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Author Topic: Je Pistons 13.5 84mm  (Read 1502 times)

Offline peanuthead

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Je Pistons 13.5 84mm
« on: March 25, 2016, 10:21:37 AM »
What gives withe the valve pocket depth.     .185 intake and .130 exhaust.I got the ptv on exhaust .083 but the intake ptv is .094.tappets set to Web cam .395 .006-.008in and .378.008-.010 ex.  106 degree intake and 108 degree exhaust

Offline peanuthead

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Re: Je Pistons 13.5 84mm
« Reply #1 on: March 25, 2016, 12:22:29 PM »
I would like to get the intake ptv closer to .050

Offline Busa57

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Re: Je Pistons 13.5 84mm
« Reply #2 on: March 25, 2016, 03:23:55 PM »
 
You could advance the intake cam 2 deg. That will reduce intake valve clearance.

Offline Busa57

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Re: Je Pistons 13.5 84mm
« Reply #3 on: March 25, 2016, 03:25:30 PM »
I personally recommend 104/107

Offline peanuthead

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Re: Je Pistons 13.5 84mm
« Reply #4 on: March 25, 2016, 08:11:16 PM »
I personally recommend 104/107
That is  the same thing Iam thinking tooo.Thanks you

Offline AlterEgo

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Re: Je Pistons 13.5 84mm
« Reply #5 on: June 29, 2016, 05:42:30 PM »
Why would you change cam timing to get a closer PtV clearance.  Shouldnt you set cam timing at the value you want, then measure clearance to insure no clashing ???
I am my own AlterEgo

Online RansomT

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Re: Je Pistons 13.5 84mm
« Reply #6 on: June 29, 2016, 11:04:34 PM »
and what is your quench area?
Fastest 1.5-Mile Pass - 252.222
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211.079 LTA. P/P 1350

Offline AlterEgo

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Re: Je Pistons 13.5 84mm
« Reply #7 on: June 30, 2016, 11:44:17 AM »
and what is your quench area?

Yes that too. 

I am my own AlterEgo