This has been a decent idea on just how much lap time I'd likely be losing jumping into a kart being 150kg. XD Definitely a good motivator to losing weight XD
You really can not compare weight and aerodynamic downforce/ you can not say that they have similar effect to performance. Weight causes centripetal force, aerodynamic downforce does not. Weight causes full "drag" at any speed, aerodynamic downforce causes very little "drag" at low speeds, and full "drag" only at max speed.
I’ve noticed that as a heavier driver it’s far more kart dependant. A kart with bad handling but good power will me miles faster than a kart with good handling but less power. I’ve seen lighter drivers so laps between two karts and set laps within a tenth but when I drive them there can be more than a second between them.
Great demo! Before watching, I was skeptical as to how controlled your 'experiment' would be, but, with lap time SO consistent, the results are pretty clear! You need to do the same in the wet now!!
I was skeptical as well i wanted it to be fair as i have nothing to gain or lose from the result so going in to this i said to myself i wont leave any stone unturned but i soon found out i just stepped on to brighton beach and the more i looked, the more i needed to figure out being consistent was the biggest factor to me that had to be right and then being able to adapt to the weight and change driving style to suit before doing timed laps so no time was left on the table I am currently planning more parts to this weight subject so more parts to come (wet, indoor, electric etc)
I race Lo206 and it is already all test out you can see same people running different weight class all the time…35 pounds difference is always around 1.3 second a lap on a 1 minute lap. Test all you want but on a normal track it’s 0.02 per pound of weight. Light is always better no matter what lign you take. Exception is in the rain. Heavier and taller is usually better. The track you test on in this video is super wide and flowy…test that on a normal tighter sprint track and you would get way way bigger gap.
You can say that about anything test here or there and you gain/lose more time we could go somewhere where its just an uphill straight for a mile you would lose even more time this track was picked because i was able to break down sector times without my own timing (emailed to me after the session) has a multi hair pin section (sector 1) a down hill section (sector 2) an uphill section (sector 3) i never said this is what time you lose and this is gospel across every track in the universe some common sense needs to be applied here
It’s also worth noting that these karts are so heavy, it’s not the same as a proper racing kart which are far far lighter! I recently ran with no lead on my kart instead of the 15kg I needed and could lap best part of a second quicker
@@D45HEY I think I disagree that it’s irrelevant. If the total weight is about 220kg, which is not heard of for a hire kart then 30kg is less of a percentage of the overall weight than on a kart that weighs 150-160kg total. Just my thoughts
@@pillowhead4000 so all we are trying to find out does weight of a person make a difference so we have 2 karts both 200 kilos (for example) and 2 drivers one weighing 70kg and the other weighing 100kg then they go out and set lap times and it comes back with a 0.4 gap whats the difference between the 2 that made that time difference? It would be the weight of the driver Would it be a different result on a lighter kart? Possibly a bigger or smaller gap but the principles are the same
Great video iv only started karting this year at buckmore and iv gone from 1min5 down to 53s a lap. I weight 103kg. And i always find its sector 3 getting up hill is when i lose speed and then position and time.the rest of the lap i can just about keep up with the faster drivers
Dont let sector 3 put you off, i know people that have raced for years and cant improve at all because they cant figure out how to you have only just started and have shaved off over 10 seconds thats insane!!! keep at it and hopefully hear from you again with further improvements Good luck 🙌
I am going to assume maybe you skipped parts of the video so i’ll clarify my point “4 tenths is nothing considering the weight difference” when people use weight as an excuse for losing its normally by 3-4 seconds a lap so in comparison 4 tenths is nothing
@@gussayare you claiming the aero of being bigger costs 2 tenths in the first sector? A very bold claim i would start with some self accountabilty and question your driving before i started making stuff up unless of course you have credible evidence
@@D45HEY I wasn't claiming 2 tenths in the first sector... YOU did in your video in the stats @10:46.... and that is without any extra aero disadvantage of a taller person may be taken into account. You showed 0.35 secs to be at least 20 meters across the line @10:00 So in that first sector someone pulls 10 to 15 meters on you (that 0.25 loss that YOU showed in the first sector) then you are going to lose places. And you are NOT factoring that into your experiment. As far as MY self accountability... I am fine with my record. I raced direct drive two strokes. No slipper clutches and really bad low end torque... For a kid who went from 5' 6 to 6' in two years ( 14 to 16 yo ) and went from winner to also ran over that time... You think i got worse with experience?
