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Dyanmometer (Rolling Road) and horsepower

To: mgs@Autox.Team.Net
Subject: Dyanmometer (Rolling Road) and horsepower
From: Wayne Kube <wkube@iadfw.net>
Date: Wed, 19 Mar 1997 22:48:37 -0600
Recently, a member of the Texas MG Register arranged rolling road tech
sessions at a discount for club members.  I ran my B on it to check the
performance upgrades I have done.  Trouble is, I have no "before"
baseline to compare.  Of course, it shows horsepower at the wheels,
which is quite different from engine horsepower.  I posed that question
to the dyno manufacturer, Dynojet -
http://www.terrysjag.com/jerome/main.htm - and they replied that it
really couldn't be determined given the frictional losses in the tranny
and differential.  So, here's my question to the list:  Has anyone else
ran their 'B on a rolling road dyno, and what were the results?  I would
like to compare your performance - let me know how much, if any, your
engine differs from stock, its year, mileage since rebuild, etc.  If I
obtain enough data for comparison, I will put the info on my website -
maybe it would be interesting to see what gains you can expect to see.
        Interesting side note - they had results from a dyno run on a very
modified (as in twin turbo) Ferrari Testarosa that they claimed set a
record for horsepower on a street-legal automobile - 1,013 horsepower at
the wheels!  They also said the owner blew the engine about two weeks
later......
-- 
Keep on keepin' on!

Wayne Kube      wkube@iadfw.net
1979 MGB        http://web2.airmail.net/wkube
Plano, TX       
NAMGBR UK Site  http://www.mgcars.org.uk/namgbr
NAMGBR US Site  http://www.british-cars.org.uk/kimber/namgbr

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