OST-026: "My White Hatch"
05-15-2014, 05:45 PM (This post was last modified: 05-15-2014 05:45 PM by oldeskewltoy.)
Post: #46
RE: OST-026: "My White Hatch"
from another forum Wrote:my math says you need a 5.415mm thick bucket.
So the closest bucket is 13751-23180 @ 5.42mm thick

Bean Bandit Wrote:Still a bit sleepy Wink but should be 5.42 which is 13751-23180
5.12+0.495 = 5.615 - 0.2 (for intake clearance) = 5.415 (all numbers in mm).
As the lifters are available in increments of 0.02 the 5.42 is the closest match.
Taken from the list here

from another forum Wrote:13751-23280.

Edit.. nope that's less then .002" left.


13751-23180 (5.42)
that should leave about .0072"

Closest... yes.... but I wont be using that one, I'll be using 23170.

Here is why...

The cams call for an intake clearance of .2mm (.0078") If this head had either a plain lap-in, or a street 3 angle, I would say it was good enough.... BUT, remember this has a "race" 3 angle, the valve is cut 1 degree less then the seat. This means during break in the valve may move a tiny amount up on its seat. I asked a few machine shops who build race engines and .0005" should be accounted for....

So as much as I would really like to get the 23180, I purchased the 23170 instead.

**IF** I had my own equipment, I could disassemble that valve and clip the tip of the valve .0013" and be perfect with the 23180.


More to come.... Hurray!

Dan -

You can |Sad .... OR you can ask for help!!!

OST Porting service - http://hachiroku.net/forums/showthread.php?t=19991
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Messages In This Thread
Re: OST-026: "My White Hatch" - Bean - 05-15-2014, 06:41 AM
RE: OST-026: "My White Hatch" - oldeskewltoy - 05-15-2014 05:45 PM
[] - robokill - 03-27-2014, 12:03 AM
[] - oldeskewltoy - 03-29-2014, 01:51 AM
[] - oldeskewltoy - 03-31-2014, 01:16 AM
[] - oldeskewltoy - 03-31-2014, 06:41 PM
[] - krullibull - 03-31-2014, 07:59 PM
[] - oldeskewltoy - 04-01-2014, 12:51 AM
[] - Ivan141 - 04-01-2014, 10:51 AM
[] - pack - 04-01-2014, 01:05 PM
[] - oldeskewltoy - 04-02-2014, 03:38 AM
[] - Project D - 04-02-2014, 10:43 PM
[] - oldeskewltoy - 04-03-2014, 10:57 PM
[] - d3nso - 04-04-2014, 07:14 AM
[] - Bean - 04-04-2014, 10:10 AM
[] - oldeskewltoy - 04-04-2014, 08:12 PM
[] - ZDoman - 04-04-2014, 08:50 PM
[] - oldeskewltoy - 04-04-2014, 09:16 PM
[] - oldeskewltoy - 04-05-2014, 12:05 AM
[] - oldeskewltoy - 04-05-2014, 06:25 PM
[] - oldeskewltoy - 04-06-2014, 06:36 PM
[] - oldeskewltoy - 04-08-2014, 02:23 AM
[] - oldeskewltoy - 04-11-2014, 06:04 PM
[] - robokill - 04-11-2014, 08:44 PM
[] - oldeskewltoy - 04-11-2014, 09:56 PM
[] - oldeskewltoy - 04-12-2014, 08:56 PM
[] - oldeskewltoy - 04-14-2014, 04:50 PM
[] - oldeskewltoy - 04-15-2014, 07:14 PM
[] - oldeskewltoy - 04-16-2014, 03:49 AM
[] - oldeskewltoy - 04-16-2014, 11:07 PM
[] - robokill - 04-16-2014, 11:14 PM
[] - oldeskewltoy - 04-17-2014, 07:42 PM
[] - Bean - 04-17-2014, 10:09 PM
[] - oldeskewltoy - 04-18-2014, 01:34 AM
[] - oldeskewltoy - 04-19-2014, 01:47 AM
[] - oldeskewltoy - 04-21-2014, 06:19 PM
[] - banpei - 04-21-2014, 08:53 PM
[] - oldeskewltoy - 04-24-2014, 01:16 AM
[] - Ivan141 - 04-24-2014, 09:48 AM

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