Rear Steer
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- čas přidán 8. 03. 2017
- A while back, we did a six-part Rear Suspension Series that covered all of the basics to running a 4-link suspension. In this video, we are going to get a little more advanced by explaining the concept of Rear Steer and how it can be used on your race car.
If you haven’t checked out the original Rear Suspension Series, be sure to do so.
Rear Suspension Series - dragrace.academy/playlist/rear...
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The information contained in this video is based on the opinion of Tim McAmis and his 30+ years in the motorsport and manufacturing industries. Any action you take based upon the content provided shall be done at your own risk. TMRC and its affiliates are not liable for any losses and/or damages in connection with the use of this information. - Auta a dopravní prostředky
I have built chassis since I was literally a kid with my dad and I am 50 yrs old and never heard anyone explain rear steer as simple as you did with the forklift I have now started using that to make these guys understand!! I guess that's why your the damn man!!
Great, great info. I appreciate all of your zips on set ups. I understand the ammount of time and expense that you offer to help us all. Thank you so very much.
TIM Love your videos and more than that Love the straight talk NO BULLSHIT Approach. I'm retired Army and that's the way you get shit done. Would love to come and be your free help and learn from the Master for a year or longer whatever it would take. Please keep them coming.
"You can crank on it and crank on it until you break the rod ends off" LMAO! Nice work Tim
I have grown up and worked on funny cars my whole life . I remember when promod was wild bunch . Love the videos and Tims commentary 😂!!
I've binge watched a bunch of these videos and you're an awesome teacher. Thank you.
Some fantastic content you put out on CZcams Tim, something that alot of builders like yourself wouldn't do. Have learnt alot from your videos, which means they are effective, and really appreciate you taking the time to put it together to share your vast depth of experience and knowledge in this area. Deserve many more subscribers thats for sure. Thanks again.
Tim, appreciate your great work and knowledge sharing with the community. You did not mention that when putting rear steer in the car, it's going to swing the wheelie bars a fair amount to one side, which should be then adjusted back to the chassis centerline. This question gets frequently asked and adjusting them often gets ignored or overlooked.
Well put, perfect explanation Tim... Thank you! Respectfully, Seth
love to series. Learning a lot!!! thank you. Will be buying from you guys shortly
Very informative, excellent work here, just wondered if you could do an installment on setting the ever crucial bump steer.....that seems to be one operation that really can leave a guy in the dark.
Thorough explanation, cheers.
After you work thru it all, it’s little more than It’s a few simple geometric relationships....but it takes a great deal of work and experience to make it all work.
Great explanation!
thank you. your videos are always very helpfull
Thanks for sharing your knowledge.
Lets talk chassis design and tubing placement,may be a future video.
The forklift analogy was perfect as soon as you said that i got it....if i had teacher's like you back in school i be alot smarter dammit.
Probably not.........
@Reality Lives prove it bitch
Earth is not flat
Ron Spear 🤣😂😅 yeah I know
absolute gold thank you sir!
Wonderful explanation
Wooosh. right over my head. Took a few times watching it but i get it.
Tim. Awesome videos. Can you recommend what’s the best placements for the parachutes. Side by side or on each corner of the back of the car. Thanks for the videos..
not sure if you have a vid of it but how would you adjust a 4 link to keep from wheeling super crazy ?....PS love the vid really helpful info
Outstanding.
the jest of it is this. when you change the angle of the rear axel it is actually moving the center line of the chassis. whichever side of the chassis has the shorter wheelbase is the way the car wants to lead. pavement super late models and drag cars are very precise settings. dirt late models and open wheel mods the axel moves forward as much as 4" on the lr and the housing moves left 2" when the car is "up on the bars" . good stuff.
A lot of comments before mine said it perfectly good job.
Great vid! If you have rear steer in the car, and it picks the front wheels up on the launch and carries the tires for 30-50 feet will that push the car left instead of right? Thanks
I thought it was placement of a Chevy steer box in place of Ford steer box . Some said this would get the car out of control of hit in front . I worked for Banjo when this was done. We used a 1965 front frame clip to build the fixtures. David Bridwell .
legit shit as always Tim! keep up the great work with these vids man, always learning something new.
So much good shit in your video's.. thank you sir!
Tim do you go neutral settings first, then rear steer with anti roll connected on just one side, both or not at all?
Then install some pre load, then re center wish bone.
I guess my question is sequence of whats connected 1st, 2nd, 3rd?
