Saito FG 84 R3 Intake Modification
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- Опубліковано 5 лют 2025
- VIDEO MISTAKE- The prop is not a 23-12. It is a Biela three blade 22-12. The final cylinder temps at idle after the intake mod are 144-145-147. If you would like information on this mod or other RC engine mods contact Ray English at Ray@TTUSA.com. He is retired from Marlin Lindy Cars as one of their engine designers and has been modifying RC aircraft engines now for 15 years. He's the best I have ever seen and a super guy to work with.
5600 RPM (before) to 6240 RPM (after) is actually a 640 RPM increase. Great results!
Hopefully you will be at the field tomorrow i want to see this in person.
Hi Ray, Great video.... The email you list in the info section is missing a "w" and bounces back. Thanks for putting this together ! Joe
Awesome work 👏 👌 ❤
Fantastic sound, one could easily mistake this engine for a Moki Radial :-)
The dog behind the plane enjoys the air draft :D
Well it has been 9yrs. I wonder if saito addressed that issue? I was going to buy a 60cc r3 but after seeing this video I am holding back.
They did address it. They made the corrections and changed it to the FG 90. The 60cc never had the intake problems. You should be good
@@Condor060I did purchase the FG-60R3 early this year 2024. It is not running right. Cylinder 1 runs at around 150F, cylinder 2 and 3 around 110F ??
Tried a mod ed back plate from a guy from the UK I did not help. Do you sell modified plated for the 60cc?
@@1bizjets I would contact Ray (Who is the magician on this motor) Ray@TTWUSA.com 775-771-0824. I never heard of the 60 having these problems.
wonder if the FG-90R3 also needs the induction modification as well??
Comments are certainly welcome guys. Love to know your thoughts about this mod.
I knew about the temperature differences between cylinders on Saito 3-cyl. radials but hadn't quite understood how different it meant the mixtures are. I'd be interested to see an analysis of the Saito 5-cylinder the same way and whether the same improvements can be had. EDIT - sorry but I really couldn't handle the dog gimmick. Had to skip past it, just couldn't deal with it.
*Agreed on the fking mutt. This video is 5 years old, however. Too late.*
Hi Ray. I am from Argentina . I have a Saito R3 60 cc and I would like to do the same modification. what would be the tips to solve it?
Has Saito fixed the FG90 engine ? I think the FG84 was discontinued.
Great job.
How much are these mods?
Thanks
I wonder if the same intake issues are relevant to the smaller Saito radial motors, i have a 3 cyl 90. Now i don't know if i want to run it, having seen this video. I wonder if it has similar cooling and hydro lock issues too...
Do you think an FG-84 r3 (or FG-90 R3) is good for a Phoenix Corsair 60 cc V3?
Its a great engine and flew my 60 size Horizon F4U Corsair flawlessly. Plenty of power and a great sound even on a 3 blade
The reason the engine speed and mid throttle response improved was more so due to the tube insertion which raises intake velocity - the rest could be minimized to possibly unnecessary and/or immeasurable. Hello 'Home Depot' plumbing dept for $10. :)
Wow .. and how do we do that? I have a FG19-R3 and need to fix that .. pleaaase, sir!!
Is there a kit available for the mod , I have a Fg 90 that has the same problem.
Paul
Can i use Saito 60r3 on this corsair? and 60cc have the same problem with diferents temp?
Can I still get this done today?
I just bought a Saito FG84R3 yesterday.
Runs bad. Need help
Sure, Contact Ray English at ray@ttwusa.com. If you don't get a hold of him let me know.
Hallo Fred .. could you reduce the high oil content 1:20 /1:25 in the mix through mounting the bronze bearing on maybe 1:40 ? i mean that the bad original Rod bearing is the only Reason why this Saito requires such much Oil .
No, This engines fuel feed is through the top of the cylinder. It is not through the carb like all other oil mix engines where the crank is bathed with the fuel oil mix before it enters the cylinder. The only oil the crank receives is the unburnt portion through the top of the cylinder. If you lien out the oil the bearing will fail.
