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http://www.iansboats.com/45%20h%201.jpg V5 piston and liner

In fact all the tests at CMB were done in a RS case but the production EVO case even surprised Mauro as to how much better the EVO was Revs were the same as before but prop size 1 or 2 mm larger diameter.

The first tests last year were in a RS case and the engine went very well. But the extra torque came when Mauro put it in the new case with larger diameter liner and reduced transfer volumes in the case. Mauro was actualy excited about the way the engine went in the production case (mauro does...

Allan This is not from CMB.This is a talented french man who has built his own engine with a disc. The new beta will not have a disc even though CMB have tried a disc engine in testing. Ian

Here are pictures of the engines The VAC 21 is the geared version without athe flywheel abd the 45 is the prototype with no writing on the case. http://iansboats.co.uk/VAC21%20geared.jpg http://iansboats.co.uk/VAC%20direct.jpg Ian

The Camillo Special edition I had on my stand at the Stuttgart race has a metal CMB made cage to space the needles out so less needles. They have been making them for a year or so for the 35cc petrol engine and it has improved that engines crankshaft reliability. This plus the piston and liner...

Sad news: Camillo Braghieri Founder of CMB Engines Died last night after loosing his battle with cancer . Our thoughts are with the family at this difficult time.   Ian Folkson

I think you have a Kraft 61 engine which has a large K on the side I had one in the 70's made in the USA I think and I am sure they were made in a marine version. Google it and there are some pictures on the web. Ian

Best Material I have found is with peek with carbon & graphite. I use these straight on the prop nut on a 90 with no problems Ian Folkson

What Dave Marles says is totaly true and his pipes are some of the very best performance pipes made and the quietest as well. I was disqualified with a mono some years ago at a Naviga champs and the boat sounded to the ear quiet but the resonance from the hull and the engine bay being open it...

Naviga will accept an entry from the national federation of a country. If you live and work in another country you can try to qualify for that country as long as you can prove you are living there and the National body of that country is prepared to let you run for them. But you must be able to...

I still have the original eve 2 2 45 sheet from CMB the quality was never very good Ian

early 21 liners Early CMB LIner 3.5 Or Maybe they are coppied from a Mac!!!! Don!!!! ;) Ian

On the valvola's the works drivers use we remove the front bearing seal and spray the bearing with something like wd40 possibly a little heavier after each race. I also remove the motor after each race weekend and check the motor out washing it out with carb cleaner to feel what the bearings are...

I did not race hydros but was in the start box for a few races. The audible signal for the start is delayed so some confusion could stem from that. The strobe flash is what determines when the line shows the start and that is instantly. There should have been a judge on the line to confirm what...

I do not agree about the problems in Norway the boxes AMB make now are much stronger than the old ones. The signal only triggers after the second line is passed and it is true signal strength can be speed dependant but it is the number of hits from the transponder that matters. AMB could not...

The Germans and French and Belgiums have been using the system now for years. The Uk Mpba have been using it for 2 years and after a few minor problems we now would not hold a race without it. The Naviga world champs this year was run completely with the system. I helped get BBk software...

Allen I have one of the ones that radio shack sells . Type in Sound meter and the cheapest one that comes up at $44.99. I have had it since the 80s when I first found out about rubber mounts. I had it calibrated by a calibrater the Model Power boat association bought with a better quality...

Our noise limits are going up slowly and we warned all teams that at the next Naviga we are going to clamp back down on noise. Our chief judge has to be given the noise readings from every first heat at a venue that is new to us so he can decide the limits for each class. He makes allowance for...