I've heard that with my power and being an automatic that I would 60ft better and get more MPH out of the MT drag radial over my QTPs. Is this true?

Im sitting at around 420 rwhp running a 3600 stall. I usually 60' low 1.6 with the QTPs

Thanks
Austin

 

QTP bias ply or radial?
Radials usually do better at the same sizing versus a bias-ply tire. Do a search as this has been discussed before.

Derek

 

almost 100% sure they are Bias ply

 

QTP is a Bias Ply.

IF traction was equal (i.e. Same results) the construction of the Drag Radial should make the car faster due to stability on the back half of the track.

So example I see if you cut the same 60 Foot with both tires and you did not bog, the DR should be faster in ET and MPH.

With automatic cars I have been in situations where I was over powering the tire or bogging due to not enough gear or stall no matter what PSI I chose.

As far is ability have better traction I would ALWAYS say the Bias Ply has the advantage on average over a Drag Radial (regardless of brand or compound), due to the ability to absorb the shock. PLUS a Bias Ply can recover far better if you spin. Once you spin a DR on the launch, the run is blown, might as well drive, not race to the finish line and save the wear and tear for another run.

I see nothing in the Mod list that should warrent a Bias ply.

 

So your saying that theres no reason why I shouldnt hook on a drag radial and net gains from it. I do understand what you mean by the run is shot, I ran into that on my 255/60/16 BFG DRS

 

Based on the mods, I do not see anything that should be a situation where you could not hook up. No Crazy stall, no 150 Nitrous shot off the line etc etc.

The M/T ET Street Radial compound is Superior to almost all other DR on the Market, their construction I have noticed allows or more "give" then other tires and I honestly was bogging with my 2800 Stalled 383 LT1 with 3.42 gears.

Had I knew then what I know now I would have gone 4400-5000 stalled, 3.73 or 4.10 and then let it fly.

 

Go with the MTs and don't look back then report to us your findings as I'm sure you will gain mph up top over the bias ply tires. I have gone low 1.5s on my 255 DRs in a heavy car.

 

Well put man.

 

I dont bog now, I actually Spin slightly then hook and book. I think a drag bag will help some of that.

 

I've used both the M/T drag radials and the QTP tires. I like the M/T drag radials a lot better, my car hooked better with them and ran a higher mph. Not to mention if you do any street driving with them the drag radials handle much better. I used bias ply tires for years but now that I've switched to the M/T drag radials I'm not sure I would ever go back, they work great with my combo(high 10 sec, N/A, auto.)

 

How much more mph are we talking about?

 

IDK but I gained 2 mph and .1 got from a slick to a radial. These were at two different times, two different tracks, two different time of the day and I had more weight.

The slicks were Hoosier stick sidewall 28x10.5x15 vs. M/T et streets 28x11.5x16.

Hope this helps

 

If you spin at all now you won't want a radial. If you spin on a radial it won't recover. Your bias tires are best already.

 

Radials will usually give around .5-1 mph more than a bias ply of the same size, mostly due to rolling resistance and the fact they don't grow as speed builds like a bias ply does (killing a little gear ratio).
Is the spinning suspension, track prep, etc? As mentioned, a bias ply will absorb more of the "hit" versus a radial.

Derek

 

I run the 335/35/17 QTP drag radials not a bisply, and they hook very well, even off the line with a 250 shot, I was cutting 1.37 60fts .The 60ft in my sig was bad, because of track conditions. It did spin a little, but did recover.

 

The spinning is more suspension. Im on 100% stock susupension except for a adj panhard bar and no front swaybar.

I have an aftermarket torque arm to still put on, and Im going to put a drag bag in the right spring as soon as I find a used one. Getting the car to launch straigh should yeild some gain.