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RE: Welcome to Club SAITO ! - 9/28/2005 9:18 PM  1 votes
William Robison



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Status: offline 		The FA-72 was the first of the mid block Saito engines to get the really hot valve timing. In the big block it was the FA-120S about 1997-1998.

With these hot cams the idle is cobby, they wont idle the way the older engines with milder cams would. There is no increase in the red line rpm, they just swing more prop at the same rpm.

The only cams currently supplied by Horizon are these wild ones, so as you wear the lobes down and replace the cams all the engines will have the same higher idle.

I am hoarding my milder cams, for me the older cams gave enough power.

Bill.

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RE: Welcome to Club SAITO ! - 9/28/2005 9:49 PM   
freeonthree



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Status: offline 		I wonder if retarding the cam timing a tooth would help ??? How did you find out about the hotter cams ??? Will a 65 cam fit a 72 ???

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RE: Welcome to Club SAITO ! - 9/28/2005 9:58 PM  1 votes
William Robison



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Status: offline 		Dennis:

The engine will run with the cam one tooth retarded, but it doesn't have any power that way.

Yes, the FA-65 cam will fit in the FA-72 but again, a major power loss if the 65 is the early one.

If you want to try it, switch the entire cam box assembly, that way you wont have four tappets to worry about mixing up.

Then you can, if you put the 72 cam in the 65, shock everyone with the really hot FA-65.

Bill.

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RE: Welcome to Club SAITO ! - 9/28/2005 10:03 PM   
freeonthree



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Status: offline 		OK, I will admitt, the 72's do run awfully good. My little Super Stearman 40 hauls astroids !!! I feel better now knowing the answer. Where did you find all this cool info ??? Dennis

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RE: Welcome to Club SAITO ! - 9/28/2005 10:46 PM  1 votes
Hobbsy



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Status: online 		He plagiarizes my posts.

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RE: Welcome to Club SAITO ! - 9/28/2005 10:48 PM   
bigtroutdog


 

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Status: offline 		Who makes a pitts muffler for a saito 100?
Part # and who sells it.
Thanks

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RE: Welcome to Club SAITO ! - 9/28/2005 10:51 PM   
freeonthree



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Status: offline 		Hobbsy, where did you get the info then ???

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RE: Welcome to Club SAITO ! - 9/28/2005 11:02 PM  1 votes
Hobbsy



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Status: online 		Dennis, I was just "greenin" Bill as Jethro Bodine from the Beverly HillBillies would say. He is the undisputed Saito guru, he even taught me how to say it. Sightow

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RE: Welcome to Club SAITO ! - 9/28/2005 11:10 PM  1 votes
William Robison



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Status: offline 		Dennis:

I probably repair more Saito engines in a year than most people will own in their entire lives. With this experience, mixing and matching parts, and perusing replacement parts lists, the information just comes naturally.

I'm happy to share it.

Bill.

PS: Hobbsy and W8YE Jim are also good sources. wr.

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RE: Welcome to Club SAITO ! - 9/28/2005 11:13 PM  1 votes
William Robison



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Status: offline 		The correct pronunciation of the name is "Sah-ee-toe." When spoken normally it does sound like "Sigh-Toe."

"Say-Toe" is just WRONG. But it's common.

Bill.

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RE: Welcome to Club SAITO ! - 9/28/2005 11:20 PM  1 votes
William Robison



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Status: offline 		BRDog:

Performance Specialties has exhaust parts for the mid block Saito engines, but the items I've checked are about four times the price of the similar parts from Horizon.

I'll leave the part number search to you.

Keeleo Creations will build one to your specification.

Bill.

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RE: Welcome to Club SAITO ! - 9/28/2005 11:31 PM   
freeonthree



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Status: offline 		Well, I call em Saito "saydough" LOL they run great, and their less filling too !!! LMAO

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RE: Welcome to Club SAITO ! - 9/28/2005 11:47 PM   
iaclmac


 

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Status: offline 		WITH ALL THESE SAITO ENGINES BEING LISTED, WHY DON'T I SEE ANY 100Ti "v" TWINS?????

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RE: Welcome to Club SAITO ! - 9/29/2005 12:57 AM   
Rv7garage


 

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Status: offline 		WR- I can only aspire to be as all-knowing as you! So I figured I'd bounce this one off'n ya.

I am really starting to appreciate what a powerhouse my FA82a is (I LOVE IT), but one thing I really like about the new O.S. 91 Surpass that I have is how it routes the waste oil from the crank breather back to the intake manifold. Would this be feasible for my 82?

On a more basic level, what benefits are realised from this kind of setup, other than the lack of mess?

Thanks!

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RE: Welcome to Club SAITO ! - 9/29/2005 1:06 AM   
NM2K


 

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Status: offline 		You nailed it. It is the lack of mess.

There would have to be a performance drop, but it is probably so small it is immeasurable. I'm guessing, of course.

