Basic Drag Radial Shock Adjustment

Рет қаралды 71,022

Күн бұрын

Here’s the basics of adjusting the rear shocks on a drag Radial car. There are some very high end shock companies out there that will custom valve the shocks to your specific combination! If you can, take advantage of their knowledge.

Пікірлер: 64

@billwilliams4394 3 жыл бұрын

You do an outstanding job explaining complicated issues

@TurboJohnRacing 3 жыл бұрын

Thanks

@keefespencer1173 5 жыл бұрын

It's amazing how many people are running an 8.8 rear these days instead of a 12 bolt GM or a Ford 9" or a Dana 60 those used to be the big 3 rears to run with anywhere from a 3.73-4.56 gear for running the 1/4 and 4.88 and bigger for the 8th

@kcind3371 2 жыл бұрын

We’ll cars aren’t making 300hp anymore so.. I’d run out of gear with 456s in 300 feet

@rongravel4585 5 жыл бұрын

Mad I missed this vid 2 months ago. Hit the like before it even started. Hopefully I get out to the track to say what’s up now that the car is back together.

@Joshsmithits 5 жыл бұрын

Good stuff man! Keep it up!

@jeffmcclure32 2 жыл бұрын

Great info and great channel

@williamdowney5032 2 жыл бұрын

Very helpful, thanks

@soundmindtv2911 2 жыл бұрын

Very helpful info.

@trentm7964 4 жыл бұрын

Thanks John!

@terryatadrenalinsgarage5021 4 жыл бұрын

New subscriber here. Found your channel while trying to grasp some suspension basics. You make it look easy! Btw, as someone else mentioned, your car is flying! Keep up the good work. TurboJohn ttf!

@TurboJohnRacing 4 жыл бұрын

Thanks for joining us!

@davidvonanderseck1897 4 жыл бұрын

Love your videos. To bad you couldn’t race the fastest cars in the south. Would have been good. You guys would have stomped them. Lol 💪

@ChevyMustang1 5 жыл бұрын

Great info John I have strange adkustsbles coilovets on my mustang and strange adjustable coilovets struts on the front. They work well for my power level but I don't like the fact that you can t hear the clicks and can barely feel the clicks when I adjust them. Your QA1's have a very audible clicking sound. Keep up the great videos

@TurboJohnRacing 5 жыл бұрын

Thanks

@topdragster365w 4 жыл бұрын

I have same problem with my strange double adj shocks try count clicks cant hear em or feel em always saying was that a click or not or turn em like thats lot movement til feel something. Been 4.80 with em.

@davidvonanderseck1897 4 жыл бұрын

I played this video twice. Taking notes.

@drivinwithdrew7676 5 жыл бұрын

I’m loving these videos man, you really put out loads of invaluable information! I have a 95 extended cab truck with a 500+ hp 383 stroker in it and is nothing compared to what you have. I can’t make it hook on the street, I run a 4l80e with a 3800 rpm stall, I have cheap traction bars, and air shocks on the back with a 275/60/17 hard tire on it. What would you recommend me to try to do to make it hook? Maybe a better tire? Or front suspension? I’ve tried tuning what I have in the rear but it’s just not helping.

@TurboJohnRacing 5 жыл бұрын

Thanks for watching! Low profile tires are hard to hook since there is no sidewall to work! I have very limited time on that type of tire. Probably is nose heavy I would imagine as well, so that is not helping. Yours may be a good candidate for a looser style front shocks/strut. Like a 90/10. It would allow the front to rise some. But it really is trial and error testing! Good luck with it!

@jaredlewis3103 3 жыл бұрын

Cool man 👍 thanks

@sammieanthony1883 2 жыл бұрын

So on a car that initially hooks the tire(radial) then gradually spins would you add more compression?

@TrampusWingo 5 жыл бұрын

Awesome info man. So, loose track, hit the tire harder, and with slicks too, sifted R/C? And tight tracks, or radial/stiffer sidewall, hit the tire less, meaning more/stiff R/C? As for shocks, how much difference is there between, say, QA1, AFCO, and Santhuff? And why?

@TurboJohnRacing 5 жыл бұрын

I’m not real good with slicks, so I don’t have a ton of advice for them, other than to not run them. LOL. On radials, if the track is not as good, if the anti squat is above 100% and the rear separates from the body, you will loosen the extension so it can plant the tire harder. Depending on track bumpiness, compression may have to be loosened to stop tire bounce. But on tight, smooth tracks tighten extension and compression.

@rong648 3 жыл бұрын

Why are the rear shocks mounted upside down?

@robkamstra Жыл бұрын

I always thought that you were supposed tighten the springs to help preload the shocks a bit It looks like the adjuster on the springs are all the way open

@frank3stangs 4 жыл бұрын

Nice video! What springs are you running? 12x150?