I will say active aero is definitely the best weight. Get to choose how much artificial weight you put down. Wish there was a way you could implement that. You’d get a ton of weird looks though 🤣
@@robertct06 how did i not think of this!!! to do this off the top of my head i would need someone on every corner entry to throw me the perfect weight for that corner, i’ll catch the weight before going in to the corner and then as i come out the corner throw the weight out the kart we will be setting lap records in no time 😂 bring on the weird looks
In Club100 the lightweight drivers are consistently around 0.4s a lap quicker than the heavyweights and there's a 12KG minimum weight difference between the two so that works out at 0.03s per KG if it was linear (agreed though that it probably ramps up aggressively the heavier you get)
So that confirms sort of what i was saying, i will do a test with weight increase in increments and plot a graph to confirm exactly how it would be as i think this would be a good reference to work out which 2 drivers would be quicker if the same weight
@@btracing rain is the one i am looking forward to the most for future videos Part 2 - indoor (electric) Part 3 - Rain Part 4 - outdoor with weight in increments Part 5 - adapting driving style to weight
Being 55kg's i do definitely see the difference in acceleration when overtaking other people who are heavier, the real question is, what is the mathematically best weight? 🤔
@@vetteltuna1716 only one way to find out, book a full day at a track and just keep upping the weight in small increments to plot a graph and see what is happening
I raced my friend on electric indoor karts this year. Our weight difference is huge but I know we're very very similar in speed from real life and virtual racing. The gap was very close, only 0.1-0.2s and I didn't find myself reeling him in on the straights at all when I followed right behind him for many laps. I found it to be a hinderance being so light because my kart kept hopping like crazy through high speed corners because I didn't have enough body weight to shift to the outside rear wheel
@@gabe2968 i done a video on the electric karts, i was super againest it as i prefer using crushed dinosaurs to race i like to get the fuel in to my veins but after that video its exactly as you said so close with the people i race with different weights but same skill in all racing we have done (from street racing to sim racing and everything in between) that i actually prefer it, my only problem with electric is the front end has a “numb” feeling so harder to gauge what the kart wants from me
@@D45HEY Much like yourself I prefer petrol but my friend and I decided on electric for a more fair duel. I thought they were some of the best feeling karts I'd ever driven, the amount of grip was insane but this was in Germany not the UK. My only problem with electric karts is that the acceleration makes karting far more forgiving. It's less about maintaining speed and sustaining as many revs as possible.
@@gabe2968 yeah i agree its easy to recover from mistakes which gives less opportunity to the cars behind to capitalise on it the electric karts i have raced on have a boost button that you can manage so you can just recover using this but makes it different which is fun i will have to try karting in germany when going to the ring
I ran Briggs Masters and had to add 40 lbs of lead to make minimum weight . When I did my final race I did a DNF for pre final . Then pulled off all the weight . WOW what a difference after 4 years 😁😁🏁
@@eugene4643 what is 40lbs in english around 18-20kg? I bet it felt like a brand new kart after 4 years what did you prefer though ignoring lap timeswith or without weight
@@D45HEY That's about right for weight ! . Took me three rounds to find the weight I needed so slowly got use to it ! At one point I kept putting left tires on paint and eventually the lack of weight grip helped me into a off track excursion 🤣😂 Was about to buy a new kart and then it all went bad . But still do rental races and the throttle leg not what it use to be ☹️ This weekend was 1st time in 10 years that have won back to back races !
I feel like a lightweight car is always better provided that the setup is optimized for that weight. Maybe the combination of the stiff kart suspensión (tyres and frame bending) and the level of bumpiness on the track are a better setup for an unsprung weight closer to 90kg and thats why it feels so stable on the corners.
@@mariohuarte6104 the more weight you have the less chance of the kart hopping up in the air and you sliding for example there is potiential for there to be a perfect weight and i will find it just a matter of time
Great analysis! From my point of view, It all depends on the track configuration and the kart power. Being a 95 kg driver i often find myself racing 70-80 kg opponents. On a 1 km flat outdoor track with a 13 h.p kart i lose roughly 0.3-0.4 per lap, but on a shorter 400-500 m indoor track i am only 0.1 slower. The good part about being heavy is when rain hits, i find myself being one of the quickest due to my heavy ass sticking to the track better :) The worse part is on tracks with uphill sections, where the time loss is much bigger.
@@mentalmikeracing completely agree its going to be track dependant on how much time you lose, i went with buckmore as i think it has the best of all tight hair pins with a down and up hill section, i will do a part 2&3 being indoor electric karts and then in the wet as much as i hate racing in the rain its all in the name of fact finding
You should try this on an inside track with a grippy floor/ slippy floor mix. A lightweight has much better chance of dive bombing and pulling away without incident on the grippy tight corners of a wooden surface. Not to mention uphill ramps after a corner! Electric karts minimise this issue somewhat over the lower torque petrol versions. Ive seen lighter drivers beaten by a heavier driver when they get a marginally slower electric kart because the weight-related performance difference is so small. It just seems huge on those grippier sections where you just get gapped on the straight out of the hairpin even though you carried more momentum. That said it’s definitely easier on the slippy bits being heavier. Just harder to overtake if the person in front has closed off the inside! Ive found about a 0.5 second difference on my local track (43 sec average lap). Its the overtaking benefits on a tight track that really kill you as a heavier driver. Good to see you do it with 30Kg. Its so marginal you really need a good difference to demonstrate it.
