thats simple..........
its an American principle...........
"more is better...and too much is just enough".........
you know, they thought they might break into that
Harley demographic, more rocking moments/couplings
biggy size me, cuz I dont want an ordinary coronary
I want one that takes me completely out type of rationale
I still strive for the more is better principle at home..........
thats when I learned about being careful what you wish for.......
"no I dont think a size 12 is better than a size 8"
Joe
Quoting "Albaugh, Neil" <albaugh_neil@ti.com>:
> Rick;
>
>
>
> It isn't possible to balance a 4-cylinder engine completely, no matter
> what you do. All you can do is minimize the vibration.
>
>
>
> On the other hand, an in-line 6 cylinder engine or a V-12 can be
> balanced but a V-6 or V-8 can't be completely balanced. There are
> "rocking couples" that cause vibration in engines that do not have
> symmetry.
>
>
>
> Now--- someone explain to me the rationale behind a 10- cylinder engine.
> ??????
>
>
>
> Regards, Neil Tucson, AZ
>
>
>
>
>
> -----Original Message-----
> From: owner-land-speed@autox.team.net
> [mailto:owner-land-speed@autox.team.net] On Behalf Of Rick Yacoucci
> Sent: Monday, October 11, 2004 10:46 AM
> To: land-speed@autox.team.net
> Subject: Crank Balancing ( Math )
>
>
>
> I got a "what if" for the math guru's
>
>
>
> Let say you want to take 4 cylinder engine and take out two pistons and
> run
>
> it as a two cylinder.
>
> You need to put weight back on the crank journals for the engine to stay
> in
>
> balance
>
>
>
> But how much weight???........
>
>
>
> I would think you would need to put the whole rotating weight of the rod
> and
>
> bearing
>
> Plus a portion of the reciprocating weight of the whole piston and rod
>
> assembly
>
>
>
> The firing order is 1-2-4-3 so we would either run 2 and 3 or 1 and 4
>
> because they run 360 deg apart
>
>
>
>
>
> Rod weight
>
> Total Weight 346 grams
>
> Rotating Weight 251 grams
>
> Reciprocating Weight 95 grams
>
> Center to center 4.775
>
>
>
> Main bearing weight 23.5 grams
>
>
>
> Complete Piston weight 293.3 grams
>
>
>
>
>
> Rick
>
-------------------------------------------------
This mail sent by http://webmail.rushmore.com
|