Author Topic: Saito CL .72 on a pipe? (Read 669 times)

Rudy Taube · « **on:** February 26, 2008, 11:17:02 PM »

Hi Pete, and other engine guys,

I have one of the .72 CL Saito engines. It is going into a Strega. I would like it to be as quiet as possible, and keep as much of the mess off the plane as I can. I normally fly ECL, but I love 4 strokes and think they are allmost perfect for CL stunt, 2nd only to ECL. ;-)

Other than weight (I'm not worried about several extra oz.), and poor looks, Is there any "downside" to using one of the wrap around headers and a tuned pipe strapped to the bottom of the plane?

I am not looking for more power, I think it will have more than enough, just want it very quiet and clean as possible. ... TIA for any answers on this.

Regards,

Bob Zambelli · « **Reply #1 on:** February 27, 2008, 06:17:22 AM »

Rudy - having the same concern about keeping my Staggerwing (SAITO .56) a bit cleaner, I installed a pipe.

It is a simple length of 3/8 ID thin wall aluminum tubing, connected to the muffler with a piece of silicon tubing and bent down at the rear.

No affect on performance, keeps the plane clean and it leaves a very nice smoke trail.

It would be interesting to see what would happen with a tuned pipe.

Bob Z.

Bob Reeves · « **Reply #2 on:** February 27, 2008, 07:29:27 AM »

Not Pete or have his credentials but if I was thinking about doing something like this I would put the engine on a test stand with the stock muffler, set a reference RPM and measure the head temperature. Then install the pipe and see if it makes any difference.

Harbor Freight sells a point and shoot thermometer pretty cheap.. For compairsons like the above doesn't matter how accurate it might be.

RandySmith · « **Reply #3 on:** February 27, 2008, 08:52:52 AM »

Quote from: Rudy Taube on February 26, 2008, 11:17:02 PM

Hi Pete, and other engine guys,

I have one of the .72 CL Saito engines. It is going into a Strega. I would like it to be as quiet as possible, and keep as much of the mess off the plane as I can. I normally fly ECL, but I love 4 strokes and think they are allmost perfect for CL stunt, 2nd only to ECL. ;-)

Other than weight (I'm not worried about several extra oz.), and poor looks, Is there any "downside" to using one of the wrap around headers and a tuned pipe strapped to the bottom of the plane?

I am not looking for more power, I think it will have more than enough, just want it very quiet and clean as possible. ... TIA for any answers on this.

Regards,

Hi Rudy

People have been running pipes on 4 strokes for years, I have setup many 4 stroke with pipes, You won't hurt anything as long as the pipe is not really restricted. and you will not have a problem accomplishing what your after, Bob's suggestion about checking the temps are a good one too. You do have a laser thermometer don't ya?

Regards
Randy

Randy Powell · « **Reply #4 on:** February 27, 2008, 09:05:39 AM »

Last 4 stroke I used (A Saito 56), I set up a neat system with a megaphone exhaust. Didn't make it quiet, but did seems to smooth the run quite a bit. Shame I kept bending pushrods on the thing.

Mark Scarborough · « **Reply #5 on:** February 27, 2008, 10:48:31 AM »

Rudy,
where do you plug the batteries and speed controler in on your Saito, I have been looking for the jack on my .56, cant find it anywhere

Author Topic: Saito CL .72 on a pipe? (Read 669 times)

Rudy Taube

Saito CL .72 on a pipe?

Bob Zambelli

Re: Saito CL .72 on a pipe?

Bob Reeves

Re: Saito CL .72 on a pipe?

RandySmith

Re: Saito CL .72 on a pipe?

Randy Powell

Re: Saito CL .72 on a pipe?

Mark Scarborough

Re: Saito CL .72 on a pipe?