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Old 07-30-2003, 01:58 PM
1973 450SL 117.982 107.04
Join Date: Feb 2003
Posts: 53
Exclamation Installing pivital engine

I am planning on installing a pivital engine in my 73 450SL
I think it will work great as long as I can get some universal mounts...
what do you think of my idea?
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Old 07-30-2003, 02:33 PM
Posts: n/a
cool concept, I bet you'd be the only one on the block with a pivotal engine, or state for that matter!! Why not a small block ford or chevy engine? Easy to get parts for and increase horsepower as your needs vary!!
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Old 07-31-2003, 07:10 AM
Posts: n/a
I think P.T. Barnum got it right.

Have a great day,
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Old 07-31-2003, 08:51 AM
Registered User
Join Date: Dec 2002
Location: Grand Rapids, MI
Posts: 766
WHat some guys won't do to get away from the dealer's service department....
Looks fascinating, but parts might be an issue if the company doesn't make it.
Craig Bethune

'97 SL500, 40th anniversary edition

'04 Olds Bravada (SWMBO's)
'06 Lexus ES330
'89 560SL (sold)

SL--Anything else is just a Mercedes.
(Kudos to whoever said it first)
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Old 07-31-2003, 03:17 PM
Q Q is offline
Registered User
Join Date: Aug 2000
Posts: 839
The concept is interesting. The only question I have regards reciprical mass. It looks to be significantly increased with the pivotal piston.

One other thing that seems curious is a square bore. I've heard of oval pistons before. Wouldn't heat expansion be a problem?
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Old 07-31-2003, 04:19 PM
Join Date: Mar 1999
Location: Tucker, Ga USA
Posts: 12,153
Saw that engine design back in 1996 or 97 in popular science magazine.
They were going to "change" the way that cars were made BUT the reliability of the engine has dis-proved their claims!
Another 2 stroke engine like that is the ORBITAL, also from down under!
MERCEDES Benz Master Guild Technician (6 TIMES)
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