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Whats wrong with NASCAR engine builders
Nascar NASCAR and other professional stock car racing (rec.autos.sport.nascar)
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#31
 
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Re: Whats wrong with NASCAR engine builders -
03-08-2009
, 07:11 PM
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"Fish" <davester_349 (AT) hotmail (DOT) com> wrote in message news:39d6e8d5-1d81-461a-b71d-7c79f6dd68fe (AT) q18g2000vbn (DOT) googlegroups.com... yes it limits the speed of the engine, but its a preventative measure put in by the teams to protect the engine, theres no where in the nascar rulebook that says you have to run you're car at a max of X RPM and no one said it was... |
the rear gear ratio, there is a de facto RPM limit specified in
the rule book.
John
#32
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"Joey Tribiani" <Joey (AT) yahoo (DOT) com> wrote in news:s%Usl.39601$Zp.7000 @newsfe21.iad: and no one said it was... Actually, since NASCAR sets both the transmission gear ratios and the rear gear ratio, there is a de facto RPM limit specified in the rule book. John |
speed will be the limiting factor... with set gear and rear gear ratios,
they are somewhat shooting for a speed limit based on data of what the
engines are turning... you get more power on top end than the other guy
you'll go faster and turn higher RPM's with the same gears... until you
break something...<G>
#33
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Actually, since NASCAR sets both the transmission gear ratios and the rear gear ratio, there is a de facto RPM limit specified in the rule book. John |
Seems like I remember a couple of ratios to choose from.
maybe not.
Dan
****************************************
What's the difference between roast beef and pea soup?
Anyone can roast beef.
#34
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In article John McCoy <igopogo (AT) ix (DOT) netcom.com> wrote: Actually, since NASCAR sets both the transmission gear ratios and the rear gear ratio, there is a de facto RPM limit specified in the rule book. John Don't they give you a range, albeit small, for your gears? Seems like I remember a couple of ratios to choose from. maybe not. Dan |
chosen the other'n when the engines died.
--
Tom in Bristol
#35
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"John McCoy" <igopogo (AT) ix (DOT) netcom.com> wrote in message news:Xns9BC8CD699FCF9pogosupernews (AT) 216 (DOT) 168.3.30... Actually, since NASCAR sets both the transmission gear ratios and the rear gear ratio, there is a de facto RPM limit specified in the rule book. John not really... unless they specifically limit the RPM's of the engine, the speed will be the limiting factor... with set gear and rear gear ratios, they are somewhat shooting for a speed limit based on data of what the engines are turning... you get more power on top end than the other guy you'll go faster and turn higher RPM's with the same gears... until you break something...<G |
speed, when you're up in the 180mph range. And all these guys
are pretty much equal when you look at power. So limiting the
gear with an effective limit on speed, limits the RPM.
Like I said, not an explicit limit, but a de facto one.
John
#36
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"Chuck Steak" <chuck_steak (AT) nospam (DOT) com> wrote in message news:zY_sl.2048$gm6.1714 (AT) nwrddc02 (DOT) gnilink.net... Don't they give you a range, albeit small, for your gears? Seems like I remember a couple of ratios to choose from. maybe not. Think yer right...two ratios to chose from. Jack said he wished they'd chosen the other'n when the engines died. |
Two to chose from. (I don't think they're given any choice on
transmission ratios).
To me, that's yet another shining example of how screwed up NASCAR
is right now. If they want to set a limit, then set a limit - this
is the max ratio you can run. Then let the teams run whatever they
want under that limit.
John
#37
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Thing is, it takes a lot more power just to get a little more speed, when you're up in the 180mph range. And all these guys are pretty much equal when you look at power. So limiting the gear with an effective limit on speed, limits the RPM. Like I said, not an explicit limit, but a de facto one. John |
#38
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#39
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You got that right, John. Teams spend 90% of their effort getting that last 10% of speed. |
saying that because of how tight nascar is with the COT template,
there's no room for teams to work chassis- and body-wise so they have
to go to the engines and are now pushing them harder than ever to get
that last ounce of speed
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