Mugello Cylinder Kits

The Mugello evolves again the new CL3 Mugello kits feature a new cylinder head, which has been specially designed specially for the Lambretta Mugello, Imola and Monza kits. These new heads are supplied with the kits as standard, so there is no need for any further tuning or modifications.

The new cylinder heads are designed to run on low octane fuel
The narrow squish band width allows closer head to piston clearance for the best MSV ratio (maximum squish velocity).
Two versions are available for each kit one standard, one for higher performance. The standard head would suit a standard cylinder using a box pipe or bolt on power pipes. Those those wanting a high performance head already altered for use with tuned / modified kit, with a power pipe, using 98 oct fuel, more retarded ignition larger carbs etc
The new heads have a computer designed MSV at specific rpm peak for port timings.
The heads have been re cast for better heat dissipation with finned area, more central mass to stop head warpage.
Side plug head design has been retained for ease of use on the Lambretta, but the central combustion chamber gives better combustion process over offset standard design
Narrow squish band design helps stop detonation and over heating of piston crown
The narrow squish and low MSV ratio design is excellent for sustained higher rpm running of tuned engines.
The cylinder head casting design also allows for centre plug machining should you wish, although this is for special order only.
The all new cylinder heads are CNC machined, so the new design is replicated each time every time.
The new cylinder heads also have some new forward thinking in them, allowing the next generation of Imola, Mugello, Monza and new high powered kit currently under test, to have extra bolt down design, which should completely eliminate the possibility in the leaking of gasket surfaces.

The Mugello cylinder kits are an alloy cylinder kit, Nicasil lined, with a piston from the Imola family of kits, with its proven quality and performance. The kits come complete with cylinder, piston, gudgeon pin, circlips, studs, nuts, washers and gaskets. For the small block engines of 125, 150 and 175cc, there is a 186cc version (64*58) and 200 version (64*62). For the larger 200 engine cases, the Mugello is available in 200 (66*58) and 225 (70*58).
Performance is as expected dependant on the set up you use, the beauty of the Mugello range is that they have been designed for both performance and reliability. You can use any thing from a standard 18mm SH carb as fitted on many Lambrettas, right up to much larger carburettors such as 26/28 & 30mm. Because the Mugello retains the traditional family of port layouts as seen on more conventional Lambretta cylinders, the choice of exhausts is equally large. Standard exhausts, to fully blown performance systems can all be fitted.
Where the Mugello differs from almost all other cylinder kits currently on the market, is its construction is entirely of alloy. Along with a light weight piston, the Mugello gives a smooth and comfortable ride, balanced with reliability due to the similarities of expansion and contacting of the cylinder and piston.
From the start the Mugello was looked at in terms of what could be offered to the customer, in the end we believe along with the manufacturer we have developed a perfect cylinder kit.
In standard format the Mugello cylinder retains all original looks for your Lambretta, whilst on the other hand giving you modern performance. From a standard set up you can expect from 10 to 12bhp at the rear wheel (remember factory figures are at the flywheel). By adding a performance exhaust, you could even achieve figures of 15+ bhp.
With other modifications from 12 to 20 bhp is easily possible. Because the cylinder can be used for all carburettor types down to 18mm, should you wish to gain even more performance this is very easy to achieve. The flow of the inlet can be opened up to its full potential, then along with the large transfer ports and exhaust port, performance from your Lambretta then becomes exciting!


	Mugello or Imola quick facts! We often get asked which kit should I go for, in short the Imola can give from 17 to 22 bhp at the rear wheel, it is reed valve induction, the carburettor exits on the opposite side to standard and cannot run an air filter due to panel clearance (you possibly can on S1/2 machines) The Imola works best with an expansion type exhaust, 30mm carburettor, and is primarily designed to be a very quick and quite revvy kit. The Mugello is more like a standard cylinder, but with vastly improved porting, quality and reliability . The kit is equally happy to be run with standard carb and exhausts, giving a bit more performance over standard set ups. Equally bolt on a larger carb and exhaust, and the kit will start to perform. With standard carbs and exhausts, you can happily keep the airbox intake system, although of course modifying it will allow more performance.


	Mugello - always evolving As with all Imola/Mugello products they are under constant scrutineey, to push the boundaries of the kit, whilst still retaining the quality and reliability. Ever since the first Imola cylinder kits were launched in the year 2000 rather then standing still we have continued to develop and improve the performance of the kits. The latest development of these two kits feature improved transfer porting, increasing torque, whilst reducing fuel consumption. A new cylinder head with a central combustion chamber for increased performance, with a narrow squish band which allows higher compression ratios to be run safer. The dowls ensure correct clearance across the top of the whole of the piston, elivating the possibility of detonation. Matching laser cut gaskets are supplied in various thickness to perfect the squish clearance on individual set ups. The Mugello cylinder now features a third boost port.

