30 x 9 slick
#1339255
11/21/12 11:57 PM
11/21/12 11:57 PM
|
Joined: Jan 2003
Posts: 6,145
Melbourne , Australia
LA360
OP
master
|
OP
master
Joined: Jan 2003
Posts: 6,145
Melbourne , Australia
|
Who's are you using? I was looking at a Hoosier bias ply
A body around 3000lbs with around 450 hp and similar ft/lbs. Ladder bar suspension
Alan Jones
|
|
|
Re: 30 x 9 slick
[Re: LA360]
#1339256
11/22/12 12:05 AM
11/22/12 12:05 AM
|
Joined: Nov 2003
Posts: 3,060
Western New York
sixpackbee
master
|
master
Joined: Nov 2003
Posts: 3,060
Western New York
|
If an automatic use the Hoosier radial. It is worth around a tenth over bias ply.
Last edited by sixpackbee; 11/22/12 12:06 AM.
1959 Bugeye Sprite
1967 Charger Black L code
1967 Coronet R/T Convert Green 440 auto bought from original owner
1968 Charger R/T Bronze 440 4 spd console AM/FM
1969 Super Bee WM21H B5 A40 D21 N96
1969 Barracuda Formula S 340 Convert pilot car
1969 Hemi Road Runner RM23J D32 Omaha orange 4.10 Dana N96 N85
1970 Super Bee WM23N FE5 V1X 3.91 axle package, N96
1970 Road Runner RM21N B3 V1X D13
1971 MG Midget
1971 Road Runner RM23H GW3, A57
1972 Road Runner RM23P FY1, D21
|
|
|
Re: 30 x 9 slick
[Re: 383man]
#1339258
11/22/12 01:30 AM
11/22/12 01:30 AM
|
Joined: Jan 2003
Posts: 6,145
Melbourne , Australia
LA360
OP
master
|
OP
master
Joined: Jan 2003
Posts: 6,145
Melbourne , Australia
|
I thought about running the radial slick, but the track I would be racing on can be a little marginal as far as preparation.
Alan Jones
|
|
|
Re: 30 x 9 slick
[Re: 383man]
#1339261
11/22/12 04:49 AM
11/22/12 04:49 AM
|
Joined: Jan 2003
Posts: 6,145
Melbourne , Australia
LA360
OP
master
|
OP
master
Joined: Jan 2003
Posts: 6,145
Melbourne , Australia
|
My rear wheel arch opennings are modified to accept the taller tire.
My current gear ratio is 5.37:1 which is probably a little high for what I am going to be doing. The next engine to go in will be a high RPM engine, which is what the gears were originally bought for. This engine was a fill in/back up engine, we had our first child and I wasn't sure when I would get to finishing the R5 engine off.
Alan Jones
|
|
|
Re: 30 x 9 slick
[Re: LA360]
#1339263
11/22/12 03:10 PM
11/22/12 03:10 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:
My rear wheel arch opennings are modified to accept the taller tire.
My current gear ratio is 5.37:1 which is probably a little high for what I am going to be doing. The next engine to go in will be a high RPM engine, which is what the gears were originally bought for. This engine was a fill in/back up engine, we had our first child and I wasn't sure when I would get to finishing the R5 engine off.
Wow thats alot of gear. I dont blame you for wanting at least a 30" tall tire with that gear. I do like the way mine hook and handle and I even drive on the street with them. Good luck , Ron
|
|
|
Re: 30 x 9 slick
[Re: 383man]
#1339264
11/22/12 07:36 PM
11/22/12 07:36 PM
|
Joined: Apr 2008
Posts: 48
PA
Belvedere500ci
member
|
member
Joined: Apr 2008
Posts: 48
PA
|
30x9 hoosier radial! They hook to the cords. People were telling me how great they were so I took the plunge and bought a set. I ll never go back to bias again! I'd take off any 10.5 11w, 12 and run the 30x9s. They also have 30x10.5 radial but from what I hear they work on some cars and not on others.
1967 Plymouth Belvedere II 383
1968 Plymouth Barracuda 383
2005 Ram 3500 5.9Diesel
1979 Dodge Power Wagon 360
|
|
|
Re: 30 x 9 slick
[Re: LA360]
#1339265
11/22/12 08:29 PM
11/22/12 08:29 PM
|
Joined: Jan 2003
Posts: 5,894
Florida
Locomotion
master
|
master
Joined: Jan 2003
Posts: 5,894
Florida
|
Quote:
I thought about running the radial slick, but the track I would be racing on can be a little marginal as far as preparation.
That's what I always point out when the subject of radials comes up. I can't recall the last time I had a problem at an IHRA divisional/national event. I love my Hoosier lightweight radials also! 
Earlier this year, as in years past, I was VERY inconsistent at Orlando Speed World (Florida) and rarely went. In the last 6 weeks I attended 2 Stock/Super Stock combo events put on by our regional association at Orlando. I was leading the points and wanted to insure I stayed there despite my traction concerns. They had gotten a new track prep crew since the last race I attended and I was happily surprised to see traction as good as it's ever been there or anywhere else! The last race, with great air, resulted in the best ET's and 60' times ever with my usual "tune". All 60's were witin .01. It just depends on how much time, effort and material the track wants to put into it and if they know what they are doing.
Whatever 9" you go with, get as close to a 10" rim as you can. If you don't want to cut-up/mini-tub the car, you should be able to go with a wider tire and rim if you get a 3/4" offset kit for the leaf springs. Nevermind, I see you have lader bars! 
Traction may still be a concern when you go to the stronger engine. Michael Beard tried running his Volare with a Stocker-type Cal-Trac suspension when he put a mild, SS-legal Drag Pack FI 360 engine in for SS/GT. He was running mid-high 10's, but the motor made too much power to hook as consistently as was necessary. So he back-halved the car.
Last edited by Locomotion; 11/22/12 08:38 PM.
|
|
|
|
|
