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Re: 40+bhp 150cc Vespa Small Frame........

Posted: Tue May 28, 2013 11:37 pm
by drunkmunkey6969
Juan wrote:I'd call shite on those figures although I've no doubt it's an absolute Beast and scarier than a scarey thing at a scarey-fest to ride.
You don't believe the figures? I cannot prove them, but maybe Salvatore will arrive to explain.

On what basis would you doubt them Juan?

Re: 40+bhp 150cc Vespa Small Frame........

Posted: Wed May 29, 2013 10:05 am
by willwander
I have no doubt about them figures at all, there are some very clever tuners with a lot of knowledge and time on their hands now there are no longer two strokes in MotoGP (shame), some of their secrets are starting to come out.

I love the slammed front end look on these sprinters.

Re: 40+bhp 150cc Vespa Small Frame........

Posted: Wed May 29, 2013 10:25 am
by drunkmunkey6969
willwander wrote:I have no doubt about them figures at all, there are some very clever tuners with a lot of knowledge and time on their hands now there are no longer two strokes in MotoGP (shame), some of their secrets are starting to come out.
Yes, I agree. This engine has taken a large amount of inspiration from the Aprilia GP top end, although this is using reed not rotary. I think the GP - RSA125 engines were circa 55bhp, and even the commercially available Aprilia RS125 road bike was circa 33bhp. So I don't see any problem with Salvatore hitting 40bhp using the RSW exhaust cones and such.

Re: 40+bhp 150cc Vespa Small Frame........

Posted: Wed May 29, 2013 12:07 pm
by tony
On the results which one is riding that bike dan? Lauro Caforio won by the look of it.

Re: 40+bhp 150cc Vespa Small Frame........

Posted: Thu May 30, 2013 11:12 am
by soulboy
why cant they do one for t5 :( :( :( :( :( :( :( :(

Re: 40+bhp 150cc Vespa Small Frame........

Posted: Thu May 30, 2013 11:49 am
by shocky
soulboy wrote:why cant they do one for t5 :( :( :( :( :( :( :( :(
what was there reply when you contacted them and asked ?

Re: 40+bhp 150cc Vespa Small Frame........

Posted: Thu May 30, 2013 12:09 pm
by tony
Lauro is doing a t5 based motor but he is remaking the casings as well. The barrel is very nice! It will take some time though as he is a one man band

Re: 40+bhp 150cc Vespa Small Frame........

Posted: Thu May 30, 2013 6:33 pm
by tony
From Scootering mag feb edition.
T5 barrel , bridged exhaust port

Image

Re: 40+bhp 150cc Vespa Small Frame........

Posted: Thu May 30, 2013 10:47 pm
by Juan
drunkmunkey6969 wrote:On what basis would you doubt them Juan?
I'm not saying it doesn't read that on their dyno, nor is it impossible as these are very talented guys but the Continentals us the PS scale rather than BHP. I think it's around 0.9 BHP per PS but you can look it up if it's important, could be a bit north of that but my memory is poor . I'm sure Tony will also remember better than myself but the first big power Quattrini M1LR of a 35 unit production run advertised 32 HP or so but when tested at an admittedly conservative reading UK dyno gave out 24 BHP. Now that's still big power and will go like proverbial s**t off a greased shovel blade and personally I don't care too much for a certain dyno readout over another, if it goes well then fine. A dyno is a tool and only good for comparisons equally on the same day, it's never just the be all and end all especially on different machines and scales.

Re: 40+bhp 150cc Vespa Small Frame........

Posted: Fri May 31, 2013 4:48 pm
by shilloboxer
Agree with juan I have a parmakit that according to the dyno is 18 BHP and a w force water cooled on the same dyno at 30 BHP and feel pretty similar until 7500 revs and then knell the w force is frightening. I have always thought dynos were only really set up tools and the proof is in the actual riding of the machine. I don't doubt the figures but what's it like to ride?