rcnitrohead

Forgive me everyone I've searched on this topic and come up with nothing. Sorry if this is a stupid question, but how does the Saito 56 right angle adapter mount up? Here is a link to it:

http://www.horizonhobby.com/Products...ID=SAI100TI140

What I don't get is that it has one external threaded mount point, but the other is internal. Which means that the muffler must thread into the adapter?

I need a muffler setup that is as slim and close to the engine as possible, this is going into a 1/8 scale car (for realism) which means it must be hidden and not take up too much space. I have a used Saito 56 GK which I bought a few months ago and have not started yet, but looks to be in great shape internally and externally. It came with this muffler:

http://www.horizonhobby.com/Products...rodID=SAI5074C

That is too big and bulky with a bad angle for my application, so I want to use the 90 degree elbow with the original Saito 56 muffler (for the regular version)-

http://www.horizonhobby.com/Products...rodID=SAI5074B

I'm starting to assume that to connect this muffler with the right angle elbow, I need to use this part? (Which I have already from the GK version)-

http://www.horizonhobby.com/Products...rodID=SAI5075B

Sorry for the confusing post, but maybe a seasoned guy could help me out as this is the first 4-stroke engine I've owned and this project has already taken a financial toll on me, I can't afford any mistakes. I appreciate any help guys!

Tom.

w8ye

My Feedback: (16)

You are all correct so far

There are also 30 degree and 15 degree threaded pipes

kingranch

My Feedback: (2)

The right angle adapter is to be used with a lighter muffler than the original, which is too heavy and will break the adapter inside the engine. Go to Horizon, look under Saito and choose a lighter or flexible muffler that will fit your application. Ask me how I know this. I am using 4 Saitos on different planes and had a similar issue with a cowl. Wound up using a flex muffler without the 90 degree adapter.

Been there - Done that.

w8ye

My Feedback: (16)

These will work with the Saito right angle adapter

http://www.horizonhobby.com/Products...dID=SAI100TI73
http://www.horizonhobby.com/Products...rodID=SAI90T73
http://www.horizonhobby.com/Products...dID=SAI100TI74

w8ye

My Feedback: (16)

These work well and sound great. I have one on a Saito 56 and he also has right angle adapters

http://www.rcuniverse.com/market/item.cfm?itemId=483717

w8ye

My Feedback: (16)

There are also these. Your 56 is 10 X 1 mm

http://www.macspro.com/four_parts.asp

rcnitrohead

Wow that is pretty surprising that the regular Saito 56 10mm muffler can't be used with the adapter? The exhausts are pretty light, I'd assume it should be fine with some bracing? I'd rather not use pipes that don't have a nipple to give the engine backpressure. The exhaust on this car will be very long, about a 16 inch extension after the stock muffler. That turbo muffler looks great, but is out of my price range.

To give you an idea on how I'll mount it, I'm planning for it to be mounted in parallel with the ground (90 degree angle) with the exhaust pointing downwards. I'm hoping this long extension won't choke the engine up too much, it will have a diameter just a tiny bit larger than the stock muffler stinger and will split off into a dual exhaust right at the stock muffler exit, I think that should be enough to get all the exhaust out without choking the engine up eh?

Honestly if I could mate the regular slim 56 muffler to the adapter I'd be golden, but if you guys say it won't work (even with some bracing); then I guess I might have to look at other options.

Thanks for all of your insight all,

Tom.

w8ye

My Feedback: (16)

The machined muffler or the all thread pipe don't weigh very much

Four strokes are noit sensitive to exhaust extensions like two strokes are.

You Saito 56 will run fine without muffler pressure in a car.

rcnitrohead

The weight of the whole setup doesn't concern me as the whole vehicle will be quite heavy anyway, I was just double checking with regard to kingranch's claim that the Saito adapter would break while using this muffler with it:

http://www.horizonhobby.com/Products...rodID=SAI5074B

What I am concerned with is noise, from my research I've gathered that the sound output it similar to glow 2-strokes but it is deeper and carries farther away. I've read that straight pipe setups are considerably louder than the stock mufflers. I'm planning on using aluminum tubing (don't know the specific dimensions yet) with an extension of anywhere from 15-18" after stock. Hopefully I can manipulate it to reduce noise through means of insulation/baffles or something else, but my first goal is to get the parts that will fit in the chassis I'll be building and finally start this sucker up[sm=thumbup.gif].

I'm going to need all the backpressure I can get cause I'm planning on having the fuel tank in the rear of the car and the engine is obviously in the front- thats close to or just under 20 inches of fuel line to reach the carb. I'll look more into fuel pumps to see if they will work for my application. The main goal is for this engine to be started on board from the radio, but I'll figure that out a little later when I get more parts and start the actual building.

Thanks for everything, I really appreciate it.

w8ye

My Feedback: (16)

This pump works from vibration of the engine
http://www3.towerhobbies.com/cgi-bin...&I=LXDG63&P=ML

rcnitrohead

Thanks a lot for all of the help man, nothing but respect [sm=thumbup.gif]

w8ye

My Feedback: (16)

If you are going to put that much pipe on the exhaust it will be quiet enough without any baffles or special tricks

rcnitrohead

H'mm I'm not 100% sure about that. About 6 years ago getting into the hobby, I bought a dual exhaust for my T-maxx which was one of those cheap POS copper plumbing pipes put together to make an exhaust. Well, that sucker was LOUD. The sound was amplified at least 2X and was much deeper, I guess it was because of the wall thickness of the copper pipe (was about 2mm thick) that added to the amplified sound? I'll probably be using thin walled aluminum, but I guess I won't know till I get everything together.

Tom.

w8ye

My Feedback: (16)

4 strokes are a lot different from 2 strokes