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DRR Pro
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Update on the M/T radial front runners. I had to return one of the tires it had a small bulge in the sidewall. The replacement is mounted & on with no issues. Hope to be testing them soon!

2BKING
Relaxing


1980 Camaro
Taking the Best Working Small Tire Shyt Box & making it Greater Than Before!
3100 lbs.
Pump Gas 436
 
Posts: 3576 | Location: NV. | Registered: October 20, 2006Reply With QuoteReport This Post
DRR Pro
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No issues with the radial front runners this past weekend!

2BKING
Relaxing


1980 Camaro
Taking the Best Working Small Tire Shyt Box & making it Greater Than Before!
3100 lbs.
Pump Gas 436
 
Posts: 3576 | Location: NV. | Registered: October 20, 2006Reply With QuoteReport This Post
DRR Pro
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quote:
Originally posted by markemark:
For cars launching wheels up, I think a bias tire would set down from a larger wheelie softer than a radial given the front shocks and other settings used.


While I have the car calmed down for the most part on the big wheel stands. I did run one pass in some decent air at the bracket finals. We had a high/long wheelie the car landed very nice & smooth. IMO, these tires are smoother than the bias ply front runners.

The time slip is what went with the run, just because people like time slips.

2BKING
Relaxing




1980 Camaro
Taking the Best Working Small Tire Shyt Box & making it Greater Than Before!
3100 lbs.
Pump Gas 436
 
Posts: 3576 | Location: NV. | Registered: October 20, 2006Reply With QuoteReport This Post
DRR Pro
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TTT, these tires are still sweet! The wear on them is nonexistent compared to the bias front runners. They have a noticeable smoother/better ride thru out the run.

2BKING Smile

Relaxing


1980 Camaro
Taking the Best Working Small Tire Shyt Box & making it Greater Than Before!
3100 lbs.
Pump Gas 436
 
Posts: 3576 | Location: NV. | Registered: October 20, 2006Reply With QuoteReport This Post
DRR S/Pro
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Now that I have more laps on these MT-3850 ET street front radials I find them to be superior to the lightweight bias I was using prior. The front of my car steers straighter and feels more stable in bumpy shutdowns. Although radial is 5# heavier than same size bias, car runs exact same numbers. I wouldn’t return to bias fronts given the choice.

The availability of these MT radial fronts is surprisingly low and I waited two months to purchase. In less than five days they were again sold out.
 
Posts: 3269 | Location: 53056 | Registered: December 30, 2009Reply With QuoteReport This Post
DRR Pro
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quote:
Originally posted by markemark:
MT-3850


I'll be going to this size when I have to replace mine. If I remember correctly, mine are the 3851s & are 27" dia.

2BKING Smile

Relaxing


1980 Camaro
Taking the Best Working Small Tire Shyt Box & making it Greater Than Before!
3100 lbs.
Pump Gas 436
 
Posts: 3576 | Location: NV. | Registered: October 20, 2006Reply With QuoteReport This Post
DRR S/Pro
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quote:
Originally posted by B KING: I'll be going to this size when I have to replace mine. If I remember correctly, mine are the 3851s & are 27" dia.


fyi, my MT-3850 on a 15 x 4 wheel at 35 psi measured 25.5” tall when not mounted on the car.
 
Posts: 3269 | Location: 53056 | Registered: December 30, 2009Reply With QuoteReport This Post



DRR Trophy
Picture of BTR69
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Have you noticed any difference in reaction times, going from bias to radial? As I recall, in a bias ply, lowering air pressure helps slow down r/t a little. With typical radials being stiffer, I'm also curious, how varying air pressure may affect quickening or slowing down r/t.


William Kilduff
1970 Barracuda
1968 Camaro X2
1968 Caprice
1964 F100
 
Posts: 402 | Location: Wilmington NC | Registered: June 15, 2014Reply With QuoteReport This Post
DRR S/Pro
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quote:
Originally posted by BTR69:
Have you noticed any difference in reaction times, going from bias to radial? As I recall, in a bias ply, lowering air pressure helps slow down r/t a little. With typical radials being stiffer, I'm also curious, how varying air pressure may affect quickening or slowing down r/t.


This MT-3850 radial is 3/4” taller than the previous bias fronts. Using the exact same delay. I set my front tires at 35 psi off the trailer and don’t monitor or change during a day event. Same when I no-box race.
 
Posts: 3269 | Location: 53056 | Registered: December 30, 2009Reply With QuoteReport This Post
DRR Pro
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I've played with the pressure a little, the same follows as the bias but not to the same amount.

2BKING Smile

Relaxing


1980 Camaro
Taking the Best Working Small Tire Shyt Box & making it Greater Than Before!
3100 lbs.
Pump Gas 436
 
Posts: 3576 | Location: NV. | Registered: October 20, 2006Reply With QuoteReport This Post
DRR Trophy
Picture of BTR69
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Thanks. My bias fronts leak down fairly quick in my opinion. 1-2 lbs every few hours, so I keep an eye on them every few passes. Been planning to replace them, just not ready to spend that $$$ yet. Considering going to radial, as long as the weight considerations don't count them out.


William Kilduff
1970 Barracuda
1968 Camaro X2
1968 Caprice
1964 F100
 
Posts: 402 | Location: Wilmington NC | Registered: June 15, 2014Reply With QuoteReport This Post
DRR Sportsman
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Just replaced my front MT bias and wish I had bit the bullet and got the radials. I go thru a set of front tires every season. Approx. 150-200runs. Yes the car has been aligned and I can drive it with one finger going down the track. Does nothing but go straight.

The bias tires just seem to wear out very quick. Car is 3305lbs. 52% up front.

Next time I will be going to the radials and hope for better life.



Configuration: 3350#, 582 C.I.,

60 - 1.24
1/8 - 5.53@ 126MPH
1/4 - 8.73@ 159MPH



3700#+210lb driver, FULL interior, through mufflers, 10.5 tire.
60'-1.333 (IN 4000ft DA! Joisy Math excluded; 1.25sec using JOISY MATH.) Wink
1/4 - 9.60@144MPH

 
Posts: 1663 | Location: St Marys | Registered: January 12, 2004Reply With QuoteReport This Post
DRR S/Pro
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quote:
Just replaced my front MT bias and wish I had bit the bullet and got the radials


The MT-3850 radial front was $185 a pair more than the MT-3001 bias I was running previously and worth the added expense now that I have tried them. As I wrote prior, given the choice I wouldn’t return to bias.
 
Posts: 3269 | Location: 53056 | Registered: December 30, 2009Reply With QuoteReport This Post
DRR Pro
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quote:
Originally posted by ski_dwn_it:
Just replaced my front MT bias and wish I had bit the bullet and got the radials. I go thru a set of front tires every season. Approx. 150-200runs. Yes the car has been aligned and I can drive it with one finger going down the track. Does nothing but go straight.

The bias tires just seem to wear out very quick. Car is 3305lbs. 52% up front.

Next time I will be going to the radials and hope for better life.


It seems like I would get about 2-3 seasons out of the bias front runners with about 100 passes a season. I have about 200 runs on the radials in 2 years & see very little wear on the tire. My car is 3100-3150 lbs. with driver.

2BKING Smile

Relaxing


1980 Camaro
Taking the Best Working Small Tire Shyt Box & making it Greater Than Before!
3100 lbs.
Pump Gas 436
 
Posts: 3576 | Location: NV. | Registered: October 20, 2006Reply With QuoteReport This Post



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