M/T ET Streets vs ET Radial Results
Hello everyone! I have just switched from a 305/35/18 M/T Street radial II to a 26x11.50x17 M/T ET Street.* I have heard the ET Streets are more consistent and will hook better than the radial tires, but how will it affect my ET and mph at the quarter?*From what I have heard the Bias plys tend to eat up some horsepower from there soft sidewalls, but how much mph will it steal from me?*The radials were on heavy stock repro wheels with stock c6 fronts*where the et streets are on a much lighter weld RTS wheels with front skinnies.*Right now I'm trapping 131-132mph n/a do you think I will lose some mph, stay the same, or gain some mph?
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While typically you might lose some MPH going from Radial to Bias - all else staying the same, You will likely pick up a little bit because of the weight you are removing by using the lighter drag pack and skinnies.
The Bias ply tire will reccover quicker from a spin. |
Originally Posted by Capthuff
(Post 1580076791)
While typically you might lose some MPH going from Radial to Bias - all else staying the same, You will likely pick up a little bit because of the weight you are removing by using the lighter drag pack and skinnies.
The Bias ply tire will reccover quicker from a spin. * Does anyone have any real world experience switching from a radial to a bias ply all else being the same including diameter?*How much of a lose in mph did you experience if any? |
usually you can leave harder on Bias plys with less worry they absorb alot of the shock of the launch. they are alot lighter than a radial so you should pick up some et yet lose a little MPH. Good luck:D
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Originally Posted by Dennis50njJR
(Post 1580077737)
they are alot lighter than a radial so you should pick up some et
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Stick cars don't like drag radials too much so your biggest gain in going to the bias ply tires will be due to better traction and thus better 60 foot times. Your MPH will stay about the same.
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If mph stays the same with all else being equal or even loose 1-2 mph it won't be a big deal because the light wheels and skinnies should gain that mph back for me. I just don't want to lose 5+ mph from them. I might go to Atco this Sunday and see how they work out for me.
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maybe i missed the detail, but when i ran the bias-ply rears i hope your running the same for the front, I used to run them with the stock front street radials and on the top end i could feel it wanting to wander around..... SCARY!
So now i'm still running the Hoosier QTPs with front skinnies & its stable & straight down the strip :) |
Originally Posted by Ksths2
(Post 1580082174)
maybe i missed the detail, but when i ran the bias-ply rears i hope your running the same for the front, I used to run them with the stock front street radials and on the top end i could feel it wanting to wander around..... SCARY!
So now i'm still running the Hoosier QTPs with front skinnies & its stable & straight down the strip :) |
Originally Posted by ITS STOCK
(Post 1580080746)
If mph stays the same with all else being equal or even loose 1-2 mph it won't be a big deal
And depending on just how much traction was lost early on in the pass while on a drag radial that wasn't hooking, one can even gain trap speed when going to a bias ply. But overall on late model NA Corvettes, I've seen many experience probably less than a 1mph loss in trap speeds when switching to bias plies from radials. |
Originally Posted by LS1LT1
(Post 1580084302)
I don't think you'll lose even that much. :) When people talk about losing some trap speed when using bias plies over radials it isn't necessarily going to be the same exact amount of loss for every type of car/power combo.
And depending on just how much traction was lost early on in the pass while on a drag radial that wasn't hooking, one can even gain trap speed when going to a bias ply. But overall on late model NA Corvettes, I've seen many experience probably less than a 1mph loss in trap speeds when switching to bias plies from radials. |
Originally Posted by Ksths2
(Post 1580082174)
maybe i missed the detail, but when i ran the bias-ply rears i hope your running the same for the front, I used to run them with the stock front street radials and on the top end i could feel it wanting to wander around..... SCARY!
So now i'm still running the Hoosier QTPs with front skinnies & its stable & straight down the strip :) |
On my 98 Firebird (w/ LS1) I went from 10.90 to 10.66 by going from 29.0x15 Bias Ply Hoosiers to 27.7" Hoosier drag radials. But I also changed out to a bigger air lid so I'm not sure if the drag radial was responsible for all of the gain. But I'm going back to 28.0" bias ply Hoosiers because I did not like the inconsistency. Plus, the shock that it was putting on my car during launches made me cringe. I broke a transmission bellhousing first time out with the radials.
In addition, the Hoosier drag radials did not last very long... |
Originally Posted by htown81vette
(Post 1580092504)
In addition, the Hoosier drag radials did not last very long...
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Originally Posted by LS1LT1
(Post 1580095713)
True. I've seen a set of Hoosier drag radials wear out in only 30-35 passes :eek: though I don't think that's too common. :nonod:
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Originally Posted by htown81vette
(Post 1580096134)
mine didn't even last that long
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Originally Posted by htown81vette
(Post 1580092504)
On my 98 Firebird (w/ LS1) I went from 10.90 to 10.66 by going from 29.0x15 Bias Ply Hoosiers to 27.7" Hoosier drag radials. But I also changed out to a bigger air lid so I'm not sure if the drag radial was responsible for all of the gain. But I'm going back to 28.0" bias ply Hoosiers because I did not like the inconsistency. Plus, the shock that it was putting on my car during launches made me cringe. I broke a transmission bellhousing first time out with the radials.
In addition, the Hoosier drag radials did not last very long... |
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