i have an o200 im puting toger for my Rutan Verieze and this helps in case i want to improve the HP. where are you based? by the way i need few parts if you have them.
I run a c85 stroker. The 1946 c140 had straight pipes also.not as long as the vetterman, but I still would like to see some before and after dyno numbers on that motor
Nice! That C85 is an awesome STOL engine for turning a long prop. I should add the dyno report chart to the video. Was recently on a dyno. The report showed 130 HP at 2828 RPM and it was still putting out as much as 125 HP all the way down at 2400 I believe. Pretty good for an O-200!!
Does the 0-200 have the step between carb and manifold? The A65 has a 42mm carb, the manifold is 45mm for 8mm and then steps down to 38mm… not sure why as it seems messy. I know 0-320s with an 0-360 sump had to have a cone installed to stop rough running.
The venturi is different and the jets, I heard the c85, c85, c90, and o-200 have different venturi and jet combinations to allow for the rpm changes to produce the power...
Did the vetterman come without the mufflers or did you remove them yourself? Just looking on their website and the pictures look like they have them installed.
@@johnkluenker and you flew it when the engine developed 120 hp? You can’t use the same prop on both a 120hp and a 150hp engine. It will either be too much load at high power or not enough at low power
Since I fly out of Northern California, I realized that I almost never turned on cabin heat. And I can always dress for the cold. As far as the sound, I love that with the O-200 it has more of a hot rod sound versus the Rotax. It’s fun to let it sing!
@@johnkluenker I live on the Central Coast of CA and I frequently use the cabin heat in my Mooney in the fall, winter and spring. The sound issue isn't about quality but volume; I'm 68 and I have already lost some hearing. I want to keep what I have left.
Good call! Fortunately I use noise-canceling headsets that helps lot. Without them it would definitely be muffler time!! Which airport do you fly out of?
At the time of the video I had not gotten it on the dyno yet. Since then, it has been on the dyno and is putting out 97 hp at 2415 RPM, 126 hp at 2785 RPM, and 130 hp at 2828 RPM. Pretty impressive for a little O-200! maybe I will release a new version of the video with a screenshot of the dyno report.
Hahaha tell me you got smoked for over stated power gains.... rofl. Non mechanical/engine gurus should stick in their lanes you didnt gain 30 hpw. NO WAY YOU ADDED 30 HPW TO A 90 HPW AIRCOOL C0200
Sounds Awesome!!
WOW - FANTASTIC ! Thank you for sharing . . ! :)))
Thank you!
great video. thank you.
i have an o200 im puting toger for my Rutan Verieze and this helps in case i want to improve the HP. where are you based? by the way i need few parts if you have them.
Terrific video, thanks for sharing! How long are the pipes? I'm looking to replicate that on my Varieze.
You will love the DUC!
I do! The DUC is great!
Reno Formula One Class, not Sport Class, but awesome mods and video.Totally jelly!
Thank you! Ha ha I realized that right after I posted it. Oops!
Are any of those mods legal on a certified Piper PA 11?
Wait, you found corrosion on the bottom end so.... You changed the cylinders?????
I run a c85 stroker. The 1946 c140 had straight pipes also.not as long as the vetterman, but I still would like to see some before and after dyno numbers on that motor
Nice! That C85 is an awesome STOL engine for turning a long prop. I should add the dyno report chart to the video. Was recently on a dyno. The report showed 130 HP at 2828 RPM and it was still putting out as much as 125 HP all the way down at 2400 I believe. Pretty good for an O-200!!
Does the 0-200 have the step between carb and manifold? The A65 has a 42mm carb, the manifold is 45mm for 8mm and then steps down to 38mm… not sure why as it seems messy. I know 0-320s with an 0-360 sump had to have a cone installed to stop rough running.
The venturi is different and the jets, I heard the c85, c85, c90, and o-200 have different venturi and jet combinations to allow for the rpm changes to produce the power...
