Weight Bias: It’s not what you think anymore! Tech Tip Tuesday

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Motion Raceworks Official

Motion Raceworks Official

3 жыл бұрын

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Пікірлер: 103
@corbanlee8157
@corbanlee8157 3 жыл бұрын
Was thinking of leroy with the turbo placement 🤣😂
@buzz4633
@buzz4633 3 жыл бұрын
Yup, and along comes Mullet. I'm curious where Kevin will put the turbos now.
@TheOlsonOutfit
@TheOlsonOutfit 3 жыл бұрын
@@buzz4633 don't look ;-)
@buzz4633
@buzz4633 3 жыл бұрын
@@TheOlsonOutfit Too late! 🤣
@2blkSSs
@2blkSSs 3 жыл бұрын
I was thinking of James talking to kyle about it haha
@lsg_mk7r352
@lsg_mk7r352 3 жыл бұрын
@@2blkSSs Yeah Kyle needs to watch this video. Because he's moving things around on the MR2 and one of the things that he's moving is the radiator from the front of the MR2 to the back
@Dwarfracer88
@Dwarfracer88 3 жыл бұрын
Roll centers and polar moment of inertia. The lower the weight is the harder it is for the tires to lift it, causing the tire to press down into the track to move that weight. The closer the weight is to theoretical center of mass of the car the easier it is to change that theoretical center of mass with suspension adjustments. That way you can adjust the car without actually having to physically move weight.
@jonferron3053
@jonferron3053 3 жыл бұрын
Slowly but surely becoming my favorite Channel with all the great information each and every video or showing me something new and grabbing my attention great job
@williammartino952
@williammartino952 2 жыл бұрын
So glad I came across this vid, was planning on more weight in the back!! I would have never thought to think all this!!
@lazyhoundracing9621
@lazyhoundracing9621 3 жыл бұрын
I'm doing a new build now and weight is important to me. Thanks for your insight on the subject. I watched the wind tunnel video and was amazed at the lift in the front at speed.
@joecameron3406
@joecameron3406 3 жыл бұрын
Always look forward to tech Tuesday balancing an S10 is going to be fun especially small tire thanks once again
@68nomad
@68nomad 3 жыл бұрын
This is great to know. Was planing on move my radiator to behind the cab to make room and move one weight. Might have to reconsider this. Thanks
@drivinwithdrew7676
@drivinwithdrew7676 3 жыл бұрын
Pretty good Info here, I love videos on suspension, making power is easy, making the car consistent is the hard part
@kene6838
@kene6838 3 жыл бұрын
Great explanation , sled pullers are a good example of weight placed on a chassis used for leverage.
@zukobringas5096
@zukobringas5096 3 жыл бұрын
Was actually thinking the same way...more weight upfront so it could nicely transfer to rear wheels at launch instead of it being already at the rear which will transfer to nowhere. Your experience has confirmed that theory, thanks for the great info.
@dennykatz157
@dennykatz157 3 жыл бұрын
Great info! Keep up the great work!
@brianwiniarski4490
@brianwiniarski4490 3 жыл бұрын
Great video thanks for posting!
@jasonwells2988
@jasonwells2988 2 жыл бұрын
Great video. Thanks for your time
@centermass4962
@centermass4962 3 жыл бұрын
Solid info. Love that nova btw man.
@grayscustomautogca3017
@grayscustomautogca3017 3 жыл бұрын
Awesome info Doug! Light bulb just went off! Radiator is staying in its original home!!
@JohnRoberts71
@JohnRoberts71 3 жыл бұрын
Great content thanks for sharing
@brandonpanozzo86
@brandonpanozzo86 3 жыл бұрын
oh shit real useful tech thank you Doug
@cocostacoyalgomas6803
@cocostacoyalgomas6803 3 жыл бұрын
Blessings brother
@joewest531
@joewest531 3 жыл бұрын
This is definitely good info for radial tire set ups I would think closer to 50/50 would be better for big tire set ups though
@lindsaymcpherson4744
@lindsaymcpherson4744 3 жыл бұрын
Great video guys straight to the point without making a maths lesson out of it !! Wicked !!
@davidciesielski8251
@davidciesielski8251 Жыл бұрын
a very cool, smart dude!! Thanks
@colterdraper1061
@colterdraper1061 3 жыл бұрын
I have a rear mount radiator set up. It's a street car. I did it for room and access in the engine bay.
@darrelowens
@darrelowens 3 жыл бұрын
I had an 81 Big Block Pro Street Chevy Truck which was Yellow and blue. I called mine the Nuclear Banana.
@Jvcomet
@Jvcomet 3 жыл бұрын
Good info.
