60-2 crank and optical pickup on PNP
#1
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60-2 crank and optical pickup on PNP
Looking to run a 60-2 trigger wheel and optical pickup off the crank instead of CAS with my PNP. I was speaking with Matt Cramer today, and he believes all I would need to do is make some software changes. Anyone have a clue where I need to start? Thx
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Ben, I am *very* interested in this. What do you have in mind with respect to mounting the wheel, and where are you getting it?
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Joe, I got it second hand from Frank who's pulled out his 1.8 and motec in favor of an LS1. Actually, it's in transit and I won't have it until next week. I understand that Vishnu originally offered the items for use with the TECII. Will know more in a few days.
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Most modern cars are like this.
Ben- keep me posted, I'm primarily curious about how it attaches to the crank pulley. I do have a lathe that can turn up to about 3" (limited by the chuck at the moment), however drilling accurately spaced holes around a circle can be a bit of a challenge. If I can't come up with a new CAS soon, I may make the leap to a crankwheel as well.
#10
Could one of the wheels DIYautotune is currently offering possibly work? I need to research crank triggers, I know nothing about the MS side of using one nor why you need certain numbers of teeth or spacing.
http://www.diyautotune.com/catalog/t...eel-p-181.html
http://www.diyautotune.com/catalog/t...eel-p-181.html
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It is the Vishnu piece--was offered as part of the Tec3 kit actually. The wheel is an Electromotive wheel mounted to a custom hub that bolts to the four crank pulley bolts and has a big hole through the center. The sensor is mounted to a T-shaped dealie that you can kinda see in the photo.
Note that I tossed the 3/8 sensor as EM deemed them unreliable and made a new 1/2" sensor mount out of square aluminum tubing.
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I found one wheel in particular that really looks slick. Go to this webpage and scroll down to "5.75" lightweight trigger wheel": http://trigger-wheels.com/store/index1.html The 1.5" center hole and pre-cut slots should make it uber-easy to install and adjust. Just gotta figure out what to do in terms of a center hub...
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There has to be a way to make an aluminum adapter that bolts into the space in the center of the crank pulley and provides a surface for the wheel to mount on. If it weren't for the diameter required, I'd turn one myself...
#20
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My lathe has a 7" swing, but the chuck I have in it presently will only accommodate a maximum 3" stock, and that with the "outside" jaws installed and fully extended- from a practical standpoint it'll only hold about 2.5" with anything resembling decent clamping force and stability. A 5" chuck with plate is only $100, I should probably buy one...
I think a more practical approach however would be to have the pieces made by a small-run prototyping shop. I just did an ultra quick-n-dirty sample drawing with the emachineshop software, and it quoted me $39 ea in qty 10, $27 each in qty 25. So if a group buy came together, it would be pretty darn affordable. The trick would be to make sure we have a design that'll fit both the 1.6 (long & short) and the 1.8 pulleys. I'm thinking of a mushroom-shaped piece that replaces the flat washer-like thing that holds the pulley on, and is retained by the same four bolts. It would also probably be specific to a particular wheel, so we'd have to agree on that. If we could find something domestically like the one I linked to above (with the slots) that would be cool- or we could have those custom-made too...
I think a more practical approach however would be to have the pieces made by a small-run prototyping shop. I just did an ultra quick-n-dirty sample drawing with the emachineshop software, and it quoted me $39 ea in qty 10, $27 each in qty 25. So if a group buy came together, it would be pretty darn affordable. The trick would be to make sure we have a design that'll fit both the 1.6 (long & short) and the 1.8 pulleys. I'm thinking of a mushroom-shaped piece that replaces the flat washer-like thing that holds the pulley on, and is retained by the same four bolts. It would also probably be specific to a particular wheel, so we'd have to agree on that. If we could find something domestically like the one I linked to above (with the slots) that would be cool- or we could have those custom-made too...