Author Topic: Isky #95 grind  (Read 433 times)

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Offline Mower Maniac

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Isky #95 grind
« on: September 10, 2017, 02:11:08 PM »
Does anybody have the Isky #95 grind specs for an intek Single cam?


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Offline redline

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Re: Isky #95 grind
« Reply #1 on: September 11, 2017, 09:35:00 AM »
I had the first #95 grind back in the day. I don't recall the specs anymore, but I might still have a grind sheet on my shelf in the shop.
I will check tonight.
Ed King

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Offline Mower Maniac

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Re: Isky #95 grind
« Reply #2 on: September 11, 2017, 04:22:57 PM »
Thanks
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Re: Isky #95 grind
« Reply #3 on: September 11, 2017, 05:13:34 PM »
I looked in all my usual places, and no grind sheet for that particular cam. I must have tossed them. I still have a few from our last Tecumseh grinds, but thse won't help.

The old Precision Cheetah cam, which was in all reality only good for making power in about a thousand RPM window had specs of

Intake-open @40, Close @80, centerline of 108, 246 duration
Exhaust-open @ 79, Close @40, centerline of 111, 247 duration.
(I found an old sheet on it) They do not provide lobe separation angles..

If memory serves, the #95 had a 106 or 107 centerline, alot more overlap, and lift in the .310" range.
It also made power through a much wider and more useable range.
Ed King

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Offline Mower Maniac

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Re: Isky #95 grind
« Reply #4 on: September 11, 2017, 05:41:07 PM »
Thanks. Do you know up to what rpm the 95 made power to?
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Offline berthyd

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Re: Isky #95 grind
« Reply #5 on: September 11, 2017, 06:50:53 PM »
Ed, I think you're pretty close on those numbers.

Bert
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Offline cycloneracer

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Re: Isky #95 grind
« Reply #6 on: September 11, 2017, 07:26:52 PM »
Ed

You sent me the grind sheets when I bought the engines. 

I passed them on to who I sold them to.  I don't remember where they went. 

Great engines.......just too many moron drivers in the CP class at that time.   
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Offline redline

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Re: Isky #95 grind
« Reply #7 on: September 12, 2017, 05:25:51 AM »
Thanks. Do you know up to what rpm the 95 made power to?

It would pull past 6K, not sure how far though, as I limited it to there, as I had a tendency to break crankshafts.
Lots of crankshafts.
Ed King

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Offline Mower Maniac

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Re: Isky #95 grind
« Reply #8 on: September 12, 2017, 07:49:28 AM »
Ok. Thanks
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Offline berthyd

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Re: Isky #95 grind
« Reply #9 on: September 12, 2017, 08:05:09 AM »
Ed, I thought you told me that cam was good for 9200rpm.

Bert
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Offline redline

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Re: Isky #95 grind
« Reply #10 on: September 12, 2017, 11:04:12 AM »
Might very well be.
Briggs crankshafts are only good for about 1500 though..
Ed King

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Offline Mower Maniac

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Re: Isky #95 grind
« Reply #11 on: September 13, 2017, 06:21:44 PM »
Do you by chance have a ballpark estimate of duration?
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