Time to hit the Track.
- Thread starter malex
- Start date
- Local time
- 7:53 AM
- Joined
- Dec 4, 2009
- Messages
- 35,679
- Reaction score
- 46,425
- Location
- Pasadena, Texas
That is acting very similar to what my old car was doing.....only didn't have any vid to help see exactly what it was doing. After making several adjustments to the ladder bars and not much coming from it, I put them back to the way there were and threw on some medium duty 50/50 front shocks. Air pressures were left alone and things were good.
I've found that video before but Ive watched it a few more times now. Valuable information! Stiff shocks helped, as much air as possible and keep the front from topping out too quickly
Appreciate all the help everyone!
Last edited:
Time to hit the track again. New driveshaft is in place, ready to go, hoping to correct traction issues and a new personal best, pending weather.
New Strange DOM driveshaft, C/M ends, billet yokes. High strength u joints and u-bolts.
Trans removed, all checked over, good to go.
Going into the weekend with things stiffened up lots.
Added 10 lbs onto the car with the new driveshaft!
New Strange DOM driveshaft, C/M ends, billet yokes. High strength u joints and u-bolts.
Trans removed, all checked over, good to go.
Going into the weekend with things stiffened up lots.
Added 10 lbs onto the car with the new driveshaft!
gtxracer
Well-Known Member
- Local time
- 5:53 AM
- Joined
- Nov 24, 2011
- Messages
- 656
- Reaction score
- 508
- Location
- Lake Stevens, Washington
Car looks great Malex and here's wishing you the best of luck. Make some good hits and let us know.
Bob
Bob
One day down and a new day today. Pending rain.
Still dealing with the rear of the car rising even with shocks on full stiff. The worst problem is the spinning. I got rid of the bouncing with lower tire pressure but I’m killing the sidewalls. Leaving at 3000, wrinkle spin. Best I could get was a 1.44 60’. 10.28 @ 130 mph. Terrible air, hot and humid. Went out in the second round, my fault. Sleeping at the tree.
Bolted in the old M/T’s and will work with those today.
Shot of my leaves today on the stiff wall Hoosiers with 12 lbs of air.
Still dealing with the rear of the car rising even with shocks on full stiff. The worst problem is the spinning. I got rid of the bouncing with lower tire pressure but I’m killing the sidewalls. Leaving at 3000, wrinkle spin. Best I could get was a 1.44 60’. 10.28 @ 130 mph. Terrible air, hot and humid. Went out in the second round, my fault. Sleeping at the tree.
Bolted in the old M/T’s and will work with those today.
Shot of my leaves today on the stiff wall Hoosiers with 12 lbs of air.
Last edited:
Do you run tubes? Are the front shocks tight on rebound?
Doug
Doug
—
No tubes. Front shock rebound set on 6.
First run on my old tires worked better today.
Will make a change or 2 and try it again. More rear air pressure for sure. A new fast ET today.
You are getting there. People kept telling me to run tubes. After 5 years I gave in. They were right. My tires are taller than yours and they still need 13.5lbs. tighten up those front shocks.
Doug
Doug
So this weekend went not too bad. A new ET best of 10.16 @ 131.96 mph.
I went out in the first round with a -.004 red today. My lights today were: .010, .009, -.001 and -.004.
My rear QA1 shocks were full tight and my rise is still maxing out to where it will unload the rear tires. The leaf springs run out of travel it looks like and then it unloads. So That has to be my immediate repair. Doug mentioned shock valving. Perhaps these QA1’s can be valved to be stiffer or maybe Calvert shocks have more restrictive valving out of the box. I tightened up the front shocks lots on the third pass and it kept the front down but the rear came up and unloaded worse. I haven’t given tubes much thought, yet, but I’m certainly game. I’ll see what I can find for video.
View attachment 619876
I went out in the first round with a -.004 red today. My lights today were: .010, .009, -.001 and -.004.
My rear QA1 shocks were full tight and my rise is still maxing out to where it will unload the rear tires. The leaf springs run out of travel it looks like and then it unloads. So That has to be my immediate repair. Doug mentioned shock valving. Perhaps these QA1’s can be valved to be stiffer or maybe Calvert shocks have more restrictive valving out of the box. I tightened up the front shocks lots on the third pass and it kept the front down but the rear came up and unloaded worse. I haven’t given tubes much thought, yet, but I’m certainly game. I’ll see what I can find for video.
View attachment 619876
Last edited:
It has enough power now that the tire is over worked. Tubes will help. It may need the front spring eye location lowered. That's what controls the amount of rise. The shocks control the speed at which it rises. It's rising far enough it may be topping out the shock. This is Cal Track , correct? Send the video to Calvert and see what he says. We leave at about 4200 on the brake with Cal Tracks on my sons 62. It doesn't rise near that far. But it does have a very good set of double adjustable shocks.
