2011 Polini Evolution 70cc/94cc 2T Piaggio/Minarelli LC engines

If you've got the need for speed and desire an out and out race spec engine then how about this - a complete race engine built by the Polini factory...

Each engine has its own unique number and is built to Polini's exacting standards and every engine is dyno tested before being signed off by Polini's technicians. Two formats are available: 2T Piaggio liquid cooled (e.g. Piaggio Zip 50 SP 1996-99 / 50 SP 2001 onwards) or 2T Minarelli horizontal liquid cooled (e.g. Yamaha Aerox 50 / MBK Nitro 50 / Yamaha Jog RR) with a choice of 70cc or 94cc.

PIAGGIO 2T LC

Polini's new 2011 Evolution Piaggio 70cc engine (product code: AD/050.0937) has the same 47.6mm cylinder as well as the same layout as the 94cc big bore kit and is capable of producing between 24 to 25hp. The latest engine carries all the usual goodies along with the new Evolution cylinder (47.6mm), a new crankshaft and the latest ignition system which we already like very much, not forgetting the latest Big Evolution exhaust.

If you're looking for maximum performance then Polini's 94cc Big Evolution engine (product code: AD/050.0938) is capable of producing between 27 and 30hp! Again, not only do you get the very latest high end Polini performance products, you're getting a blue print for speed, an engine put together by expert technicians at Polini.

MINARELLI 2T HORIZONTAL LC

Polini's 70cc Minarelli horizontal liquid cooled engine, like the Piaggio version, is capable of a very impressive 25hp. Not only do you get an extensive list of high end racing parts pre-fitted, the crankcase and cylinder are also ported to Polini's very precise standards to ensure optimum performance. For a full list of all the components fitted to this engine, take a look at our product page: Polini 70cc Big Evolution Minarelli horizontal engine (product code: AD/050.0939).

If you want to go a step further then how about the 94cc Big Evolution engine (product code: AD/050.0940), this is capable of between 27 to 30hp, suffice to say it's a bit of a monster.

The proof is in the pudding as they say and after Pedstop rider Josh Brown's blistering performance in last year's BSSO series we have no doubts about the capabilities of these engines. Anyone interested in purchasing please call us direct on 01226 630020. We can also offer a good discount to anyone interested in using a Polini engine in this year's BSSO series. As usual we're able to offer expert advice and technical support on all Polini products.

Athena performance parts for 2T Minarelli horizontal LC engines

Italian company Athena produce a range of high quality performance parts for a wide range of scooters, too many to list all at once here. If your scooter has a two-stroke Minarelli horizontal liquid cooled engine then the following Athena products are well worth a look at:

Minarelli horizontal liquid cooled engines (e.g. Yamaha Aerox)

Athena HP 70cc cylinder kit

The porting and quality of the Athena HP 70cc aluminium cylinder kit is excellent, it's extremely durable and therefore ideal for road use. Included in the package is a single piston ring, carbon fibre reed petals and a bunch of gaskets. This kit is suitable for all Minarelli horizontal liquid cooled engines.

Product code: AD/072400

Athena HPR Racing 70cc cylinder kit

Like the HP kit from Athena the HPR Racing 70cc cylinder kit is also great quality and very durable. The difference with this kit is that it features a revised port layout and a flat top piston for added power. It's also a higher revving kit and therefore requires a suitable exhaust such as the Yasuni C16 or Doppler RR7. This kit will work with a standard carburettor with a jetting increase but to make the most out of it we recommend fitting a 17.5mm carb or bigger. Included in the kit are carbon fibre reed petals and a bunch of gaskets.

Product code: AD/081100

Athena Platinum drive belt

Athena's Platinum series of drive belts are made in Japan so you can expect the same quality and performance as Polini belts. Made from reinforced Kevlar Athena Platinum drive belts are extremely hard wearing.

Product code: AD/S41PLAT001

Athena unlimited rev CDI unit (for Yamaha flywheels)

Increase your revs! Intended for race use, once fitted this device will remove all the barriers of the standard CDI and allow full control of your scooter's power - unrestricted. Fitment is for models without a catalytic air feed pipe into the original exhaust system.

Product code: AD/CDI01

50cc road tuning suggestions for Peugeot vertical AC engines

In the world of scooter tuning today there's a wide selection of tuning parts available. This may leave you a little confused when choosing the right parts to make your scooter more useable. So, we've put together a few suggestions for parts that can be used reliably if you use your scooter daily on the road

PEUGEOT VERTICAL AIR COOLED ENGINES

For two-stroke Peugeot vertical air cooled engined scooters like the Peugeot Speedfight, Trekker, Vivacity etc. the tuning process should be approached slightly differently due to the engines being a bit awkward to set up.

