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Discussion Starter · #1 ·
how canu get more power in the moutans i see to lose power when i go to
reno nv from sac cal wht can one do or whts wrong here i thought the emc
should adjust for moutains??

BAIN15
 
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Discussion Starter · #2 ·
On Mon, 21 Nov 2005 19:08:52 -0800, [email protected] (dan baker)
wrote:

>how canu get more power in the moutans i see to lose power when i go to
>reno nv from sac cal wht can one do or whts wrong here i thought the emc
>should adjust for moutains??


Cleaned up for the spelling and punctuation impaired...

>How can you get more power in the moutains? I seem to lose power when
>I go to Reno NV from Sacramento CA. What can one do or whats wrong
>here? I thought the EMC should adjust for mountains??


The Engine Management Computer can adjust the fuel quantity, and the
ignition timing, and several other parameters so the engine runs at
it's best. Unfortunately, it can't adjust the altitude, it can only
sense it and adapt the engine to work properly at the altitude you're
at.

To get lots of reliable power from a Gasoline or Diesel engine at
higher altitudes requires forced intake induction - either a
turbocharger or a supercharger. Either one will work, all it does is
pump in more air so the engine is effectively running at a lower
altitude. Much lower, like several hundred feet below sea level. So
low that the computer might run out of fuel management 'map' data, so
you may have to modify the computer program with a chip, or add an
enrichment injector that kicks in when the manifold pressure boost
does.

There are advantages and drawbacks to both types of blower systems
that would take pages to explain. Search around - Toyota Racing
Development has sold both kinds of kits engineered for various cars,
and there are aftermarket companies like Paxton. And if you are
starting out from Sacramento CA, you should be very sure that the
system you choose has a proper CARB Exemption Number and comes with
the proper paperwork, so you can get your car passed by the smog check
inspector and registered again after the modifications.

This can be a DIY job that is complex but fairly straightforward
/IF/ you buy a pre-engineered system kit and follow the instructions
to the letter. Otherwise it can be a very expensive learning curve -
as in, you'll most likely blow up a few expensive engines (for real)
before you figure it all out on your own. The setup doesn't have to
be off by much at all, and you'll start melting holes in pistons or
sending others out through the bottom of the crankcase or out the side
of the block...

And if you add a supercharger to the engine don't forget that the
cooling system has to be up to the task also - you're producing big
sea-level power now, and the radiator has to be able to get rid of all
that excess heat into the thinner air you're really driving through.

--<< Bruce >>--

--
Bruce L. Bergman, Woodland Hills (Los Angeles) CA - Desktop
Electrician for Westend Electric - CA726700
5737 Kanan Rd. #359, Agoura CA 91301 (818) 889-9545
Spamtrapped address: Remove the python and the invalid, and use a net.
 
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Discussion Starter · #3 ·
On Tue, 22 Nov 2005 16:51:02 GMT, Bruce L. Bergman
<[email protected]> found these unused words floating about:

>On Mon, 21 Nov 2005 19:08:52 -0800, [email protected] (dan baker)
>wrote:
>
>>how canu get more power in the moutans i see to lose power when i go to
>>reno nv from sac cal wht can one do or whts wrong here i thought the emc
>>should adjust for moutains??

>
> Cleaned up for the spelling and punctuation impaired...
>
>>How can you get more power in the moutains? I seem to lose power when
>>I go to Reno NV from Sacramento CA. What can one do or whats wrong
>>here? I thought the EMC should adjust for mountains??

>
> The Engine Management Computer can adjust the fuel quantity, and the
>ignition timing, and several other parameters so the engine runs at
>it's best. Unfortunately, it can't adjust the altitude, it can only
>sense it and adapt the engine to work properly at the altitude you're
>at.
>
> To get lots of reliable power from a Gasoline or Diesel engine at
>higher altitudes requires forced intake induction - either a
>turbocharger or a supercharger. Either one will work, all it does is
>pump in more air so the engine is effectively running at a lower
>altitude. Much lower, like several hundred feet below sea level. So
>low that the computer might run out of fuel management 'map' data, so
>you may have to modify the computer program with a chip, or add an
>enrichment injector that kicks in when the manifold pressure boost
>does.
>
> There are advantages and drawbacks to both types of blower systems
>that would take pages to explain. Search around - Toyota Racing
>Development has sold both kinds of kits engineered for various cars,
>and there are aftermarket companies like Paxton. And if you are
>starting out from Sacramento CA, you should be very sure that the
>system you choose has a proper CARB Exemption Number and comes with
>the proper paperwork, so you can get your car passed by the smog check
>inspector and registered again after the modifications.
>
> This can be a DIY job that is complex but fairly straightforward
>/IF/ you buy a pre-engineered system kit and follow the instructions
>to the letter. Otherwise it can be a very expensive learning curve -
>as in, you'll most likely blow up a few expensive engines (for real)
>before you figure it all out on your own. The setup doesn't have to
>be off by much at all, and you'll start melting holes in pistons or
>sending others out through the bottom of the crankcase or out the side
>of the block...
>
> And if you add a supercharger to the engine don't forget that the
>cooling system has to be up to the task also - you're producing big
>sea-level power now, and the radiator has to be able to get rid of all
>that excess heat into the thinner air you're really driving through.
>
> --<< Bruce >>--


I've -never- lost power when going from sea level to Reno or even Tonopah!

Only time I felt less power was when I'd pretty much filled the air filter
fro a run through Saline Valley.

Perhaps the impairment includes lack of maintenance checking?
 
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Discussion Starter · #4 ·
On Tue, 22 Nov 2005 19:07:17 GMT, "SBC User" <[email protected]> found
these unused words floating about:

>When I had a 1990 sr5 xcab 4wd 3.0 v-6 auto, I was told to leave overdrive
>off. I can't stay in high gear Las Vegas to Los Angeles. Oh, and it's
>better with the 3.4 v-6.
>
>Now I have a 2004 sr5 xcab 4wd 3.4 v-6 auto. Crusing way over legal speeds
>LA to Las Vegas, I still need to stay out of overdrive. I doubt a stick
>shift would help much, but at least the manual shift wouldnt hunt in and
>out of overdrive at each little incline like the automatic.
>

Got a problem then ...

I run 1200 miles from Astoria OR to LV ... hills to 7,000 -in- overdrive.
Not a problem with 'hunting' .... well that's unless you're trying to use
the abysmal excuse for a 'cruise control' anywhere but on the failry level
sections.

2002 V-6, DC TRD with loaded shell.

Hell, even Penske's RENTAL TRUCKS have a better CC than toyblota.
 
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Discussion Starter · #5 ·
You got me on the cruise, at least part of the time. Pushing it a bit fast
too. I was 85 or so 2700 rpm overdrive, speed drops amd 3400 rpm overdrive
off. Seems there should be some sort of gearing that would allow 3000 rpm.
Sometimes I wish I got the manual over the automatic, but I'm not trading up
of such a little complaint. If anything would get me, I might trade to get
a Limited. I miss the factory sunroof from the 1990.

"J. A. Mc." <[email protected]> wrote in message
news:[email protected]
> I run 1200 miles from Astoria OR to LV ... hills to 7,000 -in- overdrive.
> Not a problem with 'hunting' .... well that's unless you're trying to use
> the abysmal excuse for a 'cruise control' anywhere but on the failry level
> sections.
>
> 2002 V-6, DC TRD with loaded shell.
>
> Hell, even Penske's RENTAL TRUCKS have a better CC than toyblota.
>
 
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