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Author Topic: 1397 cam degree numbers  (Read 4990 times)

Offline peanuthead

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1397 cam degree numbers
« on: March 27, 2015, 11:53:41 PM »
Hi guys.i have a 03 1397 busa with 13.5 JE pistons,2 intake cams,stock head,counterbalancer gear removed.I have tryed a number of different cam numbers but wonder what would make the most hp for my econo set up.Thanks Adam
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Offline Stainless1

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Re: 1397 cam degree numbers
« Reply #1 on: March 28, 2015, 09:14:21 AM »
Well that is variable... 108 to 110 range on both cams will be in there... did you try a search on cam numbers... there is a thread out there that talked about it.  I set mine 108 I 110E I think... that motor was a long time ago and it had custom cams.
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Offline peanuthead

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Re: 1397 cam degree numbers
« Reply #2 on: March 28, 2015, 05:17:30 PM »
Ok Stainless.I was just wondering what is the benefit of having a high number cam degree verses a low number cam degree.Thanks Adam.
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Offline Stainless1

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Re: 1397 cam degree numbers
« Reply #3 on: March 29, 2015, 08:46:49 AM »
Increased cranking compression... piston to valve clearance..... better performance...
You might want to check piston to valve clearances +/- 20 degrees about TDC to ensure they don't get too cozy.
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208.959 MPH NA GSXR 1000

Offline peanuthead

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Re: 1397 cam degree numbers
« Reply #4 on: March 29, 2015, 08:11:07 PM »
Ok Thanks
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Offline fvance

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Re: 1397 cam degree numbers
« Reply #5 on: March 30, 2015, 12:01:11 PM »
When I was running two intake cams I think I had them at 106/106. I amnot sure, that was a long time ago and I am OLD. :hys:
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Offline peanuthead

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Re: 1397 cam degree numbers
« Reply #6 on: March 30, 2015, 08:56:22 PM »
^^^^ Thanks brother.You are not that old now are you ??
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Offline fvance

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Re: 1397 cam degree numbers
« Reply #7 on: March 31, 2015, 09:53:51 AM »
Naaa I am only 71!! Just a young whippersnapper. :hys:
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WORLDS FASTEST PRODUCTION MOTORCYCLE
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Top Speed 235 mph
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Offline peanuthead

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Re: 1397 cam degree numbers
« Reply #8 on: April 01, 2015, 10:36:41 AM »
Iam 51 yrs young.LOL I set the cams at 106 intake and 108 exhaust.Does anyone take out the intake cam positioning sensor and fill the engine with oil though there to help with a new build engine start up ??? .Just wondering if it would help.Thanks Adam
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Offline fvance

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Re: 1397 cam degree numbers
« Reply #9 on: April 01, 2015, 11:19:51 AM »
On a new build I fill the oil filter, fill the engine the regular way. I leave the spark plugs out and spin the motor until it puts out the oil light.
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WORLDS FASTEST PRODUCTION MOTORCYCLE
VANCE & FORSTALL RACING
Top Speed 235 mph
HP by Carpenter & Johnny Cheese  Engine by Knecum
SponsersCATALYST COMPOSITES,JOHNNY CHEESE,KNECUM RACING ENGINES,MURRAY EXHAUST,CARPENTER RACING
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