y0793 SPEED TEC EXPERT Zenoah G270 tuning engine

y0557 Zenoah G230RC, with Walbro WT 603B carburetor (also available in the ball-raced version through the shop's options menu)23 cm³ Zenoah engine for large scale cars!The engine will be delivered with pull starter, carb and spark plug / spark plug cap. Genuine Zenoah air filter and / or complete clutch are optionally available at additional charge.y1009 Zenoah G240RC with Walbro WT 990 carburetor (also available in the ball-raced version through the shop's options menu)23 cm³ Zenoah engine for large scale cars!Please note: contrary to their new designation the displacement has not been increased! The outer dimension didn't change, so you don't need any additional parts for the engine swap!The engines feature the following improvements over their G230RC:- Quantity of cylinder mounting bolts increased from 2 to 4- Improved strength of crankcase- Added additional bearing on the PTO (clutch) side of crankshaft- Redesigned shape of cylinder fins- Dimension of air intake port is 5% widerContains internal fuel pump which increases acceleration from idle to wide open throttle.Removal of choke valve increases performance by increasing air flow to the carburetor - Changed material of the insulator gasket to metal, which improves sealing performanceThe engine will be delivered with pull starter, carb and spark plug / spark plug cap. Genuine Zenoah air filter and / or complete clutch are optionally available at additional charge. y0553 Zenoah G260RC with Walbro WT 603B carburetor (also available in the ball-raced version through the shop's options menu)This is the G260 in the 26 cm³ version.The engine will be delivered with pull starter, carb and spark plug / spark plug cap. Genuine Zenoah air filter and / or complete clutch are optionally available at additional charge. y1011 Zenoah G270RC with Walbro WT 990 carburetor (also available in the ball-raced version through the shop's options menu)26 cm³ Zenoah engine for large scale cars!Please note: contrary to their new designation the displacement has not been increased! The outer dimension didn't change, so you don't need any additional parts for the engine swap!The engines feature the following improvements over their G260RC:- Quantity of cylinder mounting bolts increased from 2 to 4- Improved strength of crankcase- Added additional bearing on the PTO (clutch) side of crankshaft- Redesigned shape of cylinder fins- Dimension of air intake port is 5% wider- New carburetor (WT-990) Contains internal fuel pump which increases acceleration from idle to wide open throttle.Removal of choke valve increases performance by increasing air flow to the carburetor - Changed material of the insulator gasket to metal, which improves sealing performanceThe engine will be delivered with pull starter, carb and spark plug / spark plug cap. Genuine Zenoah air filter are optionally available at additional charge. 7800 Zenoah G290RC with Walbro WT 990 carburetor (also available in the ball-raced version through the shop's options menu)Same dimensions as the Zenoah G230, G240, G260, G270.New generation Zenoah engine with 28,5ccm cylinder capacity and approx. 3.9 hp. The cylinder is fixed with 4 screws. The technical details are identical to the Zenoah engines G240RC and G270RC.The engine will be delivered with pull starter, carb and spark plug / spark plug cap. Genuine Zenoah air filter and / or complete clutch are optionally available at additional charge. Compatibility Zenoah / Losi 5ive-T:Please note that for installation in a Losi 5ive the fan cover must be swapped for a Losi or CY cover #5341 in order to fit the chassis" bolt pattern.If you want to install a Zenoah engine into the Losi 5ive, you usually have to use a fan cover from the CY engine.However, there is a workaround to maintain Zenoah fan cover.The adjustment is done via the pinion specific mounting plates for the engine. The change always affects only the rear, outer (carburetor side) plate under the fan cover. This is rotated by 180°; so that the embossed number on this plate faces the exhaust side of the engine!18T pinion: use 20T plate, rotated 180°19T pinion: use 19T plate, rotated 180°20T pinion: use 18T plate, rotated 180°On the plus side you gain the opportunity to easily mount a Zenoah engine keeping the original fan cover. On the other hand there will be the disadvantage of the necessity to combine two different sets of engine mounting plates when installing any pinion other than the stock 19T version. Therefore we do not recommend this workaround for everyday use. Nevertheless it works perfectly should ever the need arise.Zenoah G320RC with Walbro WT 1107 carburetor (also available in the ball-raced version through the shop's options menu)With 32 cm³ and 30% more power than the Zenoah G290.Significantly more torque and higher stamina due to larger sized bearings all around, with Racing Carburetor Walbro WT 1107.The motor is supplied with WT-1107 carburetor and spark plug.SpecificationType: Two stroke gasoline engineDisplacement: 31,8 cm³Bore: 38 mmStroke: 28 mmWeight: 2,3 KgOverall Dimension:Length: 167 mmWidth: 215 mmHeight: 196 mmMaximum Output: 4,6 PSMaximum Torque: 2,00 N-mRotation Direction: CounterclockwiseCarburetor: Walbro WT-1107Spark plug: CMR7HStarting: Recoil starterFor all HPI Baja 5 cars the G320RCer clutch housing has to be shortened at the mounting base, for Losi 5ive- T and Desert Buggy XL cars the clutch housings overall length must be shortened to CY size.When installing the air filter you must pay attention to the length of the screws.For use on Losi and HPI we recommend M5x45 screws (like H94763); you can also cut existing screws to length, of course.When ordering with a modified clutch housing we will include these screws!In our shop you can select from Zenoah G320RC engines already modified to fit your HPI or Losi car.The installation of the Zenoah G320RC in other cars (like FG or Smartech buggies / monsters a.s.o.) is not even remotely straightforward, since the layshaft pinion (the small pinion in front of the big differential spur gear) is in the way for the larger Zenoah G320RC crankcase.Compatibility Zenoah / Losi 5ive-T:Please note that for installation in a Losi 5ive the fan cover must be swapped for a Losi or CY cover #5341 in order to fit the chassis" bolt pattern.If you want to install a Zenoah engine into the Losi 5ive, you usually have to use a fan cover from the CY engine.However, there is a workaround to maintain Zenoah fan cover.The adjustment is done via the pinion specific mounting plates for the engine. The change always affects only the rear, outer (carburetor side) plate under the fan cover. This is rotated by 180°; so that the embossed number on this plate faces the exhaust side of the engine!18T pinion: use 20T plate, rotated 180°19T pinion: use 19T plate, rotated 180°20T pinion: use 18T plate, rotated 180°On the plus side you gain the opportunity to easily mount a Zenoah engine keeping the original fan cover. On the other hand there will be the disadvantage of the necessity to combine two different sets of engine mounting plates when installing any pinion other than the stock 19T version. Therefore we do not recommend this workaround for everyday use. Nevertheless it works perfectly should ever the need arise.

