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Drag Radial or Bias Ply for Heavy 4spd Car? #1080049
09/21/11 09:34 PM
09/21/11 09:34 PM
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San Francisco Ca
SCATPK Offline OP
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Just wondering what the concensus is on what works best with a heavy car and a 4spd at the track? My gtx is 3925lbs without my butt in the seat and have ran my best 60ft times with a bias ply tire m/t et streets. I have run e/t radials the last couple of times to the track and having a hard time getting a good 60ft without spinning the tires. I am far from an expert at the track and just like to play but would like to get the best possible traction when I do go out. Best 60 with the bias plys is 1.760 and 2.001 with the radials. Any tips on what would work best with my setup?

Re: Drag Radial or Bias Ply for Heavy 4spd Car? [Re: SCATPK] #1080050
09/21/11 09:57 PM
09/21/11 09:57 PM
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N.E. Ohio
6bblFLASH Offline
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I have`nt tried yet,but the guys over on the U.M.T.R. web have said over and over drag radials don`t work well on stick cars unless you have a really soft clutch.
They are good tires but the sidewall is`nt "giving" enough for the shock of a clutch application.

P.S. You have TOO much POWER


70` Cuda`,440 6BBL Jerico,Dana 4.56 Still on 93 Pump Gas
9.87 @ 136/1.31-60ft.`09 Mopar Nationals PASSON PERFORMANCE "Stick-Shift" Champ!
2013 StickShift Challenge Winner@ Mopar Nationals!
Re: Drag Radial or Bias Ply for Heavy 4spd Car? [Re: 6bblFLASH] #1080051
09/21/11 10:15 PM
09/21/11 10:15 PM
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Columbus, OH
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Bias for sure

Re: Drag Radial or Bias Ply for Heavy 4spd Car? [Re: redruM] #1080052
09/21/11 10:32 PM
09/21/11 10:32 PM
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South San Francisco, Ca
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MT ET Radials are good for the street but not the track. They don't grip. Get your self some MT ET Streets.


[img]http://www.imgur.com/hxlGUJt.gif[/img]
4-speed
3:54 Dana
13.01 @107.93 with street tires (not hooking up)
Re: Drag Radial or Bias Ply for Heavy 4spd Car? [Re: 70sixpkrt] #1080053
09/21/11 10:45 PM
09/21/11 10:45 PM
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San Francisco Ca
SCATPK Offline OP
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What would be a good size bias ply that is equal in size to a 325-50-15? Would buying a set of slicks be best for having a bit of fun at the track once in a while? I have been told by some guys for maximum traction just buy some slicks and call it good. I do have good strong parts so unless I do something really stupid should not break anything. Just want the best bang for the buck when I make the trip and take the time off to go and play and see how fast I can go. My best time has been 11.81 @ 119.426mph and would like to see an 11.50 timeslip. Again I am not a racer and the car is my street driver just want to do the best I can when at the track with my limited experiance. I know a lot of my issues has to do with me shifting it hard down the track but again I drive it up and like to be able to drive it home without the assistance of a tow truck! Though I realize anything can happen and the second to last time out broke an axle in my orginal dana rearend. I now have new axles thanks to Doctor Diff so I should be good there.

Re: Drag Radial or Bias Ply for Heavy 4spd Car? [Re: SCATPK] #1080054
09/21/11 10:52 PM
09/21/11 10:52 PM
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N.E. Ohio
6bblFLASH Offline
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Well if its in your budget,yes I would get some small slicks for track days
But I completely understand wanting to do it in street trim as well. I`m trying to pull that one off too


70` Cuda`,440 6BBL Jerico,Dana 4.56 Still on 93 Pump Gas
9.87 @ 136/1.31-60ft.`09 Mopar Nationals PASSON PERFORMANCE "Stick-Shift" Champ!
2013 StickShift Challenge Winner@ Mopar Nationals!
Re: Drag Radial or Bias Ply for Heavy 4spd Car? [Re: SCATPK] #1080055
09/21/11 11:11 PM
09/21/11 11:11 PM
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Renton Washington
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Triple Threat Offline
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Quote:

What would be a good size bias ply that is equal in size to a 325-50-15?




28x13.5x15 is the comparable bias ply.


-Dustin
67 Dart, 9 second, 392" G3 Hemi
68 Barracuda 340 F/SA
Re: Drag Radial or Bias Ply for Heavy 4spd Car? [Re: 6bblFLASH] #1080056
09/21/11 11:16 PM
09/21/11 11:16 PM
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San Francisco Ca
SCATPK Offline OP
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Any recommendation on size of slicks that will work on a 10" wheel and clear the wheelwells of a 68 b-body? And what do you guys think of slicks vs a dot bias ply for someone like myself? Help a mopar brother out so I do not embarass myself.

Re: Drag Radial or Bias Ply for Heavy 4spd Car? [Re: Triple Threat] #1080057
09/21/11 11:17 PM
09/21/11 11:17 PM
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Quote:

Quote:

What would be a good size bias ply that is equal in size to a 325-50-15?




28x13.5x15 is the comparable bias ply.




Thanks!

