Date:         Sat, 23 Oct 2004 19:00:49 -0500
Reply-To:     Bruce Nadig <motorbruce@HOTMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Bruce Nadig <motorbruce@HOTMAIL.COM>
Subject:      Re: Project Vanagon Dyno Results & Comparison
Comments: To: maxjoyce@IPA.NET
Content-Type: text/plain; format=flowed

Keep in mind that different brands and types of dynos yield different
readings. Always make sure you are comparing apples to apples.

Cheers,
Bruce
motorbruce
motorbruce@hotmail.com


>From: Max Wellhouse <maxjoyce@IPA.NET>
>Reply-To: Max Wellhouse <maxjoyce@IPA.NET>
>To: vanagon@GERRY.VANAGON.COM
>Subject: Re: Project Vanagon Dyno Results & Comparison
>Date: Sat, 23 Oct 2004 08:50:13 -0500
>
>The dyno test I had done on my Boston Bob slightly(mild cam and slight
>porting if memory serves) modified engine done last May on a Mustang dyno
>in Omaha yielded  85.2 bhp@4750  at rear wheels and 105.7 ft/lb. of torque
>at 3000.   As best I can interpolate the computer graph, I had 50 hp at
>2500 and still had close to 80 hp at 5500rpm.  Torque at 2500 was right at
>100 ft/lbs. and climbed to the max at 3k and still had 100 ft. lbs. at 4300
>before gradually tapering to 75ft.lbs. at 5500 rpm.horsepower at 50 mph(for
>whatever that's worth )was 16.00, but I have a longer legged 4.57 r/p and a
>.77 4th. The tech ran the motor(once warmed up) to 5800rpms repeatedly as
>we were setting the Haltech to run slightly rich in the upper rpm
>ranges.   Yes, I was holding my breath during those runs!  Temp was in the
>mid 80's and major industrial fans were necessary to keep the motor
>cool.  I have gotten 20 mpg on the road when the roof rack is off  and I
>don't have boats on top of it going 65-70 mph but remember, this motor only
>does 3400 rpm at 70 mph..  This  90 GL weighs 4000 lbs with the AC and PS
>removed.  Sorry folks, but I'm out of dtate.  you can do your own 60%
>calculations if need be.
>
>Max