The SPEED TEC EXPERT genuine Zenoah G290 engine is optimized for performance with sophisticated craftsmanship and guarantees, besides greatly increased performance, excellent workmanship and stamina. SPEED TEC EXPERT version modifications: Cylinder: Adjustment of compression; enlarged ports, fuel management milled, machined and polished exhaust and intake. Piston: weight reduced; skirt shortened; oil rings, piston above and below piston ring tapered and piston dome ground. Crankshaft: is adjusted and aligned. Flywheel: weight reduced and checked for runout. Gaskets: use of premium quality gaskets.To achieve the optimum performance gain of a SPEED TEC EXPERT engine, we recommend the use of a tuned pipe ( to the tuned pipes ).

The SPEED TEC COMPETITION genuine 5ive-T engine is optimized for performance with sophisticated craftsmanship and guarantees, besides greatly increased performance, excellent workmanship and stamina. SPEED TEC COMPETITION version modifications: Cylinder: Adjustment of compression; enlarged ports, fuel management milled, machined and polished exhaust and intake, the case is specially matched with enlarged and polished cross section towards the ports, oil holes for optimized lubrication of the crankshaft bearings. Piston: weight reduced; skirt shortened; oil rings, piston above and below piston ring tapered and piston dome polished. Crankshaft: is adjusted, aligned and balanced, high quality Fluon shaft seals and Top Drag Seals installed. Flywheel: weight reduced and checked for runout.Insulator:mounted SPEED TEC tuning insulator. Gaskets: use of premium quality gaskets.To achieve the optimum performance gain of a SPEED TEC COMPETITION engine, we recommend the use of a tuned pipe ( to the tuned pipes ).

Fully synthetic oil, available in three blends. 1-liter bottle.The optimal 2-stroke oil for 23-30 cm³ engines/cars Motul Racing Oil is available in three different blends: On-Road for high revving onroad cars Off-Road for cars with high torque enginesMixing ratio for 1/5 & 1/6 applications: We recommend a mix with about 4% oil, which means 200 cc of oil to 5 litres of gas (1:25 ratio). With one litre of Motul oil you can mix about 25 litres of optimal fuel for your 1/5 or 1/6 car. That's enough for well over 20 hours of driving fun! Oil / Gas Oil percent Oil per 1 liter of gasoline Oil per 2 liter of gasoline Oil per 3 liter of gasoline Oil per 4 liter of gasoline Oil per 5 liter of gasoline 1:20 5% 50 ml 100 ml 150 ml 200 ml 250 ml 1:25 4% 40 ml 80 ml 120 ml 160 ml 200 ml 1:30 3,33% 33 ml 67 ml 100 ml 134 ml 167 ml 1:33 3% 30 ml 60 ml 90 ml 120 ml 150 ml 1:35 2,86% 29 ml 58 ml 86 ml 115 ml 143 ml 1:40 2,5% 25 ml 50 ml 75 ml 100 ml 125 ml 1:50 2% 20 ml 40 ml 60 ml 80 ml 100 ml

