I have a Saito 300 twin on nitro - RCCanada - Canada Radio Controlled Hobby Forum
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Old 09-10-2016, 11:28 PM   #1
plowboy
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I have a Saito 300 twin on nitro


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What I am asking is, how easy would it be to convert it to gas, and would it be worth the trouble........ Thanks in advance........ Al
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Old 09-11-2016, 05:22 AM   #2
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Re: I have a Saito 300 twin on nitro

I know they have been converted to spark ignition, but still using nitro.
If you want to change to gasoline I recommend 20:1 fuel mix, that's what my Satio 57 twin uses.
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Old 09-11-2016, 07:58 AM   #3
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Re: I have a Saito 300 twin on nitro

Send it to this guy -> https://www.ch-ignitions.com/product...e-conversions/

He will do a conversion for you, so it'll be turnkey plug and play.
Ignition
Magnetic ring
Ignition Pickup and sensor
CDI Ignition
Modified Intake Tube
Gas Pumper Carburator assy
Tested and video of it running.

Note taken directly from their website. If your engine is not on their list:

If your engine is not on our list please contact us and we will make that conversion engine FREE, just pay the shipping back and forth.
We are a phone call away 561 927 6171



He does a great job.
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Old 09-11-2016, 05:17 PM   #4
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Re: I have a Saito 300 twin on nitro

If you convert to ignition and still run glow fuel my understanding is that you no longer require nitro in the fuel. That means you are not stuck paying high prices for premixed fuel if you have a source of methanol and oil and you shouldn't see the decrease in power that comes with converting to gas.
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Old 09-11-2016, 05:33 PM   #5
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Re: I have a Saito 300 twin on nitro

Joe,
good website to know.... Starting a new savings jar.... I have a Saito 220 Id like to convert... Nitro is expensive for this thirsty beast and has a violent kickback that break props. In this conversion would there be much power loss going from nitro to gas? Says 105 power loss but how noted would that really be

D.
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Old 09-11-2016, 06:34 PM   #6
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Re: I have a Saito 300 twin on nitro

There is power loss, yes. But not enough to be concerned about. What you'll gain in throttle response and reliability is well worth it in my opinion. In addition, the fuel economy is quite interesting. You'll be able to use 1/3 smaller tank and still have fuel left over in the tank when you land after 15 minutes.
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Old 09-11-2016, 07:45 PM   #7
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Re: I have a Saito 300 twin on nitro

I love the fuel economy of my FG11, 30 minutes on 5 oz but I worry about the fact that that is only 1/4 of an oz of oil for 30 minutes running. Not much lube for an engine that would normally get at more than double that in the same amount of run time!
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Old 09-11-2016, 08:12 PM   #8
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Re: I have a Saito 300 twin on nitro

The fact that it has a bushed rod and is going to run much hotter than glow are also factors . the power loss will be significant ,I'm guessing 15-25% because we are using pump gas , alcohol will stand neck and neck with top racing fuel and produce even more torque . we are not switching to racing fuel so the losses will be quite large. engine longevity will also take a hit on gas .


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Originally Posted by OLD PRAIRIE RED NECK View Post
I love the fuel economy of my FG11, 30 minutes on 5 oz but I worry about the fact that that is only 1/4 of an oz of oil for 30 minutes running. Not much lube for an engine that would normally get at more than double that in the same amount of run time!
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Old 09-13-2016, 09:11 AM   #9
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Re: I have a Saito 300 twin on nitro

Lack of oil will take out the big end of the conrod. As much as 20% good quality 2S oil may be required.
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Old 09-13-2016, 09:30 AM   #10
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Re: I have a Saito 300 twin on nitro

Quote:
Originally Posted by RAMJET View Post
The fact that it has a bushed rod and is going to run much hotter than glow are also factors . the power loss will be significant ,I'm guessing 15-25% because we are using pump gas , alcohol will stand neck and neck with top racing fuel and produce even more torque . we are not switching to racing fuel so the losses will be quite large. engine longevity will also take a hit on gas .
BTW, as mentioned above, for Saito's I wouldn't worry too much about it, every Saito including the GAS engines use bushings on the master rod. Just make sure you use the appropirate amount of oil. Use 20:1 oil ratio and you'll be fine for a really really long time.

Master Rod for FG63 Master Rod:


Broken, but it does show the bushing on the FG84:
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