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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


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