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Old 02-21-2015, 06:43 AM
  #28751  
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Originally Posted by acdii
Wonder if you can find 1/4" gas line and use that instead, all you would need then is a fitting.
When I replaced my gas stove, I saved some of the corrugated flexible pipe that looked a lot like the Saito flex pipe. However, the fittings were different (of course) and the pipe, which was stainless steel, was coated with a yellow plastic. I don't have welding equip. or I would have tried to fit some metric Saito fittings. My guess the yellow plastic would just have burned off. But, I have heard that the Saito flex pipes do not make the engines run better, perhaps the opposite.
Sincerely, Richard
Club Saito #635; Saito 56, 100, 120abc, 130T, 180
Old 02-21-2015, 07:25 AM
  #28752  
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I think they are more for enclosing the exhaust in the cowl than for anything else.
Old 02-21-2015, 07:31 AM
  #28753  
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Originally Posted by spaceworm
When I replaced my gas stove, I saved some of the corrugated flexible pipe that looked a lot like the Saito flex pipe. However, the fittings were different (of course) and the pipe, which was stainless steel, was coated with a yellow plastic. I don't have welding equip. or I would have tried to fit some metric Saito fittings. My guess the yellow plastic would just have burned off. But, I have heard that the Saito flex pipes do not make the engines run better, perhaps the opposite.
Sincerely, Richard
Club Saito #635; Saito 56, 100, 120abc, 130T, 180
I'm just trying to get the muffler out of the cowl with out cutting up the cowl.
Old 02-21-2015, 08:48 AM
  #28754  
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Originally Posted by slamn sammy
I'm just trying to get the muffler out of the cowl with out cutting up the cowl.
Have you looked at Turboheaders?

Sincerely, Richard
Old 02-21-2015, 09:04 AM
  #28755  
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Originally Posted by spaceworm
Have you looked at Turboheaders?

Sincerely, Richard
I will. Thank You
Old 02-21-2015, 09:14 AM
  #28756  
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[QUOTE=slamn sammy;11987586 News just show'ed where a F-16 with a (Student Pilot) landed his plane with one wing missing? Thought only Bill Hempell could do that. I would of never took off in the first place. DEE,DEE,DEE. LOL Think l need more coffee.[/QUOTE]

Sammy check out this vid of a f15 landing with just one wing
https://www.youtube.com/watch?v=M359poNjvVA Ken

Always need more coffee. Dang drugs for the nerve pain knock me out big time
Old 02-21-2015, 09:36 AM
  #28757  
SrTelemaster150
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Originally Posted by slamn sammy
I'm just trying to get the muffler out of the cowl with out cutting up the cowl.
90 adaptors W/the stock muffler/header pipe sometimes allow that.
Old 02-21-2015, 09:39 AM
  #28758  
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Speaking from experience, if the end of the flex pipe is unsupported for more than about 1 X the diameter, it will soon self-trim to length.

It usually takes 2 support brackets to stabilizethe flex pipes suffeciently.
Old 02-21-2015, 10:47 AM
  #28759  
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Dan, I had two of the Saito flex pipes on my TS .90 and it sounded awful, it sounded too tractor like or lawnmower like. two Saito cast mufflers sounded better and two TurboHeaders even better.
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Last edited by Hobbsy; 02-21-2015 at 11:02 AM. Reason: Add pictures
Old 02-21-2015, 01:46 PM
  #28760  
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I owned a hobby shop for years and sold more Saito's than Os four strokes. My favorite is the 300 twins single and dual carb's. Sound and power is amazing and will take a 15/18 lb straight up outa sight.
Old 02-21-2015, 02:58 PM
  #28761  
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Originally Posted by slopoke
I know a guy with a heli he had just been working on. He spread some newspapers on the dining room floor to catch the possible oil spill...
I know friends who do that kinda thing with their Harleys.

I woke up one morning in my younger years after a heavy session on the whoopee-juice, and the one eye that forced itself open was staring straight at the front wheel of a Hog. I can still remember thinking "oh... my... God... where the hell am I??" Can't recall having seen it before I bunkered-down on the couch

BJ
Old 02-21-2015, 03:06 PM
  #28762  
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Where you been, Harley's haven't leaked anything since about 1983 when the employees got rid of AMF.

I installed a velocity stack on my plain Jane .62 today. Too cold to try it out though.
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Old 02-21-2015, 04:30 PM
  #28763  
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Originally Posted by Hobbsy
Where you been, Harley's haven't leaked anything since about 1983 when the employees got rid of AMF.

I installed a velocity stack on my plain Jane .62 today. Too cold to try it out though.
Hi Dave, thanks for reminding me about the 1000 cc AMF Sportster I had for a short time. I could hardly keep it running just for a ride around the block. A road trip was out of the question.

I recently got a low time .56. Did the .62 evolve from it or was the .62 a new design? Thanks.

Best regards, Richard
Old 02-21-2015, 05:48 PM
  #28764  
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Originally Posted by Hobbsy
Where you been, Harley's haven't leaked anything since about 1983 when the employees got rid of AMF...
Not so sure about that - my '97 FLSTC still weeps a bit around the crankcase cover plate...

What's the 'velocity stack' do?

BJ
Old 02-22-2015, 04:02 AM
  #28765  
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BJ i'm no harley fan i work on them quite a lot and have never been keen on them,but then i ride ducati and lots of people don't like them either.Yamabond would seal up leaky triumphs and norton roadsters it was that good.

