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Re: TOY: rack and pinion
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Re: TOY: rack and pinion
What you are saying about the power band makes some sense. I wondered how
my Tacoma four could be rated so much higher in HP than previous fours, yet
yield equal or less "seat of the pants" engine power.
All the extra HP is where you can't use it. Just for marketing, I guess.
Surprise !
The funny thing is, you'd think that with EFI, they could optimize the power
curve a lot better.
As far as the rack and pinion, I understand that it's a weak design. I
imagine that your "30,000 miles" life is a guess for serious off-roaders.
But for daily drivers, it's obviously got a lot more than that, no? Or am i
rare with 150K and no probs?
----- Original Message -----
From: <werty@swissinfo.org>
To: <toyota@4x4Wire.com>
Sent: Friday, November 05, 2004 11:25 AM
Subject: RE: TOY: rack and pinion
>
>
> It's like science . There is an explanation to it .
> You know kinda like the stupidity of VW and Harley to
> putting short reach plugs in alum' heads !!! I have
> repaired hundreds of VW's , Spark plug , lower case studs
> etc ..
>
>
> The Toy has much higher "leaverage" against the very weak
> bushings in the rack/pin' .
> The old Toy system ... recirc ball is not taking much
> stress unless you put force to the wheel . The idlers
> can last for years of off roadin'
>
> You don't have to touch the steering wheel to get
> get very high force on the bushings !! Go study it
> like i do .
>
> BTW mine has no return spring on the clutch slave ,
> so i'll be replacing release bearings < every 50K .
> They put a plastic bearing on clutch pedal GOOD !
> But at the rod ( where force is higher !!)
> they have NOTHING but a very high friction steel pin !
> Engineers ? No not really .
>
> Mine will shortly have a ball bearing .
>
> The good on Toy' is they do compete with the better trucks .
> But they are cronies , so don't expect better , jsut same old
> stuff .
> 4X4 ppl have been de manding engines that make power down low
> for off roading , but Toyb gives us high rated H.P. instead
> ( peaky hp at high RPM ) .
>
> But i'll be grinding my cam in my back yard soon and will
> have a low speed 3RZ-FE ( 2700 ) . Kids don't do this at home
> 'cause it's dangerous , just kidding , don't do it on anything
> but a shim over bucket as it's cake to figure the lift at each
> point and how to grind it for there are no other factors !
> All you do is figure where to place the grind wheel relative
> to base circle ! Ya don't have to figure the effect of valve gear !
> I'll reduce overlap , advance intake closing by 15 degrees
> and adv exh open by even more . Tune intake and exh headers
> for about 3200 RPM . I expect :
> 50 HP @ 1600
> 70 " " 2200
>
> But mostly i expect better effeciency !!
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> >-- Original Message --
> >From: "Steve L" <seaweedsteve@newmexico.com>
> >To: <toyota@4x4Wire.com>
> >Subject: TOY: rack and pinion
> >Date: Thu, 4 Nov 2004 17:55:39 -0700
> >Reply-To: toyota@4x4Wire.com
> >
> >
> >I've been wondering if we lost reliability with the R&P. But 30K?
> >
> >How did you come to that conclusion? Certainly not in the service
schedule?
> >Mine's got 150K on it. I bet most people are getting that easy. SHOULD
> >last 300K.
> >
> >I know it will be extra spendy/not rebuildable compared to the old style
> >when it is replaced.
> >
> >
> >----- Original Message -----
> >From: <werty@swissinfo.org>
> >To: <toyota@4x4Wire.com>
> >Sent: Thursday, November 04, 2004 1:19 PM
> >Subject: RE: TOY: Problems ( fuel pump relay)
> >
> >
> >>
> >>
> >> Have 2000 Toy 4X4 , i have 2 relays in series ( fuel pump and circuit
> >>
> >> operating relay ) either will ruin your whole day if open .
> >>
> >> Hope this helps .
