Fork Oil Capacity....

manx850 · Mar 20, 2015

I have finally fitted the Lansdowne conversion I have had lying around for a while to my MK3....what is the latest opinion of the capacity and weight of fork oil considered to work well for regular road work?.......Thanks

pete.v · Mar 20, 2015

14. Fill with 150 ml of S.A.E 10 grade fork fluid in each leg.

I have heard no reason to deviate.

Hobot · Mar 20, 2015

Don't yoose dudes keep up with the Lansdownes reports as lastest greatest result was gotten by a racer only using 80 ml of fluid. Something funny going on inside Lansdownes forks or illogical interpretations of best report yet - as the 80 ml level was reported as improving the air spring and dampening -which I believe report- but that low of fluid would remove any air spring compression pocket influence and was suggested in same post it might even be low enough to uncover rebound damper valve to function as designed. Only one way to find out how much is too much or too little in your particular case. Please don't vomit back I'm putting down Lansdownes forks as I'm as pleased-interested as anyone they improve forks so much so just trying to comprehend all the factoids.

pete.v · Mar 20, 2015

We might better bring up that thread before jumping to conclusions. I thought those were preliminary results, somewhat hypothetical and being of special curcumstances.
I am sure if John came up with a substantial conclusion, he would have updated his install guide by now.

He mentioned in his "Eureka ?" thread,

john robert bould said:
His springs are built up ,stack 5 high with nylon connecters. his original travel was only 50mm with stock Norton internals ,now with the be-spoke set up he as 90mm ..due to the light weight of 130kg the front end was to firm.
I machined the spring OD to 3.6mm from 4 mm, springs are stainless . It's tricky to get the "firmness" right with email info..so i accessed the stock Norton and made the new ones 15% less... As i have said he only 1/2 filled the dampers . giving him what he required.
He Gold plated the parts! so water will not rust them :lol:

Not a stock or standard situation.

john robert bould · Mar 20, 2015

D :roll: avy down under sent me a youtube video , this morning. Showing a high speed blast. I have requested a better camera angle showing his forks...So that may be on its way.

hobot said:
Don't yoose dudes keep up with the Lansdownes reports as lastest greatest result was gotten by a racer only using 80 ml of fluid. Something funny going on inside Lansdownes forks or illogical interpretations of best report yet - as the 80 ml level was reported as improving the air spring and dampening -which I believe report- but that low of fluid would remove any air spring compression pocket influence and was suggested in same post it might even be low enough to uncover rebound damper valve to function as designed. Only one way to find out how much is too much or too little in your particular case. Please don't vomit back I'm putting down Lansdownes forks as I'm as pleased-interested as anyone they improve forks so much so just trying to comprehend all the factoids.

Hobot · Mar 20, 2015

My take of the low fluid report was as a public alert of a surprise experiment that others might want to try-investigate-back up, as proven safe and desirable by a calibrated seasoned racer. I'm surprised confused alerted as anyone and thot appropriate to bring up in a Lansdownes vital fluid level thread. So far we only know that anywhere between 80 ml and somewhat over 150 ml is acceptable but not what level could hydrolock nor agreed level found the 'best' yet. I sense a gem of fork dynamics insight lurking in this "exception to the Rule"

Fork Oil Capacity....

manx850

pete.v

Hobot

pete.v

john robert bould

Hobot

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