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Tire Sizes Question

11.5 a no lift shift?

gasp. When i was rodding in the 70s a 12 was god and that took strategic science and, genius. That was the 1/4 and some twisted axles.

Do these things leap frog? OEM stock?
 
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Updating this again...
I bought a pair of the Aturro drag radials in the factory oem size of 305/30r19.
I had them mounted on a pair of apex 19x11 wheels, flow formed EC-7s I believe.
Drag radials setup weighed .8 lbs per wheel less than the oem wheels/tires.
I broke in the drag radials as per manufacturers instructions prior to going to the track.
Just went to a track rental last friday.
Tires performed pretty well and hooked nicely on a prepped track. The last 2 track rentals I went to, I was spinning a lot. This time it dead hooked a few times and bogged some others. At least now i can get more power to the ground.
Also gave up on launch control, lol. More consistent and better ETs doing it the old fashioned way.
Even though I could hook better, sixty foot times werent ideal. Best was like a 1.93.
IIRC, my best ET was 11.506 @ 128.67.
Car is still completely stock just with the drag radials.
Next track time I get, I may try the no lift shift and see if i can gain another tenth or so.
Yea, that trap speed is good for high 10's if all things are ideal. You just need to get those 60 ft's down. 1.6 to 1.7 should be doable. Manual trans is going to be a little tougher to launch though.
 
Heres my 3 best timeslips.
I looked through all my slips and my best 60' was 1.913. That was on a 12.0 run where I think I hit the rev limiter and let off/didn't shift. My 330' there was 5.030 compared to 5.061 on my 11.506 run. So the car definitely has an 11.4xx in it even with a 60' in the 1.9s.
These Atturo tires arent bad for the price and being in the oem size and actually oem dimensions.
 

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I'm also going to try to data log with hptuners the next time at the track. I dont have PDR in my car so at least with the log, I can see if I was at full throttle the whole track. The class at Spring Mountain showed me that I wasnt applying full throttle when I assumed I was or should have been, so perhaps I'm doing that here too.
 

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