So my son went from running cadet last season, and being about 5# heavy, which wasnt a huge concern, to jr lite, with a full size chassis, and is now 35 pounds heavy.
Obviously a huge part is him being a physically big kid, but are there any obvious spots to trim a few pounds off a kart?
I have magnesium rims coming to replace the aluminum rims, i might swap the 8.5L fuel tank for a 3.5L off a cadet kart. Could do mini gears possibly.
I did ask about that, our club has jr heavy, which they prefer to be 12 to 15, and since he just turned 11 before this season started, they said they would likely deny it based on his age. Their advice was to use this season to get used to the bigger kart, and move to Jr heavy next year.
I’d balk at that, being at a 35 pound disadvantage should be plenty reason to step up. Being only 1 year shy on age it should be no issue as long as he’s competent and not going to be dangerous which sounds like shouldn’t be issue. What insurance does your track use?
507 bodywork, titanium steering shaft, nerfs and bumper hoops, carbon floorpan, no graphics, cut off middle bearing hanger, cut off rear bar spuds, no Mychron, small tank, switch to MCP brakes with a 1/8" rotor…
Added:
Or, sell the OTK and buy an American Chassis because we build them light cause most of us are heavier than the 110# Italians…
35 lbs is about 20% of a kart’s weight. Move up a class. You’d have to run a cadet kart and then start sawing steel off wherever you could to get it down on weight, replace as much steel as you can with wood, etc, and you still wouldn’t be close.
Sadly not much of an option. Have to wait until next year to move to jr lite, no clubs locally that run VLR, and ROK GP jr is also a minimum of 12 years old, so no go there either. Probably just have to deal with it this season.
Do as much as you can and then just treat it like a learning season if you are still way overweight. It’ll be like swinging a weighted bat and next season you’ll be stronger because of it.
Thats what im seeing as the best bet this year. I’d be more concerned if i felt he was at his max and the extra weight was the only thing holding him back, but realistically he’s still leaving time on the table, i think I’ll see what i can do to drop 5 pounds off the chassis and also get him working on his fitness more, which is also holding him back on long days at the track. Hopefully by the end of the season his driving and fitness will bridge the gap a bit and next season he’ll be on even keel.
I have that overweight problem. I’ve been replacing steel with titanium, aluminum and plastic where I can. Drilling lightening holes in some metal supports.
Thats the hope! He’s currently running right at weight for jr heavy, but has the briggs slide for jr lite. Next year at the same basic weight but more power, he should be competitive.