Only a time thing I'd say before Rotax come knocking with cheque book to disolve your company. You are costing them way to much. What a awsome business you have. Love the videos.
I once installed an NSI Subaru EA81 into a Kitfox IV-1600 but the package had two failures: it was heavy ...the gearbox and prop (Warp Drive Three Blade) weighed 33# and the gearbox was prone to failures ... the engine was bulletproof and was producing a ton of power and torque, but the gearbox & prop just made it unusable. I had to put 22# of lead in the far aft tail area to get it into W&B. The Viking 90 set up should be no issue and with a very good power to weight ratio to boot. Out of 12 experimental aircraft I built that was the only auto conversion I did ... now I'm looking into a Rans with the Viking 90 as the engine of choice if I get a RANS. I would like to do an S18 Stinger ... the Viking 90 would make it a Super Stinger ... Venom Stinger??
Why no fray protection for elect cables around edges of the metal conduits. Just curious, but former AF guy I know what vibration does around any metal interfaces over time.
Jan, you look tired, you need ten days of vacation. No airplanes, no engines, no customers.. swim every day, listen to ocean and some quiet music, eat healthy and sleep a lot!
I def want the viking Honda 4 cylinder in my kit fox 7 series when I purchase it I think Hondas reputation plus vikings engineering style is a perfect match 40 grand for a Rotax 40 hp when I can run 180 plus the reliability nothing against Rotax great engines little pricy though !!! that's my dream plane!!!!I hope that won't offend Denny ......cause I love the kit fox 7 series like Trent Palmers!! when he paid about 40 g wow that's too much for me I know its a great engine though but I think the Honda will give it a run for its money!! just my opinion to all the pros out there if I'm wrong say why I'm listening??? thx
Have you ran in to any issues with the oil coolers failing internally and mixing coolant with your engine oil? I've seen this a few times with automotive systems. Typically ford systems I've seen it more often. I would be concerned with cooler failure and coolant washing out your oil mid flight, causing the engine to seize.
How did the turbo on the 90 work out? I would love to instal your 90 engine with the mild turbo on my KF4 instead of going through all the work of converting the Apex by myself. Please let me know if it may be a possibility in the near future.
Hey Russ - still continued testing, everything is perfect so far and as expected, with turbocharging we want to be extra cautious about longevity, we can get the power, but we want reliability. Turbocharging is easy, reliability is key.
What is the Crankshaft RPM at cruise and full throttle? What brand of Engine do YOU start with? I've been bit by the bug and am trying to identify the best way to get a KitFox and me in the air.
Hello, we have an all up weight video on our 90 on our CZcams already. It is the exact same installed weight of a 912 - which if memory serves correct around 192 lbs, all up.
Only a time thing I'd say before Rotax come knocking with cheque book to disolve your company. You are costing them way to much. What a awsome business you have. Love the videos.
Looks like a really nice setup!
Thanks, excited to see it fly!
I once installed an NSI Subaru EA81 into a Kitfox IV-1600 but the package had two failures: it was heavy ...the gearbox and prop (Warp Drive Three Blade) weighed 33# and the gearbox was prone to failures ... the engine was bulletproof and was producing a ton of power and torque, but the gearbox & prop just made it unusable. I had to put 22# of lead in the far aft tail area to get it into W&B. The Viking 90 set up should be no issue and with a very good power to weight ratio to boot. Out of 12 experimental aircraft I built that was the only auto conversion I did ... now I'm looking into a Rans with the Viking 90 as the engine of choice if I get a RANS. I would like to do an S18 Stinger ... the Viking 90 would make it a Super Stinger ... Venom Stinger??
Just in time for my K4 rebuild. Nice.
Why no fray protection for elect cables around edges of the metal conduits. Just curious, but former AF guy I know what vibration does around any metal interfaces over time.
Very cool. You can pick up old Avid 4 for 10k or less flying. I will have to look into this
Nice work! Pretty tight install.
Jan, you look tired, you need ten days of vacation. No airplanes, no engines, no customers.. swim every day, listen to ocean and some quiet music, eat healthy and sleep a lot!
Can you tell me the weight of the engine and the estimated useful load your expecting for this kf4?
Duc props are nice, what Flash models are you using w your engines?
Almost exactly what I want. But i want the 150 turbo.
Not bad for 10 k ...+firewall
I def want the viking Honda 4 cylinder in my kit fox 7 series when I purchase it I think Hondas reputation plus vikings engineering style is a perfect match 40 grand for a Rotax 40 hp when I can run 180 plus the reliability nothing against Rotax great engines little pricy though !!! that's my dream plane!!!!I hope that won't offend Denny ......cause I love the kit fox 7 series like Trent Palmers!! when he paid about 40 g wow that's too much for me I know its a great engine though but I think the Honda will give it a run for its money!! just my opinion to all the pros out there if I'm wrong say why I'm listening??? thx
Have you ran in to any issues with the oil coolers failing internally and mixing coolant with your engine oil? I've seen this a few times with automotive systems. Typically ford systems I've seen it more often. I would be concerned with cooler failure and coolant washing out your oil mid flight, causing the engine to seize.
Dream to built 750SD w/ viking 190 t
Remember the early aircraft were powered by auto engines ....
How did the turbo on the 90 work out? I would love to instal your 90 engine with the mild turbo on my KF4 instead of going through all the work of converting the Apex by myself. Please let me know if it may be a possibility in the near future.
Hey Russ - still continued testing, everything is perfect so far and as expected, with turbocharging we want to be extra cautious about longevity, we can get the power, but we want reliability. Turbocharging is easy, reliability is key.
Thanks for sharing!
Yes I want on for my kf3
Do you or are you going to look at installations for the 130 in older kitfox or avid?
The 90 HP is great for the Kitfox 4 and older and the 130 is good for the larger models. We have done both.
What is the Crankshaft RPM at cruise and full throttle? What brand of Engine do YOU start with? I've been bit by the bug and am trying to identify the best way to get a KitFox and me in the air.
All of our gears throughout all engines are the same 2.33/1 ratio - The 90 HP comes from a 2019 Mitsubishi Mirage
Dream Build for me
Just Highlander Steve Henry mods
Viking 170/180/190T
31” ABW 👍🏻😍😊
Oh ya!
Wouldn't be too hard to drill down into the concrete outside and install 2 large anchors to tie down any airplane that wants to do a run up
Where can we follow the progress of this kitfox?
On our channel :)
Can you post installed weight? It looks kind of heavy.
Hello, we have an all up weight video on our 90 on our CZcams already. It is the exact same installed weight of a 912 - which if memory serves correct around 192 lbs, all up.
Can I buy just piece parts ??
We sell a whole kit? The engine is sold as one, the rest is up to you, but all available through us.
Hope you show it when it is done!
Of course, they will have many videos to share as well.
Waaay too many connections to be reliable. You have created so many leak possibilities it's scary.
We have been doing this a very long time, I assure you if you are clamping and doing your connections properly there should not be an issue.