Hi,
My name is Karsten and this forum is new for me. Perhaps, I am posting in the wrong part but as I do racing with the little Guzzis I think it may be OK.
My wife, a friend of mine and me are racing with old V75 (started with V50), totally stripped for trac use. We had to do a lot of improvements just to get these little engines working and stable (valves, rocker screws, oil cooler) and the suspension doing what it should do, better braking and so on.
In our free time, we are organizing non-commercial trac days just for Guzzis and MZ (http://guzzi-mz-training.info) but that is just a (the) hobby.
Actually I try to improve the max. power of our engines because my wife Claudia needs more power. She don't want to be overtaken again after being faster in curves and braking better and then, on the next lane......
The little 2V-engines with the heron pistons are tricky. There is no possibility to increase the vale sizes a lot, so we have opened the channels (right word?) for the use of 34 mm carbs, we are using better cam shafts, higher compression, LM1-style (and weight) manifolds. The current power is somewhat in the area 55 to 60 hp at the clutch (the original V65 has 44 hp, a V50/3 has 37 hp measured) but in our racing class we have always the weakest engines (compared to DUC 750, Honda VF500F with about 70 hp). So, I will change the exhausts and open the channels a little bit more. In an other test bike I'll try the Lario engine (4V) with different valves (not larger but hopefully more reliable). I hope it'll work so that I can build a second engine.
so far....
Have nice holidays.
Karsten
My name is Karsten and this forum is new for me. Perhaps, I am posting in the wrong part but as I do racing with the little Guzzis I think it may be OK.
My wife, a friend of mine and me are racing with old V75 (started with V50), totally stripped for trac use. We had to do a lot of improvements just to get these little engines working and stable (valves, rocker screws, oil cooler) and the suspension doing what it should do, better braking and so on.
In our free time, we are organizing non-commercial trac days just for Guzzis and MZ (http://guzzi-mz-training.info) but that is just a (the) hobby.
Actually I try to improve the max. power of our engines because my wife Claudia needs more power. She don't want to be overtaken again after being faster in curves and braking better and then, on the next lane......
The little 2V-engines with the heron pistons are tricky. There is no possibility to increase the vale sizes a lot, so we have opened the channels (right word?) for the use of 34 mm carbs, we are using better cam shafts, higher compression, LM1-style (and weight) manifolds. The current power is somewhat in the area 55 to 60 hp at the clutch (the original V65 has 44 hp, a V50/3 has 37 hp measured) but in our racing class we have always the weakest engines (compared to DUC 750, Honda VF500F with about 70 hp). So, I will change the exhausts and open the channels a little bit more. In an other test bike I'll try the Lario engine (4V) with different valves (not larger but hopefully more reliable). I hope it'll work so that I can build a second engine.
so far....
Have nice holidays.
Karsten