Italjet Dragster 180 project [Update 5/8-08]
Hello everyone Martin here from Sweden, 21 years old.
The bike as it was when i bought it, only thing done was it had got a malossi barrel fitted.
i got myself a pm 59 exhaust bout a year ago
Also got an egt to make it easier to setup the card and to see if its too lean for ex. running on highway (same throttle for a long time).
Hmm whats this i have on my table
Trying out some different reeds and inlets, i am currently running a dellorto phbl 25 carb.
That was summer 2007, time for some porting and projekt in the winter!
The bike now
Splitting the engine.
Nice and clean
I have been calculating some on what crank to get and 55mm will make the ports to extreme for the pm pipe, the pipe is said to give maximum power at around 8500-8800 rpm which means that 185 exhuast and 128 transfer ports will be perfect. With a 54mm crank i will need to go 1mm up on the exhaustport and do nothing to the transferports except lowering them to get more fuel/air into the barrel. Exhaust is also lowerd to make the area bigger.
The new mazza crank
Tool made in a workshop specially for pulling crank into place, makes it easy to achive som bearing play when engine is put together.
Crank in engine
Time to measure port times, Fitted 1mm spacer under barrel with 0,5mm basegasket giving exactly 0,8mm squish.
Matching barrel to engine halves.
Not the final look forgot to take pictures on that actually but this is almost as the finished result.
Also made a mount for an accelerationmeter while engine was apart.
Have put it all together now, started on second kick have just had it idleing some will update a little later with some more pictures and maybe a little testride.
Will also have it repainted in dark greymetallic
Finally i get motivated to update this thread
As i said new colour will be and has now been applied and the results turned out to be awesome!
A bigger carb and reeds from a kawasaki kx85 has been added and my only comment is scrap your dellortos this carb is so much better, now it wheelies all the time
just on throttle pull!
Also moved the gauges to a more viewable place
Hello everyone Martin here from Sweden, 21 years old.
The bike as it was when i bought it, only thing done was it had got a malossi barrel fitted.
i got myself a pm 59 exhaust bout a year ago
Also got an egt to make it easier to setup the card and to see if its too lean for ex. running on highway (same throttle for a long time).
Hmm whats this i have on my table
Trying out some different reeds and inlets, i am currently running a dellorto phbl 25 carb.
That was summer 2007, time for some porting and projekt in the winter!
The bike now
Splitting the engine.
Nice and clean
I have been calculating some on what crank to get and 55mm will make the ports to extreme for the pm pipe, the pipe is said to give maximum power at around 8500-8800 rpm which means that 185 exhuast and 128 transfer ports will be perfect. With a 54mm crank i will need to go 1mm up on the exhaustport and do nothing to the transferports except lowering them to get more fuel/air into the barrel. Exhaust is also lowerd to make the area bigger.
The new mazza crank
Tool made in a workshop specially for pulling crank into place, makes it easy to achive som bearing play when engine is put together.
Crank in engine
Time to measure port times, Fitted 1mm spacer under barrel with 0,5mm basegasket giving exactly 0,8mm squish.
Matching barrel to engine halves.
Not the final look forgot to take pictures on that actually but this is almost as the finished result.
Also made a mount for an accelerationmeter while engine was apart.
Have put it all together now, started on second kick have just had it idleing some will update a little later with some more pictures and maybe a little testride.
Will also have it repainted in dark greymetallic
Finally i get motivated to update this thread
As i said new colour will be and has now been applied and the results turned out to be awesome!
A bigger carb and reeds from a kawasaki kx85 has been added and my only comment is scrap your dellortos this carb is so much better, now it wheelies all the time
just on throttle pull!
Also moved the gauges to a more viewable place
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