Turbo Autocrossers
#42
I think the rumors of the Goodyears being wider arent quite 100%. The measurements I saw compared the Goodyears on a 10" wheel with Hoosiers on a 9". I wouldn't hold my breath until they are measured apples to apples.
Depending on price, I'll probably be giving the Goodyears a try for Nationals. That or switching over to 13x10s and some bias slicks.
Depending on price, I'll probably be giving the Goodyears a try for Nationals. That or switching over to 13x10s and some bias slicks.
#47
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Goodyear South has them in stock and can get them from time to time. In the 275/35/15 they are within $20 each of the Hoosier A6. Unmounted they are slightly wider than the A6, once on a 15x10" rim there is no difference in the width of the tires. Their competitive live is longer than the A6 (50-55 runs vs 30-35 runs) but they will cord faster than the A6(60-65 runs vs 95-100 runs) During their early competitive life(0-20 runs) the GY's are ever so slightly slower. Through their mid competitive life they are a couple tenths faster (20-40 runs). During their end of life they are a good .25-.50 second faster than a A6. Once the GY's have corded at 65 runs the A6 is clearly faster for it's last 30 or so runs till it cords at 95.
This is just MY experience on MY car and was not conducted in any sort of scientific fashion. This should not be considered an endorsement for or against either tire or tire manufacture. Professional driver on a closed course, please do not try this at home.
This is just MY experience on MY car and was not conducted in any sort of scientific fashion. This should not be considered an endorsement for or against either tire or tire manufacture. Professional driver on a closed course, please do not try this at home.
#49
I have a small turbo going in any day now, I picked the gt2554 for quick response and plan on doing a TPS/RPM based boost control to give me more throttle control on the 245 street tires I will be on. Left foot braking has it's advantages if you have the patience to learn it, which I don't. Many national champions right foot brake, I wouldn't get too caught up trying to learn LFB if it feels completely wrong to you, like it does for me. It's easy to spot some LFBers on course, look for the brake lights to be on an extra long time into the corner as they often rest their left foot lightly on the brake pedal even after full throttle. Note some new cars are very unLFB friendly and go into idiot driver mode when the ECU senses brake and throttle simultaneously.
#50
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I have a small turbo going in any day now, I picked the gt2554 for quick response and plan on doing a TPS/RPM based boost control to give me more throttle control on the 245 street tires I will be on. Left foot braking has it's advantages if you have the patience to learn it, which I don't. Many national champions right foot brake, I wouldn't get too caught up trying to learn LFB if it feels completely wrong to you, like it does for me. It's easy to spot some LFBers on course, look for the brake lights to be on an extra long time into the corner as they often rest their left foot lightly on the brake pedal even after full throttle. Note some new cars are very unLFB friendly and go into idiot driver mode when the ECU senses brake and throttle simultaneously.
#53
I'd move the engine rearward...lol - http://forum.miata.net/vb/showthread.php?t=457529
but really just simple throttle control...dip into 10% throttle early to minimize time for spool up.
but really just simple throttle control...dip into 10% throttle early to minimize time for spool up.
#56
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This past Sunday my set up was pulling -.73 to -.75g braking in an Autocross situation..admittedly my current brakes SUCK. With the new 4 wheel BBK and ABS I am looking to be right at -1.00g. The car will also pull .74 to .75g acceleration in 2nd gear and the highest sustained latteral number I have seen in a sweeper was 1.73
#57
...although, using LFB can teach to you brake too much when more speed could be carried through entry and the corner.
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