|
Re: Drag Radial or Bias Ply for Heavy 4spd Car?
[Re: 68LAR]
#1080070
09/22/11 10:53 AM
09/22/11 10:53 AM
|
Joined: Jan 2003
Posts: 8,160
Plymouth, MI
Blusmbl
master
|
master
Joined: Jan 2003
Posts: 8,160
Plymouth, MI
|
Just like everybody else mentioned, get the bias plys. My QTP's worked a ton better both on the street and on the track than a set of drag radials.
I had a 29x11.50 QTP on my 68 Charger, it fit without hitting anything but was on the tight side.
'18 Ford Raptor, random motorcycles, 1968 Plymouth Fury III - 11.37 @ 118
|
|
|
Re: Drag Radial or Bias Ply for Heavy 4spd Car?
[Re: 4spdJohnny]
#1080073
09/22/11 06:17 PM
09/22/11 06:17 PM
|
Joined: Apr 2009
Posts: 3,414
Toronto
mshred
master
|
master
Joined: Apr 2009
Posts: 3,414
Toronto
|
bias ply all the way! Radials are just going to make you chase your tail and are a waste of time on a stick car, my buddy had the problem with his mustang...as far as I know the biggest difference between the hoosiers and M/T's is that the hoosier is softer...I run the M/T's myself, in the 28x12.5 size, and they work awesome..I have about 12psi in them hot when i run, and the wrinkle and bite hard! Also, in regards to driving with radials on the front and bias plies on the back- I have 165/80R15 skinnies on 4" rims up front with my e/t street's in the back...I drive my car everywhere like this! the two hours of highway to the track, in downpours, etc....you name it i drive it....It's really no big deal, as long as you watch for the tar lines lol...to all the guys I know who say its crazy, I say sack up because you don't know how to drive obviously  good luck 
|
|
|
Re: Drag Radial or Bias Ply for Heavy 4spd Car?
[Re: mshred]
#1080074
09/23/11 04:03 AM
09/23/11 04:03 AM
|
Joined: Jan 2003
Posts: 27,421
Balt. Md
383man
Too Many Posts
|
Too Many Posts
Joined: Jan 2003
Posts: 27,421
Balt. Md
|
|
|
|
Re: Drag Radial or Bias Ply for Heavy 4spd Car?
[Re: 383man]
#1080075
09/23/11 03:22 PM
09/23/11 03:22 PM
|
Joined: Apr 2009
Posts: 3,414
Toronto
mshred
master
|
master
Joined: Apr 2009
Posts: 3,414
Toronto
|
Quote:
Quote:
bias ply all the way! Radials are just going to make you chase your tail and are a waste of time on a stick car, my buddy had the problem with his mustang...as far as I know the biggest difference between the hoosiers and M/T's is that the hoosier is softer...I run the M/T's myself, in the 28x12.5 size, and they work awesome..I have about 12psi in them hot when i run, and the wrinkle and bite hard!
Also, in regards to driving with radials on the front and bias plies on the back- I have 165/80R15 skinnies on 4" rims up front with my e/t street's in the back...I drive my car everywhere like this! the two hours of highway to the track, in downpours, etc....you name it i drive it....It's really no big deal, as long as you watch for the tar lines lol...to all the guys I know who say its crazy, I say sack up because you don't know how to drive obviously
good luck
I will say that when I ran the Hoosier bias QTP tires on the back of my 63 and the radial tires up front that it was not to bad on the track but could feel kinda squirley at times on the roads. Myself I got used to it but when my son drove it he really noticed it. Well I decided to try the Hoosier radial slicks and I will say it was like night and day. It handled like a Caddy with the radials out back also. Even at the track it is so much nicer and does not want to wonder at all. As you said yes you can tolerate it but since I drive my 63 alot it's just not worth the hassle when it handles so much better with either radials or bias at all four corners. And I have not had any hook problems with the radial slicks as it actually picked up about 1/2 a tenth on the radial slicks. Ron
I drive my car everywhere every day, even when its raining...just came back from work in a downpour with dead e/t streets on the back LOL don't get me wrong, the same type of tire up front and out back definitely handles much better, a radial setup more so....but imo there is nothing difficult in driving a car with skinny radials up front and fat bias plies out back...takes a little bit of finesse and careful driving
|
|
|
Re: Drag Radial or Bias Ply for Heavy 4spd Car?
[Re: mshred]
#1080076
09/23/11 05:50 PM
09/23/11 05:50 PM
|
Joined: Jan 2003
Posts: 27,421
Balt. Md
383man
Too Many Posts
|
Too Many Posts
Joined: Jan 2003
Posts: 27,421
Balt. Md
|
Quote:
Quote:
Quote:
bias ply all the way! Radials are just going to make you chase your tail and are a waste of time on a stick car, my buddy had the problem with his mustang...as far as I know the biggest difference between the hoosiers and M/T's is that the hoosier is softer...I run the M/T's myself, in the 28x12.5 size, and they work awesome..I have about 12psi in them hot when i run, and the wrinkle and bite hard!
