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Topic: WoO Tire Choices
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Page 2 of 2 of 23 replies
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March 13, 2016 at
07:33:16 PM
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03/21/2010
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310
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Reply to:
Posted By: sc lm race fan on March 13 2016 at 07:00:41 PM
I like reading these posts about how to fix 410 winged sprint car racing and compairing it to the super late models. The board cars did the same thing as the winged sprints do now. Wing over on the left rear on turn entry and and on the left rear on exit. Once they removed the side boards, the cars got tight on entry and no forward bite. That is why they went to the 4 bar cars and the rear end tuck under on the left rear when on the throttle. It puts the right side of the car into the wind. Their engines are 428 to 450 Cubic inch motors less RPM turned less rebuilds. Also with out the board to lay on you have to "Oh no not that word" LIFT when going into the turns, even when the track is tacky during the heat races...
It's the 9500 RPM turned on the 410 sprint motors that cause all the problems. If it was keeped to say 8200 to 8500 RPM less rebuilds. The other thing I keep saying is the side boards on the wings. Like the Board or wedge cars aka late models, with the car winged over you can almost flat foot it into the turns in the heats.
It's funny you take the same sprint car with out the wings and it's 1 1/2 to 2 seconds a lap slower with the same driver same night.
It's also funny you talk to drivers that the week before ran with a wing most run off the top of turn 1 or turn 3. Why no side board to make the car loose on entry. So what do you do move the right rear out from 16 inches to 18 1/2 to 20 inches.
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When the left rear tucks up in the fenderwell it creates drive off of the left rear. Has nothing to do with putting the right side of the car to catch the air. A fast late model is driven as straight as possible to not scrub off the speed. Watch Bloomer & Davenport. The slicker the track the straighter the better.
I have yet to see any 9500 rpm's on the tel tacs, unless it came out of gear..
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March 14, 2016 at
02:52:29 AM
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Joined:
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01/27/2005
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411
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Reply to:
Posted By: straight shooter on March 13 2016 at 07:33:16 PM
When the left rear tucks up in the fenderwell it creates drive off of the left rear. Has nothing to do with putting the right side of the car to catch the air. A fast late model is driven as straight as possible to not scrub off the speed. Watch Bloomer & Davenport. The slicker the track the straighter the better.
I have yet to see any 9500 rpm's on the tel tacs, unless it came out of gear..
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It's called rearsteer moves the right side of the car to the right when the left rear tucks under. I know I have put a jack under the rearend of a chassis and watched it happen. It only moves the car to crab about 6 to 8 inches. It looks like the Napcars do when they come at you down a straight on tv.
9500 rpm unless you are in the pit during qualifying or a heat race. You should not see 9500 rpm, if you do you are spinning tires during the main.
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March 14, 2016 at
12:06:45 PM
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03/21/2010
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310
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9500 rpm unless you are in the pit during qualifying or a heat race. You should not see 9500 rpm, if you do you are spinning tires during the main.
Please explain what you mean by that statement. I am saying never 9500 or you will be bringing it home in a bushel basket!
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March 14, 2016 at
03:33:37 PM
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Joined:
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04/19/2009
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114
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Reply to:
Posted By: straight shooter on March 14 2016 at 12:06:45 PM
9500 rpm unless you are in the pit during qualifying or a heat race. You should not see 9500 rpm, if you do you are spinning tires during the main.
Please explain what you mean by that statement. I am saying never 9500 or you will be bringing it home in a bushel basket!
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I also havn't seen 9500 without coming out of gear, but have seen 8900 to 9100 to qualify. I don't twist mine past 8500.
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