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  #1  
Old 09-16-2015, 03:46 PM
maxelrad maxelrad is offline
 
Join Date: Apr 2009
Location: pittsburgh pa
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Default RV-4 With Automobile engine ground run up

Take a look!

https://www.youtube.com/watch?v=5cp9jg9NNx0
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  #2  
Old 09-16-2015, 04:51 PM
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n82rb n82rb is offline
 
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Location: fort myers fl
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interesting, wonder what he has planned for the cowl. I might suggest that next time use a set of chocks and tie the tail down.

bob burns
N82RB RV-4
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  #3  
Old 09-16-2015, 05:22 PM
BillL BillL is offline
 
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Location: Central IL
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At first glance, this looks like a good engine match for the RV4. Hopefully we will hear/see more about this installation. It appears to sit with heads on top, assuming that box on the front is the drive unit. Also, wonder if it retains the factory ECU with all the associated benefits like timing and knock control. So many questions!
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  #4  
Old 09-16-2015, 06:15 PM
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blueflyer blueflyer is offline
 
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I don't know how this guy expects to complete a test flight if he cant keep his emotions in any better check than what he did during that ground run....
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  #5  
Old 09-16-2015, 07:37 PM
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rv6ejguy rv6ejguy is offline
 
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Location: Calgary, Canada
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Quote:
Originally Posted by BillL View Post
At first glance, this looks like a good engine match for the RV4. Hopefully we will hear/see more about this installation. It appears to sit with heads on top, assuming that box on the front is the drive unit. Also, wonder if it retains the factory ECU with all the associated benefits like timing and knock control. So many questions!
Caption says Megasquirt ECU. The cowling design will be interesting to see. This is an inline four, hence the need for the long belt drive to get the thrust line close to stock for prop clearance. Around 145hp depending on version. Hope we can learn some more and hear how it works.
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Turbo Subaru EJ22, SDS EFI, Marcotte M-300, IVO, Shorai- RV6A C-GVZX flying from CYBW since 2003- 441.0 hrs. on the Hobbs,
RV10 95% built- Sold 2016
http://www.sdsefi.com/aircraft.html
http://sdsefi.com/cpi2.htm


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  #6  
Old 09-16-2015, 07:52 PM
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Infidel Infidel is offline
 
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Location: WV22
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I can picture it now. That is going to be one ugly cowl! Maybe it was the camera angle but the prop/ ground clearance looks close.
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  #7  
Old 09-16-2015, 08:06 PM
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Mel Mel is offline
 
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Location: Dallas area
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Quote:
Originally Posted by n82rb View Post
I might suggest that next time use a set of chocks and tie the tail down.
Along with the fact that I never saw even a smidgen of "UP" elevator.
Even when the tail began to get light, I saw neutral elevator at best.
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  #8  
Old 09-16-2015, 08:13 PM
cguarino cguarino is offline
 
Join Date: May 2005
Posts: 377
Default made me nervous

A little up elevator would make me feel better.
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  #9  
Old 09-17-2015, 04:40 AM
maxelrad maxelrad is offline
 
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Location: pittsburgh pa
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I didn't use the factory ECU as it requires a code to operate from the body control computer. Custom tuning with the Microsquirt better matches the aircraft reqirements also. My cowl is complete - will show it in a later post. It appears smewhat ungainly.
Took six months to fabricate from scratch s-glass over a wood and plaster buck.
Yes - the box up front is the PSRU - cog belt driven.
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  #10  
Old 09-17-2015, 04:51 AM
maxelrad maxelrad is offline
 
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Location: pittsburgh pa
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Default photo of cowl

see it here

https://photos.google.com/photo/AF1Q...PrO4T56kpB3kdC
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