Also, in regards to driving with radials on the front and bias plies on the back- I have 165/80R15 skinnies on 4" rims up front with my e/t street's in the back...I drive my car everywhere like this! the two hours of highway to the track, in downpours, etc....you name it i drive it....It's really no big deal, as long as you watch for the tar lines lol...to all the guys I know who say its crazy, I say sack up because you don't know how to drive obviously
good luck
I will say that when I ran the Hoosier bias QTP tires on the back of my 63 and the radial tires up front that it was not to bad on the track but could feel kinda squirley at times on the roads. Myself I got used to it but when my son drove it he really noticed it. Well I decided to try the Hoosier radial slicks and I will say it was like night and day. It handled like a Caddy with the radials out back also. Even at the track it is so much nicer and does not want to wonder at all. As you said yes you can tolerate it but since I drive my 63 alot it's just not worth the hassle when it handles so much better with either radials or bias at all four corners. And I have not had any hook problems with the radial slicks as it actually picked up about 1/2 a tenth on the radial slicks. Ron
I drive my car everywhere every day, even when its raining...just came back from work in a downpour with dead e/t streets on the back LOL don't get me wrong, the same type of tire up front and out back definitely handles much better, a radial setup more so....but imo there is nothing difficult in driving a car with skinny radials up front and fat bias plies out back...takes a little bit of finesse and careful driving
Its funny as you said its no problem for you or me to drive our muscle cars with different type tires from front to rear but I had to laugh when my youngest son who was driving an SRT-4 at the time drove my 63 when it has the QTP's out back. He actually wanted to know what was wrong with my car. Its just all he had ever driven was newer rack and pinion steering cars and I guess it did feel different. Heck any muscle car will handle alot different then any newer cars with rack & pinion steering even with 4 radials on it.  Ron
|
|
|
Re: Drag Radial or Bias Ply for Heavy 4spd Car?
[Re: 383man]
#1080077
09/23/11 11:40 PM
09/23/11 11:40 PM
|
Joined: Jan 2003
Posts: 6,266
Renton Washington
Triple Threat
master
|
master
Joined: Jan 2003
Posts: 6,266
Renton Washington
|
My car with radials on the back and Bias Ply's on the front handled like Poop. Radials on all 4 corners and its piece of cake for anyone to drive, even with a spool out back.
-Dustin
67 Dart, 9 second, 392" G3 Hemi
68 Barracuda 340 F/SA
|
|
|
Re: Drag Radial or Bias Ply for Heavy 4spd Car?
[Re: Triple Threat]
#1080078
09/24/11 12:57 AM
09/24/11 12:57 AM
|
Joined: May 2003
Posts: 2,414
St. Croix, US Virgin Islands
David_in_St_Croi
top fuel
|
top fuel
Joined: May 2003
Posts: 2,414
St. Croix, US Virgin Islands
|
I have to agree with the person recommending the Mcleod Soft-Lock for the best clutch setup on a car that sees both street and strip. Call Tim Haytt (440 254 1311) if/when you decide to go that route. Just remember to drill the adjusting hole in the back of the scattershield. I wouldn't use any other clutch.
I would recommend just going with a straight slick if you are just seeing what times you can get, not worrying about street night rules or such. Generally, they are a little cheaper than DOT tires and realistically you will be using your steel belted radials for everyday driving.
As mentioned, either M/T or hoosier will work. I just installed a set of Hoosier 29x9x15 slicks on our 70 RR, still sorting them. The compound is the D07, which according to their tech was developed specifically for stick cars. I also run tubes. The feedback on the UMTR site is that the Hoosiers like air pressure, I was recommended 16 psi, and a man on the UMTR website with a nice 64 Chevy with a stroked 409 runs 18 psi successfully. The tubes help stiffen the sidewalls, and the higher psi makes the car much less squirrelly. A 9 inch slick will work great with your 10" wheels, you can run higher pressures and still have a flat contact patch. The taller diameter also helps with contact patch. The 29x9-15 on 8" wheels fit fine in the stock wheel wells of a 70 RR with a stock width S60. Not sure of the back space on the rims but it is not much(maybe 3.5"??), the tires could easily go inboard more.
Have fun!!
|
|
|
|
|
I've run both, radials and slicks. Radials don't work real well with a stick car. Like your experience,they would spin at anything above idle rpm. I've gone 1.60 with slicks with my car in street trim other than the slicks, and my car is pretty much as heavy as yours is. As mentioned, Hoosers grab better, but don't last as long as the MT's. Both are good, however, and you can't go wrong with either. 