I don't think the velocity stack is visible in hobbsys pix but at least it's in focus.Dave they sound tractor like with a saito flex pipe on do they,i thought that would have been to your liking
Old 02-22-2015, 04:36 AM
  #28766  
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Gimme a double-thumper any day.

Though (don't let this get out, hey) I do like the sound of a big Honda VFR... (ok, and a Djewk too)

BJ
Old 02-22-2015, 05:11 AM
  #28767  
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That picture is pre-velocity stack, I just mounted the stack yesterday. I ordered two while Horizon had them in stock. I've gotten so that when I need Saito things I order two of everything while they gottem.

Here is a shot of the newer .62b model.
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Last edited by Hobbsy; 02-22-2015 at 05:29 AM.
Old 02-22-2015, 09:49 AM
  #28768  
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The only one I currently have is a 115. Ive had the 100, 180, and 220. the 115 has 2 short flights on it and is going in my 4star 60 kit im building. I can definitely tell it has more power than the 100
Old 02-23-2015, 05:08 AM
  #28769  
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Originally Posted by Hobbsy
Dan, I had two of the Saito flex pipes on my TS .90 and it sounded awful, it sounded too tractor like or lawnmower like. two Saito cast mufflers sounded better and two TurboHeaders even better.
I think my dual carb 300T sounds OK W/the stock flex pipes. $150 for 2 Turboheaders is a bit salty for my taste. Note the extra support bracket at the ends as well as the standard OEM bracket.

https://www.youtube.com/watch?v=vdmLu13UJzs You can see the auxiliary bracket at the ends of the pipes at 2:30 & again at 5:50. The bottom of the test stand is a duplicate of the motor mount box on my 1/3 scale SIG Spacewalker. The flex pipes make for a very tidy installation W/the exhaust exiting in a scale like manner. Given the airframe that it is going to be installed into, it has ample power.

Here are some PIX of the auxiliary bracket. It is made from fuel line clamps W/K&S brass bar stock.Also note then crankcase breather exit next to the exhaust pipe. The velocity of the escaping gasses scavenges the oil into the exhaust stream.





Originally Posted by Gene Fisher
I owned a hobby shop for years and sold more Saito's than Os four strokes. My favorite is the 300 twins single and dual carb's. Sound and power is amazing and will take a 15/18 lb straight up outa sight.
The 1/3 scale Spacewalker should come in around 20#-22# so vertical performance should still be impressive W/the FA-300TTDP twin. I am forgoing the dummy engine as the heads & about 1/2 of the carburetors/velocity stacks will be protruding from the cowl on each side. Why have a dummy engine when you can have real engine components showing?


Last edited by SrTelemaster150; 02-23-2015 at 05:27 AM.
Old 02-23-2015, 06:32 AM
  #28770  
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Why have a dummy engine when you can have real engine components showing?
This is why I wanted a Twin for my Cub. With the Saito 100 sticking out the cowl, it looks really good, then there is that dummy engine on the other side.
Old 02-23-2015, 07:46 AM
  #28771  
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BJ, as the intake charge moves toward the intake valve and into the cylinder it has momentum, when the intake valve closes this causes the intake charge to stop suddenly and it compresses slightly then bounces back toward the carb spraying fuel all over the inside of the cowl and firewall. The velocity stack reduces this considerably and increases fuel economy. The little 30 and the FA .40a have the velocity stack cast as part of the carb body.
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Old 02-23-2015, 08:32 AM
  #28772  
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Originally Posted by acdii
This is why I wanted a Twin for my Cub. With the Saito 100 sticking out the cowl, it looks really good, then there is that dummy engine on the other side.
I mounted my FA-91s inverted. The tips of the rocker cover are all that protrudes. I have one of the Top-Notch scale A-65 Continentals dummy engines for it.

Old 02-23-2015, 09:05 AM
  #28773  
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I wanted to invert it, but I had already completed the build when I decided to put the 100 on it. I would have had to tear the nose apart inside to relocate the tank floor so I could route the throttle cable, as well as plug and redrill the mounts. Decided it wasn't worth it. During the build of my second Cub, the Biper, I thought about inverting the OS 70, but decided against it since I might find a twin for it down the road when I can afford one. Maybe one of these. http://www.macgregor.co.uk/saito/FA-100T.htm
Old 02-23-2015, 09:52 AM
  #28774  
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Originally Posted by acdii
I wanted to invert it, but I had already completed the build when I decided to put the 100 on it. I would have had to tear the nose apart inside to relocate the tank floor so I could route the throttle cable, as well as plug and redrill the mounts. Decided it wasn't worth it. During the build of my second Cub, the Biper, I thought about inverting the OS 70, but decided against it since I might find a twin for it down the road when I can afford one. Maybe one of these. http://www.macgregor.co.uk/saito/FA-100T.htm
The FA-100 is also quite a bit taller than either the FA-91S or FA-115.

The FA-100T is also AVAILABLE HERE.
Old 02-24-2015, 03:26 AM
  #28775  
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[QUOTE=Hobbsy;11989039../The velocity stack reduces this considerably and increases fuel economy...[/QUOTE]

Ahhh... to supply backpressure to the inlet?

A bit like how an expansion chamber works on a 2-banger... (except you're not using the reflected exhaust pulse) ?

BJ

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