Did you stay with the stock cam?
Did the vetterman come without the mufflers or did you remove them yourself? Just looking on their website and the pictures look like they have them installed.
You can order the exhaust with the mufflers, but I went with straight pipes. Mufflers rob power and the straight pipes sound awesome! 😆
Did you sell those pistons? I know its a year later lol. Just picked up a 601 with the o-200
Believe it or not, I still have them. Let me confirm that. Can you shoot me an email at john.kluenker@gmail.com?
Increase fuel flow? I assume so?
What will you do about carb heat or cabin heat/defrost? ?
Both of those come with the Vetterman Exhaust. They are shrouds that go around the pipes.
Did you have an oil cooler before the overhaul? If not, did you have to install one after?
I did have an oil cooler before the overhaul. You need that with the high compression pistons.
Great video!!! 30HP same wieght for 3K, what about fuel consumption?
Thank you! Fuel burn does tick up a bit but the extra power is worth it for me!
If Vetterman could only figure out an exhaust that would fit in the Varieze cowling!
putting together one for my verieze
What is the latest results of these changes?
The results were good and definitely noticeable. Didn’t put the engine on a dyno though.
Doesn't higher compression reduce the life of the engine?
It can. I just went with 9:1 compression. Some guys go all the way up to 10:1.
Did this require a prop change to absorb the extra power?
No. The prop that I have is rated for 150 hp. 👍🏻
@@johnkluenker and you flew it when the engine developed 120 hp? You can’t use the same prop on both a 120hp and a 150hp engine. It will either be too much load at high power or not enough at low power
if it spin it faster it'll put all the power down.@@sblack48
You would have to spin it at a much higher rpm.
It’s a quick-adjust ground adjustable prop, so I can decrease the pitch to have the engine wind up to a higher RPM.
I'll take the pistons
I like everything you said, until you got to eliminating mufflers and potential cabin heating. I don't like to be noisy and cold.
Since I fly out of Northern California, I realized that I almost never turned on cabin heat. And I can always dress for the cold. As far as the sound, I love that with the O-200 it has more of a hot rod sound versus the Rotax. It’s fun to let it sing!
@@johnkluenker I live on the Central Coast of CA and I frequently use the cabin heat in my Mooney in the fall, winter and spring. The sound issue isn't about quality but volume; I'm 68 and I have already lost some hearing. I want to keep what I have left.
Good call! Fortunately I use noise-canceling headsets that helps lot. Without them it would definitely be muffler time!! Which airport do you fly out of?
@@johnkluenker KSBP
You havent got it. Crossover exhaust is better because it re arranged the exhaust impulses more even interwals sort of.
Thanks for the updated info. I’m not a mechanic and I’m sure it shows! 😉
I’m guessing exhaust, let’s see if I’m right
I was partially right lol
Of course you have a dyno chart to show these mad gainz? No? Then you really need to realize that no, you didn't add 30%
Aww, give the guy a break... you just ruined a good story
Lol! No way did he add 30%. It doesn’t work like that. My dyno shows 5-8 hp gains.
@@jasonmoyers7236 Thanks for the reality check.
At the time of the video I had not gotten it on the dyno yet. Since then, it has been on the dyno and is putting out 97 hp at 2415 RPM, 126 hp at 2785 RPM, and 130 hp at 2828 RPM. Pretty impressive for a little O-200! maybe I will release a new version of the video with a screenshot of the dyno report.
Hahaha tell me you got smoked for over stated power gains.... rofl. Non mechanical/engine gurus should stick in their lanes you didnt gain 30 hpw. NO WAY YOU ADDED 30 HPW TO A 90 HPW AIRCOOL C0200
Superior? Ain’t they the ones with all kinds AD’s
Dont you have to be an A&P mechanic to do all these mods? Definitely going to be more that $3000 if you have to pay someone to do it.
Since my aircraft is experimental, I can do that work myself. Regardless, I have an A&P that double checks my work.