Li 150 Mugello

We are always inundated with e-mails and questions re-garding the Imola, Monza and Mugello kits, so we have re created some of the most popular questions we get asked below.

Answers to some questions
How much is the kit?	We suggest you visit our on-line shop for the latest prices and specifications, as we like to try and keep prices as low as possible, and with exchange rates and shipping costs, this can change, where as the shopping system is always kept up to date!
What comes in the kit	Alloy cylinder, piston, cylinder head, cylinder to head dowl pins, gudgeon pin, circlips, piston rings, exhaust studs, nuts, washers and a gasket set for the cylinder. Optional extras are inlet manifolds for SH and PHBH Dell'Ortos, full tuning, carburettors, exhausts, timing systems, please visit our inline shop for more details of these.
Can you fit and set up this kit to my scooter?	Yes no problem, the only thing we specify is that we will only carry out this work with a full engine rebuild. This is so that we know your engine will cope with the power the Mugello cylinder will put through it. We will dismantle, clean, check overhaul, repair or replace (where needed) every single part in your engine, to give you peace of mind. Cost is always a difficult one to discuss, as we cannot see inside your engine. On an "average" rebuild with the Mugello cylinder, we would probably expect to replace the, crank, ignition system to Varitronic, uprated clutch, new bearings, oil seals, gear selector, and other parts.
What do I need to do to my engine?	Well as with ANY performance upgrade, whether a simple increase in cc, or a fully blown tune, the rest of your engine should be in excellent condition. With all due respect, 99% of people buy a Lambretta to ride and enjoy it, in any guide a Lambretta should be properly maintained to give reliable service. We would recommend that the crankshaft, bearings and clutch should be either in excellent condition or upgraded. Most factory figures for 125 and 150cc Lambrettas are around 5 to 7 bhp, remembering the factory figures where at the flywheel. With the Mugello easily capable of reaching double and more of this output at the rear wheel, you can see why we mention this. Also recommended is the addition of an electronic ignition system, such as the Varitronic.
Will this run through an air box?	Short answer is yes, but there is a more detailed answer! It really depends on carb, and what you want from the kit. Whilst we can make the largest PHBH carb run through the airbox, in reality there is little point. If you want to keep your standard looks, then the PHBH is not for you, if you want the best performance from your kit, then it is the carb for you! How ever you can loose around 1 to 3 hp by going through the restrictive air box, but its your choice!
Performance?	The 186cc kit easily out performs 175 stage fours kits, as well as many 200cc engines! Cruising speed is roughly 60 to 65, depending on spec and set up, top speed can be from 65 to 80. Of course power and top speed are so limited by choice of carburettor, exhaust, gearing and many other factors. We are happy the 186 kit will out perform any 175 stage four kit on the market, and is faster then 200cc scooters, making more power as well. The 200cc versions will be in comparison with a full stage four 200 kit, but have the advantage of the alloy cylinder, the 225 version provide more torque as well as power.
What carb can I use?	These kits will accept any standard Lambretta manifold, allowing the use of standard Dell'Orto / Jetex / Space SH type carbs of 18mm, 20mm and 22mm in size. For the use of larger 26, 28 and 30mm Dell'Orto carbs you would need the Mugello manifold. To release the full potential of these larger carburettor and manifold set ups, we would recommend further tuning. If you have an existing manifold and large carb set, lets say for example on a 175 kit, these will fit the new Mugello cylinders. We currently have seen good results with the 26mm & 28mm.
What jetting is needed	Jetting is affected by so many things, carb, exhaust etc, so it is hard for us to write you a table of jets needed. More details can be found in our Mugello fitting instructions.
What exhaust can I use	Any Lambretta exhaust, from a clubman/big bore or Ancillotti, up to any expansion chamber for standard machines on the market. Of course some work better then others, some a good for touring, some for high performance, others well lets just say price! We do not offer advice on other manufacturers exhausts, please consult them for more details. Having tried just about ALL exhausts on the market, we sell and recommend the following :- General use / touring standard looks, Ancillotti. General use / touring, expansion JL3 Racing around and most power, JL4
I currently have exhaust X and Carb Y, will it work?	The short answer is yes, if it worked on a standard or tuned Lambretta cylinder it can be used with the Mugello. Of course carburettors may need to be re jetted, but other then this fine.
Tuning	We do offer further tuning on all the Mugello kit. We especially recommend this where large carbs and exhausts are used, or you want to achieve the maximum performance from the kit, as well as its reliability. Current cost for tuning the Mugello cylinders are as follows Fast road tune £55.00 Improve inlet for larger carbs, includes matching your chosen manifold. £20.00 Improvements to exhaust port timings £15.00. If these modifications are carried out at the same time, we have a package price of £85.00
Other Questions	Will be included in our comprehensive instructions, other wise feel free to ask!