cybertoolzz

thx - of course i have BEEN here -
a. nothing about what kind of PLUGS the motors use - what is and IS NOT "turbo";

b. nothing about what the 'TR' means or anything about any of the other designations...

thx - a little more info here - the data for the kinds of plugs used in the motors is listed - that helps;

also note that the CARB dia. listed on this site shows as 5.5mm for the RS12S1TR - whereas the other site (above) lists the carb as 5.4 dia for the same motor - which is ACCURATE?

here's what i have been able to figure out;

'TR' designation means Truck - NOT repeat NOT turbo!
'T' means Turbo
'S' means Slide
'R' means Rotary
'1' means 5M shaft = threaded??
'2' means SG shaft
'3' means 3 ports - but MOST of them HAVE 3 ports - wtf??
'5' means 5 ports - ?? what about 4??

next - it is the ORDER in which the designators are listed that is CRITICAL; the 'T' for turbo must come directly AFTER the '12' - if it doesn't = non turbo. for example,
RS12S1 = non turbo
RS12TS1 = turbo;

i can see why it was easy for the guys at the lhs to get confused - just the ITALIAN way. i guess they don't have any difficulty with this extremely confusing naming scheme at Novarossi.

SO - what about wether or not i can use the turbo head in THIS RS12S1TR motor? - it fits - that's for sure - the parts listed with the motor show TWO diff part numbers for the std and turbo heads - i believe that it's simply switching to the turbo head - just like on my sts12 - that's all i did to go turbo on my sts12. i just want to be sure i have it correct. damn Italians....



same thing for the crank - TWO part nums;

the question IS - what is DIFFERENT about the two cranks? what makes one crank a turbo and the other non-turbo? the crank on the motor i bought (the motor which is NOT turbo - even though it SAYS it is tubRo!) has the shark groove in the face of the crank... what else does a 'turbo crank' have? a widened inlet port?

still confused...