Search found 78 matches

by turbovan
Sat Oct 11, 2014 1:43 pm
Forum: Vespa Tech
Topic: Diablo stopped trading ?
Replies: 26
Views: 5045

Re: Diablo stopped trading ?

Harry Barlow is best bet he use to do work for Alan
by turbovan
Sat Dec 21, 2013 10:39 am
Forum: Lambretta Tech
Topic: Crank shortage?
Replies: 12
Views: 3370

Re: Crank shortage?

Harry has got 60 61 62 cranks in stock .
by turbovan
Fri Dec 20, 2013 8:52 pm
Forum: Lambretta Tech
Topic: Crank shortage?
Replies: 12
Views: 3370

Re: Crank shortage?

Harry Barlow has them in stock
by turbovan
Sat Jun 29, 2013 9:32 pm
Forum: Lambretta Dyno Graphs
Topic: TS1 245 38bhp / 26.14 ft.lbs
Replies: 174
Views: 36150

Re: TS1 245 38bhp / 26.14 ft.lbs

Like the water cooled cylinder anymore pictures or info on it
by turbovan
Mon Apr 22, 2013 5:04 pm
Forum: Liquid Cooled, Motorcycle Engine & Automatics Section
Topic: LC230
Replies: 8
Views: 3374

Re: LC230

Very nice im building a watercoolef lambretta just wating to get barrel done
Got a nice sx frame to put it
by turbovan
Wed Feb 27, 2013 6:08 pm
Forum: Lambretta Tech
Topic: Pro Porting Xmas Tree For SX150 3/4th Gear Fix
Replies: 28
Views: 5883

Re: Pro Porting Xmas Tree For SX150 3/4th Gear Fix

The first batch of 10 have all gone... Harry raced an engine with one in at Elvington, hard launches on the eighth mile, the engine was then dynoed with no problems, kit was a standard customer pro225cc making around 23 rwhp, 18 ftlbs. It was also very nice to ride on the road because it is close ra...
by turbovan
Sat Feb 09, 2013 9:19 am
Forum: Vespa Tech
Topic: Cylinder Kit - BGM or SIP GS
Replies: 5
Views: 1500

Re: Cylinder Kit - BGM or SIP GS

Harry's piston 68.0 and 68.5 uses wire rings ( Rik) from an old spec of cr250 honda, they are 1.2mm thick and the pistons were made to suit these rings, all the rest use cast rings.... which will not stand a wide exhaust, max around 44mm, approx 64%, wire rings allow wider approx 46mm, 67% for road ...
by turbovan
Tue Feb 05, 2013 12:46 am
Forum: Vespa Tech
Topic: vespa longstroke
Replies: 5
Views: 954

Re: vespa longstroke

If you want to longstroke a P2 standard cylinder you dont need the packer plate, the ports are raised by the crank moving an extra 1.5mm down uncovering the transfers at BDC fully.The head will need machining to suit, normally a 1.5 step. If you put the 60mm crank in a 210 Malossi you will need to l...
by turbovan
Mon Jan 21, 2013 11:08 am
Forum: Vespa Tech
Topic: barlow stage four set ups
Replies: 85
Views: 16615

Re: barlow stage four set ups

The dyno motor had nearly 300 miles on it, not the final spec ( wider transfers work better, 27mm wide) piston clearance has to be 5 thou minimum or it will nip if you are not careful! std Piaggio clearance is approx 5.5 thou, they do need to be run in though:-)
by turbovan
Mon Jan 21, 2013 2:00 am
Forum: Vespa Tech
Topic: barlow stage four set ups
Replies: 85
Views: 16615

Re: barlow stage four set ups

The piston Harry uses is 68.0mm Taiwanese high silicone content, has 1.2mm thick Rik wire rings ( from CR250 Honda ) this allows a very wide exhaust port to be made 44 to 45 mm is reliable (66%), the 218cc version has his own 60mm crank that closes the inlet at the original closing point, approx 55 ...