@v8tergt653
@v8tergt653 2 жыл бұрын
A tech tip Tuesday idea would be explaining how to size a turbo correctly
@jimgaugler7703
@jimgaugler7703 3 жыл бұрын
Well done young man
@robertdouglas3456
@robertdouglas3456 Жыл бұрын
Nice video young man! 🤩🤩
@rizin2213
@rizin2213 3 жыл бұрын
I see a wheelie bar being installed on my K24 swapped 2005 Lotus and a weight plate mounted up front. Already looking at putting the battery up front.
@georgebarton6098
@georgebarton6098 3 жыл бұрын
Nice video guys.....
@phillipragsdale3382
@phillipragsdale3382 3 жыл бұрын
Makes total sense to me in high powered vehicle
@Anarchy-Is-Liberty
@Anarchy-Is-Liberty 11 ай бұрын
Yep!! We ain't livin' in the '50's, '60's and '70's anymore, welcome to new tech and the 21st century!!
@merctech1979
@merctech1979 2 жыл бұрын
There needs to be a truck tip Tuesday
@grahamerosewarne6656
@grahamerosewarne6656 3 жыл бұрын
Well done love the tech tips 👋👌🤞🤟🤘👎🤜
@boostlife7984
@boostlife7984 3 жыл бұрын
It depends on what you are doing with the car though. I run 160-300 pounds in the bed of my car because I put my car on the street and not the track. Plus I know a guy who has a blazer and runs 400 pounds on a real no prep and whoops up on everyone
@warrencwwatts3994
@warrencwwatts3994 9 ай бұрын
Excellent Video.
@TheBillykurtz
@TheBillykurtz 3 жыл бұрын
MRW: mounting turbos up high is bad Cletus: Can't hear you over all these bald eagles!!!
@yolofullsend
@yolofullsend 3 жыл бұрын
That nova did the perfect wheelie tho 😍
@ziggassedup
@ziggassedup 3 жыл бұрын
That's what I thought.
@danmyers9372
@danmyers9372 3 жыл бұрын
It was right on the edge. Any more power on the hit and it’s going to the moon with damage when it comes down. While power wheelies like this look cool it actually slows the car down. A portion of the energy is propelling the car up vs forward.
@cujo3414
@cujo3414 3 жыл бұрын
Cleetus.... hold my bartle skeet!
@timothygoodsell1446
@timothygoodsell1446 3 жыл бұрын
Great tip but what about truck builds, naturally light rears. And tips for drag trucks would be much appreciated. Thanks for all u guys do to help novices like me💪
@RealSteelStreet
@RealSteelStreet Жыл бұрын
Trucks work too, trust me! I’ve got an all stock type suspension and stock weight + 95 C1500 with a 496ci bbc (with AC even) on Pro 275s that weighs 4160lbs with a little over 60% of that weight on the nose. With 2500lbs out front and only 1660lbs on the rear axle I’m STILL having trouble keeping the front end tied down, and that’s N/A…much less once I install the power adder it was built for 🤦🏻‍♂️ Mono-leafs with CalTracs, good springs, and a decent set of shocks work wonders cuz once it finally hooked, by God it HOOKED 😳 Always thought I’d be fighting traction issues vs lifting issues yet here I am anyway 🤷🏻‍♂️
@timothygoodsell1446
@timothygoodsell1446 Жыл бұрын
Sounds bad ass!
@stevekinney729
@stevekinney729 3 жыл бұрын
Hey Doug check this out I just wrecked my 2000 mustang so I'm thinking do a tube front end on a new edge yes I know there's videos on the fox but explain more for a new edge and also I'd like to see a drag spoiler for a new edge also
@ronmonahan1696
@ronmonahan1696 3 жыл бұрын
doug how about a video on converting to manual brakes? master cylinder bore size and effects on pedal feel and such. thinking about converting but this is true street car and dont want to have to use two feet to stop the car at every stop sign,lol.
@raymondguzman1907
@raymondguzman1907 2 жыл бұрын
Good video thank you for all your information. What do you recommend for the oil return side of the turbos if there mounted below or level to the oil pan oil level? I figure it would be a problem. Do you all have some kind of pump to aid that in a set up like that or is there something else that can be done. About to get to that point on my build and would like to just do it once. Thanks in advance
@kenmaylin4744
@kenmaylin4744 2 жыл бұрын
So, with this said, what's a good starting point weight bias for a new build?
@MrGixxer1300r
@MrGixxer1300r 3 жыл бұрын
Great stuff, new subscriber here
@pappatimvw
@pappatimvw Жыл бұрын
Hi awesome info, I’m interested in a leaf spring car with caltracs. Do you have any pointers on installing these on a station wagon?
@jonhill9564
@jonhill9564 3 жыл бұрын
Such a tease! After watching I went looking for Blazer videos. Where you hiding them...coming soon I hope?
