RE: GAS Saito  
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All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Gas Engines >> RE: GAS Saito
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RE: GAS Saito - 2/3/2008 5:52:11 PM   
laryboy



Posts: 719
Joined: 7/16/2003
From: wilmington, MA, USA
Status: offline 		manual requires a 3 amp switch for ignition. could not find any further info. any body measure current while motor is running.

(in reply to Charley)
       Post #: 151

RE: GAS Saito - 2/4/2008 4:44:50 AM   
Charley


 

Posts: 924
Joined: 12/5/2001
From: Kerrville, TX, USA
Status: offline
quote:

ORIGINAL: laryboy

manual requires a 3 amp switch for ignition. could not find any further info. any body measure current while motor is running.


Well see, the 3 amp rating is the switching rating, not the continuous current rating. IOW the contacts are rated to make or break a circuit of 3 amps current. The engineer will use a switch with a higher switching current than the circuit will carry, for safety and longevity's sake. So the circuit average current is going to be lower than the switching current.

CR



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ccrobins@ktc.com

(in reply to laryboy)
       Post #: 152

RE: GAS Saito - 2/4/2008 3:09:28 PM   
togatoga


 

Posts: 269
Joined: 11/26/2004
From: Singapore, SINGAPORE
Status: offline 		Anybody has any adverse thing to say about this engine before i hit the pay button?

I have a NIB nitro saito 220a- is it worth converting instead? I see a new carb,inlet manifold,thrust washer with magnet and pickup sensor. Are the innards the same?

A fourstroke fires every 2 revolutions , does that mean you need a special ignition system?


(in reply to Charley)
       Post #: 153

RE: GAS Saito - 2/4/2008 3:32:55 PM   
3D_Junkie


 

Posts: 174
Joined: 5/2/2007
From: League City, TX, USA
Status: offline
quote:

ORIGINAL: togatoga

Anybody has any adverse thing to say about this engine before i hit the pay button?

I have a NIB nitro saito 220a- is it worth converting instead? I see a new carb,inlet manifold,thrust washer with magnet and pickup sensor. Are the innards the same?

A fourstroke fires every 2 revolutions , does that mean you need a special ignition system?



No special ignition requried. It will just fire on the exhaust stroke as well as the compression stroke, with no harm done since there is no fuel in the cylinder to combust.

(in reply to togatoga)
       Post #: 154

RE: GAS Saito - 2/4/2008 4:24:23 PM   
togatoga


 

Posts: 269
Joined: 11/26/2004
From: Singapore, SINGAPORE
Status: offline 		Thanks very much! Another thing learnt. I was thinking of using an aft market ignition system if the nitro 220a can be converted without great cost.

(in reply to 3D_Junkie)
       Post #: 155

RE: GAS Saito - 2/8/2008 3:18:00 PM   
pettit



Posts: 2123
Joined: 12/19/2001
From: Durham, NC, USA
Status: offline 		Hot off the press:

Saito FG36 tests:

Total weight (engine, mount, ignition, prop nut and washer) 61.5 oz.

(after 30 minutes run time)
APC 20-8 7100 RPM
APC 18-8 7450 RPM

Idle at 1500 RPM or less

90db(a) at 25' at full RPM

Hand starts easily, but I couldn't get the carb to prime by hand (no manual choke)

Use electric starter first start of the day, then hand start from there on out

Ignition draws about 340 ma at full speed (no huge battery needed)

And it sounds GREAT!!!



_____________________________

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Associate Editor, R/C REPORT Magazine
"You Can Buy Better,
But You Can't Pay More"

(in reply to togatoga)
       Post #: 156

RE: GAS Saito - 2/9/2008 1:15:44 AM   
Jezmo



Posts: 809
Joined: 6/26/2006
From: Spring, TX, USA
Status: offline 		Thanks Dick, very good to know.

