Ducati Sporting Club UK > DesmoDue Race Series > DesmoDue - General Questions and Chat > New regs for 2010

[faith-healer]

Hi Phil...

My old 500/4 SOHC Honda race engine used Kawasaki pistons....

The gudgeon pin holes were 2mm smaller and had to be re-machined and the valve recesses recut 0.5mm deeper, then they were perfect....plus a 1.5 raise in compression. Worked well with the Joy (Isle of Man profile) cam and the close ratio box.

If I remember rightly the dyno-read-out (still got it somewhere) was 71bhp ATBW

So there's always "something" out there, its just a question of satisfying the compliance police

[Fastfasulli]

So all in all 583's are here to stay.....for the forseeable future

[Ghost]

Originally Posted by Fastfasulli

So all in all 583's are here to stay.....for the forseeable future

For me they should be and I would think most others want to race them. I'm getting too old for anything faster anyway.

These suit me fine.

[brummydave]

Originally Posted by Ghost

For me they should be and I would think most others want to race them. I'm getting too old for anything faster anyway.

These suit me fine.

i dont know about anything faster,they still hurt when you come off or get knocked off!!apart from the people in the paddock,the apealing thing to me about dd racing was the regs keeping the racing close ,ie rider skill notpocket money,for my ten pence worth (gone metric now)i would like to propose that more emphasis be put on the horsepower limit than what you actually put on the engine to achieve it,those that like to tinker may find ways of acheiving more usable power range,/delivery but we would still all be limited to say 53 bhp. at the moment we are moving into a scenario that budget racing is becoming expensive ie spend £300 on barrels and pistons or run with a lower bhp,so it doesnt matter what pistons,igniters,timing settings you use but be prepared to spend an agreed amount say twice a year un anounced to have your bike dyno tested,this negates the problems of having to stump up for an appeal ,acusations etc which is damaging to the paddock, after all i am sure dynojet kits,air filters and open pipes (all legal) are far more effective than ignition timing.
now just a quickie on tyres i was one of the infamous four on z rated tyres at castle coombe-for which i apologise but ignorance is no defence !! i have managed to build a monster and recently run it at mallory on 2nd hand h rated tyres and ran 3 seconds quicker than my best race time !! so my thoughts are a fresher engine /setup is far more effective than a miniscule tyre issue,however tyre safety must be paramountand we should be able to rely on manufacturers compliance ,whoever they are,but i do miss the bridgestone /michelin battles of the old moto gp days .anyway i have run out big words now ,and as a novice running around at the back i just enjoy the oprtunity to race ,and at least i aired my unqualified thoughts. cheers phil
ps attaced pick of the new class b 96

[mat2hew]

My £300 ebay second hand engine seems to be o.k. without spending time & money rebuilding. But... it does look like it spent the last 5 years at the bottom of a lake!

they never blow up anyway, do they?

Matt #72