rec.autos.simulators

N4 - Daytona & Rev Limiter problems

Dog-Le

N4 - Daytona & Rev Limiter problems

by Dog-Le » Wed, 28 Feb 2001 03:27:41

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Grrrr....

Restrictor plates are NOT Rev Limiters!  They are _horsepower_ limiters.

I assure you that if a WC driver mashes his gas pedal down in neutral, the
damned thing will blow up.

-Larry


> edit edit edit....c'mon folks....your revs are limited by the plate
> restrictor.
> and quite closely matching the real thing...thats what a sim is supposed
to
> do
> isn't it?
> (I'm gonna get me the code for F15 SE III and mate the two jet engines
with
>  the N4 cars....why not?)
> dave henrie


> > I can hardly get N4 up to a decent speed because the rev-limiter kicks
in
> > and therefore my Daytona Speeds suck,

> > Can the rev-limiter be changed or removed?? With the limiter you can't
> even
> > BLOW the engine up !!!!

> > Any suggestions???????????

> > THANKS !!!!!!!!!!!!!!!!!!!!!!!!

> > Tim A. Deatherage

> > www.timdeatheragecpa.com

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Dog-Le

N4 - Daytona & Rev Limiter problems

by Dog-Le » Wed, 28 Feb 2001 03:28:56

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Absolutely correct.

BTW... One hell of a fine race this weekend, JTRIV.  Enjoyed the long draft,
and your exceptional manners on the track  :)

-Larry (LTB)


> Actually it's not the plate he's talking about, it's the rev limiter that
is in
> the ignition box. This drops a cylinder to keep the engine below a set
RPM.
> (you can hear the engine mis-firing when you hit it)  I'd say this is a
valid
> change as the teams choose the RPM limit. I seem to remember in the
Daytona 500
> the TV folks reported that a driver (don't remember who) was hitting the
rev
> limiter in the draft and they had him switch to the backup ignition box
that
> doesn't have a limiter.

> JTRIV


> > edit edit edit....c'mon folks....your revs are limited by the plate
> > restrictor.
> > and quite closely matching the real thing...thats what a sim is supposed
to
> > do
> > isn't it?
> > (I'm gonna get me the code for F15 SE III and mate the two jet engines
with
> >  the N4 cars....why not?)
> > dave henrie


> > > I can hardly get N4 up to a decent speed because the rev-limiter kicks
in
> > > and therefore my Daytona Speeds suck,

> > > Can the rev-limiter be changed or removed?? With the limiter you can't
> > even
> > > BLOW the engine up !!!!

> > > Any suggestions???????????

> > > THANKS !!!!!!!!!!!!!!!!!!!!!!!!

> > > Tim A. Deatherage

> > > www.timdeatheragecpa.com

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Dog-Le

N4 - Daytona & Rev Limiter problems

by Dog-Le » Wed, 28 Feb 2001 03:30:01

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What gear did you use ?

I'm ok at Dega, but my Daytona car SUCKS.

-Larry


> Thats what I did Michael.. It alwayz works for me! I am in the low
> 190s & with draft 196+ going into turn 3.. Nice....Real nice!! <g>



> | Re-gear the car.
> |
> <snipped>

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JTRI

N4 - Daytona & Rev Limiter problems

by JTRI » Wed, 28 Feb 2001 05:17:25

Thanks man.. enjoyed that race myself. It's hard to find smart and considerate
racers like yourself, but very enjoyable when you do.

JTRIV


> **** Post for FREE via your newsreader at post.usenet.com ****

> Absolutely correct.

> BTW... One hell of a fine race this weekend, JTRIV.  Enjoyed the long draft,
> and your exceptional manners on the track  :)

> -Larry (LTB)


> > Actually it's not the plate he's talking about, it's the rev limiter that
> is in
> > the ignition box. This drops a cylinder to keep the engine below a set
> RPM.
> > (you can hear the engine mis-firing when you hit it)  I'd say this is a
> valid
> > change as the teams choose the RPM limit. I seem to remember in the
> Daytona 500
> > the TV folks reported that a driver (don't remember who) was hitting the
> rev
> > limiter in the draft and they had him switch to the backup ignition box
> that
> > doesn't have a limiter.

