Moparts

Cal Tracs and Drag Radials

Posted By: QTR MILR

Cal Tracs and Drag Radials - 06/27/14 01:27 AM

Is it possible to hit a drag radial too hard with Cal Tracs?? I can't get this thing to hook up.... I've adjusted the shocks and bars to make it hit harder with no luck. I'm thinking I need to adjust it so it doesn't hit as hard??
Posted By: 1967dartgt

Re: Cal Tracs and Drag Radials - 06/27/14 04:15 AM

Yes, you don't want to be to aggressive. The lower hole works best and you want to extend the shock slower then with a slick. I would recommend a good double adjustable shock. How much power are you trying to hook?
Posted By: QTR MILR

Re: Cal Tracs and Drag Radials - 06/27/14 04:26 AM

650 hp in a 3610lb. B-body....
Posted By: 1967dartgt

Re: Cal Tracs and Drag Radials - 06/27/14 04:28 AM

Stick or auto?

I would go bottom hole, 1/8 inch air gap on cal tracs, and what shocks do you run now?
Posted By: QTR MILR

Re: Cal Tracs and Drag Radials - 06/27/14 05:36 AM

Auto... 8" converter approx 5000rpm stall, 4.11 gears, 275-60-15 Hoosier drag radials. It will hook if I load the converter to 2000rpm but it doesn't hit the converter hard enough. Load it to 2500 and it spins.... 60 suffers regardless.... Best 60ft was 1.53 it runs 10:60 at 127mph.... I have Calvert single adjustables I haven't tried the bottom hole been all over with adjustments on the top....
Posted By: Ian

Re: Cal Tracs and Drag Radials - 06/27/14 09:09 AM

Quote:

Yes, you don't want to be to aggressive. The lower hole works best and you want to extend the shock slower then with a slick. I would recommend a good double adjustable shock. How much power are you trying to hook?

spot on
Posted By: QTR MILR

Re: Cal Tracs and Drag Radials - 06/27/14 01:28 PM

Thanks for the tips guys... That's what I was thinking...... I'll be resetting them today!! I'll find out what happens this weekend!!
Posted By: tex013

Re: Cal Tracs and Drag Radials - 06/27/14 02:18 PM

With my Satellite i run lower hole with 1 flat preload as per Calvert Racing. Rancho rear shock on full tight , qa1single adjust front shock on full loose.When i tried looser rear it spun just off the line , tighter front slowed dowm .
5000 vert , 4.1 gear and 275 radial.footbrake.
Average 1.53 best of 1.50 sixty. I don't make your steam though

Tex
Posted By: 383man

Re: Cal Tracs and Drag Radials - 06/27/14 02:41 PM

When you get it right I think you will 60 better. My best is a 1.50 on just SS springs running 10.70's and the Cal Tracs seem to usually do better then SS springs as thats why I think you have more 60 in it. Good luck this weekend. Ron
Posted By: 1967dartgt

Re: Cal Tracs and Drag Radials - 06/27/14 02:43 PM

I would try lower hole, 1/8 airgap, full tight on shocks. Front needs to be loose and have 5 inches of travel, hope you have some 90/10 in it.
Posted By: 6PKRTSE

Re: Cal Tracs and Drag Radials - 06/27/14 03:23 PM

Quote:

Quote:

Yes, you don't want to be to aggressive. The lower hole works best and you want to extend the shock slower then with a slick. I would recommend a good double adjustable shock. How much power are you trying to hook?

spot on



I agree. This is exactly how I have my car set up but have yet to test it out. Still piecing it together.
Posted By: 1967dartgt

Re: Cal Tracs and Drag Radials - 06/27/14 03:32 PM

Back at that power level I was able to go 1.42 60fts on 295/65 hoosier radials. My car also liked to be flashed back then, 1200-1400 at line and it would work best that way.
Posted By: QTR MILR

Re: Cal Tracs and Drag Radials - 06/27/14 03:49 PM

I've got the 90/10's and the required 5" of travel. I've been putting more preload in it trying to hit them harder... That's why I was thinking its time to go the other way....
Posted By: DemonDust

Re: Cal Tracs and Drag Radials - 06/27/14 04:38 PM

So what does the 1/8" gap do vs the stock 2 flats setting that calvert suggests you start with? And how do you set the 1/8" gap? With a .125 shim then pull it out?
Posted By: VernMotor

Re: Cal Tracs and Drag Radials - 06/27/14 04:52 PM

Quote:

So what does the 1/8" gap do vs the stock 2 flats setting that calvert suggests you start with? And how do you set the 1/8" gap? With a .125 shim then pull it out?



Yes I run .060 gap in ours.

To the other racer how much air you trying to run in the tires ?
Posted By: QTR MILR

Re: Cal Tracs and Drag Radials - 06/27/14 05:13 PM

I'm running 18 psi. currently....
Posted By: VernMotor

Re: Cal Tracs and Drag Radials - 06/27/14 10:41 PM

we ran 21-23psi in them
Posted By: Dunnuck Racing

Re: Cal Tracs and Drag Radials - 06/27/14 11:06 PM

Thanks for chiming in Vern, he told me to make the power and he would make it hook!!
How's yours coming along Vern???
Keith
Posted By: 1967dartgt

Re: Cal Tracs and Drag Radials - 06/28/14 04:43 AM

Quote:

So what does the 1/8" gap do vs the stock 2 flats setting that calvert suggests you start with? And how do you set the 1/8" gap? With a .125 shim then pull it out?



