Search found 318 matches

by RinB
Wed Jan 07, 2009 8:08 pm
Forum: Lambretta Tech
Topic: Primary Compression....High versus Low....
Replies: 3
Views: 1193

Re: Primary Compression....High versus Low....

Oh Bl@dy hell were not starting this again :lol: :lol: :lol: :lol:

LOVE IT :twisted:
by RinB
Wed Jan 07, 2009 4:46 pm
Forum: Lambretta Tech
Topic: Uber race crank
Replies: 57
Views: 8736

Re: Uber race crank

Basically this is whats being done to crank

As you can see very simular to Vespa cranks and alot of bike cranks

Image


Smiffy
by RinB
Wed Jan 07, 2009 12:50 am
Forum: Lambretta Tech
Topic: Group 4 Race Engine - 2004 - 31.5HP Rapido
Replies: 5
Views: 1601

Re: Group 4 Race Engine - 2004 - 31.5HP Rapido

Wolf whisle twittwoooo Nice curves :twisted:
by RinB
Wed Jan 07, 2009 12:29 am
Forum: Lambretta Tech
Topic: Uber race crank
Replies: 57
Views: 8736

Re: Uber race crank

Got alot more to go Sean to get that Comp Ratio down m8 ;)

:lol:
by RinB
Tue Jan 06, 2009 10:16 pm
Forum: Scooterotica Tuning & Maintenance Information
Topic: What is Engine Capacity
Replies: 0
Views: 2421

What is Engine Capacity

The basic formula for Engine capacity is: CC=( Pi x D²xS)/4000 Where: PI = 3.1416 D = Bore diameter in mm S = Stroke in mm Please note it is the stroke of a crank not the conrod length which is used for calculating CC Std lamy stroke 58mm Typical over stroke 60mm 62mm 64mm Short stroke 54mm 60mm ca...
by RinB
Tue Jan 06, 2009 9:47 pm
Forum: Scooterotica Tuning & Maintenance Information
Topic: Exhaust theory Pt1
Replies: 0
Views: 1529

Exhaust theory Pt1

Basic theory: The Expansion Exhaust has two waves forms that are reflected, one is negative (vacuum), one is positive (pressure) The negative wave is reflected to the exhaust port to arrive to assist drawing in the incoming fuel charge (down stroke) The positive wave is reflected to the exhaust por...
by RinB
Tue Jan 06, 2009 9:27 pm
Forum: Scooterotica Tuning & Maintenance Information
Topic: Port Time Area
Replies: 0
Views: 2758

Port Time Area

The basics being that although a port timing measurement in degrees gives you an idea how long a port is open for.....it doesn’t tell you what size the port is, or how much gas it will flow. Further more, the relationship between inlet/transfer/exhaust ports is obviously linked, and thus you want ...
by RinB
Tue Jan 06, 2009 9:08 pm
Forum: Show us yer Scoots!!
Topic: Reflections in Blue the Paintwork (RinB)
Replies: 12
Views: 2194

Reflections in Blue the Paintwork (RinB)

Well for all those that have seen it or not here are some of the faces in the paint As many people have found out it is very hard to get the faces out with a camera. Ive never really pushed to get it in scootering even though we have attempted to organise. But in the end I felt it would spoil the ex...