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more rolling resistence? 325 radial vs. 10.5 slick?

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Old 08-31-2006, 06:54 PM
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Default more rolling resistence? 325 radial vs. 10.5 slick?

just wondering on what your opinions are. madman got any? any of the other hardcore guys?

i know radials overall have less resistence but when the radial is 13" wide, it might change the story.

talking 325/50/15 m/t radial and 28x10.5 et drag

how about stiff sidewall slicks?
Old 09-01-2006, 06:02 AM
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ANy radial tire will have less rolling resistance than a bias ply. This is one of the reasons the radial slick is becoming so popular.
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Old 09-01-2006, 09:23 AM
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John,

My 275/60/15 ET Street Radials have less rolling resistance than my 28 x 10 x 15 ET Drags. Granted there's a little less contact patch between the 2, but mph is about 1 higher with the radials, and they 60 foot better too

Derek

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Old 09-01-2006, 10:35 AM
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Originally Posted by MADMAN
ANy radial tire will have less rolling resistance than a bias ply. This is one of the reasons the radial slick is becoming so popular.
Does that rolling resistance difference counter the weight difference between bias tires and steel belted radials?

Those things are HEAVY!

So if you can hook you will go faster on a drag radial?
Old 09-01-2006, 12:16 PM
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Its awsome to me that guys are going 200mph in the 1/4 on the radials.
Old 09-01-2006, 01:27 PM
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i believe that if you can hook the same on the radials you WILL go faster and quicker on the radials.

i was just wondering b/c the 325 radials are hooking SO well for most guys. the weight is a negative BUT in the end all i care about is the ET and MPH. they might be heavier but they work better (if you are hooking the same).

interesting.
Old 09-02-2006, 11:21 AM
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TTT for Madman's response.
Old 09-02-2006, 11:39 AM
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The radial tire will be faster even though its heavier. I have seen some unbelievable 60 ft times with the drag radials so they will hokk up.
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Old 09-13-2006, 12:09 AM
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I'm starting to wish I'd got the radials instead of the ET drags. The drags look like they will have a lot of resistance. But I did get the stiff side walls.

Will the radial not swell up as big as the drag tire?
Old 09-13-2006, 07:15 AM
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Track prep plays a huge role here. That will determine which hooks the best. No doubt if you can hook the same on the radials you will pick up on the other end.
Old 09-13-2006, 07:30 AM
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The radial tire doesnt grow.
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Old 09-13-2006, 07:34 AM
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Originally Posted by MADMAN
The radial tire will be faster even though its heavier. I have seen some unbelievable 60 ft times with the drag radials so they will hokk up.
Ran two 1.30 60's this weekend on my 3-year old BFG 325 DR's blipping it in the air to keep the front end from coming up too high. This was leaving off idle at 1200 rpm on the footbrake. Needless to say, they hook just fine and I mph better with them. Take care.
Old 09-13-2006, 07:45 AM
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Ive alway heard if you can hook with a radial you will always et and mph faster .
Old 09-13-2006, 08:35 AM
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Originally Posted by MADMAN
The radial tire doesnt grow.
How much would you say the ET drag will grow at around 130MPH. Or doing a burn out.
Old 09-13-2006, 09:07 AM
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Originally Posted by DSG
Its awsome to me that guys are going 200mph in the 1/4 on the radials.
Who is doing that? I thought Wolfe was the fastest on radials, and he's been 194 and change...
Old 09-13-2006, 10:32 AM
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Another question. If you run a 26 10 15 et drag on a 10" wheel (which is what I run) can you put a 275/50/15 MT drag radial on a 10" wheel. I do know from reading that they say a 9" wheel is the biggest diameter wheel you can go with I believe. I am asking this because If i went to a 325/50/15 in a drag wouldnt that slow my car down? The car is na only with no power adders.
Old 09-13-2006, 11:19 AM
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Radials don't grow and will always run a better # due to rolling resistance than a same size slick.

Wolfe has been 197 mph I believe in actual competition.

You can run a 275/50/15 on a 10" rim. It's a wider tire than the 275/60/15 and plenty of people run those on a 10" rim, help spread the footprint a little more.

Derek
Old 09-16-2006, 12:22 PM
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Originally Posted by 35thZ28man
Another question. If you run a 26 10 15 et drag on a 10" wheel (which is what I run) can you put a 275/50/15 MT drag radial on a 10" wheel. I do know from reading that they say a 9" wheel is the biggest diameter wheel you can go with I believe. I am asking this because If i went to a 325/50/15 in a drag wouldnt that slow my car down? The car is na only with no power adders.
I run the 275's on 10" on mine. Works great. Like Villain said spreads it out a little. Same concept of some of the TTT5 guys running a 12" wheel in a 10" E/T drag.




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