3.0, and 4.0 Wolf units use a 3+1 type wheel for 6 cylinders. Quote Link to comment Share on other sites More sharing options...
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