Doug
Doug
Tex013
Well-Known Member
at your HP I would not bother with Calvert shocks , single adjustable . Just get better shocks . I gave up on Calvert/Rancho rears when I went to the 505 . I now have Viking . You can easily change valving if need be with these .
As Doug said and video shows , crushing tyre . So more psi or less hit on tyre - or a bit of both
Car is certainly getting there
Tex
As Doug said and video shows , crushing tyre . So more psi or less hit on tyre - or a bit of both
Car is certainly getting there
Tex
—-
Thanks Tex. I’ve made inquiries to Cal Trac, got a video to them as Doug suggested,will see what they think. I run the QA1 double adjustables all the way around now, they should be good quality. But will get the part number for them and find out what valving they come with. The car is making good power, just need to hit that combination.
Mike Gaines
Well-Known Member
- Local time
- 5:53 AM
- Joined
- Apr 17, 2014
- Messages
- 2,101
- Reaction score
- 4,335
- Location
- Ahwahnee, (Fresno) California
Mike,
I run 17lbs of air (with lots of experimenting to determine that is the best for MY car) with my stiff sidewall Hoosiers and I run tubes also.
I leave at 3600 off the transbrake with 1.40 to 1.43 typical 60' times.'
You first pix above sure looks like that 12lbs of air is way too low the way it is crushing that stiff sidewall Hoosier.
I think that if you get the 60' down to 1.40 you could go 10.10 or close to it.
Anyway, good job. Love your car.
Just to repeat what I have posted before...I run just the Cal Trac Front shocks with 5.5" of front free travel and I run the Cal Trac 9 Way Adj rear shocks set on 1 (which is full loose).
I talked with the Cal Trac Tech Friday and he repeated that is their Correct Recommendation. I told him my rear "lifts" about 2" coming off the line and he said that is fine. He said only to stiffen them up to maybe 3 or so if the car breaks traction about 20' out or so. I does not break loose at all so I leave them on setting #1.
Here is a pix of my rear tire's typical wrinkle with 17lbs of air and a 1.40 60'
At rest, the rear wheel fender lip sits even with the top of the wheel. You can see that the rear has "lifted" about 2 inches at launch, which Cal Trac says is just fine.
By the way, I beat that Altered Wheel Base 1965 Dodge Coronet Hemi on that run. It was the first round of the California Hot Rod Reunion race
I run 17lbs of air (with lots of experimenting to determine that is the best for MY car) with my stiff sidewall Hoosiers and I run tubes also.
I leave at 3600 off the transbrake with 1.40 to 1.43 typical 60' times.'
You first pix above sure looks like that 12lbs of air is way too low the way it is crushing that stiff sidewall Hoosier.
I think that if you get the 60' down to 1.40 you could go 10.10 or close to it.
Anyway, good job. Love your car.
Just to repeat what I have posted before...I run just the Cal Trac Front shocks with 5.5" of front free travel and I run the Cal Trac 9 Way Adj rear shocks set on 1 (which is full loose).
I talked with the Cal Trac Tech Friday and he repeated that is their Correct Recommendation. I told him my rear "lifts" about 2" coming off the line and he said that is fine. He said only to stiffen them up to maybe 3 or so if the car breaks traction about 20' out or so. I does not break loose at all so I leave them on setting #1.
Here is a pix of my rear tire's typical wrinkle with 17lbs of air and a 1.40 60'
At rest, the rear wheel fender lip sits even with the top of the wheel. You can see that the rear has "lifted" about 2 inches at launch, which Cal Trac says is just fine.
By the way, I beat that Altered Wheel Base 1965 Dodge Coronet Hemi on that run. It was the first round of the California Hot Rod Reunion race
Last edited:
——
Thanks Mike. Yes at 16 lbs of air my Car was dribbling down the track like it was a basketball. I’m going with tubes going forwards and looking deeper into getting the car to leave right. With that will come some better times and mph.
LemonWedge
Well-Known Member
You know Malex, I just read through the last 2 pages of this thread, and I can’t help but think that when there’s a lot of different suggestions, things can get a little confusing. So here’s me adding my suggestion: Call John Gay at Calvert. Those guys are really good about helping customers, and no one knows how to make their stuff work better than they do. For a car like yours, my guess is they will go beyond your hopes in how helpful they may be.
Best luck!!
Best luck!!
---
Hi LW. Yes, I have been in touch with John @ Calvert. He explained to me how they like to see shock settings on trans brake cars, which is the same as what Mike Gaines has stated. I've dealt with John a few years ago as well and he knows the former owner of my car out in Langcaster. It really is a small world!
Won't be long till your in the 9s. Keep after it, it will come.
---
Thanks 69GTX. I'm keeping after it, and it's going to come. The biggest change this year was the Ultimate converter I believe and it spanks those tires good with solid TQ. I've got to make a couple of mods under the car and there's tubes on order. (listening to the knowledgable fast guys). Into the 9's? Just once, maybe twice. How's your sweet GTX coming?
Similar threads
