Why Dyno ?

why the heck do some people get their cars "dynoed"
what good does it do ? what do they do with the result info ?

Robert wrote:
>
> why the heck do some people get their cars "dynoed"
> what good does it do ? what do they do with the result info ?

Bragging rights (Mine's bigger than yours!), objective tests
of modifications to see if improvement is real, etc. And,
don't overlook simple curiousity. I dyno'd my Fiero and
found that I developed 155 ft/lbs of torque at 1,250 RPM,
that's 90% of my peak torque at 3,000 rpm. In fact, my
torque is at or above 90% of peak from 1,250 rpm all the way
out to 4,200 RPM, which makes the car mighty fun to drive.

JazzMan
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"JazzMan"
> Bragging rights (Mine's bigger than yours!), objective tests
> of modifications to see if improvement is real, etc. And,
> don't overlook simple curiousity. I dyno'd my Fiero and
> found that I developed 155 ft/lbs of torque at 1,250 RPM,
> that's 90% of my peak torque at 3,000 rpm. In fact, my
> torque is at or above 90% of peak from 1,250 rpm all the way
> out to 4,200 RPM, which makes the car mighty fun to drive.

so people who dynoed would normally alter their driving habit to take
advantage
of the findings ?

Robert wrote:
>
> "JazzMan"
> > Bragging rights (Mine's bigger than yours!), objective tests
> > of modifications to see if improvement is real, etc. And,
> > don't overlook simple curiousity. I dyno'd my Fiero and
> > found that I developed 155 ft/lbs of torque at 1,250 RPM,
> > that's 90% of my peak torque at 3,000 rpm. In fact, my
> > torque is at or above 90% of peak from 1,250 rpm all the way
> > out to 4,200 RPM, which makes the car mighty fun to drive.
>
> so people who dynoed would normally alter their driving habit to take
> advantage
> of the findings ?

Not neccessarily, though in a racing situation I suppose they
could. Measuring and documenting the power output of one's
motor can be done for as many reasons as there are car owners.
The most common reasons I see are bragging rights and objective
testing for race tuning.

JazzMan
--
************************************************** ********
Please reply to jsavage"at"airmail.net.
Curse those darned bulk e-mailers!
************************************************** ********
"Rats and roaches live by competition under the laws of
supply and demand. It is the privilege of human beings to
live under the laws of justice and mercy." - Wendell Berry
************************************************** ********

In our line of we'd be lost without our engine dyno! We would have no clue
if a new product was better than the previous or would hold up. Our
bussiness is so competitive we MUST KNOW that we are making a good piece,
not guess at it. We torture tested a new block for 3 days, tore it apart to
look at then put it back together for more torture. It held up so we
released the
finished product.
What would happern if we sold you a $5,000 block, you built it and the main
webs failed and all we could say is Hmmmmmm, guess we should have done some
testing.
"Robert" > wrote in message
...
> why the heck do some people get their cars "dynoed"
> what good does it do ? what do they do with the result info ?
>
>

"Al" > wrote in message
link.net...
> In our line of we'd be lost without our engine dyno! We would have no
clue
> if a new product was better than the previous or would hold up. Our
> bussiness is so competitive we MUST KNOW that we are making a good piece,
> not guess at it. We torture tested a new block for 3 days, tore it apart
to
> look at then put it back together for more torture. It held up so we
> released the
> finished product.
> What would happern if we sold you a $5,000 block, you built it and the
main
> webs failed and all we could say is Hmmmmmm, guess we should have done
some
> testing.

you're speaking from the point of engine builder/engineer/car maker, correct
?
I was wondering why some 20-something would take their new car to get dynoed
for like $30 ~ 60.
Jazzman said it's mostly "bragging rights" and I agress.

