Let's talk more about Leaf Springs for Drag Racing!!!! Get you some! Calverts, Smith Assassins, ladder bars.... .some cool products! Also, I ask for help at the end on the Studebaker. Please give me some info back!!!

I need a neighbor like you. Thanks for the info got new knowledge on leaf spring dynamics. ❤

Good stuff, Thank you 👍

Thank you for the video, and thank you for the shout out to healthcare providers. As a nurse, it’s means a lot to hear a shout out from the racing community. Don’t push yourself too hard, get well soon! Looking forward to more education with suspension tuning.

We are Thankful for your Recovery

Thanks for the video Kevin. Glad to have you back!

This video is GOLD!! Thank you!

This has helped tremendously thank you so much

Thanks Kevin. Love your videos. Hope your feeling better.

Awesome video. Simple info that is so useful, simple and complicated at the same time. Thank you!

Thank you kevin! Iove your videos. Expecialy the leaf spring stuff.

Awesome video

Glad you're doing better after covid! Thanks for the videos and glad you're going to do more torque arm videos.

Thank you for sharing your knowledge. I really liked the ARC switch panel and relay board I put in my car.

Great content. Very educational.

Great video! Adding this to my reference materials for sure.

Thank you for your content hope you get better soon my friend

I’ve been watching you every since I bought my Calverts thanks for your help buddy keep the info coming

Love the content Kevin thanks for these videos they have really helped me

I'm just about to install a set of caltracs on my 2005 ford falcon ute, the information and experience you share has been extremely valuable. Thanks Kev.

Great video, thanks

Awesome video Kevin! It’s taken awhile for me to understand a lot of what you went over. I wish I saw this a year ago. Lol. Great info and I’m glad someone finally talked about it.

Thanks for the info...I will be applying it.

I had covid pneumonia back in sept. Was in the hospital for 3 weeks and on oxygen for a month and a half. Worse time of my life. Prayers for a speedy recovery.

Man glad your ok! For some reason I haven't been seeing your videos popping up so I went and found them. Some more good info especially since I'm picking up a pretty serious 468 bbc for my camaro.

Thanks Bro appreciated

I need more of your leaf spring suspensions .

Great info Kevin. Thanks for the help with assassin bars. I would look into speedwire or spaghetti menders for switch panels and relay boards

Great video 👍🏻

Glad you're back, and hope you feel 100% soon. Electronics recommendations depends on how computer dependent you want to be. I prefer the Racepak PDU, but all the circuits need programming. The Leash boards are nice, high quality stuff, just a little more "conventional" with relays and fuses.

Thank you for the awesome video! Also, I have a complete Smith Racecraft Assassin bar setup, Tin soldiers leaf spring mount kit, custom split mono leaf springs, and Viking double adjustable shocks , all new in boxes for a nova if you have a need (I bought another chassis that’s already back halved)

Thanks for the shoutout and the awesome videos!

Thanks!

Thanks Kevin, I appreciate all your help and knowledge your sharing with us. I'm following every detail for leafspring suspension. I have sliders installed just as you have described. Calvert monoleaf & caltrac traction bars. All rubber removed from spring mounts. I picked up on 4 degrees pinion angle on this video . So that's my next step. Also have 9 way Calvert rear shocks that I may need to get double adjustable coil over shocks. I installed tubular upper and lower control arms on front with coil over shocks up front. But single adjustable. (Aldan American) I'm running street 71 Camaro 434 sbc, 3500 stall 410 - 12 bolt M/T 275 60 R. Trying to get a launch. Still frying tires.

ARC-Auto Rod Controls 8000R - ARC Flat Touch Switch Panels. Just installed this on a pulling truck very neat and easy

If you ever take a vacation to Puerto Rico let me know cause I sure can use your help. Just removed 2 leaf springs from my 01 2500hd Silverado. Feels more soft. With the 4 leafs felt stiff. Hopefully it will get better 60ft. Thanks

Thank u hope u feel btr

Appreciate the information as always! Would love to see a video on diesel 4x4 suspension for drag racing, with 63% nose weight, as well as more fbody/torque arm stuff.