@Julian-eb9ze
@Julian-eb9ze 3 жыл бұрын
Same here I been looking for them too
@michaelspangler2761
@michaelspangler2761 3 жыл бұрын
The scary canary blazer
@slows102
@slows102 3 жыл бұрын
I have a 2nd gen s10 I'm building. Did you guys make that rad support? I'd like to have something like that
@lewisdeclouette6342
@lewisdeclouette6342 3 жыл бұрын
Yes sir
@lsxtuner6126
@lsxtuner6126 3 жыл бұрын
I may have missed it what results did you end up getting out of the GTO build?
@randyhatfield9612
@randyhatfield9612 Жыл бұрын
so what is the part number on the heater delete panel you guys have on that blazer i would love to get one
@-g-lock813
@-g-lock813 3 жыл бұрын
doug OK ANSWER THIS what do u think on onboard co2-? is that the future?
@lynnjr.1842
@lynnjr.1842 29 күн бұрын
So, that whole, Hilo/High Low setup isn’t necessarily what’s best for the car?
@danmyers9372
@danmyers9372 3 жыл бұрын
This thinking is correct for well prepped surfaces but not for the really popular super slick, rough asphalt small tire no prep racing. These cars are all adding hundreds of pounds of weight as far back as possible.
@chuxshed587
@chuxshed587 3 жыл бұрын
Do you think weight bias should change with a lighter car?
@leelandspence5661
@leelandspence5661 3 жыл бұрын
First here lol thanks for the info do you guys know any info on front wheel drives??? Have a channel ALMOST YANKEES and we are doing a front wheel drive atm
@brbntrl2433
@brbntrl2433 3 жыл бұрын
Drag racing you want to be as front heavy as possible. Some SFWD's etc, are at and some over 80% bias in the front.
@janhugo
@janhugo 3 жыл бұрын
And Kyle at Boosted Boiz with his radiator back in his MR2.
@tomlompa6598
@tomlompa6598 3 жыл бұрын
Pretty sure his radiator is in the front dude. What's in and under the back is the intercooler for the turbos.
@janhugo
@janhugo 3 жыл бұрын
@@tomlompa6598 Yes I know! But the intercooler add some weight to! How many pounds do you thinks it is weighing? Wouldn`t it be better to transfer that weight in the front?
@JohnClutch1
@JohnClutch1 Жыл бұрын
I see a pass in 2 segments. Hook and Acceleration. The whole purpose of a suspension is to temporarily transfer weight to the rear so the car hooks. After the tire hooks, it needs to accelerate. And If you add weight to the rear, the tire won't accelerate to its full potential, which explains why you're slow AF 😂
@iVitalzHD
@iVitalzHD 3 жыл бұрын
What about a irs suspension video? Making a fast modern stock style suspension car not just something with a 4 link?
@MotionRaceworksOfficial
@MotionRaceworksOfficial 3 жыл бұрын
This car is leaf spring sir :) but we have Andy’s gto about done and ready to start testing. That’s a great idea and we will make sure to document it!
@iVitalzHD
@iVitalzHD 3 жыл бұрын
@@MotionRaceworksOfficial I forgot this is a leaf spring car lol. But yeah that would be great. Trying to workout the details on gto now. It’s be nice to see what you guys do!
@perryg5500
@perryg5500 3 жыл бұрын
Is the weight bias different if it has a drag radial or slick?
@MotionRaceworksOfficial
@MotionRaceworksOfficial 3 жыл бұрын
No not really
@danmyers9372
@danmyers9372 3 жыл бұрын
Weight bias doesn’t matter as much as the instant center and anti squat settings between the two.
@BEYTEK
@BEYTEK 3 жыл бұрын
so.. i have an IRS car. 800bhp. the no prep track im on hase worse than asphalt traction. you cant put down a 150bhp launch...... So what im getting from your video is put the weight in the back? my car never has or never will wheelie. dosnt make the power.
@suicidal_racing
@suicidal_racing 3 жыл бұрын
55-58% nose weight was a big secret in the radial world back in the early 2000s once mickeys came out.. no prep most i know shoot for 50-52% on the nose. Most dont get how a cars dynamics can change with just moving 5lbs around..you might stand it on the bumper one hit an just sticking 5lbs low on the nose can make it barely hoover the fronts on the next hit or how pulling 5 off the rear an sticking that 5 on the front makes a 10lb swing.. you should go over starting line ratios next..the late monty smith him self opened my eyes to this back in 07/08 an letting the tq do its roll in accelerating you an also intern lets you apply the power faster with the right ratio.
@jaredthomas6808
@jaredthomas6808 3 жыл бұрын
How do I make money building cars? I want to do what I love for a living.
