 Anyone tried an aircooled Flat 8, With two fours? |
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| r_towle |
 Jan 28 2005, 12:49 PM
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Custom Member  Group: Members Posts: 24,658 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States 
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Has anyone tried to build a flat 8 with two type 4 motors?
Theoretical questions. Assumptions 2 motors each producing 100 HP and 100 Lb/ft of Torque The motors are end to end, front to rear. The cranks are fastened together either bolted or welded. 1) Would you get 200hp and 200 lb/ft or torque? or is there some multiplier...seems like you would produce more torque.. 2) could it be done with a single ignition system available for sale off the shelf. 3) could you do it without two distributors? crank fired ignition system..I am thinking that there could be a wheel placed in between the motors to give you something to time from. 4) I am assuming either a nice FI system, or four carbs. Has anyone done this? I would like to see some articles or web pages if this has been done in the aircooled world... Thanx in advance Rich |
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| ClayPerrine |
Feb 27 2006, 09:06 PM
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Life's been good to me so far..... Group: Admin Posts: 15,950 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille
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The second order vibration issue was solved in the second generation crank for the 908 engine. At the Fort Worth parade I talked with a guy who does restorations on 908s about this. He sent me the 908 firing order,but I lost that email when I left MS. (IMG:http://www.914world.com/bbs2/html/emoticons/sad.gif) Anything longer than an 8 in a 911 style engine would make the crank too long. That would produce the torsional losses that they found in the 917 engine that prompted the center drive setup on it. Even the output drive on a 917 is taken from the center. I figure if this could be done, then it would require a flat fan. Any ideas on it? |
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Posts in this topic
r_towle Anyone tried an aircooled Flat 8 Jan 28 2005, 12:49 PM
Mueller yep, a few have been done........I know I've p... Jan 28 2005, 01:03 PM sanman I thought of it but I think it would be
too lo... Jan 28 2005, 01:05 PM r_towle i was hoping you would answer...you always think o... Jan 28 2005, 01:05 PM andys It's been done both ways. I saw a pic years ag... Jan 28 2005, 01:08 PM r_towle honestly cooling seems like a simple part of it ..... Jan 28 2005, 01:14 PM Cloudbuster Double displacement does not usually equal double ... Jan 28 2005, 01:22 PM nebreitling i would think that you could never get double the ... Jan 28 2005, 01:36 PM Jake Raby Already have a print in with moldex on the crank.
... Jan 28 2005, 01:59 PM synthesisdv asked the same question a while back....
here... Jan 28 2005, 02:19 PM Cloudbuster Hans Dahlbeck? Isn't he the brain donor in ... Jan 28 2005, 02:23 PM synthesisdv 