"Frank from Deeetroit" <dadurweird (AT) voyager (DOT) net> wrote

air through the already clogged radiator at slow speeds, BUT, Cup cars have
no radiator fans, SO, cautions will cause an already overheating engine to
overheat further.
HTH

On May 16, 5:32 pm, "Crusader" <cru... (AT) sbcglobal (DOT) net> wrote:

Duh....

On May 16, 8:54 pm, Thoth <T... (AT) Thoth (DOT) egy> wrote:

Mr. Helton, is that you?

Crusader wrote:
Of course they didn't throw one when DH was hollering on his radio about all
the debris on the track. Oh yeah, he likely would have passed JG if they'd
have done that. DHs car was faster and hadn't been blowing steam for more
than 100 laps, so it was almost a sure thing he'd blow by JG. Of course the
official explanation is that the debris wasn't in the driving groove, but GB
said that a car ran over some and threw it up in the air so that seems to
contradict the official story.

OTOH, a few weeks ago they threw a caution for debris that wasn't anywhere
near the driving area of the track (it was wayyyyyy outside the yellow
line). Track Wrasslin' is what it's becoming......now if someone would
just hit JG with a chair, they might have something I'd enjoy seeing.....
;-)

"Tannenbaum" <Slipsail (AT) noahmail (DOT) net> wrote

The shuttle is not designed to go to the moon, and you may be onto something
about getting from point A to point B using less fuel by traveling slower,
takes longer, maybe you could call it fuel economy.

Everything in the car is designed to
Oh, I get it, when you drive slower, you need less cfm to do the cooling,
right? So, a Winston Cup car does not need 3000+cfm when travelling at
45-55 mph pace car speed? Ya think that big Winston Cup radiator can cool
things down at a slower speed because it does not need massive amounts of
air that is needed at high speeds?

Engine aside ..... if you take a screen and move it through air, then the
faster the screen travels, the more air passes through it. That's well and
good, and relatively straight forward. But to cool and engine, you need to
move another fluid through the engine, ...... "absorb" some of the heat in
the mass of the engine, and then move that hot fluid to an exchanger where
that absorbed heat can be dissipated (i.e. the radiator itself). In almost
any case imaginable with engines (hell, even diesel engines on equipment
where speed of the vehicle is a moot point), when you reduce RPM, you
immediately begin to cool (assuming of course, that the cooling system is
functioning properly). The opposite was true (or at least appeared to be the
case) with Jeff Gordon's car, .... in that when they slowed (even at reduced
RPM), the engine was over_heating. This had to be a result of either debris
in the external exchanger (i.e. the radiator) - and increased speed moved
sufficient air through the fins which were still unobstructed, ..... or
cooling systems which are designed to only generate intended coolant
pressure at higher RPM's, .... IOW - these 'water pumps' only move the
required volumes of coolant at higher RPM's. I suspect it was a combination
of both.


"MW" <joe (AT) microsoft (DOT) com> wrote

"Frank from Deeetroit" <dadurweird (AT) voyager (DOT) net> wrote

Engines generate less heat at lower RPM (speed is traditionally a measure of
the car's travel, .... not the engine)

which lessons the burden on the
That's not neccessarily true at all. If the coolant is not being circulated
optimally, then there is an INCREASED burden on the cooling system (i.e.
it's trying to cool sans adequate circulation). These coolant pumps of
today's NASCAR engines are clearly designed to be optimal at higher RPMs

On May 16, 6:37 pm, "MW" <j... (AT) microsoft (DOT) com> wrote:
You're not wrong - all the drivers on INC and the BBs on Wind Tunnel
all said the same thing - Letarte and JG HATED seeing the final
caution, and that's why.

N.

"Mike/Speeed" <speeedracerREMOVE24 (AT) verizon (DOT) net> wrote

Lower RPM's permit the coolant to remain in the radiator for a longer period
of time. Longer amount of time spent in the radiator = more opportunity to
cool the fluid.

On Wed, 16 May 2007 17:32:08 -0400, "Crusader" <cru357 (AT) sbcglobal (DOT) net>
wrote:

I believe that JG was qouted later as saying that a caution should've
been thrown for the car that blew up/wrecked, or whatever, that had
Denny Hamlin's shorts in a wad there near the end.

Of course JG had already won the event and was in a much better
position to say that, giving the timing and all...But he seemed
sincere. Said the track was a mess and in need of a genuine clean-up
caution.

By the by Cru, did you see the Speed TV Wind Tunnel deal on DES and JG
last night? Pretty good guest lineup, lots of facts put out about the
2 that I'm sure the bulk of the 0-5-10 year NASCAR fans likely didn't
know. Made them both look pretty good overall. So much so that by the
end of the program, I was asking myself if this had an underlying
motive like getting folks to stop throwing stuff at JG since he and DE
got along so well...lol No, DeSpain said it was planned to have
happened while they were tied with wins and Jeff ruined it by winning
again (and again) before it could go off as planned...

I was sort of put off by RH saying that JG wasn't handed the "silver
spoon" ride and that the team was new and it was a chore to build it
up...Hendrick was strong when he got there, and he earned the ride
IMO, but it wasn't your basic startup-from-nothing team like RH was
poor mouthing it to be last night...Just like the 11 team wasn't "that
bad" when Hamlin showed up...They just hadn't had the chance to shine
with talent-challenged guys like Leffler driving it theretofore. I
mean I can see RH sticking up for/defending his "Wonderboy", but he
started to lay it on a little thick there for a while. At least Dave
got Rick to admit that DES had won HMS its very first NASCAR (Busch)
race...and it was saddening somewhat to hear Tim Richmond mentioned
and then promptly skirted right around without much ado. A tragic
story and figure indeed, but Richmond was destined to be great, just
like Davey Allison. History is what it is, and continually sweeping it
under the rug doesn't do it or us justice IMHO.