Search found 298 matches

by davidblythe
Sun Jan 31, 2010 11:56 am
Forum: Lambretta Tech
Topic: £5 Prize to guess top speed on an RT 250
Replies: 51
Views: 4916

Re: £5 Prize to guess top speed on an RT 250

eden wrote:gps speed? 78mph if Darrel is riding it 82.6mph if someone more slender is riding it :frog:

speedo speed 130mph lol

cruel but fair :lol:

DaveH will be test crash dummy, a wee bit lighter than Barrell

No snow here, cold and and dry
by davidblythe
Sun Jan 31, 2010 11:49 am
Forum: Lambretta Tech
Topic: £5 Prize to guess top speed on an RT 250
Replies: 51
Views: 4916

Re: £5 Prize to guess top speed on an RT 250

eden wrote:gps speed? 78mph

speedo speed 130mph lol
Yep GPS Speed

picture of top speed will be posted later today
by davidblythe
Sun Jan 31, 2010 11:43 am
Forum: Lambretta Tech
Topic: £5 Prize to guess top speed on an RT 250
Replies: 51
Views: 4916

£5 Prize to guess top speed on an RT 250

we will be jetting in Darrells RT250 on the mad mile after midday then going for some high speed tests

Prize of £5 by paypal to the one who guesses nearest to the top speed by GPS of Mr Broadhursts RT250


believe it is running 4.6 gearing, 30mm phbh, fancy clubman, 64mm stroke crank and 70mm piston
by davidblythe
Mon Jan 25, 2010 6:53 pm
Forum: Lambretta Tech
Topic: rapido 250 alternative piston?
Replies: 2
Views: 456

Re: rapido 250 alternative piston?

kwacka H2 goes up to 73mm but needs a tv or rd400 rod
by davidblythe
Sat Jan 23, 2010 12:20 am
Forum: Lambretta Tech
Topic: calling all taffy mk4 owners
Replies: 8
Views: 1041

Re: calling all taffy mk4 owners

Sean - it should give 22 - 23ish hp but designed for touring really so should give plenty of grunt. 4.6.....thats impressive David, you got a rev counter fitted? what revs max power etc and does pipe start limiting bout 7500ish revs? hits 78mph all day and stops, so a bit under 7500rpm but that is ...
by davidblythe
Fri Jan 22, 2010 11:25 pm
Forum: Lambretta Tech
Topic: calling all taffy mk4 owners
Replies: 8
Views: 1041

Re: calling all taffy mk4 owners

How heavy is the rider? a very light 16 stone, and its going in a series 2. :D :D a heavy 15 stone, S1 with taffy 30mm phbh with filter -1mm deck clearance, widened exhaust port, matched cases, 6.5 CCR, AF flywheel, currently running 4.6, simetimes think 4.4 would be better but like the way it pull...
by davidblythe
Thu Jan 21, 2010 9:13 pm
Forum: Lambretta Tech
Topic: one for mr blythe ?
Replies: 7
Views: 834

Re: one for mr blythe ?

Hi Jarv

have you a spare UJ you can send me
by davidblythe
Thu Jan 21, 2010 12:30 am
Forum: Lambretta Tech
Topic: Flywheel center boss swap question???
Replies: 21
Views: 1615

Re: Flywheel center boss swap question???

On this issue, I have always thought that it would be a good idea to throw everthing on a lathe or something to make sure everything is running true, ie the the boss being central to everything else. Any thoughts on this any one? made an extended shaft without the crank web but with a keyway to hol...
by davidblythe
Tue Jan 19, 2010 11:06 pm
Forum: Lambretta Tech
Topic: Compression testers
Replies: 9
Views: 2554

Re: Compression testers

never used one on a scoot, but when using on my van, I never get too hung up on the actual readings... as long as they are all about the same, and consistent with last time i checked I think that's fine. so maybe check the engines periodically and note any drop, suggesting further investigation req...
by davidblythe
Tue Jan 19, 2010 9:46 pm
Forum: Lambretta Tech
Topic: Compression testers
Replies: 9
Views: 2554

Compression testers

playing around in the garage decided to have a try with a compression tester on a couple of scoots got readings of 110, 120 and 140 psi do these readings mean anything in the real world ie is the compression ratio too low on the scoot reading 110, do I need to run 98 octane on the one reading 140 ps...