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Vince Frazier

Joined: 10 Jan 2006
Posts: 132

Posted: Tue Sep 25, 2007 6:05 am Post subject: louvers

SNIP BTW, a friend installed the louvers on the bottom of his F-1 cowl

and it had no effect so I'm not going there until last.

Thanks for you time,

Jim Stone

Louisville KY SNIP



I'm not sure if I'm the friend that Jim is referring to or not.  I

installed louvers under my cowl just in case I ever wanted to go racing

at Reno or other hot spot.  They lower my temps by 30 degrees or so.

But, I have had them blocked off all summer with no problems.



My engine runs cool anyway, too cool with the louvers open.  Typical

CHTs are 325 to 340, louvers closed, summer days, and 2300RPM and 20".

Temps will go higher with higher power, but they never go over 400 even

on long climbs.  Oil temps never go over 200, unless I forget to open

the oil cooler door or am doing multiple touch and goes.



I had very poor results with the Electroair stuff.  Jim, have you tried

turning off the Electroair and running on the mag only?  I'll bet you

see a massive temp drop.



Vince

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_________________
Vince Frazier
3965 Caborn Road
Mount Vernon, IN 47620
812-464-1839 work
812-985-7309 home
F-1H Rocket, N540VF
http://vincesrocket.com/

smokyray(at)yahoo.com
Guest

Posted: Tue Sep 25, 2007 9:48 am Post subject: louvers

Just a plug for the EI system, I have put three systems on my RV's and my Rocket. All have worked very well when installed per plans. The EI system on my Rocket has been flawless for 10 years and 500 hours and was installed back in 97.  The EI system on my RV4 now has 1500 hours on it. Jeff Rose designed a superior system that works very well when used according to the plans.

   

   I challenge anyone's system to that track record...

   

  Rob Ray

   

  



"Frazier, Vincent A" <VFrazier(at)usi.edu> wrote:

  [quote]--> Rocket-List message posted by: "Frazier, Vincent A" 

SNIP BTW, a friend installed the louvers on the bottom of his F-1 cowl

and it had no effect so I'm not going there until last.

Thanks for you time,

Jim        [quote][b]

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rocketbob(at)gmail.com
Guest

Posted: Tue Sep 25, 2007 10:27 am Post subject: louvers

The gold anodized units are great, I have one in my -6.  Its been very trouble-free.



The purple anodized units on the other hand, I would stay away from.  Jeff Rose had someone design the vacuum advance box and the trigger housing, rest is off the shelf.  The Electroair ignition is a rebranded Electromotive HPX version 2 aftermarket auto ignition system.  When they (Electromotive, not Jeff) changed the circuit design, hence the change in color, the advance potentiometers stopped working independently of each other.  For an aircraft engine that will cause problems because the units should be set so no advance occurs from RPM alone.  If you disconnect the MAP sensor they will advance, which is what they should not do, and the old gold units don't do that.  We found all of this out working with Jim Winings' purple box, which he ended up removing.  Vince Frazier worked along in parallel to us and had the same exact problems, he also ended up removing his as well.  I think the redesign by Electromotive had everything to do with why Jeff sold the business.  The new owners early on didn't have a clue as to how to resolve any of these issues, and apparently these issues are still lingering. 



Regards,

Bob Japundza

RV-6 flying F1 under const.

On 9/25/07, Rob Ray <smokyray(at)yahoo.com (smokyray(at)yahoo.com)> wrote: [quote]Just a plug for the EI system, I have put three systems on my RV's and my Rocket. All have worked very well when installed per plans. The EI system on my Rocket has been flawless for 10 years and 500 hours and was installed back in 97.  The EI system on my RV4 now has 1500 hours on it. Jeff Rose designed a superior system that works very well when used according to the plans. 

   

   I challenge anyone's system to that track record...

   

  Rob Ray

   

  



"Frazier, Vincent A" < VFrazier(at)usi.edu (VFrazier(at)usi.edu)> wrote:

   	  Quote: 	
		  --> Rocket-List message posted by: "Frazier, Vincent A"  

SNIP BTW, a friend installed the louvers on the bottom of his F-1 cowl

and it had no effect so I'm not going there until last.

Thanks for you time,

Jim         	  Quote: 	
		  

" onclick="return top.js.OpenExtLink(window,event,this)">http://forums.ma=================

	
	
[b]

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