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John Kilgore...if winning was easy, losers would do it.
Team9Racing BMW 325i, Old Faithful (with a little evil) -
Well yeah. Lowering a car and reducing the airflow underneath reduces drag, thus reducing necessary energy to keep the car at a constant speed.
You could obtain this same effect by cutting the springs...although even as a drifter I can't bring myself to ever own a vehicle with cut springs. They're just SO bad.Nick Stone -
I'm not buying 8%. Sounds like a job for Mythbusters to me.
Cutting springs makes them shorter and increases the spring rate. I can see that this doesn't have to be a bad thing. To excess, surely it is.Charles
TAC/TVR
#72 SA rallyx Impreza 2.5 RS
#74 "CSP" time trial MiataComment
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I call marketing BS (sorry if that is redundant). I don't doubt that there could be some benefit, but 8%? Both cars I have lowered have seen no mileage increase, and one was with a magical Eibach pro-kit. I keep very good mpg records and would have noticed any significant change.Rod H
Bringing a knife to a gun fight.Comment
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The data is there, but I'd like to see a 3rd test just to verify. To do this correctly, you'd want to take 3 data samples and use the median.Matt W.
18 SM - Lancer Evolution MR
15 MR - Volkswagen Beetle
Sponsors: Satellite Racing - Defined PerformanceComment
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There's a 10 degree temperature difference between the 2 tests. Maybe the VW ECU leaned it out a bit due to temperature.
Correction 6 degree temperature difference.
But still... 8%? C'mon!John W8
CSP 10 Yellow MiataComment
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Dont forget though rod, when you lowered the car, you also probably put stickier tires on, and that does make a difference.Originally posted by rodhx View Post
With some eco tires on the rabbit, I was getting 33 on the highway (never seen over 28), and with the star specs I was getting 25.M. Cholewa
Because they heard I liked my name, so they put my name as my name so I could have my name in my name... all the time.Comment
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Nope...same street wheels and tires before and after on both the miata and the civic. No discernable change in mileage regardless of city, highway, or mixed driving.Originally posted by Cholewa View PostRod H
Bringing a knife to a gun fight.Comment
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Maybe you just need a german car
M. Cholewa
Because they heard I liked my name, so they put my name as my name so I could have my name in my name... all the time.Comment
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Got two already, but one is confused and thinks it is english
Rod H
Bringing a knife to a gun fight.Comment
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You clearly didn't lower it enough
Nick StoneComment
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Tire rub is not aero.M. Cholewa
Because they heard I liked my name, so they put my name as my name so I could have my name in my name... all the time.Comment
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Yes, it seals the gap so air can no longer flow between the tire and inner fender, reducing turbulenceOriginally posted by Cholewa View Post
Nick StoneComment
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at the cost of how much friction? (forward momentum being turned into heat?)M. Cholewa
Because they heard I liked my name, so they put my name as my name so I could have my name in my name... all the time.Comment
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