Thanks Dave, I'll head that way.
How did you do at Sebring?
Skip
At 03:05 PM 3/23/2010, Dave Dahlgren wrote:
>Put a speed sensor with the same number of teeth on the front and
>rear of the crank and watch for degrees of separation change. that
>will read directly into degrees of twist and I have no idea what is
>acceptable to be honest. Possibly a crankshaft company could give
>some guidance there.. I would be tempted to but them with a tooth at
>14 degress ATDC as that is when peak cylinder pressure should be or
>very close to it at least and the greatest twist.. I would not swaet
>42 or 45 degrees close enough... much better than 3...
>Dave
>----- Original Message ----- From: "Skip Higginbotham" <saltrat@pahrump.com>
>To: "Dave Dahlgren" <ddahlgren@snet.net>; <land-speed@autox.team.net>
>Sent: Tuesday, March 23, 2010 5:42 PM
>Subject: Re: [Land-speed] Multiple Engines
>
>
>>Thank you and you are welcome!
>>
>>I will try to get to the 45 degree number.....coupler is made and
>>it has 20 teeth and 6 bolts so some combination of those should
>>result in 42 degrees........or so. One bolt - one tooth...
>>or 60 degrees minus 18 degrees. Dang!!! My head hurts already.......
>>
>>What can I do with my data logger to see how much the rear crank is twisting?
>>
>>Skip
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