Quote:
Originally Posted by wrightcs77
Looking at ordering some of these. I live in the USA and run mostly on outdoor 8th scale tracks. Any idea on what may work best? Don't want to have to order 40 in pistons....lol.
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That's a tricky one to answer but to start with - what normal pistons have you found that work?
Around my local track, I was using 6 hole 55s in the rear with either 6 hole 56s in the front or 4 hole 55s and have found the 5 hole 1.3 tapers are better - especially in the rear.
The advantage of the taper appears to be in the small bump perfomance vs big hit - if you have a track with both, the taper allows you to run more pack / heavier oil to suit the big jump landings whilst retaining the small bump active feel.
Does the track blow out or does it stay fairly good? From what I have read and seen about many US clay and dirt tracks, they either become very loose or they stay hard pack and relatively smooth - well smooth compared to our tracks over here that is. If that's the case, I would suggest something like a 1.2mm hole - maybe in a 5 hole or even a 4 hole if you're using 4 hole 56s right now?
The kit 4 hole piston configuration was a result of the US team testing - we drilled our prototypes to 6 hole at a time when all we had were blank pistons and no final decision had been taken (AFAIK). The 4 hole has, for us, not been as useful on our tracks with the mid car as it has proved to be in the US - so potentially, you may need to consider than the kit pistons are already closer to what you need for your typical running than what they are for our typical running.
With all that said, Nick's handiwork is top class and the drilled holes are nice - but you'll have to learn metric drill sizes -
Good luck with them - if your track does get rough, rutted or cuts up then I'm sure they'll be an advantage for you but like you say, 40 variants is maybe a lot to go through.