O.S. (#11385) - O.S. Speed 12 TZ Spec II 2 - NEW OS ENGINE
This is the O.S. Max 12TZ Spec II (P) Pilot Crankshaft
Speed Tuned motor for 1/10 scale race.
Meets IFMAR requirements.
*** as a result of high end associated with the TZ Series Engines ***
*** OS will not provide a guarantee with this particular engine ***
QUALITIES: Silicon filled crankshaft Nine fin aluminum cooling mind, black in color Two-piece turbo cylinder mind with magnesium outer head Ceramic rear ball bearing 11HBS Slide Valve Carburetor (OSMG3667) Round backside exhaust
INCLUDES: One O.S. Max 12TZ Spec II Pilot Shaft Speed Tuned motor with P7 glow plug (OSMG2695) 11HBS valve carbohydrate, decal sheet, instructions 5.5mm carb reducer, and plastic exhaust sealing ring
NEEDS: Fuel: 10%-30per cent nitro (suggest beginning w/20% changing to a greater nitro content if necessary) with at the very least 16percent lubricant air cleanser DTXG2612
SPECS: Bore: 0.543" (13.8mm) Stroke: 0.551" (14.0mm) Displacement: 0.128 cu in (2.1cc) Practical RPM Range: 5,000-44,000 energy Output: 1.7 ps/35,000 RPM body weight: 7.336oz (208g)
Distance between mounting holes exact same part: 0.43" (11mm) Distance between mounting holes opposite side: 1.2" (31.4mm) Width excluding mounting flanges: 1" (25.4mm) Width including mounting flanges: 1.5" (39mm) Height bottom of crankcase to top of cylinder head: 3.5" (89mm) Height crankshaft center to top of cylinder mind: 2.9" (74.2mm) Length from front side of crankcase to end of crankshaft: 1.2" (29.5mm) Length center line of piston to front side of crankcase: 1.4" (34.8mm) Length center distinct piston to front of crankshaft: 2.5" (64.3mm) Length from backplate to finish of crankshaft: 3.1" (79.4mm) Length from backplate to front of crankcase: 1.9" (49.9mm) Crankshaft threads: 1/4-28
OPINIONS: Some records on slip valve and rotary carburetors: Rotary carbs provide a bigger reaction in the ability musical organization. This is useful for off-road applications whenever throttle reaction needs to be diverse. Slide Valve carbohydrates provide greater reaction at the start and end regarding the power band. This is effective for on-road and racing applications for quick take-offs and high speed. Numerous superior machines have short life, as racers constantly strive to "lean them down" for greater performance. Regrettably, in addition makes engines run hotter, which reduces their lives. Needle Valve (aka High Speed Needle): Approximately 2.5 turns from shut, page 19 in manual Mixture Control Screw (aka minimal Speed Needle): Factory set in which slotted head is flush with carbohydrate human anatomy, page 25 in manual Metering Needle: Factory set in which slotted head is flush with ball website link body, web page 25 in manual Throttle Stop Screw: Approximately 0.5mm open using the reducer eliminated (factory set)