More great content! Glad to hear you made it through the C okay. Thanks! You speak to hitting "the slick" a lot. Do most of your theories also apply to Drag Radials?

Awsome video. Ya I need every help I can get. I building a street car in a 84 camaro. I like to go leaf spring but don't know how to do a ride height With 28s I quickly learned to get rods of my stock springs. Thanks for these videos Ya big Chief jist talked about this

I run leaf's and they are tough but they do work when you get them hooked up right.

As far as wiring advice, at this point I find it hard to argue against just converting to a solid state PDM box, like a Moristech/Black Box P14, they just make life SO EASY compared to wiring up individual relays & fuses for each circuit, not to mention being programmable. The P14 is really reasonable at $925 too, even the 30 channel P30, if 14 channels isn't enough, is only $1400(compared to $3150 for a 30ch Motec PDM - but that is Motec after all lol). SRC Billy's truck is pretty wild - running as fast as it does, on every surface they race on, and with completely stock suspension at all 4 corners + CalTracs & Viking shocks front and rear! REALLY want to see them run some split monos & sliders, but it's hard to say they're "doing it wrong" given the results. I've been thinking about building a Ranger for a while since I saw that Calvert has split monos & CalTracs(both spring over & spring under options too, which is pretty cool) for them, and, once I found their channel and saw what that super basic S10 can do, it completely sold me on a leaf build. I'm sure I'm going to be referencing both of these leaf spring videos in the future.

I’m very happy with my leash electronics relay board and switch panel. Although, I don’t believe they make the switch panels anymore

Love your videos and the time spent to make them. I'm building a 62 Falcon with Caltracs, split monos and fabricating the rear frame section myself at home. I'm making the front leaf spring mount adjustable by about 3.75". Am I overthinking it, in that I need to make the slider mount the same adjustable? I would think if not, the pinion angle would change if I just move the front mount up or down. In the same line of thought, would it be a tuning aid or just add more complexity to tuning if I used a stack of shims to adjust the rear height. My front hole centers are 1" apart. So say a 3/4" spacer then a stack of .075" shims. Then you could change the pinion angle in small increments up or down. Is that even worth the time and effort??

👍👍👍

K&R super duty wiring kit

How about some mud truck with leaf springs

With a fuel tech I assume it has enough inputs and outputs for a simple drag race car. My megasquirt does. So let the fuel tech ground switch a relay for all your devices which also lets you set on off parameters and let’s you data log them. With battery in the trunk, I run battery cable to lugs on the firewall and then battery cables from there to the front of the car too. That way all my power to fans, water pumps, headlights, etc, are short runs controlled buy ground switch from ecu. I even started using the relays with built in fuses to simplify things. So when I make a pass I have one toggle switch to power on ecu which in turn runs all my pumps and fans. The only other toggle switch I have is for head lamps for night racing. Keeps it pretty simple, no fancy relay motherboards or $1500 power control smart wire boxes. Just heavy wire and $10 relays. Good luck.

I'm running a Bicknel torque arm. can you talk about torque arms on leaf springs?

Can u talk about engine placement and why cara that can have their engines placed further back helps in no prep/ street racing. Also how to measure a car to determine if it has more room to place engine further back with factory firewall and front suspension.

So can I use sliders in stock springs and should I take any of the spring lawers out?

How do you mount or angle the perch on a truck where the hanger is pointed up and now down at the ground?

kevin check out K&R performance, but i have to be honest "home grow" is easy and maybe not a bad option. many videos.

I am installing leaf sliders on a 1st gen S10 with calvert bars. I have seen some people say to set the sliders at a 5 degree angle. does anyone know the proper angle to set them at? Should I try to match the leaf angle? Any help would be greatly appreciated!

It looks like it's a miniature 4 link (Cal Trac) ?

What kind of shock travel is ideal with leaf spring ladder bar set up, at ride height about how much shock shaft/compression should I have? I just replaced mine and gave qa1 all the info on my set up and after I mounted them there is only 1/2" of shock down travel (shock is only 1/2" from being totally compressed) at ride height... It's strictly a track car so not worried about ride quality. Do I need a shorter bodied shock?

