• Banner

Maxi kit TOP PERFORMANCES 85cc Cast iron, stroke 44mm + Ø49,5mm (with crankshaft) for mécaboite 50cc minarelli am6 engine
  • Maxi kit TOP PERFORMANCES 85cc Cast iron, stroke 44mm + Ø49,5mm (with crankshaft) for mécaboite 50cc minarelli am6 engine

Maxi kit TOP PERFORMANCES 85cc Cast iron, stroke 44mm + Ø49,5mm (with crankshaft) for mécaboite 50cc minarelli am6 engine

9921450

The cast iron 85cc maxikit with 44mm stroke vilo for 50cc minarelli am6 engine motorcycle, super torquey and super solid! Ideal for endurance.

Engine preparation
€324.99
Quantity
Shipping in 1-3 days

Description

Not homologated on open road, formally reserved for competition.


The TOP PERFORMANCES 85cc maxi kit is an excellent product, not to say the best… According to our customers, it remains a must and the best quality / price / power ratio! We recommend it to pilots who want good power, a lot of torque, excellent top speed and above all maximum solidity without breaking the bank because this pack is really an economy. The cylinder is in MINACROM treated cast iron with normal exhaust which makes it extremely robust, it also has a studded cylinder head with a polished hemispherical chamber which gives it good cooling, the crankshaft (crankshaft) is in extra solid mass and is very well balanced via 4 masses, robust connecting rod with reinforced needle cage (original size for piston pin d.12mm), improved lubrication of the cages, a normal silk and a large ignition side for better recovery, this crankshaft preserves the original connecting rod length which will allow you, if one day you wish, to change the kit for even more performance without too many stalling problems. The bore is 49.5 millimeters, the piston in lightened reinforced alloy is in a very thin mono segment in domed S10 chrome, it is the most efficient cast iron kit, it takes up the base of the Top rose 80cc with studs but with a molded wedge and diagrams revised upwards especially for the increased stroke of 44mm. So 85cc real.



It even contains a key for offset ignition. We recommend it all the same with a complete preparation of the piston for those who want even more power because we can gain a lot of power, the piston which is universal (the same as the Top pink / Top pink with stud) obstructs the delivery gaseous to PMB, is harmful to sweeping and is not sufficiently adapted to the kit for our taste because the race and the PMB change from the Pink Top to the Maxi Top.

We recommend changing the piston every 5,000 km to around 7,000 depending on your driving style! You can rebore in case of tightening and take a higher piston rating which we also have.


A set of C3 bearings with reinforced riveted steel cages is provided in the pack. For those who really want a kit pushed very high, plan several base gaskets to make your squish and a preparation and finish on request.


Technical characteristics
:

stroke: 44mm

bore: 49.5mm

actual displacement: 84.67cc

recommended squish: 0.9 to 0.1 according to preference high revs / torque

exhaust diagram: 191°

admission diagram: 132°

geometric compression ratio: 14.7:1

effective compression ratios: 8:1

recommended ignition advance: 17° (1mm before pmh) *maxi kit to use the supplied key if you have an original ignition, unless you install the TPR variable advance kit, do not install the offset key because this auto box -shift!



Recommended retail price TOP PERFORMANCES 400.02 euros


The pack contains:

-a 44mm long full-stroke mass crankshaft balanced 4 masses in 1 original tang and a large tang (tang=crankshaft axis diameter)

- offset ignition key for the maxi kit

-a reinforced piston d.49.5mm single flat segment

-a reinforced segment end d.49,5mm chrome of the domed S10

-an anti-wear treated piston pin

- a reinforced needle cage

-2 reinforced piston clips in G

-3 instructions in French

-cylinder 5 cast iron transfers with side greasers, d.49.5mm gray normal exhaust integrated riser wedge

- gray cylinder head cover

-Polished aluminum high compression chamber cylinder head stud

-paper base gasket

- complete pack of reinforced seals

- gold cylinder head screws

-exhaust wedge for minarelli euro 2 (small exhaust)

- gift cap or oil according to arrival

-2 riveted C3 steel cage bearings


Recommended with at least
:

