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  #11  
Old 08-03-2019, 05:05 AM
mturnerb mturnerb is offline
 
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Location: Ponte Vedra, FL
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Originally Posted by Cwood2000 View Post
Very timely string as I as scratching my head how I was going to make this work. I?ll order the kit, can someone point me to the modifications required for the snorkel?
Excellent thread on the topic: http://www.vansairforce.com/communit...d.php?t=162451
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  #12  
Old 08-03-2019, 06:31 AM
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Originally Posted by Carl Froehlich View Post
At that point I decided my desire for the AFP system was outweighed by the added work to make it happen.

It turns out I was not the first person to find this out as several other RV-8 builders had to exchange the AFP system for the stock Precision unit. Talking with Van?s they also made it clear they were discussing the issue with Thunderbolt as well.
There lies the challenge for the EAB vendors. The market has been greatly expanded by the availability of kits and packages which require only assembly, with little fabrication. The larger marketplace is good for everyone.

The flip side is a growing notion that there is something "wrong" when things don't just bolt together, or that fabrication is an unjustified burden.
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  #13  
Old 08-04-2019, 06:42 AM
chaskuss chaskuss is offline
 
Join Date: Mar 2005
Location: SE Florida
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Default AFP FM200 Installation

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Originally Posted by DanH View Post
Depends on the choice of FM-150 or FM-200.

The 150 has a flanged inlet and mimics the physical dimensions of an AvStar or Bendix RSA-5, thus there should not be cowl or snorkel issues.

The 200 is larger, and has no intake flange, just a round tube shape requiring a clamped connection. The extra length can require a cowl mod, and the flanged Vans snorkel would need modification if it's your choice of intake filtration.

The linkage kit is apparently required with the FM150, but that's not a cowl issue.
snipped
Carl, I'm curious...your fit issue was FM150 or FM-200? I'm flying an FM200 on an 8, same horizontal sump.
Dan,
As I also have an FM200, I'd like your thoughts/comments regarding it's fit and operation on your engine. How does your air filter housing interface with the cowl? I found some photos in your "Frankensnorkel" folder. None of them deal with the cowl interface.
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  #14  
Old 08-04-2019, 08:15 AM
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DanH DanH is offline
 
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Originally Posted by chaskuss View Post
Dan,
As I also have an FM200, I'd like your thoughts/comments regarding it's fit and operation on your engine. How does your air filter housing interface with the cowl? I found some photos in your "Frankensnorkel" folder. None of them deal with the cowl interface.
I don't think the FM-150 existed when I bought the 390, so it was the FM-200 or an RSA-5 type. I wanted Airflow Performance, not Precision.

The FM-200 may not make any additional power on a 360/390, as compared to an FM-150. The intake restriction is probably the inlet flange on the sump plenum, smaller than the FM 200's throat diameter, and requiring an adapter. Regardless, it runs fine.

The unit is installed with the mixture and throttle levers on the bottom. I welded up a cable bracket which bolts to the bottom of the sump.

As noted, the FM-200 is longer than the Bendix-style units, so a snorkel was never in my plans. That was ok, as I was going to revise the cowl anyway.

http://www.vansairforce.com/communit...05&postcount=1

http://www.vansairforce.com/communit...7&postcount=11

http://www.vansairforce.com/communit...2&postcount=13

http://www.vansairforce.com/communit...9&postcount=15

http://www.vansairforce.com/communit...5&postcount=19
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  #15  
Old 08-04-2019, 09:48 AM
chaskuss chaskuss is offline
 
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Default AFP FM200 Installation

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Originally Posted by DanH View Post
snipped The intake restriction is probably the inlet flange on the sump plenum, smaller than the FM 200's throat diameter, and requiring an adapter. Regardless, it runs fine.

The unit is installed with the mixture and throttle levers on the bottom. I welded up a cable bracket which bolts to the bottom of the sump.snipped
Yes, I have that adapter. Were you able to use the stock throttle & mixture cables supplied by Vans? If not, what length cables did you use? I like your cable heat shield, well done! How is the plastic outer covering doing? Does the heat shield protect them well?

Do you know what main jet is in your FM200?
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  #16  
Old 08-04-2019, 10:48 AM
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DanH DanH is offline
 
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Quote:
Originally Posted by chaskuss View Post
Yes, I have that adapter. Were you able to use the stock throttle & mixture cables supplied by Vans? If not, what length cables did you use? I like your cable heat shield, well done! How is the plastic outer covering doing? Does the heat shield protect them well?

Do you know what main jet is in your FM200?
Cables...hmm, I've slept since then. The green ones for sure. Probably stock length, as I made an extension for one of them.

Same cables, 870 hours now.

Whatever jets Don or Kyle put in there circa 2007. Spot on.
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  #17  
Old 08-04-2019, 12:30 PM
chaskuss chaskuss is offline
 
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Default FM200 Updated air box design??

Quote:
Originally Posted by DanH View Post
I don't think the FM-150 existed when I bought the 390, so it was the FM-200 or an RSA-5 type. I wanted Airflow Performance, not Precision.

The FM-200 may not make any additional power on a 360/390, as compared to an FM-150. The intake restriction is probably the inlet flange on the sump plenum, smaller than the FM 200's throat diameter, and requiring an adapter. Regardless, it runs fine.

The unit is installed with the mixture and throttle levers on the bottom. I welded up a cable bracket which bolts to the bottom of the sump.

As noted, the FM-200 is longer than the Bendix-style units, so a snorkel was never in my plans. That was ok, as I was going to revise the cowl anyway.

http://www.vansairforce.com/communit...05&postcount=1

http://www.vansairforce.com/communit...7&postcount=11

http://www.vansairforce.com/communit...2&postcount=13

http://www.vansairforce.com/communit...9&postcount=15

http://www.vansairforce.com/communit...5&postcount=19
Is this the Mk II air filter design? It doesn't look like the filter setup in your "Frankensnorkel" folder. Photos linked below

https://www.danhorton.net/VAF/Franke...e/PA120002.JPG

https://www.danhorton.net/VAF/Franke...e/PA120003.JPG

https://www.danhorton.net/VAF/Franke...e/PA120005.JPG

Was the pressure drop with the design above unsatisfactory? Why the change? My search of K & N didn't turn up a part number for BD20A4.

Last edited by chaskuss : 08-04-2019 at 12:52 PM. Reason: Deleted last question
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  #18  
Old 08-04-2019, 03:25 PM
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When checked on the flow bench at AFP, the cone filter was too restrictive. Don suggested I try to design something with a deep pleat flat filter. I did, and it flowed very well.
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  #19  
Old 08-05-2019, 12:43 PM
jdmrv7a jdmrv7a is offline
 
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Location: DFW
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I purchased the stock IO390 sold by Van's, and the AvStar that Lycoming recommended in 2018 for the 14A. The Van's RV14 build drawings, photos and firewall foreword parts all fit perfect without mods. After 140 hours, this IO390 with stock Slick Mags is the smoothest running Lycoming I have ever owned.
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  #20  
Old 08-05-2019, 02:29 PM
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DanH DanH is offline
 
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Quote:
Originally Posted by jdmrv7a View Post
I purchased the stock IO390 sold by Van's, and the AvStar that Lycoming recommended in 2018 for the 14A. The Van's RV14 build drawings, photos and firewall foreword parts all fit perfect without mods. After 140 hours, this IO390 with stock Slick Mags is the smoothest running Lycoming I have ever owned.
As always, an RV flies fine with a stock engine choice.
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