In general, how much LR bite would be “too much” when trying to get the drive in the car to catch up to the rebound control of the right front? How much Left rear preload would be past the point of good balance?

Excellent info! 👌🏼

Great information. Just getting back to racing (raising kids). Just more info for my setup toolbox. Looking forward to more vid's.

I wish everyone would specify if it is setup for stop and go track or a momentum style track because our 2 setups are polar opposite between the 2. All the setup books seem to be a more old school stop and go setup. We built our own momentum setup and won over the half of our races last year. Listening to this it seems you are also talking about a stop and go setup.

What's crazy is I know all of this but I don't know how to explain it to myself in my head and end up putting myself in loops. Your explanations take all the "junk" out of the thought process in a perfect, succinct way. Thankyou Mr Jay.

Can you give an example of a gps timing device you mentioned?

thanks jay

Too heavy on RF

800 lb spring will keep car off the track, no problem. 500 Will

did you prove anything cant see Jothan Davernport chucking his springsmasher out

HALF of the “shock guys” don’t know crap!! They were decent racers OR decent set ups guys and got a fake rep for being shock gurus! I’ve bought shocks that made my car just flat pitiful! I was ignorant and thought company was winning reg they’d know what I needed than after I ordered I got to thinking @this guys didn’t ask ANYTHING about what the car did, what I thought it needed, etc etc”. Gonna take a for real “shock guy” to ever sell me anymore I’ll just buy off the shelf stuff and keep winning! Yes shocks make a difference but a “dedicated” shock company or guy ain’t needed if you can learn a little and understand how things work

You just need ENOUGH motor not near the best! I’ve won as many races when I was honestly down on motor as I have with plenty

THAT chassis is right for “Joe Bob” don’t mean it’s the best or right for anyone

I want a car that turns on the front tires! First time I’ve heard someone else say it that way

Something that affects the spring is the amount of hysteresis in the spring. It’s a form of damping built into the spring. It’s virtually never measured.

Mr Jay what doe u mean when u are referring to slip joints are u talking about tubing slide inside of another piece of tubing

BALANCE IS THE KEY 🔑 TO 🏆🏁🏎️

Rate a new spring then or set of springs then go run 40 laps on a track and then rate them. For fun a “ 🏎️🧠 info”

Jay, I thought your paraphrase of what Kyle Larson said about the feel of the car not being important was interesting. I think for Kyle that's probably true, but Kyle is arguably the best racer in the world. For an average racer like myself, I don't think I would be able to drive the car to it's full potential if I can't feel it. I think that's part of the challenge with racing simulators such as Iracing, you can't actually feel the car.

I do not wish to doubt anyone on their idea of springs and performance vrs life. However, coming from a science and data kinda guy like myself. Of all the specious talking points(marketing) all over the internet all the time in all the automotive performance world consisting of circle track, drag, street, mud, offroad, closed course and lots more, excluding all industrial applications I have yet to see any data to prove or disprove or track spring performance. Without a doubt something is there, I just find it odd the empirical data seems so elusive. Is there no such machine existing that can repeatedly squish a spring 2 million times and record the squish/release poundage in even intervals? With all those data points, graphed, it would put the debate to rest.

I think by the time the average racer notices the spring is worn out, its been that way for a while, and the car was better as the spring was weakening , so the load/rate that worked the best is a mystery to that crew. The average weekend warrior doesn't have a smasher. Checking the load, scale numbers, ride heights and good documentation with repetivness you can catch a spring trending to weaken. With that you can Narrow down the rate needed and the life span.

Couple years ago I bought a set of afco springs and after 15 races the RF spring was shot. It could not hold ride height. The ride height would drop about 2" every time you moved the car.

