Puch cylinder kit summary

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Revision as of 20:49, 27 December 2007 by Mijunkin (talk | contribs) (added Category:Puch)
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This is a summary of all known Puch (Maxi) cylinders. This information is as-is and not guaranteed to be correct.

Puch 50cc Stock old model (38mm)

Stock Puch cylinder with open ports.


Cil1-resize.jpg Cil2-resize.jpg


Distinguishing marks:

Small, unconnected cooling fins

Open ports

Rectangular intake


+ Reliable

+ Wear-proof

- Discontinued


Aluminium with chromed wall

Intakeport: oval

Ports: 2

Exhaustport: oval


Special points of interest:

Open ports.

16mm carb fits without modifying.

Revs higher than the closed ports version.

Less torque than the closed ports version.


Puch 50cc Stock new model (38mm)

Stock Puch cylinder with closed ports.


Distinguishing marks:

Bigger, connected cooling fins

Round intake


+ Reliable

- Discontinued


Cast-iron

Intakeport: oval

Ports: 2

Exhaustport: oval


Special points of interest:

More torque than open ports version.

Revs less high than open ports version.


Airsal 50cc (as stock) (38mm)

Replacement cylinder for stock Puch cylinders. Has closed ports.


Cil3-resize.jpg Cil4-resize.jpg


Distinguishing marks:

Bigger cooling fins than stock cylinders with open ports.

In contrary to the fast 50cc Airsal, no logo.


+ Reliable

+ Cheap

- Rattles somewhat

- Poorly finished


Aluminium with nicasil wall

Intakeport: oval

Ports: 2

Exhaustport: oval


Special points of interest:

Finishing the edges of the ports is recommended.

Zeta 50cc (fast) (38mm)

Cil5-resize.jpg Cil6-resize.jpg Cil7-resize.jpg


+ Accelerates faster than stock Puch cylinders

+ Has a higher top speed than stock Puch cylinders

+/- Powerband comes higher than stock Puch cylinders

- 4 ports


Cast-iron

Intakeport: oval

Ports (128º): 2

Exhaustport (159º): oval

Blowdown: 15,5


Special points of interest:

Nice cylinder to replace stock Puch cylinder.


Airsal 50cc (fast) (38mm)

Many say: Best fast 50cc.


Cil8-resize.jpg Cil9-resize.jpg Cil10-resize.jpg


Distinguishing marks:

Round logo on upper-left cooling fin

Cooling fins like the closed ports Puch cylinder, but not connected to each-other.


+ Reliable

- Sometimes poorly finished

- 4 ports


Aluminium with nicasil wall

Intakeport: oval

Ports: 2

Exhaustport: oval


Special points of interest:

Good timing and most of the times the fnish on the ports is good.

50cc TCCD / RGD (fast) (38mm)

Very fast 50cc.


Cil11-resize.jpg Cil12-resize.jpg


+ Fast

+ 6 ports

- Poor piston


Aluminium with nicasil wall

Intakeport: oval

Ports (114º): 4

Exhaustport (164º): oval

Blowdown: 25


Metrakit 50cc (38mm)

Fast 50cc.


Cil13-resize.jpg


+ Fast

- Expensive


Distinguishing marks:

Big black cooling fins with unique shape


Cast-iron

Intakeport: oval

Ports (?º): 4

Exhaustport (?º): oval

Blowdown: ?


Special points of interest:

Big intake that can handle an 18mm carb


Eurocilindro/Athena AJH 50cc (38mm)

VERY fast 50cc reed-valve kit


Cil14-resize.jpg Cil15-resize.jpg Cil16-resize.jpg


Distinguishing marks:

Big reed-valve intake


+ Wear-proof

+ VERY fast

+ Reed-valve intake

+ Fits a big carb

- Pistons are hard to get


Aluminium with chrome wall

Intakeport (variable): Raised intake as booster-port

Ports (121º): 4 main ports + 1 booster-port (114º)

Exhaustport (175º): oval

Blowdown: 27


Special points of interest:

Reed-valve intake

Pulls hard & has high topspeed.

Reaches 12.000 RPM unmodified.

Comes with a 2-valve reed-valve, but takes a 4-valve Honda reed-valve with a simple riser & Honda intake.


Autisa 60cc (42mm)

Cil17-resize.jpg Cil18-resize.jpg Cil19-resize.jpg Cil20-resize.jpg


Aluminium with nicasil wall

Intakeport (110º): Oval with half bar in the top

Ports (128º): 2

Exhaustport (158º): oval

Blowdown: 15


Special points of interest:

Pretty rare cylinder

Half bar in the intake.


Malossi 60cc (42mm)

Cil21-resize.jpg Cil22-resize.jpg Cil23-resize.jpg


+ Pretty quick for a 60cc

- Exhaustport is hard to modify


Aluminium with nicasil wall

Intakeport (122º): oval

Ports (110º): 2

Exhaustport (159º): oval

Blowdown: 24,5

Boostports (90º): 2

Diameter exhaustport: 25mm


Special points of interest:

Piston-ring-gap goes between the exhaustport & intakeport.