JazzMan wrote:
> Robert wrote:
>
>>"JazzMan"
>>
>>>Bragging rights (Mine's bigger than yours!), objective tests
>>>of modifications to see if improvement is real, etc. And,
>>>don't overlook simple curiousity. I dyno'd my Fiero and
>>>found that I developed 155 ft/lbs of torque at 1,250 RPM,
>>>that's 90% of my peak torque at 3,000 rpm. In fact, my
>>>torque is at or above 90% of peak from 1,250 rpm all the way
>>>out to 4,200 RPM, which makes the car mighty fun to drive.
>>
>>so people who dynoed would normally alter their driving habit to take
>>advantage
>>of the findings ?
>
>
> Not neccessarily, though in a racing situation I suppose they
> could. Measuring and documenting the power output of one's
> motor can be done for as many reasons as there are car owners.
> The most common reasons I see are bragging rights and objective
> testing for race tuning.
>
> JazzMan

It's also nice for parts swapping - does this new intake make more
power? You've probably seen cars with all sorts of mods (exhaust tips)
and they claim to make 50+ hp increases.... it would sure be nice to
verify that...

I currently use the dragstrip as my dyno, but it would be nice (and
easier) to test changes on a dyno. AFAIK Winnipeg only has one shop
with a dyno and it's $100/hour.

On Mon, 23 Aug 2004 16:19:31 GMT, Ray > wrote:

||JazzMan wrote:
||> Robert wrote:
||>
||>>"JazzMan"
||>>
||>>>Bragging rights (Mine's bigger than yours!), objective tests
||>>>of modifications to see if improvement is real, etc. And,
||>>>don't overlook simple curiousity. I dyno'd my Fiero and
||>>>found that I developed 155 ft/lbs of torque at 1,250 RPM,
||>>>that's 90% of my peak torque at 3,000 rpm. In fact, my
||>>>torque is at or above 90% of peak from 1,250 rpm all the way
||>>>out to 4,200 RPM, which makes the car mighty fun to drive.
||>>
||>>so people who dynoed would normally alter their driving habit to take
||>>advantage
||>>of the findings ?
||>
||>
||> Not neccessarily, though in a racing situation I suppose they
||> could. Measuring and documenting the power output of one's
||> motor can be done for as many reasons as there are car owners.
||> The most common reasons I see are bragging rights and objective
||> testing for race tuning.
||>
||> JazzMan
||
||It's also nice for parts swapping - does this new intake make more
||power? You've probably seen cars with all sorts of mods (exhaust tips)
||and they claim to make 50+ hp increases.... it would sure be nice to
||verify that...
||
||I currently use the dragstrip as my dyno, but it would be nice (and
||easier) to test changes on a dyno. AFAIK Winnipeg only has one shop
||with a dyno and it's $100/hour.

Check out Homedyno.com.
Appears to be technically correct, for very little money.

Texas Parts Guy

Similar deal, you bolt on a buch or parts and want to see if your tune up is
on or off. You may be able to tweak a few more areas and pick up a few "free
HP". I'd love to have a chassis dyno to play with! It's all about
performance.
"Robert" > wrote in message
...
> "Al" > wrote in message
> link.net...
> > In our line of we'd be lost without our engine dyno! We would have no
> clue
> > if a new product was better than the previous or would hold up. Our
> > bussiness is so competitive we MUST KNOW that we are making a good
piece,
> > not guess at it. We torture tested a new block for 3 days, tore it apart
> to
> > look at then put it back together for more torture. It held up so we
> > released the
> > finished product.
> > What would happern if we sold you a $5,000 block, you built it and the
> main
> > webs failed and all we could say is Hmmmmmm, guess we should have done
> some
> > testing.
>
> you're speaking from the point of engine builder/engineer/car maker,
correct
> ?
> I was wondering why some 20-something would take their new car to get
dynoed
> for like $30 ~ 60.
> Jazzman said it's mostly "bragging rights" and I agress.
>
>

In article >, says...

>why the heck do some people get their cars "dynoed"
>what good does it do ? what do they do with the result info ?

You usually do this after you make some engine modifications. That way
you know if the modifications helped, or hurt, your engine performance.
---------------
Alex