Ok on the rebound deal. Don Adams is who started me checking rebound. First I use a rate gauge not a smasher and I dont have backlash or other factors like that. Now when he taught me this I like some racers that have raced everything, build cars and setup cars for others, buy stuff at auctions and so on, I had a LOT of springs! I also test stock springs for the crown vic guys giving them better setups while staying stock. After talking to Don I checked every spring on the place. And believe me. It told a story. The better springs showed out good. The cheaper and older springs showed as much as 20 lbs difference. Certain brands were as you said, pretty much dead on. 4 brands actually. 3 of those are know for being better quality and you should know your springs are one of those 3. Landrum, eibach, BSB, and Pac. I had several Pac because I'm and engine builder and I know they know springs. But they have since quit suspension springs. But back to the testing the worst ones were something like the ones pulled from a car thats been sitting for years after raced to death. The cheap Speedway springs or Tru-coils. Stuff that should have been thrown away a long time ago. Another words the ones past their service life. I threw away a literal truck bed full. Does it make a provable difference? I cant say honestly. But lap times and happier customers think so. But again that could be quality overall shining thru as well. Another great video with lots of great information. I agree with it all. Hope you're staying warm. I am freezing here lol.

Mr. Neal certainly the information you are providing about spring technology comes across very sound in my view.

I got a LR shock from yall

Good video mr Jay. A man can never have enough tools. Tools are almost as addictive as racing lol. I finally bit the bullet and bought a pit lift last year. Best money I’ve ever spent I do believe!!! Next on my list is a load stick and to learn to use it properly.

Just to add a thing or two. Paint your hand tools, so when your buddy borrows them, you can get them back. On the welder, PrimeWeld Mig180 is a great option. About 600 bucks, but it also comes with an aluminum spool gun. They weld great, and can run on a generator. Scales are a must. HF has these inter linkable rubber mats, about 2' square. 12 buck for 4. Get yourself 3 or 4 packs. Great for the shop and track. I have a HF genrator and power washer. 3 years, no problems. Just do maintenance. Just a few things. Oh, that Innova timing light at Summit, the one in the case for 90 bucks or so is awesome!

made it to the end but i think my mind is going into overload.lots of info thanks.

Well the Milwaukee fuel 1/2” is better than the snap on of the same size. I own both. lol.

When im setting front ride heights should that be on or off the shocks, same question when scaling the car should i have front shocks on or off the car?

One of my favorite things to do in the off season is look at old notes and watch the race video of the same date to see how the car was with different setups.

Awesome info as usual. I’ve got to get on top of my notes this year I hope I can make myself stick with it. Happy new year Mr Jay!!!

Jay thanks alot for all the time spent on these videos. I watch it all. The way you break things down for us is great. I'll be having u build my shocks for my factory stock this season. I'll be giving u a call soon

The worst nights are when you know what the car is doing, you know what you want the car to do but you don't know how to get there from here.

Thanks Jay!

Do service other brands of shocks? Looking for options for our afco shocks.

Good information. Buddy you are talking about day-to-day life lol.

Cars today much better then twenty years ago, talking less motor is a proven point back in the early 2000, I had a leaf malti spring and with a good 355 we put it on a four bar car with way more motor and it made the car so so much easier to drive. But today that car and that motor wouldn't get the job done, now flex in old cars can be very dangerous on a safety stand point no matter the class you run, it's just not worth the chance.

Jay, This is one thing me and you have talked about over and over this year. Thank you for going in better detail. We braced our chassis up this winter so hopefully we can come back down on RF spring rate. One thing i will say. Our store bought car vs our home build, Our home built is more rigid by all means especially in the cross brace. And has always been very fast comparatively.

Love what your doing. Wish u all the best with your channel !!

My ford 306 is 25+ lbs lighter than a 604, and that’s with iron heads. I’m very much competitive with the crates out there-maybe a tad under power, but it doesn’t matter come feature time when the tracks slicks off.

I have a Chevelle mod can I run a 2-inch spacer on the right front for a wider front for better handling. I'm already running 1 inch just wondering if it would help the car

Chassis flex is really an un measurable variable, and the repeatabillity is not reliable.