Cold racing spark plug (normal B9 for adjustments and break-ins then B10 or W31 in DENSO after break-in/adjustments) / hard clutch springs / racing exhaust / carburation 21 minimum (24mm round bushel for good use) and good settings / sixth gear Z .26 recommended to catch up with the tip at the torque




As an option, we offer you a stage 1 preparation, this preparation is a modification of the exhaust port by increasing the diagrams and improving the duct, it increases the performance of the cylinder. An improvement of the skirt bottoms as well as a shortening / balancing of the piston is also included in this modification. Count a little extra time for this preparation! View of the preparation:

vue piston preparé Maxi kit TOP PERFORMANCES 85cc Fonte, course 44mm + Ø49,5mm (avec vilebrequin) pour mécaboite 50cc moteur minarelli am6

vue echappement preparé Maxi kit TOP PERFORMANCES 85cc Fonte, course 44mm + Ø49,5mm (avec vilebrequin) pour mécaboite 50cc moteur minarelli am6

vue preparation Maxi kit TOP PERFORMANCES 85cc Fonte, course 44mm + Ø49,5mm (avec vilebrequin) pour mécaboite 50cc moteur minarelli am6

Product Details
9921450
1 Item
New product

Data sheet

Recommended ignition advance:
17°(1mm before pmh) *see description
Nombre de transferts d'admission
5 transferts (comme l'origine)
Cylinder head:
A stud (2 parts) hemispherical
Matière
Melting
Recommended squish:
0.9 to 0.1 according to preference high revs / torque
Refroidissement
Liquid
Axis of:
Ø12mm
Lumière d'échappement
Oval
Diameter (Ø):
49.5mm
Exhaust Diagram:
191°
Nombre de segment
Mono-segment (1 segment)
Course
44mm
Cylindrée réelle
84.67cc

Specific References

ean13
9921450
You might also like
8 other products in the same category:

Reference: 9924240

TOP PERFORMANCES RACING (TPR)

Maxi kit TOP PERFORMANCES RACING TPR aluminum 86cc (with crankshaft) minarelli am6

A complete pack with reinforced 44mm long stroke crankshaft, bearing pack, key, aluminum cylinder 5 transfers with large bar exhaust and integrated base wedge, cap in the brand's color... ideal for preparing a high-performance engine.

Price €349.99
Shipping in 8 to 15 days depending on factory arrivals TOP PERFORMANCES
More
Shipping in 8 to 15 days depending on factory arrivals TOP PERFORMANCES

Reference: K.44.848.G14

ITALKIT

Pack ITALKIT Racing 80cc Ø48mm (with crankshaft stroke 44 connecting rod 85mm) for mécaboite driving minarelli am6

A 100% complete racing package for minarelli am6 engine! Special racing 44 with vilo ultra reinforced, kit 80cc Ø48mm exhaust 32mm, bearings celerons, springs of clutch, dowels .... A pack perfectly designed to be assembled together for maximum performance!

Price €333.33
Attention, requires a period of more than 20 days!
More
Attention, requires a period of more than 20 days!

Reference: 10500967

BIDALOT

Pack BIDALOT Racing WR 96cc Ø50mm (with crankshaft stroke 48 connecting rod 95mm) for mécaboite minarelli am6 engine

Ø50mm, huge diagrams, 48mm stroke, 95mm connecting rod, huge exhaust outlet with 4 screws... Everything is as incredible as it is specific on this 96cc kit!

Price €573.33
Variable delay according to BIDALOT factory! May need more than 20 days!
More
Variable delay according to BIDALOT factory! May need more than 20 days!

Reference: K.44.952.G14

ITALKIT

Pack ITALKIT Racing 95cc Ø52mm (with crankshaft stroke 44 connecting rod 85mm and axis 14mm) for mécaboite minarelli am6

A 100% complete competition pack for minarelli am6 engine! Special race 44 with ultra reinforced vilo on 14mm axis, 95cc Ø52mm 32mm exhaust kit, celerons bearings, clutch springs, studs .... A pack perfectly designed to be assembled together for maximum power!

Price €349.99
Shipping in 1-3 days
More
Shipping in 1-3 days