Todd Carrico wrote:

Why are we trying to go Plugs up?

What are the benefits/trade-offs?

You got six months? Just kidding. There are guys on here that
say it is OK but I am not one of them.

The big draw back to my way of thinking is the complicated
oil pan required. This adds to the effective volume of the
engine which of course uses up more room in the cowl.
The other major drawback is, it is hard to bleed the water
jacket of trapped air risking overheating. The stock upright
location places the water inlet and outlet at the highest
point on the engine.

The third drawback, again to my way of thinking, is, it is
hard to design a simple motor mount that will take the 
required six G download.

Those that say it gives a lower cowl are forgetting the
spark plugs stick up. 

One down side of the stock upright configuration is the 
alternator needs to be moved in some installations to 
clear the cowl. Also the neck of the
water pump may need to be cut off and redone.

In real old engines with distributors it is next
to impossible to lower the height of the distributor.
In those cases IMHO it is better to convert to electronic
ignition rather than run the engine plugs up.

On the other hand Neil and Ed seem to have these problems
worked out as they are both running plugs up.

Did I forget anything Neil and Ed?

Paul Lamar
 
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