New "Old" info on porting

[UncagedShadow]

Anyone ever hear of the jennings 2 stroke porting guide? Unfortunatley I probably wasnt even born when this was published, but it is still some great info.

I saved the page and and opened it in Adobe Acrobat Viewer, then rotated it so I could read it.

http://edj.net/2stroke/jennings/2stroketunershandbook.pdf

Another interesting thing I came across on a scooter forum. A port timing calculator. All you need are a few numbers...

Port Timing calculators - Lambretta Images Archive

 

[Blaner]

yip, a very good read. some A grade info in that book

 

[blasterfreek30]

great stuff man..good find

 

[brandoz28]

i think the jennings book has been linked here a few times, a lot of that info will go over the head of the average BF member

 

[UncagedShadow]

Very true brandoz. But lately I've been seriously doing some R&D. Well really more R than D. But all my research has been centered around 2 stroke performance. I have recently become very, very interested in porting and more importantly the science of porting. I plan on ordering a couple of junk jugs off ebay in a few months and doing some really radical stuff. Trying some new stuff out on the blasty. It seems to me that recently companies have been dropping the blaster from parts production because its outdated. Well I'm keeping the blaster alive.

 

[theblasterboy]

nice findings man good stuff