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Re: [ST] 190 on rear
- Subject: Re: [ST] 190 on rear
- From: Tom Emberson <ate_st@xxxxxxxxxx>
- Date: Wed, 18 Dec 2002 10:14:54 -0600 (CST)
On Tue, 17 Dec 2002, Colt4530 wrote:
> Actually, the answer to both is, "yes, that's correct."
>
> A top Fuel dragster runs 6 to maybe 15 psi in the rear and
> probably 75 psi in the front. The weight distribution is no
> where near 50/50, so it works. One reason a T.F. dragster is so
> long is to move the weight off of the front tires. The small
> high pressure tires have very low rolling resistance. If the
> bicycle tire and the monster truck tire were inflated to 30 psi
> each and loaded with the same weight, the contact patch would
> be identical, barring something unusual in the construction of
> the truck tire.
>
> The loaded with the same weight seems to be the hang up.
> Remember, pounds divided by psi = inches.
Is this flame bait? It sure does smell in here. My truck tires
are kept at 32 PSI, and my front bike tire is close at 34-36,
I can guarantee that the truck tires have much larger contact
patches.
As far as the TF dragster, we won't even get into the dynamics
of those vehicles, the length is a combination of many factors,
I would GUESS that one of the main factors is that they want to
put as long of a lever on as little down force(ie. drag) as
possible. As well, a longer vehicle is going to be more stable
at 325 MPH. I am still completely amazed at how they keep the
front end down on those cars!
t.
/*************************************************************
Thomas Emberson, Dallas, TX
'00 Yamaha WR400F (self abuse in style)
'01 Suzuki TL1000s
'03 Yamaha FJR1300
sold: '98 ZX6e, '99 ZX9r, '95 EX500
killed by rocks: '01 BRG Sprint ST (18 months old, 25,152 miles)
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