> > JTRIV


> > > edit edit edit....c'mon folks....your revs are limited by the plate
> > > restrictor.
> > > and quite closely matching the real thing...thats what a sim is supposed
> to
> > > do
> > > isn't it?
> > > (I'm gonna get me the code for F15 SE III and mate the two jet engines
> with
> > >  the N4 cars....why not?)
> > > dave henrie


> > > > I can hardly get N4 up to a decent speed because the rev-limiter kicks
> in
> > > > and therefore my Daytona Speeds suck,

> > > > Can the rev-limiter be changed or removed?? With the limiter you can't
> > > even
> > > > BLOW the engine up !!!!

> > > > Any suggestions???????????

> > > > THANKS !!!!!!!!!!!!!!!!!!!!!!!!

> > > > Tim A. Deatherage

> > > > www.timdeatheragecpa.com

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Michael Basde

N4 - Daytona & Rev Limiter problems

by Michael Basde » Wed, 28 Feb 2001 08:12:36

3.17

> **** Post for FREE via your newsreader at post.usenet.com ****

> What gear did you use ?

> I'm ok at Dega, but my Daytona car SUCKS.

> -Larry



> > Thats what I did Michael.. It alwayz works for me! I am in the low
> > 190s & with draft 196+ going into turn 3.. Nice....Real nice!! <g>



> > | Re-gear the car.
> > |
> > <snipped>

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Michael Basde

N4 - Daytona & Rev Limiter problems

by Michael Basde » Wed, 28 Feb 2001 08:27:24

The rev-limiter is for all gears not just 4th.  Your engine guy usually
identifies a rev limit that he is comfortable with.  The range is usually
very narrow (+- 200 rpm) and this serves as a starting point for your gear
set-up; not the other way around.  Typically you leave some room in the rev
range on speedways to account for drafting.

with the limiter.

I'm not sure I understand what you mean here.

Actually they were first used to protect the engine against
clutch/drivetrain failure.  That way if something relatively inexpensive
broke, you wouldn't lose a $50,000 motor.  Drivers are very competent at
shifting up and down.

limiter? Does ARCA run a

This is more of a team decision than anything else.  Yes, ARCA runs 2
ignition systems (as most racing series do).  When I used to race, most of
the teams used to run a chip in the second box as well as the first; for the
reason I explained above.  However the second box typically had a higher rev
limiter (no more than 400-500 rpm higher - usually  200-300rpm) so that in
the event that you need a little extra oomph when it came down to the last
few laps of the race, (or you were off in your gearing) you had the option
to switch to the second box.

Hope this helps some.

Mike

Michael Basde

N4 - Daytona & Rev Limiter problems

by Michael Basde » Wed, 28 Feb 2001 08:29:22

You're right and wrong.

Yes, restrictor-plates are NOT rev-limiters.  BUT if a driver mashes the gas
in neutral it will not blow up because of the rev-limiter.


> **** Post for FREE via your newsreader at post.usenet.com ****

> Grrrr....

> Restrictor plates are NOT Rev Limiters!  They are _horsepower_ limiters.

> I assure you that if a WC driver mashes his gas pedal down in neutral, the
> damned thing will blow up.

> -Larry



> > edit edit edit....c'mon folks....your revs are limited by the plate
> > restrictor.
> > and quite closely matching the real thing...thats what a sim is supposed
> to
> > do
> > isn't it?
> > (I'm gonna get me the code for F15 SE III and mate the two jet engines
> with
> >  the N4 cars....why not?)
> > dave henrie


> > > I can hardly get N4 up to a decent speed because the rev-limiter kicks
> in
> > > and therefore my Daytona Speeds suck,

> > > Can the rev-limiter be changed or removed?? With the limiter you can't
> > even
> > > BLOW the engine up !!!!

