MetallicaJunkie

I need a little help here.. A friend of mine pointed me in the right direction towards the CH conversion. But they have 2 conversions that seem very similar

I have an old stock glow saito 150 that id like to convert over to gas


here are the two options CH sells

Saito Glow CDI Conversion http://www.ch-ignitions.com/index.ph...cdi_conversion what is a GLOW CDI? i though only gas engines used CDIs

Saito Gasoline CDI Conversion http://www.ch-ignitions.com/index.ph...cdi_conversion

SrTelemaster150

CDI is merely a spark ignition system. It doesn't matter to the CDI whether it is lighting off gasoline or glow fuel.

The big difference is power output. An engine converted to CDI properly tuned for glow fuel will make about 5% MORE HP than the GI (glow ignition) version while a gas conversion will produce about 15% LESS HP then the same engine W/GI.

Taken together, CDI/glow fuel will produce greater than 20% more HP than a gasoline conversion.

w8ye

My Feedback: (16)

I have a old style CH ignition (from the previous CH company) on my Saito 150. It will run either glow fuel or gasoline.

I run the gas/oil at 20:1.

SrTelemaster150

How did you get the alcohol carburetor to run the gas W/O being overly sensitive? I got mine to "run" but it was very touchy & had to be fiddled with a lot.

Just a bit of trivia:

The "old" company was CH Electronics,


the "new" is CH Ignitions.

MetallicaJunkie

ok thanks for the explanation Telemaster....so that means ill need to go down in rop size if i do convert it to gas (gas CDI)? it happily swung a 17x6 using glow fuel....now ill have to go down to a 16x6?

w8ye

My Feedback: (16)

It runs fine with the original carb. Has a rich spot around 5,000 where I stay above or below it.

nonfanatic

My Feedback: (18)

I'm in Mcallen, I have a couple of the ch ignition conversion in both gas and glow, They run great. just converted fron my h9 1/4 scale cub back to gow with igniton and it spun a dynaflight 18-8 (ancient prop) 6600 rpm! with out tuning. gonna fiddle with it some more when I get time.

MetallicaJunkie

cool...it's rare to run into a "local" on here.... im gonna do a CH conversion too... i just need to get the plane back in flying condition first then ill work on the engine

nonfanatic

My Feedback: (18)

Eddie, is this you?

MetallicaJunkie

Sure is.... Rick?

nonfanatic

My Feedback: (18)

yep............. missed you at Tejas yesterday. we had a good time...............flew the cub with the C&h ignition on glow, runs really well.

MetallicaJunkie

cool ... im glad you could fly with the guys..It was an awesome day yesterday...Ive been flying close to my house lately...its hard to beat a 3 minute drive when all i need is a quikie.... before i get into the conversion i would really like to see one of your saitos and how yours is set up... i might not need the full kit... i have a spare hall sensor and ignition module and a spare carb from a dl55