I race in snl with a 40mm axle.I noticed that the Phoenix kart they recommend for snl has a 30mm axle.Just doing a pole of snl drivers as to what is the most common sized axle and which one would be the best 30mm or 40mm?.Also what do other kart makers recommend for snl.
Thanks for the replies
Thanks for the replies
Views: 83
Comments6
Well i can tell u from experience that the 40mm axel can be a good option. I raced JNH couple of years ago which is the same class. And i always went for the 40mm soft axel. I was running the arrow though, but most of the other drivers ran 30's. I found that running a 40 makes the kart come on nice and late, which works well in state titles. Also i found it worked when there was lots of mg and rotax rubber down, didnt grip up as much as the 30. But yer i managed to run top 5 at state tiles with the 40. Its just really up to what you prefer, they can both work.
I can't remember what I wrote on the Phoenix site, but here's my take on it now...
40mm makes the rear stiffer, obviously, which makes it good for grippy tracks and long races, as Nick has mentioned.
30mm is softer, which makes it better suited to slippery conditions and shorter races.
40mm generally requires a more skillful driver, and a more precise setup. IE, a 30mm will go half alright laptime-wise even if you make a bunch of mistakes with the steering wheel, and have an inappropriate rear track. A 40mm, on the other hand, requires a more precise driver, and a better knowledge of setup. Mistakes are penalised more harshly with the larger axle.
Incidentally, all the above holds true for using a 50mm in Clubman Light and Heavy, in my opinion.
Hope that helps you out some...
Thanks it gives me something to think about.I run a 40mm soft axle.If I change to a 40mm supersoft would it have the same effect as a 30mm.Otherwise,when I'm the market for a new kart (mine's about 9 yrs old)I might go for a 30mm job
Col Fink said:I can't remember what I wrote on the Phoenix site, but here's my take on it now...40mm makes the rear stiffer, obviously, which makes it good for grippy tracks and long races, as Nick has mentioned.30mm is softer, which makes it better suited to slippery conditions and shorter races.40mm generally requires a more skillful driver, and a more precise setup. IE, a 30mm will go half alright laptime-wise even if you make a bunch of mistakes with the steering wheel, and have an inappropriate rear track. A 40mm, on the other hand, requires a more precise driver, and a better knowledge of setup. Mistakes are penalised more harshly with the larger axle.Incidentally, all the above holds true for using a 50mm in Clubman Light and Heavy, in my opinion.Hope that helps you out some...
Hey Col,
You mentioned club light and heavy,
Would you say that a 50mm x 2mm is stiffer then the same grade axle in a 40mm x 3mm?
i raced j's for years and we always used 30mm stuff but we tryed some 40mm stuff and it seems to work better in colder weather we found, i always started with a 30 tho and try a few different lenghts,
what ever you like best or works in your kart is the way to go. not only for one lap tho you need a set up that will be good in a race
I run SNH i have a 40mm, i have always ben told for us bigger fellas 40mm is the go interested to hear what you guys think? I should say i am by no means any sort of expert and i am particularly interested in this topic
Pete