> >>
> >>
> >> BTW the rack/pinion steering cyl on 2000 ( '96 up ?) will need
> >>
> >> replacing every 30k miles.
> >>
> >> Toyota didn't figure how much stress there is on it ! The older
steering
> >>
> >> gear is far stronger .
> >>
> >>
> >>
> >> >-- Original Message --
> >> >From: "greg fowkes" <fowkesgreg@hotmail.com>
> >> >To: toyota@4x4Wire.com
> >> >Subject: RE: TOY: Problems
> >> >Date: Thu, 04 Nov 2004 14:08:49 -0500
> >> >Reply-To: toyota@4x4Wire.com
> >> >
> >> >
> >> >Hey Ray,
> >> >
> >> >Not sure how my email address showed up for a place to write to on
> >4x4Wire.
> >> >
> >> >Sorry, can't help you.
> >> >
> >> >Greg
> >> >
> >> >>From: ryan neighbarger <ryan_marine@yahoo.com>
> >> >>Reply-To: toyota@4x4Wire.com
> >> >>To: toyota@4x4Wire.com
> >> >>Subject: TOY: Problems
> >> >>Date: Thu, 4 Nov 2004 10:42:19 -0800 (PST)
> >> >>
> >> >>I completed the swap 88 engine in to a 89 truck. Every
> >> >>thing went fine, no warning lights and it ran well. I
> >> >>decided to drive it around the hunting area still all
> >> >>went well. On the way home it sputterd a couple of
> >> >>times then died. It will start up then die again. I
> >> >>have no power to the fuel pump now. I tempory wired
> >> >>the fuel pump to run while my wife tried to start it.
> >> >>Still started then died right afterwards. The relay
> >> >>under the hood works. Now what should I check for?
> >> >>
> >> >>Thanks
> >> >>
> >> >>Ray
> >> >>
> >> >>=====
> >> >>Pray for peace, Plan for war!
> >> >>
> >> >>__________________________________________________
> >> >>Do You Yahoo!?
> >> >>Tired of spam? Yahoo! Mail has the best spam protection around
> >> >>http://mail.yahoo.com
> >> >>4x4Wire.com Toyota Section http://www.4x4Wire.com/toyota/
> >> >
> >> >_________________________________________________________________
> >> >Don?t just search. Find. Check out the new MSN Search!
> >> >http://search.msn.click-url.com/go/onm00200636ave/direct/01/
> >> >
> >> >4x4Wire.com Toyota Section http://www.4x4Wire.com/toyota/
> >> >
> >>
> >>
> >> _______________________________________________________________________
> >> Dreaming of a Swiss Account? Get it here: http://freemail.swissinfo.org
> >>
> >>
> >>
> >>
> >> 4x4Wire.com Toyota Section http://www.4x4Wire.com/toyota/
> >
> >
> >4x4Wire.com Toyota Section http://www.4x4Wire.com/toyota/
> >
>
>
> _______________________________________________________________________
> Dreaming of a Swiss Account? Get it here: http://freemail.swissinfo.org
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>
>
>
> 4x4Wire.com Toyota Section http://www.4x4Wire.com/toyota/
From owner-toyota@www.4x4wire.com Sat Nov 6 10:53:38 2004
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From: werty@swissinfo.org
Subject: Re: TOY: rack and pinion
To: toyota@4x4Wire.com
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Reply-To: toyota@4x4Wire.com
>From: "Steve L" <seaweedsteve@newmexico.com>
>What you are saying about the power band makes some sense. I wondered
how
>my Tacoma four could be rated so much higher in HP than previous fours,
yet
>yield equal or less "seat of the pants" engine power.
>All the extra HP is where you can't use it. Just for marketing, I guess.
>Surprise !
___________________ reply _____________________
They have no choice but to peak the HP at 150 Tacoma .
The public does not want to educate themselves .