Re: Drag Radial or Bias Ply for Heavy 4spd Car? [Re: SCATPK] #1080058
09/21/11 11:50 PM
09/21/11 11:50 PM
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Renton Washington
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Triple Threat Offline
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Quote:

Quote:

Quote:

What would be a good size bias ply that is equal in size to a 325-50-15?




28x13.5x15 is the comparable bias ply.




Thanks!




That is if you stick with the DOT version, either the M/T ET streets or a Hoosier Quick Time PRO.

Stick with a street legal tire, that way you can run on street nights if your track has them. There is little to nothing to be gained by going with a real slick compared to the DOT legal version that has a couple small lines in it.

This tire will mount great on a 10" wheel. I dunno if it will fit a B body as I don't have one, but if the 325/50 clears, this should as well.


-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] #1080059
09/21/11 11:59 PM
09/21/11 11:59 PM
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San Francisco Ca
SCATPK Offline OP
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So it sounds like the dot bias ply tire is the way to go! Anyone know if a 28x13.5x15 is a bit smaller or larger than the 325-50-15 as the 325 just clears my rolled body lip with no rubbing. So if it is larger at all I will have an issue. Anyone have any favorite bias ply tires? I used to run a m&h dot tire on my 70 dart and it worked very well. So before I spend some money let me know what you are running and how it works. Again any input is appreciated!

Re: Drag Radial or Bias Ply for Heavy 4spd Car? [Re: SCATPK] #1080060
09/22/11 12:06 AM
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Triple Threat Offline
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Section width on the M/T 325/50 is 13.1"
Section width on the M/T 28x13.5 is 13.2"
Section width on the M/T 28x12.5 is 12.6"
Section width on the Hoosier QTP 28x13.5 is 12.9"

Bias ply is going to flex more since the side wall is softer, so any of the 13.5's may rub. Sounds like you should go with the 12.5" tire to gain a little clearance. How much room do you have to the front of the wheel well? Bias ply will grow in height as well at speed. If you have 1/2 inch or more I wouldn't worry one bit.

Last edited by Triple Threat; 09/22/11 12:25 AM.

-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] #1080061
09/22/11 12:20 AM
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SCATPK Offline OP
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I have at least a 1/2 inch of room so should be good. How are the hoosiers in comparison to the m/t`s?

Re: Drag Radial or Bias Ply for Heavy 4spd Car? [Re: SCATPK] #1080062
09/22/11 12:24 AM
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6 of one, half dozen of the other. People are brand loyal to tires like they are to car manufacturers. Personally I don't think it matters, there isn't a big difference. Pick the tire that fits the best size wise. That's my opinion anyways.

Re: Drag Radial or Bias Ply for Heavy 4spd Car? [Re: SCATPK] #1080063
09/22/11 12:28 AM
09/22/11 12:28 AM
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I bet your car would like the Hoosier QTP tires. They are bias and I used to run them on my 63 and my son runs them on his Dart. They have 2 treads like a cheater slick but they hooked real good for me. Now I use radial slicks as I wanted radial tires in the back since I have them up front. Ron

Re: Drag Radial or Bias Ply for Heavy 4spd Car? [Re: SCATPK] #1080064
09/22/11 12:34 AM
09/22/11 12:34 AM
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Quote:

I have at least a 1/2 inch of room so should be good. How are the hoosiers in comparison to the m/t`s?




The QTP bits better than the M/T but it also have a
shorter life span... ran them both at drag week in
the past

Re: Drag Radial or Bias Ply for Heavy 4spd Car? [Re: 383man] #1080065
09/22/11 12:36 AM
09/22/11 12:36 AM
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SCATPK Offline OP
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So it seems that a bias ply is the way to go and just pick one that fits best for my application. I am going to compare the various tires sizes and pick one that will fit the best. Again I appreciate the feedback guys!

Re: Drag Radial or Bias Ply for Heavy 4spd Car? [Re: SCATPK] #1080066
09/22/11 12:39 AM
09/22/11 12:39 AM
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Romeo MI
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Quote:

So it seems that a bias ply is the way to go and just pick one that fits best for my application. I am going to compare the various tires sizes and pick one that will fit the best. Again I appreciate the feedback guys!




the side wall on the bias tire can take shock better
(not as stiff)

Re: Drag Radial or Bias Ply for Heavy 4spd Car? [Re: MR_P_BODY] #1080067
09/22/11 12:55 AM
09/22/11 12:55 AM
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SCATPK Offline OP
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Mr P, that seems to be the story when running a 4spd. With the et radials anything above 2800 rpm just spins the tires no matter how little pressure I try. Again I am not in the same league as most of you and just want something that will be a little forgiving with my inexperiance at the track. That is what is so great about this site all of the guys helping everyone out even when they ask dumb questions that have been asked many times in the past.

Re: Drag Radial or Bias Ply for Heavy 4spd Car? [Re: SCATPK] #1080068
09/22/11 08:25 AM
09/22/11 08:25 AM
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Shelby mi.
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JAKE68 Offline
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Radials not recomended for stick car.


JAKES AUTOMOTIVE
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