Yeah yeah. The diff is I dropped digits off pi at 3.14 where you went to
3.14159 blah blah. Doesn't matter though...industry std says that 238.4639
blah blah blah is less than .5 so drop the fraction if you want a whole
number. 238. Same thing for my number: 238.34299 (diff was the .00159 of
pi)
Ron
00 SLT QC 4X2 5.9 46RE 3.92 LSD
For modifications see my DML Profile
-----Original Message-----
From: owner-dakota-truck@buffnet.net
[mailto:owner-dakota-truck@buffnet.net]On Behalf Of bernd@texas.net
Sent: Friday, November 17, 2000 3:00 AM
To: dakota-truck@buffnet.net
Subject: Re: DML: RE: Re: RE: 239, or 238?-- 238 1/2
Ron,
((0.7853982*15.2881)*3.31)*6 = 238.4639099574012
Rounded = 238.5 (Industry rounds to the next integer so the 238.5 = 239)
The formula that I posted is an industry standard.
- Bernd
> Here we go off the beaten path again.
>
> The 318 is a 5.2. A 5.2 (if it's truly a 5.2) when converted comes out to
> be 317.304 which doesn't even round to 318. It rounds to 317. But
suppose
> it is a 318. If we convert the other way we come out with 5.212 liter
> engine. So taking 75% of a 318 (if it is a 318) would get you to 238.5,
but
> converting 3.9 to cubic inches nets 237.978.
> Pick your poison. To satisfy Bernd and co, we'll start at the basics like
> he did. From the US side bore is 3.91 inches and the stroke is 3.31
inches.
> 3.91/2 = 1.955 inches, that's our radius, times itself = 3.822025 times
3.14
> = 12.001158 times 3.31 (stroke) = 39.723832. That's the number of cubic
> inches in one cyl. times 6 = 238.34299. That's rounded to 238.
>
> Ron
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