Cylinder kits: The Polini cast iron 70cc kit gives good bottom end power and will work well with most exhausts. The only other alternative is the Athena HP70 which is an aluminium kit and will produce more power than the Polini.

Exhaust systems: Again the Leo Vince TT is the best budget exhaust in terms of power for money. The Doppler RR7 or the Polini For Race 3 are the best performing exhausts available but at a slightly higher price bracket above £150.

Variators:  The Artek K2 or the Doppler S2BR variators seem to work better on Peugeot engines in our opinion. A contrast spring and three sets of rollers are included so you can play around with the transmission to get your scooter set up correctly.

Carburettors: On Peugeot engines we recommend doing away with the standard inlet and carburettor. Replace the inlet manifold for one that accepts a push fitting for the carb like the Top Racing aluminium inlet manifold. Also replace the reed block for an Enki R2 aluminium reed block then finally  a YSN 17.5mm or Polini 19mm carb.

50cc road tuning suggestions for Minarelli horizontal LC engines

Within the world of scooter tuning today there is a big selection of tuning parts available. This may leave you a little stuck when trying to choose the correct parts that actually make your scooter more useable. So we've put a few suggestions together to help you get the best reliable everyday road performance from a 50cc scooter using reputable parts that work well together. The following list applies to two-stroke 50cc scooters fitted with a Minarelli horizontal liquid cooled engine:

MINARELLI HORIZONTAL LIQUID COOLED ENGINES

For Minarelli horizontal liquid cooled engine scooters such as the Yamaha Aerox, Jog RR, MBK Nitro, Mach G, Malaguti F15 Firefox, Italjet Dragster etc. we recommend the following parts:

Cylinder Kits: The Stage6 Streetrace 70cc kit is a cast iron kit that gives very useable bottom end power which is perfect for whizzing around town or practicing wheelies. Alternatively the Italkit aluminium 70cc kit will provide quite a bit more power but higher up in the rev range, perfect for all you speed freaks.

Exhaust systems: Again the Leo Vince TT is the best budget all round performer. The Tecnigas Trek or Artek K1 will see better power gains and release more of the 70cc kits potential. For anyone using a high revving aluminium road going cylinder then the Yasuni C16 is a must for anyone serious about speed.

Variators: This is the most substantial upgrade for any Minarelli engine as the standard article is very poor. The Polini 6 or Polini 9 roller variator kits are very easy to set up and give very consistent performance. Also the Doppler S2BR works really well on the Minarelli engine as it raises the rollers to 19x15.5 rather than the standard 15x12's.

So far we've mentioned the three main upgrades necessary to up the power of your ped. A carb upgrade and gear kit will further boost performance for anyone who has a larger budget available:

Carburettors: Minarelli engines normally have around an 11.5mm standard carburettor. For everyday use on the road we recommend a 17.5mm carb as it’s still fairly compact so therefore fits into the cramped space it sits. The Polini 17.5mm carburettor is made by Dell'Orto and can be easily set up for the original air box or a sports foam filter.

Gear Kits: Gear kits increase the gear ratios resulting in an increase in top speed. Top Racing 4 part kits come pre-pressed for easy fitting. Polini gear kits have undergone extensive testing to give you the best ratio for use with 70cc cylinder kits.

Genuine Piaggio parts

Great news for all you racers out there! We now stock the original Piaggio Zip air cooled and liquid cooled engine casings. What you get is pretty much a blank canvas which is perfect for building up an engine fit for the track. You can choose to port your fresh new casings for optimum performance or simply bolt a selection of parts straight on and drop it in the scoot. Make a great saving on Piaggio liquid cooled casings at only £205, the retail is supposed to be £436. Whether you’re a racer wanting to lead the pack in next year’s BSSO series or simply looking for replacement casings then be sure to check these out.

Air cooled casing: AD/8264255
Liquid cooled casing: AD/CM1273035

Also currently available are a wider selection of new genuine Piaggio scooter parts - silent blocks, spring clips for body panels, brake cables, gasket sets, the list can go on and on. Yes it’s all those niggly bits that you can never source without ordering from Italy and waiting weeks on end for them to never arrive, but not to worry as here at Adrenalin we're all about making your life easier.