Display each part of the Saito FG 84 R3 engine step by step. Please, sir.
Does he still do this work? I say Morris Mini engines sells the their new intake and timing piece so you can adjust timing 360 around. Is that the same as his work?
A W E S O M E !! Congratulations !!
Forgot to mention I tried Ray's email address as provided in this video and it doesnt appear to be working anymore. Maybe he is getting overloaded with emails..........
Hi Fred, Tried to contact Ray English using the email address in the description and it bounses back. Can you assist or advise?
Did you try his number 775-771-0824
The size of each part of the engine with a three-cylinder piston
Nice jobs!!!
Hell yea buddy!
This is a great video. I have the same problem with the 84 R3 I own as well (cylinder temps and bogging in mid range). Does Ray still perform these modifications?
i would say,,,, IF you got the money, honey
this covers more of the bearing mod rather than the intake mod - what was done to the intake?
What model corsair is this engine installed in?
How many flights have You had? Is this still running very good?
I got mine installed and testflighted in a Yak and it is quite ok after long time adjusting but still bad midrange. Will consider this upgrade during winterseason :-)
32 flights and still running strong. This is a great engine once the mods are done. In my humble opinion, you are risking your aircraft on this engine without the mods. Running a gas engine without a bearing on the main rod???? Its just a matter of time before it locks up. Saito should know better.
Fred Culbertson
Hi, Totally agree. I normally use a little motor oil in the crankcase of these Saito engines. I`ve did that on my Saito Fg 57 for 50+ flights and it`s running very good. But I sure will do this upgrade, but first fly this season thru....
Fred Culbertson How do I get in touch with Ray English to talk about these "mods"?
@@Condor060 do you have rays contact details please.
@@stevenunderwood. Sure Steve Ray@TTWUSA.com 775-771-0824
I wish i had a friend like you and live nearby me
My friends might disagree with that statement. lol
Is he selling this mod ?
Temps are in Celsius ?
Which Corsair model is this? Lovely by the way
Hanger 9
2020 Bump .
Saito FG 84 R3 parts assembly and disassembly view .please .sir
Hello my name is Juan Manuel from Argentina. I am the owner of a new saito fg 84r3. I am working in a new project for a Fockewolf top flight and i found your video. I didn't run the engine yet but i think its a great idea first to install a ball bearing in the main crankshaft. Can you tell me please the number of that bearing so as to get it? And second i didn't understand good what do you modify in the intake. Maybe you can give me your e Mail and explain me how to do it.
Thanks a lot and great video!!!!!!
You can contact Ray English at Ray@TTWUSA.com The bearing is not available through any parts distributor. The crank has to be turned down and the rod opened up so the bearing is custom made by Ray.
I believe it is a brass Bushing, not a Ball Bearing.. If it had been a needle bearing, one could decrease the oil content to 32-1....
Not knocking it.... As I would like the same thing done to my 450r !!!
Not enough meat in the main rod to install a needle or ball bearing. Thats why we went with the bearing Ray made. These are not off the shelf fixes. This is all custom work. If you want it done you have to send your engine to Ray for the Mods. He made the bearing and the intake parts himself. He is in the business of making custom engine mods so I don't think you will have any luck getting him to give you his intellectual property information for free.
LOL..... Manuel cracks me up...
Rays contact information: Ray@TTWUSA.com 775-771-0824
Is the dog Deaf??? He was just hang'n.... w.o any issues ...with that prop blast!!!!!
Saito Engines have multiple design failures go with UMS
gotta love a talking poodle dog,,,,, hehehehe,,, ole USN vet
The resolution is so poor - we can't see anything - besides lose the dog comments
great mods. but for the price, should not be needed. good reason not to purchase. thanks for review.
Could do without the dog BS !!
Why would you invite people to comment if you dont intend to support and answer questions ? Strange attitude.