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Forum: Tachometer Readings

06-16-2016, 01:13 PM

Replies: 35

.40 -.46 shootout

Views: 6,873

Posted By airraptor

Yes I think so. the 9x8 is a good benchmark prop...

Yes I think so. the 9x8 is a good benchmark prop for me. I will have to go look and run a few engines on the 10x6 APC and get back with you. may tack some time as I am working on race planes for...

Forum: Tachometer Readings

06-15-2016, 10:26 PM

Replies: 35

.40 -.46 shootout

Views: 6,873

Posted By airraptor

Well after working with my buddy Ron we got one...

Well after working with my buddy Ron we got one of the old Italy ST 45s to turn a APC 9x8 at 17,400 with a tower muffler on 10% nitro and 18,100 on a red Jett muffler with 5% but needs a bigger...

Forum: Tachometer Readings

06-04-2016, 12:16 PM

Replies: 35

.40 -.46 shootout

Views: 6,873

Posted By airraptor

Thanks for the info. I havent played with many...

Thanks for the info. I havent played with many normal two strokes lately. Most of my time has been racing. I am racing Q40 and figuring out these engines as far as timing and head clearance goes. so...

Forum: Tachometer Readings

06-04-2016, 08:03 AM

Replies: 35

.40 -.46 shootout

Views: 6,873

Posted By airraptor

The ports on the Italy ST are better matched to...

The ports on the Italy ST are better matched to the case and have more detail in them. The transfer and boost ports are lower than on the China STs. I had thought they were the same also until I...

Forum: Tachometer Readings

06-03-2016, 10:31 PM

Replies: 35

.40 -.46 shootout

Views: 6,873

Posted By airraptor

qwk the Italy ST 45 have lower timing and make...

qwk the Italy ST 45 have lower timing and make better power down lower where the china made ones have higher timing but worse port matching. The china ones perform better with the Jett muffler than...

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