Metrakit 65cc (43,5mm)

Good torque cylinder. Pulls well at every RPM.


Cil24-resize.jpg Cil25-resize.jpg Cil26-resize.jpg


Distinguishing marks:

Black cooling fins

Last cooling fins have a sloped edge


+ Very good pull from low RPM

- 4 ports


Cast-iron

Intakeport: oval

Ports (114º): 2

Exhaustport (153º): oval

Blowdown: 19,5


Special points of interest:

Round intake that is large enough for a 20mm carb.


Airsal 65cc (44 mm)

Nice cylinder with pretty good pull and nice top speed.


Cil27-resize.jpg Cil28-resize.jpg Cil29-resize.jpg


Distinguishing marks:

Round logo on cooling fin


+ Cheap

+ Reliable

- Poorly finished

- 4 ports


Aluminium with nicasil wall

Intakeport: oval

Ports (114º): 2

Exhaustport (164º): oval

Blowdown: 25


Special points of interest:

Finishing the edges of the ports is recommended.


Polini 65cc (43,5mm)

Fast reed-valve kit. Ideal for high top speed.


Cil30-resize.jpg Cil31-resize.jpg Cil32-resize.jpg Cil33-resize.jpg


Distinguishing marks:

Reed-valve intake

Unique intake


+ 7 ports

+ Good finish

+ Reed-valve

- Expensive as hell

- Pistons are expensive too

- Needs very good carb tuning and oil-mixture


Aluminium with chroom wall (old models)

Aluminium with nicasil wall (new models)

Intakeport (variable): 7 including 3 boosters (114º)

Ports (114º): 4 ports + 3 boosters

Exhaustport (164º): oval

Blowdown: 25


Special points of interest:

Reed-valve intake

Very seize sensitive. Needs perfect mixture to run well.


Parmakit/Zeta 70cc (45mm)

Discontinued


Cil34-resize.jpg Cil35-resize.jpg


Distinguishing marks:

Boosterport that goes into the intake


+ Reliable

+ Wear-proof

- Discontinued

- 4 ports

- Intake is hard to modify, the boosterport gets in your way

- Foot-gasket thickness comes very close. The boosterport in the piston might be in front of the intake, so it doesn't run.


Cast-iron

Intakeport: Square, U-shape

Ports (114º): 4

Exhaustport (164º): Oval

Blowdown: 25


Special points of interest:

Speciae boostport.


Airsal 70cc (45mm)

Very nice cylinder. A lot of people say: The perfectly timed cylinder.


Cil36-resize.jpg Cil37-resize.jpg Cil38-resize.jpg


Distinguishing marks:

Round logo on cooling fin


+ Cheap

+ Reliable

+ Well timed

- Rattles

- 4 ports

- Poorly finished


Aluminium with nicasil wall

Intakeport (138º): oval

Ports (114º): 2

Exhaustport (170º): oval

Blowdown: 28

Boostports (114º): 2


Special points of interest:

Finishing the edges of the ports is recommended.


RGD/TCCD 70cc (45mm)

Almost the same as Airsal 70cc. Some say that the old TCCD was made of better materials than the new RGD.


Cil39-resize.jpg Cil40-resize.jpg Cil41-resize.jpg


+ Cheap

+ Well timed

+ 6 ports


Aluminium with nicasil wall

Intakeport (127º): oval

Ports (121º): 4

Exhaustport (164º): oval

Blowdown: 21,5

Boostports (114º): 2

K-star 70cc (45mm)

Good cylinder with good torque. Can be very fast with modifying.


Cil42-resize.jpg


Distinguishing marks:

Dark grey cooling fins

K-Star logo on cooling fin (Upside down when installed. Morons :P)


+ Cheap

+ 6 ports

- Poorly finished


Aluminium with nicasil wall

Intakeport (138º): oval

Ports (114º): 4

Exhaustport (153º): oval

Blowdown: 19,5

Boostports (107º): 2


Special points of interest:

Good tuning material

Good piston & rings.


Polini 70cc (45mm)

Very fast 70cc cylinder. Sadly discontinued.


Cil43-resize.jpg Cil44-resize.jpg Cil45-resize.jpg Cil46-resize.jpg


Distinguishing marks:

Special port-shape


+ VERY fast

+ 6 portd

- Discontinued


Aluminium with chrome wall

Inltakeport: oval

Ports (105º): 4

Exhaustport (175º): oval

Blowdown: 35

Boostports: 2


Special points of interest:

Good quality chrome wall

Discontinued


Eurocilindro/Athena 70cc (45mm)

Fast 70cc.


Cil47-resize.jpg Cil48-resize.jpg


Distinguishing marks:

Eurocilindro on bottom cooling fin (Only on Eurocilindro, not Athena)


+ Wear-proof

+ Good torque

- Pretty expensive


Aluminium with nicasil wall

Intakeport (140º): oval

Ports (105º): 4

Exhaustport (160º): oval

Blowdown: 27,5

Boostports (90º): 2


Special points of interest:

Better piston than in the reed-valve kit.

