Pdf tuning manual

[Hudriwudri]

Hi guys,

Mostly out of of curiosity, as i have my own particular ideas about gas dynamics and porting, i was wondering if any of you had the pdf tuning manual that was offered for sale on 650performance but does not seem to ve anymore online?
Mostly I'm curious about the achieved flow numbers and the used cams etc.

Thanks a lot and kind regards

Christian

 

[Signal]

Well worth getting one. I have no regrets even if you dont buy the head work it is still has a lot of useful info.
On my to do list is to flow test a Lillie replica head and compare to stock.
The ignition options listed is outdated but the timing info is spot on.
Using the Lillie replica head and a 750 kit HP at the rear wheel in the mid 70's is achievable.

 

[Hudriwudri]

Thanks,

I usually dont hand porting work to outside sources or better said I'm more interested on conducting my own porting and tuning work as i have a lot of fun, given enough spare time, usually to conduct such Jobs.
It just seems that xs650performance is not online anymore and thus one can not buy the booklet anymore.
I would assume that with more profound cylinder head work very good HP values should be possible.

Kind regards Christian