CraZX14
Expert Class
Posts: 399
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posted March 15, 2012 12:37 PM
Rear View Mirrors at the Track
Back when the 14R first came out, I read something from Brock that mentioned how having mirrors on at the track would cost, if memory serves me, around 7 horsepower on the top end due to wind resistance. I'm not saying it isn't possible, but to me, does seem unlikely. I've ran with and without mirrors and I cannot say that I noticed a difference in trap speed. Also, 7 hp is quite a bit - and I'm guessing my wrist doesn't have 7 horsepower - but I can use my wrist to turn the mirrors in on a ZX-14 . . . so my point is, if the wind was really dragging at them that much, wouldn't they always turn in from the wind resistance when racing? I know mine would stay in place just fine. Curious what other opinions are . . .
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2003 L.E. Hayabusa
  
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BLK ICE
Pro
we'll leave the light on for u
Posts: 1709
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posted March 15, 2012 01:27 PM
 Edited By: BLK ICE on 15 Mar 2012 21:46
+1
I would like to know also.
I do know if I sit up v/s tucking tight my bike runs .06-.07 slower. When I'm out front and know I have the race won, I will sit up so the guy in the other lane can't figure out my fastest pass.
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BrooklynNYZX12
Zone Head
Posts: 520
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posted March 15, 2012 06:03 PM
On my 2003 ZX12 the mirrors were worth 2-3 mph in trap speeds at the track.
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Orient Express Top Street Bike Winner 8-4-07
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CraigChrist
Pro
BAWLS
Posts: 1043
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posted March 15, 2012 06:26 PM
3hp = 1 mph. I never saw that much of a difference in mirrors though. I ran the same time with them as I did without.
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60ft-------1.42
1/8th------5.97
mph-------119
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dakota9498
Pro
Posts: 1181
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posted March 16, 2012 04:25 AM
quote:
3hp = 1 mph. I never saw that much of a difference in mirrors though. I ran the same time with them as I did without.
But you were only running the 1/8, it would probably be a bit more in the 1/4. With that being said, I know a lot of guys that bracket race that leave them on. There the name of the game is consistancy and they like to be able to see behind them.
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2008 ZX14
Never argue with a fool, onlookers may not be able to tell the difference. ~Mark Twain
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Beondwacko
Expert Class
Posts: 393
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posted March 16, 2012 08:00 AM
I noticed about 1/2 a mph in my trap speed with the mirrors tucked in versus out.
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08' Atomic Silver, PCIII, Brocks pipe,BMC, -1, strapped front end
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CraZX14
Expert Class
Posts: 399
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posted March 16, 2012 09:06 AM
Yeah, I've noticed over 1/2 mph just between runs without any changes. And the 14 mirrors look like they are designed to cut through the wind pretty good anyway, so I would think that the difference would really be small.
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2003 L.E. Hayabusa
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