5.50 Hoosier on the left rear. Easy enough to get there with the 5.50...the 6.50 will roll out too close to 34" even on a wide lr wheel.
For this reason, we often run 6.50 right sides and 5.50 left sides to get the sizes of treads back to what they should be for a flat kart.
Using a wide tire on the left rear will make the car push like a truck center-off or when you're on the throttle. If you decide to go that route, you'll probably end up on stupid low cross (even negative - ie 48%) to make that deal work.
Personally, I'd run the smaller tires I described and a lot of your set-up woes will go away as you can go back to a normal flat kart set-up like you run with slicks.
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?Thanks and God bless,
Brian Carlson
Carlson Racing Engines
Vector Cutz
www.CarlsonMotorsports.com
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30 years of service to the karting industry
Linden, IN
765-339-4407
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The stagger you desire is easy to get. But having a 34" RR might not be? Id buy the 12x9.00x6 for the RR and a 11x7.1x5 for the LR. Then gear accordingly for the larger right rear.
I have a new set, that have the desired stagger. But the RR is 37 1/4". From what I've been reading thats way too big for a red plate clone. Or even any restricted clone. So I wanted to get all four tires down in size to save weight and rolling resistance.
Yes, but are other classes allowed to run treads? That will affect the track as well.this is in a kids class, not a lot of horses picking up the track...and track packs hard.
Even with the same gearing, those big tires will be slower. Just waaaaaaaaaaaaay too much weight and drag pulling those huge treaded tires around the track with very limited HP. Again, those tires were designed to handle the big engine classes.
I must be confused? We ran Burris TX-11 treaded tires 12x800x6 with our Kt's in 1982 way before there was such a thing as a big engine kart class. But I do agree with you, knowing what I know now Id be on slicks if the track even almost packs.