Malossi mhr 210 kit

[225worb]

Is it a 60 mm stroke crank?

Yes it is ,its the serie pro reed version...

[santacama]

http://blog.scooter-center.com/auf-dem- ... si-210mhr/

I know this is, at the end, publicity ..... but like I said, I will be more than happy with 30 HP.

[Jack221]

Santacama, This is pretty impressive power but 8500 rpm on a standard PX200 gearbox is 91 mph ( 145 Km/h ). This is what happens when you go for high peak power, the bottom end is lost. Under 6000 rpm on this one the Germans tested, is not much better than a standard. Have you tried your one yet?

[santacama]

My MHR engine is going to take some time to be ready because we race an old Malossi 210 and the £ and time are limited.
I think 15 HP at around 5500 RPM is ok. We are not going to have that exotic pipe, a RZ MARK II is going to have to do it. Probably they are using a short 4 gear and the test is done in 3 gear.
Sincerely, even being publicity I think it is the truth.

[Jack221]

For racing the long stroke MHR will be fine. On the road for daily use it's not going to make you so happy.

[santacama]

225worb is happy.

I have a Primavera 125 CC with a Pro Cup kit (Quatrini) with 132/186, reeds, Keihin PWK 28 and I am really happy.

[Jack221]

What has a Primevera got to do with the longstroke MHR?

[santacama]

Long intake timing.

[Jack221]

I think you have misunderstood what I am trying to say. Do you actually tune engines or get someone else to do them?
When I said 126 degrees for the main transfer port timing this is for a PX200, with a PX200 gearbox, to be used as a daily road use scooter. Other engines on other gearboxes have totally different limits. The transfer timing has a major affect on the bottom end pull of any 2 stroke. If you don't weigh much, are track racing or have 6 gears it doesnt matter so much

[santacama]

I think you have misunderstood what I am trying to say. Do you actually tune engines or get someone else to do them?
When I said 126 degrees for the main transfer port timing this is for a PX200, with a PX200 gearbox, to be used as a daily road use scooter. Other engines on other gearboxes have totally different limits. The transfer timing has a major affect on the bottom end pull of any 2 stroke. If you don't weigh much, are track racing or have 6 gears it doesnt matter so much

I have a hard time writing in English. I wish we could talk about Vespas personaly, having a beer

Ah!!!! of course I tun engines.