93 - 3700 to 4000 RPM's Power Band

[Steve]

When my 93 Miata reaches 3700 to 4000 RPM's it really starts to
pick up power. My question is : Do all the 1.6's Power band start
when reaching 3700 to 4000 RPM's or is my car lacking power in the
lower RPM range? Can I do something to get more bottom end power?
I have a K & N air filter and the timing isn't up to 14 deg.
Thanks in advance , Steve

[Ron Loewy]

I think that my car is about the same.

(It's a 93 too)

Ron.

Steve <swe...@home.com> wrote in message 36C1D8A3...@home.com...

[SOLO MIATA]

For my thoughts on that see my recipe for HP page at
http://members.aol.com/solomiata/miataCSP.html

-Randy

> When my 93 Miata reaches 3700 to 4000 RPM's it really starts to
>pick up power. My question is : Do all the 1.6's Power band start
>when reaching 3700 to 4000 RPM's or is my car lacking power in the
>lower RPM range? Can I do something to get more bottom end power?
>I have a K & N air filter and the timing isn't up to 14 deg.
> Thanks in advance , Steve
>

Find out about CSP Miata sway bars, replacing the 1.6 flowmeter w/larger RX7
unit, 1.6 to 1.8 swap, determine if you have a LSD, Torsen LSD swap, Recipe for
HP, or read about Mazda 4cylinder interchangability?
http://members.aol.com/solomiata/MiataCSP.html

[LRobin9900]

Your car runs just it supposed to.
The power band is between the Torque
peak and power peak 4000- 6500rpm

[Rexven]

On Wed, 10 Feb 1999 19:06:09 GMT, Steve <swe...@home.com> wrote:

> When my 93 Miata reaches 3700 to 4000 RPM's it really starts to
>pick up power. My question is : Do all the 1.6's Power band start
>when reaching 3700 to 4000 RPM's or is my car lacking power in the
>lower RPM range? Can I do something to get more bottom end power?
>I have a K & N air filter and the timing isn't up to 14 deg.
> Thanks in advance , Steve

That's about the normal place where they start to come alive and a
further surge is felt around 4800rpm. Opening up the intake/exhaust
and bumping the timing on my '93 made the high end more noticable but
the biggest change was in the ease of revving at higher speeds when I
opened the intake! JR-CAI's might not give major HP gains, but they do
improve the ease of which the motor breathes. :) now if I can just
find a good RX-7 MAF sensor...

[Ephar Smith]

I've found that mine ('92, owned for 3 weeks) has the same
phenomenon and it makes it more fun. Fourth gear is useless if you
don't want speeding tickets, fifth is only for highway crusing, but if
you keep it in the upper half of the band (3.5k to 6.5k rpm) it sure
makes driving more fun. I truly believe Mazda had this in mind, and
made a 200k+ car to do it.

Have FUN!

Ephar Smith
ep...@nospam.bellsouth.net

BTW Anybody have RPM vs. Torque charts for the 1.6 stock?

[Leon van Dommelen]

Steve <swe...@home.com> wrote:

> When my 93 Miata reaches 3700 to 4000 RPM's it really starts to
>pick up power. My question is : Do all the 1.6's Power band start
>when reaching 3700 to 4000 RPM's or is my car lacking power in the
>lower RPM range? Can I do something to get more bottom end power?
>I have a K & N air filter and the timing isn't up to 14 deg.
> Thanks in advance , Steve

Try increasing the timing (up to 18 degrees with higher octane gas.)
AFAIK, this should increase low end power at the expense of some
reduction in the top end. But the sensation of speed might be
better with less low rpm power. Try not to drive below 4000 rpm
except in first. :)

Leon
--
Leon van Dommelen, the man, and Bozo, the '96 white PEP Sebring Miata
REMOVE THE Z -> domm...@zmiata.net http://www.eng.fsu.edu/~dommelen

"What? You do not need a reason to drive, you need a Miata to drive."

[Jim Carr]

In article <36C1D8A3...@home.com>

Steve <swe...@home.com> writes:
>
> When my 93 Miata reaches 3700 to 4000 RPM's it really starts to
>pick up power. My question is : Do all the 1.6's Power band start

>when reaching 3700 to 4000 RPM's ...

Yes. That is when they start getting 'on the cam'.

More precisely, what you are noticing is an increase in torque,
as the torque increases up to 4000, then levels off, and then
drops after the power peak at 6500 or so.

Power is equal to torque*rpm, and increases linearly with revs if
torque is constant. When torque is increasing, the power grows
faster -- but what you are noticing at 4000+ is a bigger kick
when you put the pedal down because there is more torque.

--
James A. Carr <j...@scri.fsu.edu> | Commercial e-mail is _NOT_
http://www.scri.fsu.edu/~jac/ | desired to this or any address
Supercomputer Computations Res. Inst. | that resolves to my account
Florida State, Tallahassee FL 32306 | for any reason at any time.

[Pedro A. Vera-Perez]

My old 91 used to scream after crossing 4000. It sounds like a race car :-)

--
Pedro & Esmeralda
http://www.geocities.com/~veraperezp

Jim Carr wrote in message <7a0686$o9h$1...@news.fsu.edu>...