Hello Kevin, I'm a new subscriber that just found your channel, after watchng this video I wondered what your opinion is on the newer style leaf spring slider that has the long drop in it allowing large amounts of chassis seperation. The combo would be bbc turbocharged, manual transmission, 275/60r15 tire

Please forgive my ignorance, but what is the "separation" you keep referring to?

Like this shit!!!

I heard MSD makes a good relay panel

What pound of torque you recommend to tight the hangers? Also is safe use them loose for the street?

Any thoughts on slide-a-links as opposed to calverts?

do you have any advice on a wheelie bar for a leaf spring with Calvert bars?

Kevin I sent you a comment before I have 67 mustang with split mono leaf Calvert suspension I bought the qa1 coilover suspension kit I also bought the bracket from Nikki Bobby Incorporated which is Alex Taylor's fiance he calls it a gap bracket it's the bracket that goes underneath the leaf spring where the axle is instead of having one hole where the bar goes in it's got four and it also has a place where your coilover shock can go I was hoping you could tell me how come I'm not seeing a lot of leaf springs with coilovers that are going to these brackets I see coilovers with the stock position where they put the shocks at or it's mounting to the axle tube please get back to me and maybe give me some information thank you

What's your thoughts on the Competition Engineering J-bolt traction bars, I have a set on my 1969 Camaro would the Cal tracs be worth the investment ?

Kevin I just posted a video and was wondering if you could give me a few pointers on it if not I understand completely thanks.

So where do the shackles need to be positioned if they're inverted hangers where the leaf is above the shackle?? Seems just vertical is what mine sit at so I'd guess the shackle will tilt forward when travel is inhibited. I see no way to tilt them backwards at all.

Hey I have a question should the front eye on leaf spring with caltrac be inline with the rear axle. Meaning the same distance from center to the ground.

Hey man, thank you for sending me part two of leaf spring setups. I was patient for the whole video before comment, but sure enough you DID comment on shackles, and that great! I just have two questions left, I suppose. Well, 3, really, but only two are applicable at this moment in my life. 1. You seem to make most of your drawings with the spring mounted UNDER the axle (lower right height), is this intended by you, and regardless of that, is it an acceptable setup for "caltracs" style kits despite how it seems they want to mount to the axle directly? Also, they look to hang low, if you had a regular leaf stack, would they hang TOO low??? 2. You demonstrated the leaf hanger shackle pointing down (top anchor to frame) on most GM trucks, this is reversed and the hanger points up (bottom anchor to frame, chassis hangs from spring instead of laying on spring, essentially). Now, this is said to allow the shackle to rotate all the way forward and eventually down, increasing suspension travel. It's actually a mod some guys do on their leaf spring trucks for off-roading because of this. My question is, since the upside down shackle allows this greater range of movement, is the "make the shackle point backwards" part of your suggestions still applicable or AS necessary? 3. And I guess for shiggles, my final question is, if someone is fabricating or has to fabricate their own suspension, what do you think is the best compromise between drag race duty and handling duty for a semi-daily vehicle that also has to retain its utility factor (a small pickup, I have a Ranger)? I've been told 4-links with heim joints handle well, and that torque arms are the closest "do it all" while also being "set and forget" when it comes to solid axles, and from what I'm understanding IRS is just a fuster-cluck in pretty much every aspect for a builder either starting from scratch or trying to convert. I've also been told that past 1/2 to 1 inch of deflection, IRS and Solid axle react the same due to sway bars and how shock force work, anyway, and the only "benefit" is alignment abilities(which, IMO can make a seconds difference or more on a road course) And of course, I've also read that it's more than just objective ability on a perfectly smooth track, and that IRS inspires _confidence_ where solid axles (and especially leafs only) feel jumpy and unsafe in any kind of bumpy or imperfect (read street/canyon carving) turn. At this point I'm so overloaded with information IDK what to think!

Speedwire

Where do you live at what state & Town?

Is your middle name “Bloody” by any chance?

Leash electronics

TRADUCTOR PLEASE !!

arc