Makes it work, I just eyeball it. It's been 1.31 now on 275/60 mickey pros.
Posted By: VernMotor

Re: Cal Tracs and Drag Radials - 06/28/14 04:43 AM

everything is here almost clean up. and ready to put back together. will make a big dent in it this weekend.
Posted By: QTR MILR

Re: Cal Tracs and Drag Radials - 06/28/14 06:51 AM

Thanks for all the tips guys!! Went up in pressure to 20psi and set the bars in the bottom hole with 1/8" gap. The car would dead hook from there!! 60ft still isn't as fast as I think it can be but at least I have a car that hooks to play with...
Posted By: Mr.Yuck

Re: Cal Tracs and Drag Radials - 06/28/14 02:58 PM

Quote:

Yes, you don't want to be to aggressive. The lower hole works best and you want to extend the shock slower then with a slick. I would recommend a good double adjustable shock. How much power are you trying to hook?



Not to hyjack the post, but mine are in the top hole...should I change them? Haven't run the car yet but hoping to get up in the next 2 weeks. I'm running the MT Radial Pro's. and crappy Comp Eng drag shocks. I'm just looking for 1.52-1.55's
Posted By: babarracuda

Re: Cal Tracs and Drag Radials - 06/28/14 03:55 PM

I've never tried 23 PSI. I usually run 17-18 PSI. I will try 23. Since I drive it to the strip(75 mi), it's easier to get the pressure back up from 23 for the ride home.
Posted By: Scamp408

Re: Cal Tracs and Drag Radials - 06/28/14 04:27 PM

325/50/15 top hole a nickel gap leave at 1800 and get a 1.44-1.46
Posted By: D-50

Re: Cal Tracs and Drag Radials - 06/28/14 06:42 PM

Quote:

Quote:

Yes, you don't want to be to aggressive. The lower hole works best and you want to extend the shock slower then with a slick. I would recommend a good double adjustable shock. How much power are you trying to hook?



Not to hyjack the post, but mine are in the top hole...should I change them? Haven't run the car yet but hoping to get up in the next 2 weeks. I'm running the MT Radial Pro's. and crappy Comp Eng drag shocks. I'm just looking for 1.52-1.55's



Mine are in the top hole also, rear shocks set on 9 and the the bolt just touching the spring. I am think about moving to bottom hole to see if it will com down the front end when it leaves. But it hooks good now. I am running M/T 315/60 Drag radials. 1.33 60 ft.

Attached picture 8190212-download.gif
Posted By: Thumperdart

Re: Cal Tracs and Drag Radials - 06/28/14 07:10 PM

Quote:

Quote:

Quote:

Yes, you don't want to be to aggressive. The lower hole works best and you want to extend the shock slower then with a slick. I would recommend a good double adjustable shock. How much power are you trying to hook?



Not to hyjack the post, but mine are in the top hole...should I change them? Haven't run the car yet but hoping to get up in the next 2 weeks. I'm running the MT Radial Pro's. and crappy Comp Eng drag shocks. I'm just looking for 1.52-1.55's



Mine are in the top hole also, rear shocks set on 9 and the the bolt just touching the spring. I am think about moving to bottom hole to see if it will com down the front end when it leaves. But it hooks good now. I am running M/T 315/60 Drag radials. 1.33 60 ft.




Do you always race w/out a hood? Cos I`m thinking there`s a few mph w/one on............
Posted By: D-50

Re: Cal Tracs and Drag Radials - 06/28/14 07:18 PM

Quote:

Quote:

Quote:

Quote:

Yes, you don't want to be to aggressive. The lower hole works best and you want to extend the shock slower then with a slick. I would recommend a good double adjustable shock. How much power are you trying to hook?



Not to hyjack the post, but mine are in the top hole...should I change them? Haven't run the car yet but hoping to get up in the next 2 weeks. I'm running the MT Radial Pro's. and crappy Comp Eng drag shocks. I'm just looking for 1.52-1.55's



Mine are in the top hole also, rear shocks set on 9 and the the bolt just touching the spring. I am think about moving to bottom hole to see if it will com down the front end when it leaves. But it hooks good now. I am running M/T 315/60 Drag radials. 1.33 60 ft.




Do you always race w/out a hood? Cos I`m thinking there`s a few mph w/one on............



Thumper check the thread out that I posted ( hood and scoop color with pictures)I think it is on page 3 now.I don't want to hijack this thread. Tell me what you think.
Posted By: Thumperdart

Re: Cal Tracs and Drag Radials - 06/28/14 08:38 PM

Forgot............ I would think that would help cos I slowed in the 1/8th w/out mine.............
Posted By: an8sec70cuda

Re: Cal Tracs and Drag Radials - 06/29/14 04:16 PM

Bottom hole, 1/4 turn preload, rancho 9 ways on 9, 20 psi in 295-65 radials.
1.320 sixty foot on motor footbraking from a fast idle at 3800+ lbs.
© 2024 Moparts Forums