RB20 (200cc) - Pictures and Spec

[drunkmunkey6969]

Aye, true. I just have all on finding the time to get the tuned version finished, never mind a standard version to compare...and then various crank configs etc..........ball ache city!

[Supereibar]

I really appreciate you boys showing us all of this with the care and detail that only a true passionated maniac could show. Really, thanks for this.

Cheers,

Jaime

P.S I love these threads, you learn so much in so little time. Specially if you are a total dumbarse like me

[RICSPEED]

surely rayspeed have a bhp figure for out of the box allready ?

[Hillt68]

Yeah I'm sure I read somewhere it's 22BHP
twice that of a standard 200 lump, or did I dream that..?

[Ian Hepworth]

surely rayspeed have a bhp figure for out of the box allready ?

Like the graphs for the RB22 that had no numbers on the horizontal or vertical scales.

Nice shaped curve but is peak power 3hp or 300hp!?

[Powolotti]

I also don´t have a dyno graph yet, but after measuring port timings and shapes and angles of transfers I would say it is one of the best aftermarket tuning kits off the shelf. Timings on my kit are a bit lower then Dan stated.
A completely unmodified kit should show between 22 and 25 bhp (backwheel), it will work nice with exhausts peaking around 7000 rpm, but I still think it will do a nice tourer with a 30mm Mikuni and a JL/Franspeed road pipe.

When you raise the blowdown area the kit should really rock..watch out for my cutdown on Eurolammy

[Special X]

Anyone know if a 58mm MEC race crank could be split and uprated to suit this new RB20 kit?
Cheers Nick

Best crank to use. Harry Barlow always uses MEC webs as they are much tighter than others. With top class bearing and rod they are the dogs.

[GP Kevo]

The three fingered boost porting on the intake looks much like my triple boost port steel lined TS1 that MB did for me ages past. No Boyesen ports on that, though.

[stew]

So a year after this kit has been released what's everyones thoughts RB or Imola? What spec are people running if it's the RB20?

[joespeed]

surely rayspeed have a bhp figure for out of the box allready ?

Like the graphs for the RB22 that had no numbers on the horizontal or vertical scales.

Nice shaped curve but is peak power 3hp or 300hp!?

if you give hp figures out and it dont reach it your in bother!
it also creats 'pub talk' which leads to fights,'mines better than yours,no it int.bang!
small engines easy go off tune some are better than others it is better to not state big hp imo!
regards
joe.
ps.i've only got a lttle one but it still needs a big clutch!