@@David_Ashurst there is 100% different scenarios where weight can play different roles and to try and get that all in one video was going to be potientally overwhelming for some viewers to really understand exactly what was happening could lead to contradicting data etc so as a start i thought the best way would be the way we have done it which could lead on to part 2 part 3 and so forth Indoor track will more then likely be next as you said you could lose time on the up ramp but as my good friend issac newton said “what goes up, must come down” so would you gain back on the down ramp what you lose on the up ramp Electric karts in my opinion are brilliany for leveling the playing field i have about 10-12 people i practise with all different weights but same skill/talent if we are in petrol everyone has thier driving style to maximise thier weight advantage/disadvantge in the electrics we all do the same thing and its bumper to bumper racing but i know what you mean the accelaration you lose out on being heavier doesn’t out weigh the extra corner speed you have so can be frustrating but i am determined to find the answer to what excatly the difference is so that there is almost a data chart of comparing a lap time with your friend no matter the weight e:g this video if i was racing you and you weigh 100 kilos and i am at 70 kilos and you was half a tenth off my lap time then you would be quicker then me across the same weight and works the other way round (which what made me do this video) people telling me i only won because of my weight but are an extra 15 kilos and are 4-5 seconds of the pace No self accountabilty and if you don’t have that you will never improve You are right though tighter track doesnt allow to carry momentum to get past someone as you scrub of speed with steering input so i do get it, can be frustrating but in my experience it can be done with careful planning and excuting it from further back which seems stupid but catching them by carrying more corner speed that later down the straight could get you side by side may be enough to get the job done As for the 30kg beong marginal you are correct i originally wanted 60kg but the good people at buckmore are not going to allow me to have bumpet weights just sitting on my lap and i dont blame them health and safety would have a field day if one of the weights come flying off my lap
@@D45HEY Sure. Good luck. Will be interesting to see your results. I checked out some best same day qualifying times on BIKC 2023. Heavyweights 52.37 Middleweight 52.04 Lightweight 51.95 If you assume these are pretty good drivers consistently lapping then its a good example of what im saying. There is a marked difference of nearly half a second overall on a lap. If you factor in the types of gains eg take-off speed then you can easily see the overtaking advantage for the lightweight drivers. But hey, thats why we have weight classes. So its all good.🙂
@@David_Ashurst done half my job for me for the next video 😂 those lap times are so close so would be good to see where the advantage/disavantage would be should be easy to find as you said nearly half a second Yeah would be good to compare lightweight to heavyweight overtaking advantages as well so will defo bring that to light in the next video, appriciate the input 🙌
So the plan is to hit gym, do squats and calf raises only and put on 10kg of leg muscle and get to 83kg which could be the perfect weight based on your chart this = low centre of gravity which equates to lower lap times 😏😂 great vid bro
@@savz07 get out my head, exactly what i plan to do but not the gym bit that will take to long 😂 i was thinking strapping 2 5kg weights to each leg from now on and see what happens 😬
He had the line, but there was a gap. He starts to close the door way too late - especially when there was room on the outside for him to go. 70-30, more on him because he could’ve done more to avoid the collision - but it was front wheel to back wheel contact
Really difficult to judge but in my opinion the POV Kart is going for a gap that is actually to small to go for and eventually will close in a matter of seconds because the kart 121 is following the racing line into the corner and he also has the right to dictate the racing line as long as he's leading. Kart 121 definitely is trying to defend by closing the door.
I would normally agree, in this case it all split second choices i was carrying more speed in to the corner he moved over and stopped which left a gap for me to slip down the inside so i went for it but then as i did he moved again closing the gap more which ended in the result you see above, if we go by the rules then yes i done the wrong thing need to be along side at least 50% i get that but in this case he moved twice which to me was a cheap & desperate attempt to close the door last second to hold on to the position
Rain... different racing line... wide line and then cross over with the racing line to take the inside when going out of the corner... because rubber + rain + rubber tyres... that's bambi on ice...
You’ll have to come back and maybe do a members night on a Thursday. They use the international track which is the 475m smaller track used for normal public sessions with the combat kart track as well.
yeah would love to, I have seen the track has completely changed since making this video I am in south London so need a reason to come up that way before I book on
