Photo and more detailed description to come, main photo not contractual !!!
Not approved on open road, only reserved for competition on circuit, runs, closed road.
The color is announced: very high-end Mazzuchelli crankshaft (like the MHR BIG Bore) with forged 90mm connecting rod and Ø20mm bearings, 12x17x15 mm cage, very high quality steels, dynamic top balancing designed to be assembled without a balancer, excellent diagrams , high compression stud cylinder head, excellent compression ratio, cooling studied with a semi-closed type cylinder, large diameter exhaust with boosters, 6 intake transfers with studied shapes, 43mm stroke with Ø47.6mm piston diameter, piston single segment ITALKIT graphite, ....
The competition has better behave and is far behind on most of the maxi-kits. Only negative point of this pack, the absence of a set of clutch springs, celeron bearings and several base gaskets like the pack for AM6! A novelty from the great Spanish brand ITALKIT and finally available from us, this ultra complete 80cc engine pack is mounted on mécaboite driving DERBI Euro 3 and 4. This set will offer you all the power you are looking for to distinguish yourself during competition and win first place .
As usual, the ITALKIT brand is no exception to the rule by composing this pack of the best current parts on the market. The aluminum alloy cylinder has a specific heat treatment and an internal coating in niquel / silica and external in chrome, giving it all its solidity and reliability, foolproof! Equipped with no less than 9 lights including 6 intake transfers, 2 shaped boosters and finally the impressive exhaust outlet by its shape and size to such an extent that the outlet diameter has been revised upwards and measures no less than Ø30mm, between axis of mounting for the exhaust 46 mm. A work of the crankcases is recommended in order to align the cylinder / crankcase perfectly.
That's not all, the cooling has also been completely revised and corrected in order to offer the best possible heat exchange and at the same time to obtain a significant performance gain, indeed less an engine runs out of steam and overheats. and the more the performances remain present.To accompany this cylinder, a cylinder head with competition stud! Top-of-the-range model, specially designed to offer maximum compression. The cylinder head stud is unfortunately not entering and mounted on an O-ring, the combustion chamber is hemispherical in shape and has a very successful polished finish, smooth and clean.
The Ø47.6mm piston is not chosen at random, it is a single segment model from ITALKIT with graphite treatment. In other words, very high quality material whose reputation / quality is well established. This piston is therefore equipped with a fine chrome segment 0.80 mm thick thus promoting the increase in speed. Thanks to the graphite treatment, its shapes and its composition, this piston has been very well designed and studied in order to offer better thermal expansion, at the same time fitting perfectly with this cylinder to withstand frank revisions, sudden changes of regimes and prolonged endurance on the track.
Finally, the special crankshaft 43mm stroke and 90mm connecting rod. This model is unique and once again very successful. It is perfectly well balanced and cut from the best steels on the market. Its dynamic balancing results from the inorganic tungsten carbide compound. This material in summary is a combination of carbon and tungsten. It is a material reputed to be very dense, very resistant and very hard.A new connecting rod is also installed on this linkage, an ultra-reinforced model machined in the mass. Ultra light, it is really reserved for competition!
It is this type of connecting rod that equips real competition crankshafts BIDALOT or MALOSSI MHR BIG BORE and other extremely rare vilo! Featherweight and maximum rigidity are there. Its lubrication is improved, the small end cage is increased for better holding, treated with silver and mounted on anti-friction wedges. A crankshaft as you will have understood, perfectly designed and adapted to accompany this high engine, which can support without no problem with the wildest engine speeds up to 16,000 revolutions / minute and in combination with this cylinder and the 43mm stroke the actual displacement is 76.52cc on condition of perfect assembly and proper adjustments. art!
In summary, this 80cc Ø47.6mm racing pack / kit for your DERBI euro 3 engine will be a real asset to offer you assured victories in competition, runs ... and guaranteed sensations at the same time!
We recommend that you accompany this pack with at least : a carburation of 26 to 28 mm for the best, an intake kit in flexible assembly, Selettra ignition from ITALKIT with variable advance, cold spark plug NGK B105EGV, racing engine oil mandatory , large-volume racing trigger exhaust essential ... followed by assembly with ITALKIT instructions provided.
In addition to this, you need to know more about it.
This pack contains :
-Cylinder Ø47.6mm aluminum 6 transfers with large exhaust booster
-Piston ITALKIT graphite mono segment Ø47,6mm
-Aluminum cylinder head cover
-High compression hemispherical cylinder head stud, polished finish
-Segment Ø47.6 end chrome thickness 0.80mm
-Reinforced piston axis Ø12 X 38mm
-Crab type piston clips
-Ultra reinforced crankshaft 43mm long stroke ultra reinforced 90mm rod without balancer
-Silver needle cage Ø12X17X15mm
-Pack motor seal
-X4 Reinforced studs M7X120mm
-Installation instructions
-Sticker
Technical recaps :
- Work of the original housings necessary for transfers revised upwards
- Cooling: semi-closed liquid
- Compression ratio: nc
- Announced displacement: 80cc
- Actual displacement: 76.52cc
- Power advertised: nc
- Base gasket provides thickness nc
- Recommended squish value nc
- Chamber volume (cylinder head) nc
As an option we offer a stage 1 preparation, this preparation is a modification of the channels and the exhaust port by increasing the diagrams and improving the duct, it increases the performance of the cylinder. An improvement to the piston and the bottom of the skirt is also included in this modification. Allow a little extra time for this preparation!
