FrontEngineDragsters.Org Forum
Technical => Jon's Wheel House => Topic started by: spookie on December 30, 2019, 04:01:16 PM
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My FED runs 5.60s with 1.20 60ft times in 1/8mi.Have been using Hoosier 32/12-15 DO5,with tubes. Should I loose the tubes and is there a better tire for my 12in rims The Hoosiers have worked good with 6 to 6.5 psi,over 375 runs
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I am very happy with the M andH 12x33 tire !
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I'd try tubeless.
I too love my M&H slicks. Great service and they are the most consistent tire I've ever ran
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Go tubeless. I have run 33X12x15 CO9 Hoosier for 9 years. 5- 9.5 lbs depending on engine tune. Always stuck best 60ft was a .93 blown and a 1.01 NA. Going tubeless will lighten your tire weight up a bunch.
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I ran the Hoosier 31 X 12-15 for years. 12" wheel, no tubes, screws on both sides. I don't see the same tire listed today? I ran 7psi with 4.30 gear and a 1.69 primary. Ran 4.50@158 on a good track. Bruce Browning is my to go to guy at Hoosier tire Midwest in Springfield Illinois.
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which M&H are you fella's running? In case these new M/T's don't work out.
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Be carefull about comparing 60' times, a car with overhang will have a lower time then a straight up car because the car with overhang is 24" further that the start beams thus the time is based on 58' and not 60'. Other racers times don't mean a toot as long as I can hit my index. My car on 33x12x15 GY on a 10" rim(tubeless) with a 3.90 gear runs a 1.09-.10 60' without overhang, ands hits the 7.0 index. Tire compound only comes into play if you get new tires frequently, if not all compounds equalize after time due to runs/heat cycles, sun light, age. I can say that because by the time I get new tires, they don't have that compound in stock or they changed/discontinued it., put those on, car runs the same.