> > > Any suggestions???????????

> > > THANKS !!!!!!!!!!!!!!!!!!!!!!!!

> > > Tim A. Deatherage

> > > www.timdeatheragecpa.com

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JTRI

N4 - Daytona & Rev Limiter problems

by JTRI » Wed, 28 Feb 2001 08:57:11


> >From your ARCA days, is the rev limiter for 4th gear while racing?

> The rev-limiter is for all gears not just 4th.  Your engine guy usually
> identifies a rev limit that he is comfortable with.  The range is usually
> very narrow (+- 200 rpm) and this serves as a starting point for your gear
> set-up; not the other way around.  Typically you leave some room in the rev
> range on speedways to account for drafting.

> > Doubtful as you know the RPM of your racing gear and wouldn't hold it back
> with the limiter.

> I'm not sure I understand what you mean here.

Just meant that 4th gear is not usually limited by the rev limiter unless the
gearing was wrong and teams wouldn't overgear and use the limiter to keep from
over reving.

Thanks... this is what I was trying to say for an option in the area of the rev
limiter. That option for that extra oomph, or in some cases you geared wrong for
the fast draft you are in. The motor would be short lived even at a slightly
higher RPM, but it would be nice to have as an option.

Thanks Mike

JTRIV

Wosc

N4 - Daytona & Rev Limiter problems

by Wosc » Wed, 28 Feb 2001 13:02:35

The guy is complaining about lack of power because he "can hardly get N4 up
to a decent speed"...he just doesn't realize that the cars don't have as
much power as at other tracks...

JB


> **** Post for FREE via your newsreader at post.usenet.com ****

> Actually, no.  That might be what Papy is using it for, but restrictor
> plates don't limit RPM's.  They limit horsepower.

> What Papy has, by design or not, is in reality a Rev Limiter.

> -Larry



> > They call it a restrictor plate...they use them on big tracks to slow
the
> > cars down...they restrict flow of gas to the engine...thus less RPMs...

> > JB



> > > I can hardly get N4 up to a decent speed because the rev-limiter kicks
> in
> > > and therefore my Daytona Speeds suck,

> > > Can the rev-limiter be changed or removed?? With the limiter you can't
> > even
> > > BLOW the engine up !!!!

> > > Any suggestions???????????

> > > THANKS !!!!!!!!!!!!!!!!!!!!!!!!

> > > Tim A. Deatherage

> > > www.timdeatheragecpa.com

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Uncle Feste

N4 - Daytona & Rev Limiter problems

by Uncle Feste » Wed, 28 Feb 2001 13:13:22


> **** Post for FREE via your newsreader at post.usenet.com ****

> What gear did you use ?

> I'm ok at Dega, but my Daytona car SUCKS.

FWIW, I use a final 4th ratio of 2.83 & get similar speeds.

--

Fester

Uncle Feste

N4 - Daytona & Rev Limiter problems

by Uncle Feste » Thu, 01 Mar 2001 07:16:46


> A little OT Uncle Fester, How long can you go on tires with
> your setup? I can barely get 50 laps with my present setup...
> Tia.....Thom_j.

Well, you're a little smoother than I am.  I get around 40 to a set.

--

Fester

Thom j

N4 - Daytona & Rev Limiter problems

by Thom j » Thu, 01 Mar 2001 13:47:14

Thanx for the info.. Maybe I'm just slower..eh? screech ..lol <g>
Cya online!! Thom_j.


| >
| > A little OT Uncle Fester, How long can you go on tires with
| > your setup? I can barely get 50 laps with my present setup...
| > Tia.....Thom_j.
|
|
| Well, you're a little smoother than I am.  I get around 40 to a set.
|
| --
|
| Fester


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