@GrantDolanMusic
@GrantDolanMusic 3 жыл бұрын
So basically don’t do want my favorite youtubers do. Got it.
@tomlompa6598
@tomlompa6598 3 жыл бұрын
What if the vehicle is all wheel drive?
@MotionRaceworksOfficial
@MotionRaceworksOfficial 3 жыл бұрын
It’s probably not going to go very fast if it is. They have a whole different problem set lol
@thefastforte2854
@thefastforte2854 Жыл бұрын
​@@MotionRaceworksOfficialelaborate
@jonhill9564
@jonhill9564 3 жыл бұрын
Support 🇺🇲
@larrymccandless8723
@larrymccandless8723 3 жыл бұрын
I've always thought the 50/50 weight bias was great for road racing but a 55/45 front bias was better for dragging. The lever action around the rear axle being the main reason. If you have too much on the rear of the 'teeter totter' the front won't stay down.
@user-xb4ce8yi7c
@user-xb4ce8yi7c 8 ай бұрын
Please sir I love your company sir my hoep is they to work auto motor rper
@blueracercam20
@blueracercam20 3 жыл бұрын
Boosted Boiz's need to watch this video 😂😂😂
@heavydhit56
@heavydhit56 3 жыл бұрын
and what move the engine?
@jcnpresser
@jcnpresser 3 жыл бұрын
@@heavydhit56 nah, just start racing street and back of track races, forget about the world’s fastest whatever, go out and hurt some big block feelings 😆
@blueracercam20
@blueracercam20 3 жыл бұрын
They just need to understand weight balance in general. Their MR2 would be fast as hell, if they understand not only weight balance but also suspension setups.
@HoneyBadgerRy
@HoneyBadgerRy 3 жыл бұрын
"start out with 500hp NA applications" cries in my engine swapped then turboed the originally NA engine just to make 340whp.
@philb5593
@philb5593 3 жыл бұрын
Inspiration for this video probably came from James and Kyle wrecking their cars with wheelies.
@MotionRaceworksOfficial
@MotionRaceworksOfficial 3 жыл бұрын
James 240 actually has like 62 on the nose believe it or not. I think that short wheel base, shock package, and a bar angle are likely in the causes for that. Kyle is a wild man, he’s gonna have a hard time overcoming those wheelies with a rear engine, but that car sure is cool!!!
@coalstang
@coalstang 3 жыл бұрын
@@MotionRaceworksOfficial thanks for sharing. Man i was 62% on the nose and thought i will never get to a weight bias sweet spot that works. I’m currently swapping to a tube front end and coil overs and light weight front wheels and tires. Light weight brakes.. And a few other tweaks.. all in should be 140lbs lighter on the nose. should be in the 59% on the nose with no ballast anywhere. I was going to chop firewall and move everything back but might try it and see how it does. I need to rethink things. i’m can’t believe the 240 was 62% on the nose. wow.
@RiskIt007
@RiskIt007 2 жыл бұрын
Stick to selling parts.. back half or street racing is an other world. 45 on the front! Yes..
@comboverracing8175
@comboverracing8175 3 жыл бұрын
How about when you spend $8000.00 on billet Gen 1 94mm Garrett turbos for LDR and then three months later the powers to be change the rules to only 88mm turbos and then a few months later Garrett comes out with Gen 2 turbos and your brand new Gen 1's are worth half the price. What should I do? Sell my Gen 1 94mm's at a huge lose? Buy Gen 2 88mm's for another $8000.00 or more? Or let my car sit in the garage and collect dust an watch everybody racing on utube?
@jimkaray
@jimkaray 3 жыл бұрын
Ouch, that's sounds like a classic bad case of unwanted weight into the rear for sure!
@danmyers9372
@danmyers9372 3 жыл бұрын
Sounds like your non turbo competitors whined and cried to get the rules changed cause they couldn’t compete.
@buiItnotbought
@buiItnotbought 3 жыл бұрын
Holy shit. Chance an on3 maybe?
@FlynnTaggart23
@FlynnTaggart23 4 ай бұрын
Take all of this with a grain of salt or a large serve of glue on the track as is the case is for radial cars that run excusively on a "radial track prepped surface" with the tires literally glued to the track... A Pro-mod chassis generally scales up 50/50 as an example of a high power door car without a front weight bias. No small tire no prep guys who are winning are running 62% weight on the front of the car, to that matter no NPK cars are running 62% on the nose either... NONE. Radial and No prep or No prep small tire are three different beasts and the same set up will not make a good car for any two let alone all three.
@richardturk7162
@richardturk7162 3 жыл бұрын
Don't put weight in the back then you say don't put weight in the front. ??
@tomanycooks
@tomanycooks 3 жыл бұрын
you're smarter than you look
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