Top Speed
hollar back! hahaha! 
One Slow Civic.... But I can take turns pretty well :-)
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Originally Posted by xX03EXx
The ex 5spds do not have a speed limiter. And the speedo is inaccurate after 100 anyway. Also, unless this kid's friend was driving down a 45 degree slope with a 30 mph wind at his back, i Highly doubt the 135 thing. Although it could just be an errored speedo and some wind behind his back
Registered!!
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Rep Power: 0 I didnt know that they had to govern based on the tire rating...... thanks u did ur homework. Fastest 150 in a 99 SAAB 9-5 and 160 in a WS6 w/5 people in the car and the t tops down runing out of road.
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Originally Posted by Blahman2
How do you know its inaccurate? Prove it.
One Slow Civic.... But I can take turns pretty well :-)
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Originally Posted by S2000man01
As your speed increases, the shape of your tires flex and cause the speedometer to become exponentially inaccurate varied directly with your speed. That's just basic physics.
Then again... not everyone in a honda has z-rated tires
The Beez Kneez
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Originally Posted by Blahman2
Then again... not everyone in a honda has z-rated tires
Last edited by acidbaby; Apr 14, 2005 at 09:55 PM.
Se7enCyrus Racing/Motorsports
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Originally Posted by Blahman2
I have z-rated tires, good for speeds up to 180 and plus some. Your telling me my tires are going to cause my speedo to be inaccurate when they are built for speed.
Then again... not everyone in a honda has z-rated tires
Then again... not everyone in a honda has z-rated tires
Yea...way to waste your money u dumbass....lol. Good for speeds 180++....in a civic......GOOD FOR.....NOT MAKES YOUR. lol
so what? 
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Originally Posted by Blahman2
I have z-rated tires, good for speeds up to 180 and plus some. Your telling me my tires are going to cause my speedo to be inaccurate when they are built for speed.
Then again... not everyone in a honda has z-rated tires
Then again... not everyone in a honda has z-rated tires
Aside from that, yes YOUR z-rated tires flex at high speeds too. Sorry dude, it's physics. The centrifugal force at those speeds are much stronger than the stiffness of your tires. The tires being built for speed have NOTHING to do with them flexing or not flexing. What it means is that they are built to resist the amount of friction at those speeds, therefore the tire will not shred itself to pieces from the immense friction and g-forces of those speeds.
but they still flex and cause your speedo's accuracy to be off directly proportional to your speed.
at 150mph you have probably a 4% speedometer inaccuracy, the extra 2-3% being from tire flex.
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Rep Power: 399 notice here how they talk about the flex rating of a FORMULA ONE RACE CAR TIRE!
so yes, your Z-rated tires flex too.
http://64.233.187.104/search?q=cache...ient=firefox-a
FYI, the force variation is determined by how much the tire will flex at a given speed, and the spring rate is how much flex while cornering.
so yes, your Z-rated tires flex too.
http://64.233.187.104/search?q=cache...ient=firefox-a
But after the tire is cured, it undergoes a special inspection procedure that measures force variation and spring rate. The flex characteristics of each tire are marked on the tire so a race team knows how much air pressure to add to change the effective spring rate of the suspension.
Last edited by S2000man01; Apr 14, 2005 at 11:00 PM.
One Slow Civic.... But I can take turns pretty well :-)
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Originally Posted by SevenCyrus
Yea...way to waste your money u dumbass....lol. Good for speeds 180++....in a civic......GOOD FOR.....NOT MAKES YOUR. lol
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From: Milwaukee, Wisconsin, US
Rep Power: 399 He might have bought them from someone who decided not to use them and didn't want to ship them. Granted you can get crappy Z-rates tires, but if it's a decent brand, and their treadlife is low (220 or lower) then they are probably a decent tire.
top speed
i can take my 4th to about 105 and have to shift cause it is up at about 7000 rpm's ill take it to 5th and take that to about 115-120 i have topped that yet and i drive a 02 civic ex but trust me 115-120 is a crazy feeling and i doubt 135 is possible cause while im at 115 im almost redlining again. btw it does take forever to get the car to that speed and the fact that my engine is 99.9% stock doesnt help me the .1 percent ill put into my short shifter which is but isn't an engine mod
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