I have to admit the Dodge D50 sport 2600 was an eye opener to me . It
reminded me what i had learned about low speed power .
I let the clutch fly accidently and the tiny Jap P.U. lurched fwd !
This was exactly what i needed to pull my sailboat . It was 25 more
H.P. than any other Jap P.U. at 2200 RPM . And this is true
H.P. ( 2200 RPM ) .
I'll try to grind my own cam in the future as it is easier to calc/figure
for the shim over bucket design . Objective is to get less duration and
maintain orc decrease the "lift". The 4 valves/cyl makes hi
lift to "breathe" , unnecessary . Honda had to close 1 valve at low RPM
for too much breathing !
The valve gear acceleration is what you want to minimize to keep the
H.P. into the valve train LOW .
_____________________ end of reply ____________________________
>As far as the rack and pinion, I understand that it's a weak design. I
>imagine that your "30,000 miles" life is a guess for serious off-roaders.
>But for daily drivers, it's obviously got a lot more than that, no? Or
am
>i rare with 150K and no probs?
____________________ start of reply ______________________________
Yes i think on purpose or by accident , one could drive just so and
get 100k miles . That is a problem . I'd rather redesign it and sleep
well . I've spent many hours , but no elegant solution except putting
the old recirc ball ( but it DON'T FIT ! )
I am compulsive about finding elegant mechanicall design that makes
maint' intervals longer and ergonomics better . I'm working on the stiff
clutch pedal now
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Dreaming of a Swiss Account? Get it here: http://freemail.swissinfo.org
From owner-toyota@www.4x4wire.com Sat Nov 6 12:56:31 2004
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Message-ID: <418D1962.2D70@saber.net>
Date: Sat, 06 Nov 2004 10:35:14 -0800
From: Paul Cherubini <monarch@saber.net>
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To: toyota@4x4Wire.com
Subject: Re: TOY: rack and pinion
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Steve L wrote:
>
> What you are saying about the power band makes some sense. I wondered how
> my Tacoma four could be rated so much higher in HP than previous fours, yet
> yield equal or less "seat of the pants" engine power.
The Tacoma has 4 valves per cylinder which is great for high rpm
power, but bad for low rpm torque. So even though your Tacoma
may feel less peppy around town than your old 20R or 22R car or truck,
it has alot more power when you wind it out on the highway
such as when passing another car or climbing a hill.
> All the extra HP is where you can't use it. Just for marketing, I guess.
> Surprise !
Most of the "boy racer" type mods like K&N air
filters and flowmaster muffers and hi flow cat converters
have the same problem - the power gain can only be felt at really
high rpm.
> But for daily drivers, it's obviously got a lot more than that, no? Or am i
> rare with 150K and no probs?
Agreed. I know a '96 Tacoma owner with over 400,000 miles and no
rack and pinion problems. And two Toyota Previa van owners with over
275,000 miles and no rack and pinion problems
Paul Cherubini
From owner-toyota@www.4x4wire.com Sat Nov 6 15:28:53 2004
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From: werty@swissinfo.org
Subject: Re: TOY: rack and pinion
To: toyota@4x4Wire.com
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Reply-To: toyota@4x4Wire.com
>-- Original Message --
>From: Paul Cherubini <monarch@saber.net>>
>Steve L wrote:
>Most of the "boy racer" type mods like K&N air
>filters and flowmaster muffers and hi flow cat converters
>have the same problem - the power gain can only be felt at really
>high rpm.
------- reply from werty -----------
It's a myth that the exhaust headers are high RPM .
They're poorly designed .
I had to make 3 sets of headers for my old 750 Honda
motorcycle , before i got it right .
It was the diameter ! Too big , no "tune" extraction .
The 3RZ-FE 2700cc needs inside pipe diameters less
than 1.375 " . This is smaller than 99% of all the
after market headers sold !! Advertizing !!
Small pipes look "unnatural" ( too small ) so
you simply can't sell a kid on the proper size .
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