@timmcamis
good stuff
Can this be used on a ladder bar car as well? I have one that goes left on the hit but if I put one flat of negative it goes right
Awsome info..How bout a ladder bar vid.
I think my brain just exploded lol. Smart man and a good teacher
I ♡ TMRC
What happens after the launch? Do you scrub the front tires because you now steer left because it wants to steer right?
I have never worked on a 4 link.. I want to put a heavier rear in my '79 Camaro but I want high performance cornering too . This seems to be straight line only ...
My first question is: I assume this whole video applies to spools only ? For a Street car I like the Eaton True trac.. I wonder if this would even apply to any kind of differential as opposed to a spool..
There as so many Terms here Rear steer and positive vs Negative.. A beginner like me would really need a manual with drawings and definitions of all the terms..
There are books out there for things I work with such as snowmobile clutches..
How do they keep the rear end from moving left or right? These racecars are powerful.
Leaf spring suspension we center the pumpkin but one shaft is four inch longer on one side what happens
I am tracking you. Mr Tim i am building a gasser with fifty inch ladder bars i have been thinking about adding two upper bars short one like a four link to ad in traction and give me a way to add preload do you think it will work thanks.
How does a fella know if a caltracs s10 has rear steer in it VS somthings just out if Wack and bound up?
Tim "messiah" McAmis
Would having a pretty big " rear wheel steering" set up affect the ET, as the car is scrubbing the rear tyres .
Yes, it could. However, if you have so much that it is causing that much ET loss, there are usually other problems that are being compensated for. When used correctly, rear steer would actually help you gain ET by making the car run straight and more controllable.
Does this pre load set up work for open wheel also?
Jamessr23.....yes, it is still physics. It doesn't care if it is a pro mod, a cup car, an Indy car, a go kart. Look at dirt late model cars and how much they hike up on the LR and how far forward that wheel pulls forward.
And is correct you always just adjust the passenger side?
👍👍
And this is what separates the pros from most of the weekend warriors. And what you didn't mention is why the chassis build is so critical to the car. If the chassis is off then your point of measurements will be off. Since we're talking about small adjustments very small imperfections in a chassis could throw all of that off. All the notes you use on an old car might not work on the new car because of that.
Awesome videos. No B.S. Straight goods. Big fan. But...I'm a Jeeper (I think that's probably why I get this in my feed). My question is: when do drag racers use rear steer or even have time to use it?
BionicForester19 lol not literally like in monster trucks, it's a term they use to say how the rear end & 4 link could steer the car
TEEMONEY26
Steer the car? There's that verb again. How do you steer the rear if it isn't steering we're talking about?
Are you meaning to say adjusting your arm lengths via adjustable rod ends will direct a race car one direction or another?
If so, that's old hat stuff to anyone that knows suspension but your "rear steer" terminology is very confusing.
BionicForester19 rear steer on a drag car is a preset not an active movement, torque twists the chassis and rear differential specially on a hard launch in a big power car so you preset your rear steer to to launch your car straight when you launch when everything is twisted up
@@Jarod1941ear steer in this context is referring to rear thrust drive angle. if the car wants to turn slightly left after launch- you are losing speed by steering right to compensate, if you adjust the drive angle slightly to neutralize this- next pass you can keep the wheel dead straight and not loose that speed.
Isn't Lead the same as rear steer????
I hope there is a shock video soon.
Sharky Mark sameeeeee asf
You can't go too crazy with the rear steer alone, it's pretty hard on the tail shaft uni's; makes a big mess.
instagram.com/p/CJPFKEbs0mv/ came here for the title, different application. enjoyed the Lecture on Rear Steer and correcting for torsional twist in Drag Racing
Daddy Dave nitrous Nova did that went left crashed 1.0,1963 Chevy 11, he need rear steer adj.
I dont understand why no wone have commented that what he says is wrong ,
the right tire does NOT get plantet harder during launch the car does NOT go to the left. normal behaivure of a drag car is the opposite , the torque of the driveshaft lifts the right wheel , and the car goes to the right.
814th 👍's up guys thanks for the great information and taking the time for us all
i know a lil bout this.lol
Physical shit.... yup, I’m subscribed
Thanks for explaining the “black magic” of suspension setups that no one wants you to know.
Every day is a school day …
My car talks to me all of the time on the track....through the seat, haha~!
So it’s not voodoo black magic, eh?! Hmmm ...
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