Re: reg slicks to drag radial lower et
[Re: dOoC]
#845366
11/03/10 11:31 PM
11/03/10 11:31 PM
|
Joined: Jan 2003
Posts: 6,266 Renton Washington
Triple Threat
master
|
master
Joined: Jan 2003
Posts: 6,266
Renton Washington
|
Every car is different, But bottom line is a radial will be faster, but can be more tempermental when it comes to track prep. If it hooks, it will run hard. Every stock / super stock racer in the country knows this.
-Dustin 67 Dart, 9 second, 392" G3 Hemi 68 Barracuda 340 F/SA
|
|
|
Re: reg slicks to drag radial lower et
[Re: Triple Threat]
#845367
11/04/10 12:53 AM
11/04/10 12:53 AM
|
Joined: Oct 2003
Posts: 2,537 PORT ALBERNI , BC., CANADA
superwrench
master
|
master
Joined: Oct 2003
Posts: 2,537
PORT ALBERNI , BC., CANADA
|
Dustin's got that right.......I run MT ET Street radials and Hoosier bias slicks. My faster times have been on the Radial tires. BUT......poor track = poor launch (spin) but if they hook it'll be a hard run. The slicks are more forgiving with track conditions.....poor track means slower times but usually CONSISTANT slower times. With a good track.....still won't beat the radial. The whole thing I've found with the radials is that if they spin you'll be back peddling to tame it down because they'll keep spinning. So I guess what I'm saying is that if you have a superbly prepped track that you always run on, stay with a radial. If not...I'd personally run the bias slick for consistancy over best ET. I just bought some new Hoosier bias slicks......first shot in the new season will be on them. Hope I don't surprise myself.
|
|
|
Re: reg slicks to drag radial lower et
[Re: 9 Sec Phill]
#845372
11/04/10 01:40 AM
11/04/10 01:40 AM
|
Joined: Apr 2010
Posts: 1,049 ohio
all spooled up
OP
super stock
|
OP
super stock
Joined: Apr 2010
Posts: 1,049
ohio
|
phill is that on moter or nos
Last edited by hookd; 11/04/10 01:41 AM.
|
|
|
Re: reg slicks to drag radial lower et
[Re: all spooled up]
#845373
11/04/10 08:18 AM
11/04/10 08:18 AM
|
Joined: Jan 2003
Posts: 13,375 Marion, South Carolina [><]
an8sec70cuda
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 13,375
Marion, South Carolina [><]
|
After trying unsuccessfully to get my car to work on slicks, I put on a pair of 295-65 drag radials after one of the tech guys at M/T recommended them to me. Runs much better on the radials.
I've been a best of 1.32 sixty foot and 9.54 at 140+ mph on the radials, footbraking and naturally aspirated.
The best I've gotten from it on bias ply tires is a 1.43 sixty foot and a 9.94 at 138+ MPH. Given the conditions I ran that in, the bias plies will MPH slightly better b/c they grow. Radials don't grow much, if at all.
In the bias ply tire's defense, I only have 8.5" wide rims and was running a 29.5x10.5 stiff sidewall M/T slick with tubes. I had to run 18 psi in them to keep from folding the tire up. With a wider rim I think it'd do a lot better.
The radials are faster when the track will hold them.
I recently ran into some major traction issues, but learned a valuable lesson about how important the front suspension is to making a small tire car work. It's all fixed now and runs like it has for the last 4 years.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
|
|
|
Re: reg slicks to drag radial lower et
[Re: preddy]
#845375
11/04/10 08:53 AM
11/04/10 08:53 AM
|
Joined: Jan 2003
Posts: 13,375 Marion, South Carolina [><]
an8sec70cuda
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 13,375
Marion, South Carolina [><]
|
Quote:
I was just talking about this very topic with some friends Saturday. It got me thinking.... My 10.5 slicks are screwed to the rim and I run inner tubes. What do you do with drag radials? Do you screw them to the rim too or is that not needed?
Mine are screwed to the rim. They will move like a slick.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
|
|
|
Re: reg slicks to drag radial lower et
[Re: an8sec70cuda]
#845376
11/04/10 09:38 AM
11/04/10 09:38 AM
|
Joined: Jul 2010
Posts: 1,491 Oologah, Oklahoma
Big Squeeze
pro stock
|
pro stock
Joined: Jul 2010
Posts: 1,491
Oologah, Oklahoma
|
Like Chip mentioned, I bet the guys that go faster with radials either have a rim that's too narrow or the sidewalls are dead...... Think about it........If neither tires spins, why would one be quicker than the other? It's, obviously, the sidewall........If radials were so great, you'd see them in Stock Elimantor (yes, I know a lot of them run a radial slick)........ So, to have the same ET with slicks (which is typcially more desired because it is the more forgiving tire), the sidewalls need to be stiff, which means 2" wider rim than tread width along with the correct, higher, air pressure.........and tubes help stiffen the sidewall too.........and you're not going to be able to run slicks to the cords like so many people do......... We'd actually change the tire pressure in 1/4-1/2LB increments on Top Fuel cars to control how fast the car gets up on the tire and to control tire shake........If the track is really good, we'd lower the tire pressue 1/4-1/2LB so the sidewall wasn't as stiff so it would sling out and get up on the tire quicker to keep it from shaking.......If the track was bad, we'd raise it 1/4-1/2LB to stiffen the sidewall to prevent shake because we couldn't hit it as hard with clutch because it could blow the tires off....... 1/4-1/2LB doesn't sound like much, but with a tire that big, that's quite a bit of air....... Even weather effected how much tire pressure we ran.......Bad air meant lower pressure because power was down, so it would get up on the tire easier/quicker........
If you can't handle the truth, you're living a lie.......
|
|
|
|
|