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Old 11-14-2012, 07:36 AM   #1
ozmoses OP
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is it an Aero-head?

http://msn.foxsports.com/other/story...us-team-111412
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Old 11-14-2012, 09:23 AM   #2
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Now this is an aero head

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Old 11-14-2012, 10:26 AM   #3
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Always fascinated that the power take-off (gearbox) is at the nose end of the engine that we all know so well..... but there are a lot of ultralights out there powered by R100 engines... makes sense, when you think about it!

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Old 11-14-2012, 01:09 PM   #4
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Love it!
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Old 11-14-2012, 01:37 PM   #5
Rob Farmer
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Quote:
Originally Posted by bpeckm View Post
Always fascinated that the power take-off (gearbox) is at the nose end of the engine that we all know so well..... but there are a lot of ultralights out there powered by R100 engines... makes sense, when you think about it!

The power take offs on the rear of the engine in the video (look at the oil filler) The heads are on back to front.
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Old 11-14-2012, 01:41 PM   #6
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Quote:
Originally Posted by bpeckm View Post
Always fascinated that the power take-off (gearbox) is at the nose end of the engine that we all know so well.....
The one above appears to be at first glance due to the headers coming off the engine, but look closely. You can see the oil filler and timing plug on the same side of the cylinder as the headers !?!? They must've done some big time modification on that engine. That means they're using a left side head on the right side and vise versa. It also means they must've ground a custom cam to make that work. Yikes. Crazy shit.
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Old 11-14-2012, 01:43 PM   #7
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Originally Posted by Rob Farmer View Post
The power take offs on the rear of the engine in the video (look at the oil filler) The heads are on back to front.
Damn. Rob beat me to the punch by 4 minutes.
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Old 11-14-2012, 02:21 PM   #8
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Look at which end the exhaust is coming out of the head.
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Old 11-14-2012, 04:53 PM   #9
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Originally Posted by bmweuro View Post
Look at which end the exhaust is coming out of the head.
???
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Old 11-14-2012, 10:22 PM   #10
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???
It's coming out of the intake side.
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Old 11-15-2012, 06:07 AM   #11
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Originally Posted by bmweuro View Post
It's coming out of the intake side.
Chris, what's your take on how they did this? They must be using a left head on the right side and vise versa, but they would've had to grind a custom cam to make this work, right?
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Old 11-15-2012, 09:27 AM   #12
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Quote:
Originally Posted by Airhead Wrangler View Post
Chris, what's your take on how they did this? They must be using a left head on the right side and vise versa, but they would've had to grind a custom cam to make this work, right?
I wanted to do the same thing to a motor for my chopper build so I found the company that makes a new 308 cam for the 79 motors and yes they flipped the pistons and heads left to right.
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Old 11-15-2012, 09:58 AM   #13
Rob Farmer
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Theres an article here on Aero conversions. Nothing about reversing the heads though http://www.esatclear.ie/~xair/conversion.htm
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Old 11-15-2012, 12:31 PM   #14
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As long as the cam profile is the same for intake and exhaust, you should be able to just put the cam timing 180 out.
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Old 11-15-2012, 12:38 PM   #15
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Originally Posted by US_Marshall View Post
As long as the cam profile is the same for intake and exhaust, you should be able to just put the cam timing 180 out.
MMM, no. You'd still have your intake openning for the exhaust stroke and your exhaust openning for the intake stroke. Putting it 180 degrees out won't change the sequence. That engine won't run.
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