Turbocharged Yamaha 2 stroke

Old 06-30-2015, 01:47 PM
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Default Turbocharged Yamaha 2 stroke

Hi my name is Dave.....
I have an IHI31 turbo installed on a Yamaha CT175 two stroke motor installed in suck thru mode.

Yes it runs.... just not well.

I need your help !
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Old 07-01-2015, 08:43 AM
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Just checking - the turbine is AFTER the expansion chamber, right?

How's the air/fuel ratio?
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Old 07-02-2015, 03:18 PM
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Yes the turbo is after the expansion chamber.... in regards to A/F mixture have played with that extensively tried a couple of different size carbs and a wide range of jetting (200 - 400 main jet sizing)

I found the Turbo Banshee thread here.....but like most people they never seem to follow thru and actually do something !!

Anyways hopefully someone on here has some actual experience turbocharging 2 stroke ?

Based on my tests, the compressor output is about 50% of what my motor needs..... may try a GT1241 or a GT1544 ?

Any other ideas on possible turbo's near this size ?




You gotta love Burt Munro....



I had to cancel Bonneville next month as this project is now behind schedule.

Attached Thumbnails Turbocharged Yamaha 2 stroke-20150321_160209.jpg   Turbocharged Yamaha 2 stroke-burt-munro-indian-motorcycle-australia.jpg  

Last edited by Meis; 07-02-2015 at 03:32 PM.
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