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R-Compound tires grip significantly better for straight line acclerating taction?
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| 11-25-2011, 09:15 PM | #1 |
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Second Lieutenant
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R-Compound tires grip significantly better for straight line acclerating taction?
Sorry about my horrible title grammar. Do R-Compound tires hold straight line accelerating traction significantly better than a high performance summer tire of the same size? I ask this because I am beginning to experience the effects of too much power on straightline acceleration in 2-3 and 3-4 gear with the new vishnu aggressive maps. I currently run Falken FK-452's that are at the wear indicators and want to know if its beneficial to step up to Falken's RT-615K or if I'm wasting money and sacrificing durability. Also if you have any other model tires for increased straight line grip.
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Last edited by UltimateLurker; 11-25-2011 at 09:25 PM. |
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| 11-25-2011, 09:51 PM | #2 | |
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Colonel
![]() Drives: 2013 e92 M3 Join Date: Dec 2006
Location: Kailua/Monarch Beach
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Track/Airstrip: 2013 e92 M3 MW FR DCT ZCP / ESS VT2 S/C, MRF mid/Akra slip, StopTech BBK (583 RWHP STD @ 8,600 RPM)
Beater: 2013 STi Sedan / Cobb Stg 2 / WRX wing lol |
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| 11-25-2011, 10:26 PM | #3 | |||
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Noob
Drives: 2006 MZ4C, 2013 Veloster Turbo Join Date: Oct 2007
Location: Jerry Brown's little tree-huggin' state
Posts: 2,821
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If you're more concerned with straight line speed, you need to step ALL THE WAY up to drag radials rather than tinker with R-Comps. Yes R-Comps are stickier than their street tire counterparts, but for straight line performance drag radials are far more effective than R-Comps because R-Comps tend to have much stiffer sidewall, which reduces the deformation of the tire upon compression, which reduces grip (compared to drag radials) in a straight line. The stiffer sidewall helps cornering by keeping the contact patch in shape, but in a straight line you want the sidewalls to deflect and deform as you accelerate on the drive wheel.
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| 11-26-2011, 04:12 PM | #4 |
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Second Lieutenant
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I would like to retain good handling characteristics, so I'm not interested in venturing into drag radial tires for this daily driver. I figured that R-Compound street tires would be a good median between summer and drag radials. So consensus says that R-Compound won't make a signficant difference in straight line traction without being heat up first? Just to clarify, I don't need launching traction, just traction at speed.
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| 11-26-2011, 04:19 PM | #5 | |
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2006 330i, TSM, Black, manual, sport
Drives: E90 330i, E86 Z4 3.0si Join Date: Nov 2005
Location: Chester Springs, PA
Posts: 2,656
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Limited slip diff will help the most though.
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2006 330i, TSM, Black, Sport, JIC Cross Coil-Overs, UUC Sways, 18" Advan RS, Mich PSS 255/265, Custom Alcantara M-tech steering wheel, VAC pedals, Rogue shifter, M-Tech front, CF emblems, Dinan TB, Intake, exhaust, strut bar, Stoptech BBK, LSD, M3 susp., LUX 5, CF Hood and CSL, Sparco Seats, AA tune, CF Roof
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| 11-26-2011, 05:49 PM | #6 |
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Colonel
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Even the most street friendly r-comps will wear out very fast, and they'll hydroplane on wet roads, and they'll make so much noise, you'll think something's wrong with your car.
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| 11-26-2011, 06:02 PM | #7 |
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Colonel
![]() Drives: 2013 e92 M3 Join Date: Dec 2006
Location: Kailua/Monarch Beach
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If you can find them, the best bet is Goodyear Eagle F1 GSD3's. They were unfortunately discontinued for the Asymetrico. The GSD3's were phenominal in both wet and dry traction conditions. I had them on a few cars including M's. The best way I can describe is this: has some on a KO4 turbo'd 1.8T front wheel drive (over 300 lb ft of torque). I could rev to redline, drop the clutch and get little to no wheelspin and just take off. None of the tires I've had since then can compare.
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Track/Airstrip: 2013 e92 M3 MW FR DCT ZCP / ESS VT2 S/C, MRF mid/Akra slip, StopTech BBK (583 RWHP STD @ 8,600 RPM)
Beater: 2013 STi Sedan / Cobb Stg 2 / WRX wing lol |
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| 11-27-2011, 11:10 PM | #8 | |
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Major
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Hit puddles going 85 and they chewed right thru. Every time I go to buy new tires I just want those back. |
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| 11-28-2011, 02:04 PM | #9 |
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General Nuisance in a Private Conveyance
Drives: like it's rented Join Date: Nov 2008
Location: behind the wheel
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+1 on LSD!
Really, tire selection depends on what you want to do. I assume you are tracking your ride. R-Compounds are only good for sunny, dry track use and not recommended as daily drivers in variable weather conditions because they won't last long, as others have said, and lack the safety built into extreme performance tires like Bridgestone RE-11s or Dunlop Direzzas.
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