Struggle with tire spin - Dodge Challenger Forum: Challenger & SRT8 Forums
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post #1 of 21 (permalink) Old 05-18-2019, 10:40 PM Thread Starter
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Struggle with tire spin

I take my R/T to the track as much as I can. I'm still running 245/45/20s on the factory classic wheels. I spin terrible off the line and don't know what to change 1st. I have to stay budget minded and I'm torn.

Would I be better off upgrading the rear end because it's an open diff or throwing 17's with DR's on the back? I've run a best of 13.55 @ 105mph with the car. I feel like I'm killing my 60' spinning the way I am.
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post #2 of 21 (permalink) Old 05-19-2019, 01:05 AM
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I would go with drag radials. Are you an automatic? What are your 60ft times?

2012 SRT automatic, PB 12.0490 with DR, then 11.56 with 5.5psi magnuson Sold
2017 hellcat A8 stock, 10.86 with DR's
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post #3 of 21 (permalink) Old 05-19-2019, 06:30 AM
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+2 on drag radials. Do some dry hops after your burnout at the track also. Being you have an open rear 1 tire could be spinning while you are doing a burnout and the other may still have water on it. Makes no sense to put an open rear in a R/T.

With only M/T drag radials I went 12.91 with our '18 Challenger R/T last fall

"Without DATA, you're just another person with an OPINION"

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post #4 of 21 (permalink) Old 05-19-2019, 08:52 AM
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It also helps to drive around the burn out box and back into it.
I have driven thru it and my front tires drug so much water onto the track that my 0-60 was 2.6.
could not hook.
But backing in to the box I was 1.7.

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post #5 of 21 (permalink) Old 05-19-2019, 10:16 AM
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If your on a budge, which most of us are just put 20inch drag radials on it. If its your daily I would go with spare set of 17s. I had 20in drag radials hold the track until I started changing gears and stall speeds. Like Vorteced mentioned, give it a few hops after the burn out is complete.

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post #6 of 21 (permalink) Old 05-19-2019, 10:28 AM
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Actually I think he should avoid the burnout box altogether (if possible) if on street tires.
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post #7 of 21 (permalink) Old 05-19-2019, 01:48 PM
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I wouldn't even go with street tires but that's me. I did it when I brought the car home just to get a baseline and that was it drag radials were on order.
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post #8 of 21 (permalink) Old 05-19-2019, 05:08 PM Thread Starter
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60' is in the 2.6's. I've looked at DR's for the factory wheels but they seem to all be too wide. Is there a size that fits without bulging to far over the wheel lip?

I'll need to take a Friday off to go to test n tune. To try the suggestion made for burnouts and no burnout.

I do not daily drive my car. I take it out of the garage a few times a month on my days off. Running drag radials would be fine to run all the time.
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post #9 of 21 (permalink) Old 05-19-2019, 06:18 PM
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I ran Nitto 555r when I was on 20s. Then Nitto 05r on 18s. Mickey Thompsons on 18s. And running M&H on 17s now. Next time you go out on the street tires, Take them down to around 20 psi, don't get to smokey because the street tire will actually get greasy like the more smoke you get off them. Tilt the mirror down, soon as you see some smoke start your way out of the box.
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post #10 of 21 (permalink) Old 05-19-2019, 09:14 PM Thread Starter
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I'll take another look at the Nitto 555R for 20's
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