OzOAP

I have a 213 twin carb with 60mm crankshaft. I set mine on a dyno. It ended up at 20 deg. The Pinasco kits came with two different cylinder heads. 30cc and 34cc. I used the 34cc

A member of my scooter club makes these. http://www.scootertrumps.co.uk/

http://www.germanscooterforum.de/index.php?showtopic=97181

Hiya

This is one of my bikes

Its a German site. I can translate. Well my computer can. I think is it more the gears/shafts trying to 'push' each other apart, rather than the shaft bending. You cannot stop this happening, so the only thing to do is strengthen the casing to stop it cracking Sein ein deutscher Aufstellungsort. Ich kann übersetzen. Quellen meine Computerdose hervor. Ich denke bin es mehr die Zahnräder/die Wellen, die versuchen, ?auseinander zu drücken?, anstatt, das Welle Verbiegen. Du kannst nicht dieses Geschehen stoppen, also ist die einzige Sache zum zu tun, das Gehäuse zu verstärken, um es zu stoppen knackend How is the translation??

Anymore thoughts on why casings crack?????

Something like this through a modified clutch cover Lucifer, I have not used the extra bolts to strengthen the clutch cover. They are there to hopefully hold together the main casing at the weak point. Anyone on here own this one???

I have cracked two casings before building the third Malossi engine with the extra bolts, It has been ok for longer than the other two. I dont know why they crack. Dropping the clutch? jumping in/out of gear? to much power for an old Italian shopping bike engine? I thought it was the side loading on a standard helical primary drive, pushing the laygear, but a mate of mine has broken casings using straight cut primarys Hopefully the extra bolts will 'hold' the casing together at the weak point. I dont fancy doing another set if the TS one go (

Since adding the two extra bolts on another one of my casings, I have not had any cracking problems.........yet

My success with the ladies gets better, as I get richer Ive had a few cars/engines featured in magazines over the years. Its good advertising. My engines have won the Mighty Mini, Super Mighty Mini, and 3 Historic Rally Championships this year, so it looks like a busy winter with a few new customers. Ive got a couple more Vespa projects to do. Hope work does not get in the way I will be dynoing the TS when I have sorted out another couple of carburettors to try. I have 3 types of reed block, (Yam with std reeds, dual stage Boyesons and a V-Force 3), and a 32 and 34mm VHSB carbs, but want to try a 30mm and a 35 Mikuni aswell. I have broken a few casings with 210's, so Ive used two extra bolts in the clutch cover, to hopefully hold things together

Another one. Any more?????

I do all the work myself apart from making the exhaust, I gave PM Tuning the port timing, bore, stroke, con-rod length, ect, and told them what I wanted it to look like. I am reasonably successfull with the ladies. My favourite colour is Blue. I have been involved in Motorsport for 25 years, Saloon cars, Rallycross, Rallying, and run a company, OAP Race Engines. Scootering is more of a hobby. I dont do much work for other scooterists. Most of them wont spend the money. I dont come on this forum very often, I prefer Et3.it. There seams to be a lot of people on here that are 'up their own arse' Im not interested in "its been done before" "why not fit a moto x cylinder?" "its a waste of a T5 casing" I have enough Elitist tossers over here in England..... Lambretta riders :grins: It, (PTS1E), has been something Ive been wanting to build for a long time, but other projects had taken over. I used a T5 casing because of the larger flyside bearing. It would have been easier using a P2 casing, (the same as others have done), but Ive destroyed a lot of casings with tuned 210s so wanted to try something different. Cheers, Oz

The temp probe is fitted on the down pipe, 150mm from the centre of the exhaust port.

The MyChron data logger reads, revs, water temp, exhaust temp, total running time and lap/run timing. Each run can be played back in 'real time'. It doesn't measure prick size. But you need big bollox to ride it :grins:

With the front and rear sprockets Im running it does 8.1mph (13kph) per 1000revs. On a recent road test for Scootering Magazine it reved to 12360. Thats 100mph (160kph). At 12500 revs the engine hits another power band. Ive just changed the rear sprocket so it will rev higher. If it pulls 13000 revs it will do 105mph (168kph). The rev limit is 14200. It is currently a 125cc. Im building a 154cc engine and modifiying the clutch so it will get off the line quicker. In the video it is pulling about 11000revs, 90mph (144kph).

PALVCD Play it loud!! http://www.scooterboy-world.co.uk/pics/ind...&album=./Videos