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Re[2]: Difference in heads


It all depends on the engines.  I would hope to God that a custom 1835 would be 
built with the sense of performance parts, balancing and other goodies that 
wouldn't be found on a stock motor (and why would it be a bigger engine with 
single ports?!).

Everything else being equal (both carbed or both FI)?  Then what is meant by 
"out perform"?  Fuel economy, yes; horsepower output, no; bottom end or top end 
torque, depends where you want it.  
    Toby Erkson
    air_cooled_nut@pobox.com  <-- Please use this address for email responses
    '72 VW Squareback 1.6L bored and stroked to 2.0L
    '75 Porsche 914 1.8L, ORPCA member
    Portland, Oregon, http://www.geocities.com/MotorCity/8501/

______________________________ Reply Separator _________________________________
Subject: Re: Difference in heads
Author:  type-3-errors@umich.edu at SMTPGATE_MIME
Date:    2/18/98 12:04 PM
>It apparently is a little more efficient because it has two openings (po rts)
>in the head, one for each cylinder, as compared to the one port serving both 
>cylinders in the previous design.

It's a lot more efficient, because, in essence, the motor is just a large 
air pump.  The better it can breathe, the better the output.

A dual port 1600 will probably outperform a single port 1835, right?

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