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Raptor 50 V2 OS 50 Hyper, T-Rex 450XL CDE, Spektrum DX7, SuperTigre OS FOX Saito Enya Jett TT

(in reply to pettit)
       Post #: 157

RE: GAS Saito - 2/9/2008 2:00:29 AM   
kochj



Posts: 1444
Joined: 12/5/2005
From: Victoria, MN, USA
Status: offline 		Dick,
It is possible that you had a carb that had a weak gasket for fuel draw, so it might not be the case for all....
It would be nice to have a choke though?



Just in!.....

Great planes Giant Super chipmunk!
(I think they are disc. it)

220$ Delivered!!!!!!!!!!

This is the perfect plane for this engine, and the plane is a real buet.....
A zdz40 balances this plane w/o balast.
Should be no issues balancing with the saito gasser either.....

I just put my order in...

Jusitin

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(in reply to pettit)
       Post #: 158

RE: GAS Saito - 2/9/2008 9:01:42 PM   
kochj



Posts: 1444
Joined: 12/5/2005
From: Victoria, MN, USA
Status: offline 		Dick (or anyone else)
would those numbers be equall to a 30-32cc gas 2-stroke?

a 32 gas magnito says...
APC 18X8 7900 RPM in the manual......

I guess it is hard to speculate (as in the Videos that I have seen, it looks much more powerfull than a 26cc gas 2-stroke engine)
not figuring in 4-stroke torqe and all that jazz, but swinging a prop, is still swining a prop!

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Winning isn''t everything, it''s all there is.

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       Post #: 159

RE: GAS Saito - 2/9/2008 10:10:41 PM   
snobird



Posts: 82
Joined: 1/4/2002
From: Poland, ME, USA
Status: offline 		My Saito gas 36,,with a 18-6, turns about 7900 and lotsa power. have it installed in my GP Pitts Special and it really hauls a--, and uses very little gas and starts on first spin of the starter. love it

(in reply to kochj)
       Post #: 160

RE: GAS Saito - 2/9/2008 10:49:34 PM   
WhoDaMan


 

Posts: 2416
Joined: 12/8/2001
From: Davis, CA, USA
Status: offline 		Does anyone know if I can run a straight pipe on this and or if it needs the muffler
Thanks,,, Dave

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(in reply to snobird)
       Post #: 161

RE: GAS Saito - 2/10/2008 11:03:47 AM   
togatoga


 

Posts: 269
Joined: 11/26/2004
From: Singapore, SINGAPORE
Status: offline 		Whats the best prop size and optimal rpm range for this engine? I see 18x6 and 18x8 being thrown about. Anyone has comparable figures for a similar weight engine like the spe40 etc. ?
Is the exhaust note similar to the nitro version or quieter?
HP figures quoted seem to be quite close to the equivalent two strokes.

(in reply to WhoDaMan)
       Post #: 162

RE: GAS Saito - 2/10/2008 11:25:01 PM   
kochj



Posts: 1444
Joined: 12/5/2005
From: Victoria, MN, USA
Status: offline
quote:

ORIGINAL: snobird

My Saito gas 36,,with a 18-6, turns about 7900 and lotsa power. have it installed in my GP Pitts Special and it really hauls a--, and uses very little gas and starts on first spin of the starter. love it



Great to hear!.....
May I ask what the plane weights?
Justin

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Winning isn''t everything, it''s all there is.

(in reply to snobird)
       Post #: 163

RE: GAS Saito - 2/10/2008 11:27:53 PM   
kochj



Posts: 1444
Joined: 12/5/2005
From: Victoria, MN, USA
Status: offline
quote:

ORIGINAL: togatoga

Is the exhaust note similar to the nitro version or quieter?




If you do a search for the Gas saito, there are a couple of videos on them.....
The sound is almost same as the 220 nitro.... From what I can tell from the vids...

_____________________________

Winning isn''t everything, it''s all there is.

(in reply to togatoga)
       Post #: 164