I like being able to see the oil that comes out of the crankcase. I check it to see that all is okay. Or, I should say, when all is not okay.

Ed Cregger


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RE: Welcome to Club SAITO ! - 9/29/2005 1:12 AM   
IronCross



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Status: offline 		Makes it real hard to put after run oil in it too if the engine is cowled in... I usually end up blocking it off on the Mags and run the vent out the bottom of the plane... I have read you can pull the glo plug and put oil down the cylinder and it will seep into the crankcase but I hate pulling the plug anymore then I have to also.. To much chance of crossthreading etc...

< Message edited by IronCross -- 9/29/2005 1:18 AM >

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RE: Welcome to Club SAITO ! - 9/29/2005 1:22 AM  1 votes
William Robison



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Status: offline 		Flycfii:

First, some back ground. The Japs have much tighter emission controls on engines, and they are influencing some Jap manufacturers of model engines. In this country the Eco-Nazis are trying to get all piston engines covered by federal regulations. In California where most of the nuts are already out of the wood work, the CARB has mandated emission standards on lawn equipment - that's why you buy weed eaters there with four stroke engines now.

The case vent going back to the intake is very close to the Positive Crankcase Ventilation on our cars, differing in that auto engine have valving to ensure a constant flow through the case into the intake over and above the amount of piston ring leakage. The model 4s engine vented this way would have only the ring loss to flow back into the engine's intake.

It does have the advantage of catching the oil that would otherwise go onto the plane or the ground, but if you're running a castor blend (as you should be) I really think there's about as much going out the exhaust as out the vent.

The disadvantage is the volume of air from the case will displace an equal or greater (because of temperature expansion) amount of fresh air being taken in, leaving less free oxygen, and not being able to burn as much fuel. This leads of course, to lower power available.

I think it is worth an experiment. Set your Saito up with the recirculation and see how much difference it makes. At the same time, to be fair, plug the recirculation on your OS and see how much power it gains. In both cases you'll have to reset the mixture.

Let us know your results.

Bill.

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RE: Welcome to Club SAITO ! - 9/29/2005 2:13 AM   
Rv7garage


 

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Status: offline 		Well now, I didn't say I was actually going to do it... Maybe I will try disabling the O.S. system first, and go from there.

BTW- emissions control on something that displaces less than a cubic inch??? Sounds like some people are trying to justify their existence. In other words, GET A REAL JOB!!! Sheesh.

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RE: Welcome to Club SAITO ! - 9/29/2005 2:27 AM  1 votes
William Robison



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Status: offline 		FlCf:

I kid you not. The Eco-Nazis are trying. If they get their way it will be the end of all two-stroke sales nationwide as has already happened on the wrong (left) coast. We may be allowed to run the ones we already have, but even there with the Eco-freaks there's no guarantee.

Who said it had to make sense? The politicos listen to the loudest yells and screams.

Bill.

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RE: Welcome to Club SAITO ! - 9/29/2005 2:52 AM   
Meesh



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CHECK PoST# 254. I listed both the 100 and 200 V-TWINS (iNLINE)

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RE: Welcome to Club SAITO ! - 9/29/2005 4:46 AM  1 votes
Hobbsy



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Status: online 		Back to RC please.

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RE: Welcome to Club SAITO ! - 9/29/2005 5:00 AM  1 votes
William Robison



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Status: offline 		Dave:

quote:

ORIGINAL: hobbsy
Back to RC please.

This off-topic is really related, in that if Dianne Feinstein and the other cruds like her get their wishes it won't be just the two stroke engines, all our four strokes that mix oil in the fuel will be affected. And outlawed. We will have to have engines with a separate lube oil supply.

Some engines could be modified by installing new pistons with oil control rings and adding an oil sump with some way of slinging the oil. Engines that use the crankcase as a pump, that is all two stroke engines and the YS four strokes, could not be made to comply.

So while this digression isn't particularly related to Saito as such, it has a direct bearing on all piston engined powered modeling. And the turbines too, since our model turbines also have their lube in the fuel.

Bill.


< Message edited by William Robison -- 9/29/2005 5:01 AM >

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RE: Welcome to Club SAITO ! - 9/29/2005 5:26 AM  1 votes
Hobbsy



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Status: online 		It's a wee bit of a stretch but I am not unreasonable, especially when it comes to protecting our engines from unreasonable laws.

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RE: Welcome to Club SAITO ! - 9/29/2005 7:36 AM   
freeonthree



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Status: offline 		Just got back from another sucessful nite of flying. The 72 seems to be getting better and better. I've been flying this engine for over 2 years... Does this mean it's just now getting broke in. LOL It really ran like a top tonite !!! Hurayyyyyyyyyy !!!

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RE: Welcome to Club SAITO ! - 9/29/2005 5:19 PM   
PlaneKrazee



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Status: offline 		William,

Sounds like we will be starting club e motor in the not so distant future if we can't fly our Saitos and other brands.

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