Eurocilindro/Athena 70cc (45mm)

Fast 70cc reed-valve kit.


Cil49-resize.jpg Cil50-resize.jpg Cil51-resize.jpg Cil52-resize.jpg


Distinguishing marks:

Reed-valve intake

Unique intake


+ Very fast

+ Good torque

+ 6 ports

- Wrong piston comes with the kit

- Metal reed-valves break easily. Recommended that you replace them by carbon valves.


Aluminium with nicasil wall

Intakeport (variable): Raised intake as booster-port

Ports (122,75º): 4 ports + 1 wide booster

Exhaustport (165º): Oval

Blowdown: 21


Eurocilindro/Athena AJH 70cc (45mm)

Fast 70cc reed-valve kit.


Cil53-resize.jpg Cil54-resize.jpg


Distinguishing marks:

Big reed-valve intake

Unique intake


+ Wear-proof

+ Fast

+ Reed-valve

+ Intake large enough for a big carb

- Piston is very sensitive at the ring-gap. A good replacement is a 70cc Polini piston for Honda MT5/MB5


Aluminium with nicasil wall

Intake (variabel): Raised intake as boosterport

Ports (128º): 4 ports + 1 wide raised booster (107º)

Exhaustport (165º): oval

Blowdown: 18,5


Special points of interest:

Reed-valve intake.

Poor piston.

Comes with a 2-valve reed-valve, but takes a 4-valve Honda reed-valve with a simple riser & Honda intake.


Airsal 72cc (46mm)

New Airsal cylinder. Biggest displacement you can fit on a Puch without modifying the crank-case.


Cil55-resize.jpg Cil56-resize.jpg


+ Big displacement without modifying crank-case

+ Comes with HC head


Aluminium with nicasil wall

Intakeport: oval

Ports (128º): 4

Exhaustport (175º): oval

Blowdown: 23,5


Special points of interest:

Round intake that fits a 20mm carb

Available with a straight and angled exhaustport


Parmakit 75cc (47mm)

New cylinder with a LOT of tuning-potential


Cil57-resize.jpg Cil58-resize.jpg Cil59-resize.jpg Cil60-resize.jpg


Distinguishing marks:

Butterfly intake & exhaust port.


+ Butterfly intakeport

+ Butterfly exhaustport

+ Lots of torque because of the butterfly ports

- 4 ports

- Comes without a head


Aluminium with nicasil wall

Intakeport (132º): Butterfly port

Ports (132º): 2

Exhaustport (170,5º): Butterfly port

Blowdown: 19,25

Boostports: 1


Special points of interest:

Angled exhaustport.

Crank-case needs mod-work to fit cylinder.


Eurokit 75cc (47mm)

Cil61-resize.jpg Cil62-resize.jpg Cil63-resize.jpg


Distinguishing marks:

Extra ports in the cylinder wall.

Angled exhaustport.


+ 8 ports

- Discontinued


Aluminium with nicasil wall

Intakeport: Oval

Ports: 4

Exhaustport: Oval

Boostports: 2


Special points of interest:

Special boostports.

Angled exhaustport.

Crank-case needs mod-work to fit cylinder.


Gilardoni 75cc (47mm) (Reed-valve)

Cil64-resize.jpg Cil65-resize.jpg Cil66-resize.jpg Cil67-resize.jpg


Distinguishing marks:

Reed-valve

Square cooling ribs


+ Reed-valve

+ Fast 75cc kit

- Piston doesn't have the pin in the centre


Aluminium with nicasil wall

Intakeport (variable): 1 booster (119º)

Ports (123º): 4 ports + 1 booster (119º)

Exhaustport (178º) : Oval

Blowdown: 27,5


Special points of interest:

Minarelli Vertical intake fits without modification.

Minarelli AM6 (Aprilia, Rieju, newer Derbi's etc.) reed-valve fits without modification.

A lot of people say that you have to replace the piston by a Metrakit of Airsal piston, because the original piston isn't suitable for right-turning engines because of the un-centered piston-pin.

Angled exhaustport.

Crank-case needs mod-work to fit cylinder.


Metrakit 75cc (47mm)

Cil68-resize.jpg Cil69-resize.jpg Cil70-resize.jpg


Distinguishing marks:

Big black cooling fins with unique shape


+ Torque cylinder


Cast-iron

Intakeport (153º): Oval

Ports (121º): 4

Exhaustport (175º): Oval

Blowdown: 27


Special points of interest:

Angled exhaustport.

Crank-case needs mod-work to fit cylinder.

When fitting this cylinder you should mind the piston-rings. They come out of the intake, you need to push them back before sliding the piston further in.


Zeta 75cc (47mm)

Not much known.

Has a bad aluminium with nicasil wall.


Translated by SchijnHeilig

Original from PuchForum.net