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  #41  
Old 08-29-2011, 10:36 AM
Flaude Flaude is offline
 
Join Date: Sep 2010
Location: Paris
Posts: 14
Default

And I have found the solution

In fact I install the Raven like a Christen (No doc as far I know with the Raven) In the Christen Doc (and on many web site) they told you to cut the screen that goes inside the sump by maybe 10mm. With the Raven system as the connection is different you do not need to cut the screen and the problem was coming from that. The screen hold a plug to force the oil to pass inside the Inverted system. If the screen is too short , then the plug may move and of course the inverted system is shunted again and do not work.

i just machine small aluminium piece that fit inside the Raven connector The plug is now maintain by the screen in the good position and I have perfect inverted flight.

YESSSS!!!!
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  #42  
Old 09-19-2011, 09:33 PM
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Subwaybob Subwaybob is offline
 
Join Date: Jul 2011
Location: Dallas, TX
Posts: 321
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Quote:
Originally Posted by dhall_polo View Post

I think I can safely conclude that 17500 is how high an RV has to climb before it starts performing like a Cessna 172 does at sea level.
Thats great! I get madder by the minute about not having a 7...
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RV-10 QB Here 8-25-19
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  #43  
Old 09-19-2011, 10:51 PM
billgill billgill is offline
 
Join Date: Jul 2005
Location: Lee's Summit, MO
Posts: 99
Default Not even close...

170 knots TAS at 17500 is not uncommon for an IO-390 7 or 8 -- something never done by a C-172 in level flight.

Bill
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  #44  
Old 11-02-2011, 12:24 PM
HotDoc HotDoc is offline
 
Join Date: Oct 2011
Location: Germany
Posts: 7
Wink RV 7 w IO 375 and Raven inverted, MT 3-blade, James cowl

Hi guys,

we're some german folks willing to set up an RV7 with the above setup. However, since we do havehelp from an A&P who built already like 7 7's, this buddy recommends to stick strictly onto vans plans, because:
The cooling-baffle might not fit
"Unknown vibrations" not yet tested, compared to a IO 360
The MT-guys don't feel to happy with this, however would supply the prop
The Raven system is not known yet in Germany??
The exhaust would need some mod's?
What kind of mount would one need for the engine?
The IO 375 weighs 14 lbs less than the "original" 360 lycoming and produces significantly more power, so the paper looks good for the beginning.
And last, I'm eyeballing the James cowl. Has anyone experience with that one?

Looking forward to hearing from y'all

HotDoc
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  #45  
Old 11-02-2011, 12:54 PM
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Bastien Bastien is offline
 
Join Date: Jun 2010
Location: Vannes, FRANCE
Posts: 140
Default

Quote:
Originally Posted by HotDoc View Post
Hi guys,

we're some german folks willing to set up an RV7 with the above setup. However, since we do havehelp from an A&P who built already like 7 7's, this buddy recommends to stick strictly onto vans plans, because:
The cooling-baffle might not fit
"Unknown vibrations" not yet tested, compared to a IO 360
The MT-guys don't feel to happy with this, however would supply the prop
The Raven system is not known yet in Germany??
The exhaust would need some mod's?
What kind of mount would one need for the engine?
The IO 375 weighs 14 lbs less than the "original" 360 lycoming and produces significantly more power, so the paper looks good for the beginning.
And last, I'm eyeballing the James cowl. Has anyone experience with that one?

Looking forward to hearing from y'all

HotDoc
Hi,
I'm a RV8 builder but I think the informations I have could be right for a 7.
Van's baffles need modification to fit the conical fin on the cylinder (fin diameter increase from the root to the cylinder head). I contacted Bart at Aerosport Power and that is what he recommends.

Vetterman exhaust produces at least a 4 in 4 and a crossover exhaust for the cold air sump mounted on the IO-375 (the dual heat muff on the 4 in 4 is a plus).

I also have a James cowl, there is not interference between the cowl and engine.

The engine mount is the same as the IO-360 M1B ( I can't remember if it is the DI or the DII but someone else will tell you)

The Whirlwind guys think it is a good engine

I weighted the IO-375 M1S (w/o : prop extension, mags (I use dual plasmaIII) alternator) and I found 125,9 Kg <=> 277lb which is pretty light. It is a plus on the 8 which is generally nose heavy.

I don't have a raven but the christen fit well.

There is a mixture and throttle bracket mod to do ( I can send you pics if needed) but nothing difficult.

But as my 8 isn't flying yet I can't report any review for the moment.

Hoping this will help you

Have a good evening.
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Last edited by Bastien : 11-02-2011 at 12:58 PM.
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  #46  
Old 11-02-2011, 12:57 PM
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UnPossible UnPossible is offline
 
Join Date: Jan 2008
Location: Granbury, TX
Posts: 543
Default

I have an IO-375 with Lycoming Cylinders and Van's standard IO-360 baffle kit fit just fine with little to no modification (other than hearing from other folks that the standard IO-360 oil cooler may not be sufficient for the 375 and modifying the rear baffle to work with a FW mounted larger oil cooler)
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  #47  
Old 06-04-2012, 02:40 PM
bruce2 bruce2 is offline
 
Join Date: Apr 2010
Location: south of france
Posts: 2
Default

Hi,
have just flown my 8 with an IO375, goes great, sounds great! Max so far 186kts, but 130kts at 24 ltr/hr. 100kts at 19ltr/hr and what a machine!

IO

Last edited by rv7boy : 06-04-2012 at 04:12 PM. Reason: Deleted 10 lines of spacing...
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  #48  
Old 06-04-2012, 07:57 PM
MTBengel MTBengel is offline
 
Join Date: Feb 2011
Location: Nashville, TN
Posts: 50
Default io-375 throttle and mixture brackets

Just mounted my IO-375 in my 7. I was wondering what throttle/mixture brackets to use with the Silver Hawk horizontal injection and cold air sump. Did you use Van's brackets? What mods were required?
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RV7 - under construction

Last edited by MTBengel : 06-04-2012 at 07:59 PM.
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  #49  
Old 06-04-2012, 11:06 PM
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Dan Langhout Dan Langhout is offline
 
Join Date: Mar 2008
Location: Huntsville, AL USA
Posts: 546
Default Mixture of custom and Van's

I made a custom throttle cable bracket and mixture bell crank bracket and then used the Van's mixture bell crank and mixture cable support bracket.
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2020 =VAF= Dues PAID . . . . .
RV-7 N528DP slow build
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665 hours and counting . . . .
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Last edited by Dan Langhout : 06-04-2012 at 11:11 PM.
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  #50  
Old 06-05-2012, 12:20 PM
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704CH 704CH is offline
 
Join Date: Apr 2009
Location: Sammamish, WA
Posts: 208
Default Figure out your oil cooler solution before drilling cable holes

Aerosport recommends the 13 tube cooler for the 375's. While that might be a bit big, it is what they recommend and can only be mounted on the firewall, right where Vans has you drill the prop and mixture holes. So before you drill those holes, make sure you have thought through what cooler you want and how you want to mount your cooler.

I ended up using a 9 tube cooler mounted in the baffles, which is larger than the Van's 7 tube used for the 360. I think I will be OK and will let people know if I have any cooling concerns.

http://www.704ch.com/2012/05/oil-cooler.html
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Sammamish, WA
RV-7 Standard Build - Tip UP
Flying ! As of 032913
Superior IO-375, WW200RV, Single Lightspeed, SkyView, GTN


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Last edited by 704CH : 06-05-2012 at 12:27 PM.
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