The SPEED TEC 7-port genuine Zenoah engine is optimized for performance by hand with sophisticated craftsmanship and guarantees, besides greatly increased performance, excellent workmanship and stamina. More power and torque through the three additional transfer ports.SPEED TEC V 7-port version modifications: Cylinder:Cylinder bottom modified for higher compressionenlarged and flow-optimized transfer portsmachining of three additional transfer ports raises number of ports from 4 to 7intake and exhaust ports optimized and matchedport timing modifiedCrankshaft:is adjusted, aligned and balancedFlywheel and ignition:Weight reduced and checked for run-out.Gaskets:Premium quality gaskets installed. Cylinder gasket installed using elastic gasket sealer.With the new "K & N" version of the Losi DBXL there is another detail, which need to be considered.From the very beginning the hole pattern for the engine installation in the DBXL chassis plate was no precise match to the hole pattern of the engine, even when delivered in stock form with standard engine. Now with the "K&N" version the engine mount has been changed to eliminate this discrepancy. However, all aluminum engine mounts available on the market share their dimensions with the previous plastic engine mount. For the installation of a G320 Zenoah in a "K&N" -DBXL two possible combinations exist in order to obtain the correct hole pattern:When using the standard (new) plastic engine mount a shortened clutch housing is required as in a 5ive-TWhen using an aluminum engine mount a stock length clutch housing is requiredSeparately, it is recommended to enlarge the cutout in the body panel in front of the K & N air filter for about 2 - 3 mm to ensure that the panel cannot chafe on the air filter.For all HPI Baja 5 cars the G320RCer clutch housing has to be shortened at the mounting base, for Losi 5ive- T and Desert Buggy XL cars the clutch housings overall length must be shortened to CY size.When installing the air filter you must pay attention to the length of the screws.For use on Losi and HPI we recommend M5x45 screws (like H94763); you can also cut existing screws to length, of course.When ordering with a modified clutch housing we will include these screws!In our shop you can select from Zenoah G320RC engines already modified to fit your HPI or Losi car.The installation of a Zenoah G320RC in a Smartech C5 onroad car is possible without modifications. However, due to the engines performance aluminum engine mounts (set # y0189) are mandatory!The installation of the Zenoah G320RC in other cars (like FG or Smartech buggies / monsters a.s.o.) is not even remotely straightforward, since the layshaft pinion (the small pinion in front of the big differential spur gear) is in the way for the larger Zenoah G320RC crankcase.Compatibility Zenoah / Losi 5ive-T:Please note that for installation in a Losi 5ive the fan cover must be swapped for a Losi or CY cover #5341 in order to fit the chassis" bolt pattern.If you want to install a Zenoah engine into the Losi 5ive, you usually have to use a fan cover from the CY engine.However, there is a workaround to maintain Zenoah fan cover.The adjustment is done via the pinion specific mounting plates for the engine. The change always affects only the rear, outer (carburetor side) plate under the fan cover. This is rotated by 180°; so that the embossed number on this plate faces the exhaust side of the engine!18T pinion: use 20T plate, rotated 180°19T pinion: use 19T plate, rotated 180°20T pinion: use 18T plate, rotated 180°On the plus side you gain the opportunity to easily mount a Zenoah engine keeping the original fan cover. On the other hand there will be the disadvantage of the necessity to combine two different sets of engine mounting plates when installing any pinion other than the stock 19T version. Therefore we do not recommend this workaround for everyday use. Nevertheless it works perfectly should ever the need arise. Attention! We recommend to run exclusively fully synthetic 2-stroke engine oil, like y0813 Motul 800 racing oil.

With the Big Scale-EXTREME an adjustable clutch for very special requirements has been designed:For large-displacement enginesFor heavy or high traction cars (Losi, HPI)For modified performance enginesFor the demanding off-road useRapid wear of a clutch is a sign of constant slipping, even beyond engagement speed. In this case, the clutch does not transfer the applied torque.This is where the Big ScaleEXTREME sets a new standard.The new design of the "Extreme" prevents the centrifugal forces of clutch springs or lever side of the clutch shoes from counteracting the centrifugal force of the friction pad side even after engagement.As a result this clutch can transfer lots of power with minimal wear.The new design ensures that the centrifugal forces are transferred in full to the clutch lining. Precise engagement and disengagement even under high loads and inside of closed clutch bell carriers means no problem for this clutch.The clutch can be easily adjusted to the engagement speed through three set screws without clutch bell removal, so you can match the characteristics of your engine.The special clutch lining of the Big Scale-EXTREME is particularly wear-resistant and - especially in combination with a high-quality nitrited clutch bell (), guarantees for an exceptionally long service life! Contrary to the "Cross" or "Race" version there's no need to uninstall the clutch from the engine for maintenance. All parts are easily accessible from the front after removing the front plate.Please see the specifications tab for further information and handling advices!The regular price of the Big Scale-EXTREME is EUR 139.90