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Man from the land down under tops Daytona practice..

As it has so often been proven, anyone can win on the plate tracks! Marcos has just as good a chance as anyone and better than most due to the good speed on that team.
 
Hey All,

It's Daytona - a restrictor plate track. What do practice speeds really mean?

Was he in qualifying trim or race trim? Many teams (those in the top 35) don't even bother trying for the pole as you can sit at the tail end of the field and still win the race. Track position means very little in restrictor plate races.

-Ed-
 
Ol' man Martin on the staub! Rookie Trevor Bayne or the outside P.

Ya really can't go by qualifying on a restrictor plate track. Many run with race setup and know that track placement means nothing after they hook up two-by-two.

Caz
 
Restrictor plates are about as clever as dogchit and twice as nasty!
The proper equipment for keeping speeds down is a rev-limiter, which seems to be too sensible for NASCAR.

And Marcus won't win, he isn't one of the 'Inner Circle'.
:kilroy:
 
When Spencer started a race I always wondered who or what he would hit first. Hard to win with a damaged car! So did Montoya take after Spencer, or was it the other way around?
 
EasyEd said:
Hey All,

It's Daytona - a restrictor plate track. What do practice speeds really mean?

Was he in qualifying trim or race trim? Many teams (those in the top 35) don't even bother trying for the pole as you can sit at the tail end of the field and still win the race. Track position means very little in restrictor plate races.

-Ed-
Click to expand...

what do practice speeds mean at Daytona?

it shows you which two cars hook up a go the fastest i guess.....like you said qualifying position means nothing at Daytona. its all about how fast you can go and for how long. practice speeds with two cars are about 18 to 20 mph faster than qualifying speeds.

evidently RPM has a couple of fast cars for todays race.

should be interesting..........even Danica led late at the Nationwide race last night....anybody can win here.
 
anybody can win here.


yes anyone......even dale Jr....and according to the talking heads at speed (darrel waltrip) he will but waltrip also just got through saying carl edwards is his man....hes so fickle....
 
Hey All,

Restrictor plates are about as clever as dogchit and twice as nasty!
The proper equipment for keeping speeds down is a rev-limiter, which seems to be too sensible for NASCAR.
Click to expand...

I disagree - I think restrictor plate racing adds a completely different aspect to NASCAR racing. A very good exciting one. I hope NASCAR never loses the carburetor for fuel injection either unless they can find a way to maintain restrictor plate style racing even with fuel injection.

Rev limiters - bad idea - all they do is protect the engine from drivers who can't coordinate clutch and gas - we don't want that. The whole idea that a driver can "blow" an engine due to poor management of clutch, gas and gears adds an element of excitement/suspense to racing. Engine durability was the whole idea behind the Coke 600 - would the engines last? Don't want to lose that either. Besides rev limiters don't limit speed depending on what you do with transmission and rear end gear ratios.

-Ed-
 
EasyEd said:
Hey All,



I disagree - I think restrictor plate racing adds a completely different aspect to NASCAR racing. A very good exciting one. I hope NASCAR never loses the carburetor for fuel injection either unless they can find a way to maintain restrictor plate style racing even with fuel injection.

Rev limiters - bad idea - all they do is protect the engine from drivers who can't coordinate clutch and gas - we don't want that. The whole idea that a driver can "blow" an engine due to poor management of clutch, gas and gears adds an element of excitement/suspense to racing. Engine durability was the whole idea behind the Coke 600 - would the engines last? Don't want to lose that either. Besides rev limiters don't limit speed depending on what you do with transmission and rear end gear ratios.

-Ed-
Click to expand...

Actually Ed on this point I'll just come right out and say you're plain old wrong.
A V8 Supercar (for example) might be bouncing off rev-limiter at some 8,000rpm while topping out at around 290KPH down Con-Rod at Bathurst, but it doesn't prevent a catastrophic engine failure.
On the other hand, a rev-limiter allows an engine to build up speed immediately, unlike such a 'sophisticated hi-tech device' as a restrictor plate.

Restrictor Plates can and have been 'worked around' for years, but I believe they are a crude device which cause dangerous restarts as it takes a few laps for the pack to build up to racing speed.
The 'Flywheel Effect' as one commentator called it some time ago.

And IIRC the plates were supposedly introduced to bring speeds down due to possible insurance 'problems' related to crowd safety.

CART had the right idea with turbos, pop-off valves were issued by CART to teams on a race by race basis from a common pool, in theory each valve was equal, but while some variations might show up it was accepted that if you were issued a dud at one event you'd probably get a better one next time round.

Basic engineering is one thing, crude and rude solutions like plates need reviewing.

QED.
:kilroy:
 
I don't know what's right or wrong......but what I do know is that more other motosport forms use rev-limiting....NASCAR seem to be the only one that uses restrictor plate....
 
NASCAR engines have rev limiters. The difference is they are used to protect the engine not as a speed limiter, therefore they are set a little above the max expected rpms for each race and rarely come into play.
 
Hey All,

I can't find anything that says definitively whether or not NASCAR engines have rev limiters. My understanding is they do not as I do know that drivers can "blow" engines by over reving say at a take off from a pit stop or a missed shift. This is a good thing as it makes drivers have more skill.

As I understand it a rev limiter simply places a limit on the rpms an engine can achieve by affecting engine timing and of course would be set at a point past peak hp. That would allow engines to make more power more quickly if they were used at tracks like Talledega but I don't think that a rev limiter fundamentally reduces hp which is the whole point of what is desired. Engines at restrictor plate tracks make around half the hp they do on other tracks. It is the reduced hp that creates Talledega/Daytona style racing - whether it be the "packs" of the past or the two car "hookups" that we see today since the tracks are so much smoother. As the drivers continue to adapt to the new circumstances we may see the "pack" mentality come back but right now making the third car in line "work" is a problem.

The whole point to NASCAR is the variety of circumstances - tracks and cars (and of course the fenders and bumpers) that drivers have to be good at handling - that makes NASCAR so good.

-Ed-
 
EasyEd said:
Hey All,

I can't find anything that says definitively whether or not NASCAR engines have rev limiters. My understanding is they do not as I do know that drivers can "blow" engines by over reving say at a take off from a pit stop or a missed shift. This is a good thing as it makes drivers have more skill.

As I understand it a rev limiter simply places a limit on the rpms an engine can achieve by affecting engine timing and of course would be set at a point past peak hp. That would allow engines to make more power more quickly if they were used at tracks like Talledega but I don't think that a rev limiter fundamentally reduces hp which is the whole point of what is desired. Engines at restrictor plate tracks make around half the hp they do on other tracks. It is the reduced hp that creates Talledega/Daytona style racing - whether it be the "packs" of the past or the two car "hookups" that we see today since the tracks are so much smoother. As the drivers continue to adapt to the new circumstances we may see the "pack" mentality come back but right now making the third car in line "work" is a problem.

The whole point to NASCAR is the variety of circumstances - tracks and cars (and of course the fenders and bumpers) that drivers have to be good at handling - that makes NASCAR so good.

-Ed-
Click to expand...

NASCAR does not mandate the use of rev limiters but they do allow them except for the pit road specific speed limiter. The teams are adding them to the ignition boxes to save their engines (especially from the dummys that win a race and do donuts with the pedal to the floor where you can here the limiter cutting out).

http://www.nelsonspecialties.com/ignition_boxes.html
 
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