22Racer

iTrader: (67)

I got this in a lot of Go parts but it is not a Go. I am not sure on the bore size but it is bigger than common long stroke motors.
Pay no attention to the rod, it is on backwards and that is a Go rod.

Thanks,

Rex

helivaguy

iTrader: (42)

cant tell if its taiwan or italian .21,.28 (prob a .21 if it had a go rod)but to me it looks like a Trinity Extech or Sirio CL7B sleeve.

wingracer

iTrader: (24)

Will it fit in a Go block? If so, probably a Nova of some variety.

Roelof

The dot under the exhaust tells me a Novarossi and from what I have read the rods from Novarossi are exchangeable with GO.

houston

iTrader: (96)

I think it is an original WS7 Rex

helivaguy

iTrader: (42)

i honestly dont beleive its in the novarossi family.
here is a sirio and extech sleeve.

sirio

extech

22Racer

iTrader: (67)

Looks like the Sirio, it does not have a cast piston so I don't think it's an Rb/Nova.
Thanks guy's!

Rex

wingracer

iTrader: (24)

Good catch Roelof, the dot is a clear Nova indicator. Yeah it looks like the pics of the Sirio but the Sirios don't have the dot.

Measure the rod, if it's the same length as a Nova/Go, it's a Nova. If it's .5mm longer, it's a Sirio.

helivaguy

iTrader: (42)

i have seen novarossi,jp racing and rb sleeves with and without the dimples,some have 1,2 and 3 and some have none.
i believe those dimples have something to do with the production/batch codes as i see no other purpose for them being there.
i am still convinced it is not a novarossi,rb sleeve.
also novarossi use both cnc milled billet and microcasted pistons.

22Racer

iTrader: (67)

I thought possibly a Axe Rossi, they have big bypass ports.

Rex

Maximo

iTrader: (11)

Sirio Kanai series...shorter stroke engine..