@TurboJohnRacing 4 жыл бұрын

I have tried a lot of different ones, but I think now they are 110's

@davidvonanderseck1897 4 жыл бұрын

Thanks I’m working on a 62 c10 need all the help I can get.

@TurboJohnRacing 4 жыл бұрын

Nice, good luck with the project

@Se7enthsonSS Жыл бұрын

How much shock travel do you keep? It looks like MAYBE 2 inches. Is that too low or no?

@Johnnywalker651 4 жыл бұрын

runnin 4 lug rears with discs in back?... what disc set up did you use ? Would love to do the same on my fox.

@TurboJohnRacing 4 жыл бұрын

They are off 87-88 thunderbird turbo coupes. 85-86 mustang svo also had them.

@mrturbo6264 4 жыл бұрын

Part # of shocks

@tomscobra2003 4 жыл бұрын

Good evening John, is there a difference between hp when running drag radials or slicks when dyno tuning for max horsepower ,

@TurboJohnRacing 4 жыл бұрын

I don’t dyno. I would guess the slick would be down a tad, but unless it’s spinning bad I don’t know how much if any. Really don’t know.

@ALEX.THE.RUSSIAN Жыл бұрын

Yes slicks are going to show less power

@anthonywiseman1403 4 жыл бұрын

If your on a true no prep surface like the street how soft should i go ? I have strange single adj shocks on my supercharged sn95 with m/t dr . And it just seems no matter what I release the transbrake it just blows the tires off. I have antiroll bar setup decent. Fronts on full soft

@TurboJohnRacing 4 жыл бұрын

Get someone to get some vids of the car so you can look at them. I have not tried the radials on a road, most everyone is using slicks on the roads around here.

@anthonywiseman1403 4 жыл бұрын

@@TurboJohnRacing from my quick measurements it looks like I'm at 118% antisquat and 49" ic. So I assume when I loosed the shocks way up last night and spun even worse it is separating to quickly and was going the opposite way i needed to lol

@zlatnasto14 4 жыл бұрын

Can i ask what spring length and weight your using? Also what does your ride weight? Cheers

@TurboJohnRacing 4 жыл бұрын

I think they are 110’s in the back, 12” long. Car is 3100 now, 53% ish on the nose

@joechill3905 5 жыл бұрын

What about pinion angle in your car ?

@TurboJohnRacing 5 жыл бұрын

Everything is solid at the pivot points, I have no rubber bushings in the control arms. I like about 2 deg down.

@mgrijalvaespinoza 4 жыл бұрын

whats the part number to those shocks and springs?

@TurboJohnRacing 4 жыл бұрын

110 coil springs, shocks are double adjustable qa1’s

@joshwynn1836 9 ай бұрын

Hey John, you don't happen to have another set of older single adjustable shocks or anything, do you by chance..? I'm looking for something, better than nothing, that I can afford and will work with 700-900ish H.P. If you or any friends has a pair(rear), please let me know!! And will I be able to get by with a double adjustable shock only, or would I be best running a coil over spring..?

@TurboJohnRacing 9 ай бұрын

I don't have anything. But ran normal double adjustable qa1's for a very long time with great success.

@boostinwillie 5 жыл бұрын

What psi you recommend on radials?

@TurboJohnRacing 5 жыл бұрын

It really depends on a lot of factors, 12-19psi. Depends on weight, anti squat, track prep, shock settings, which tire it is.

@stanleyrobinson7309 5 жыл бұрын

How much rear gear you running?

@TurboJohnRacing 5 жыл бұрын

3.55

@chaddyp01 5 жыл бұрын

@@TurboJohnRacing with what gearset in trans

@shaun9156 Жыл бұрын

bro are you missing bolts on your rear girdle?

@TurboJohnRacing Жыл бұрын

Yes, they broke off. That cover never had any issues though.

@Moparmaga-1 4 жыл бұрын

Gotdamm that car of yours straight up flies.. Hitting 7s ? Or faster ? Suspension is something I'd love to know, do you know of any good ways to start learning, books that aren't so technical that a newbie would get lost ?

@TurboJohnRacing 4 жыл бұрын

Hang out, I share a lot of info here. I have not run the quarter in a long time, but it would probably go 7.20 or so.

@Moparmaga-1 4 жыл бұрын

@@TurboJohnRacing DAMN. THATS COOKING. Thanks, my plan was to run leafs but maybe I just figure it out buy & install a links & coilovers rear suspension. It's probably a little lighter also.

@Moparmaga-1 4 жыл бұрын

@@TurboJohnRacing and you have a new subscriber too. I appreciate what u do.