Hi Andew i wish we could get a list of Nissan turbo;s so we could all find
out what we had i am still trying to find the origin of a nissan turbo .89
ex housing and 17V3 cast on the compressor housing
-----Original Message-----
From: andrew smith <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
Date: Wednesday, January 31, 2001 2:27 AM
Subject: Re: FJ20DET ex manifold
>Errol,
>I have no idea what its off.Sure its a 0.8 or is it 0.82 A/R.
>Andrew Smith
>
>Errol Smith wrote:
>
>> Andrew/List?
>> I have an unusual turbo here I purchased on the weekend. It is a T3 water
>> cooled with very large 5/8" ID water inlet & outlet. The turbine housing
is
>> a 0.8 A/R (I assume) with a large wastegate cover with six retaining
bolts.
>> The dump pipe has an O2 sensor fitting hole and the shape looks rather
like
>> and over sized FJ dump pipe. The exhaust housing has F59S cast into it?
>>
>> The comp housing is a Nissan and the comp wheel is a dual start approx
the
>> same size as a stock Z18ET.
>> Any ideas at all any one
>>
>> Cheers
>> Feral Errol
>> mailto:[EMAIL PROTECTED]
>> http://www.datrats.com.au/
>>
>> -----Original Message-----
>> From: [EMAIL PROTECTED]
>> [mailto:[EMAIL PROTECTED]]On Behalf Of andrew smith
>> Sent: Wednesday, January 31, 2001 1:14 PM
>> To: [EMAIL PROTECTED]
>> Subject: Re: FJ20DET ex manifold
>>
>> Eddie,
>> Those Cossie style wastegates certainly simplify the exhaust side of
>> things.The
>> 303-61-L turbine wheel is larger in both major and exducer dia than the
>> standard
>> wheel and is of a better design which allows more gases to be passed thru
>> housing and reduce back pressure when larger compressors are used.These
>> wheels
>> also have the ability to work over a wider range.There is larger T3
turbine
>> wheels available and a good turbo tech man should be able to advise of at
>> what
>> point a larger wheel is needed to match comp size and engine
size.Standard
>> turbine wheels can be back cut to around 7 deg when larger compressors
are
>> used
>> as this also reduces back pressure but this is not considered good
practice,
>> although I've just done it to mine as it's cheap ($150 including
balancing
>> verses $600 for a new -61).I've used this with a T4 -25 (V trim) comp
wheel
>> and
>> housing ($100 used).Should be good for 300-350HP.This is old technology
and
>> I've
>> only done it this way because of budget.If I had the money I'd use a 60-1
>> comp
>> wheel with suitable turbine wheel.
>> Andrew Smith
>>
>> [EMAIL PROTECTED] wrote:
>>
>> > Andrew,
>> > Luckily I found a local turbo specialist that's run by an Aussie! He
knows
>> > FJ's and 1600's (nobody else here has heard of either) and he's built
an
>> FJ
>> > to 500hp+ in a Mazda for drag racing before (in Aus not here...think it
>> was
>> > a series 2 RX7). I'm going with a modified T3 from an Escort Cosworth
with
>> > an integral wastegate (wastegate is in the housing rather than the dump
>> > pipe) and a 360 deg bearing. I'll get the exact specs off him and post
>> > them. I said I wanted a capability for 300-350hp (@ flywheel) although
I'm
>> > not likely to run that much on the street right away, but I want the
>> > potential there for the future without needing a different turbo and
>> > therefor possibly a different exhaust.
>> > The built in wastegate on the Cossie turbo simplifies the exhaust a bit
as
>> > the system will now be fabricated right up to the turbo housing so the
>> idle
>> > clearance is no longer a problem.
>> > I'll ask when I go back there about _61 turbine wheels. I'd imagine
they
>> use
>> > them. What's the difference?
>> >
>> > Eddie
>> > England
>> > 1969 510 4door
>> > [EMAIL PROTECTED]
>> > www.ratdat.com
>> >
>> > ----- Original Message -----
>> > From: andrew smith <[EMAIL PROTECTED]>
>> > To: <[EMAIL PROTECTED]>
>> > Sent: Tuesday, January 30, 2001 2:37 AM
>> > Subject: Re: FJ20DET ex manifold
>> >
>> > > Eddie,
>> > > What turbo are you using, still the T3? How did you go with that
idler
>> > clearance
>> > > problem? Hope you had the turbo high flowed.Having another manifold
made
>> > can be
>> > > quite expensive and making it yourself can be time consuming.A lot
would
>> > depend
>> > > on what HP you turbo is rated at or if you intend to go bigger later
>> > although I
>> > > think the standard manifold is capable of flowing enough for at least
>> > 400HP.Any
>> > > more HP than this I would be looking at an external waste gate type
set
>> up
>> > and
>> > > therefore another manifold.The standard manifold will keep air speed
>> high
>> > and
>> > > combine with the high exhaust pulses the FJ20's produce allow for
quick
>> > spool
>> > > up.A larger dia manifold is usually used when ultimate HP is being
>> chased
>> > or if
>> > > the standard one is to small or if you change to different bolt
>> pattern.I
>> > ran a
>> > > TB34 400HP unit on an FJ20 with no back pressure problems at
all.Theses
>> > units
>> > > were designed by Nissan for there domestic racing where no external
>> waste
>> > gates
>> > > were allowed and standard manifolds retained. These turbos featured a
>> > turbine
>> > > housing with a larger nozzle area and a -61 turbine wheel. These are
>> only
>> > my
>> > > experiences anyway maybe some others have had problems with the
standard
>> > > manifold.While you were getting your turbo done did you come across
any
>> > > workshops with any used -61 turbine wheels as I think thats what they
>> used
>> > in
>> > > the RS500 Cossies.
>> > > Andrew Smith
>> > >
>> > > [EMAIL PROTECTED] wrote:
>> > >
>> > > > I'm wondering what the limitations are in respect to power
potential
>> > using
>> > > > the stock exhaust manifold on my FJ turbo( It's a Gazelle RS-X
>> > manifold). Is
>> > > > it worth me getting an aftermarket one now? The reason I ask is
>> because
>> > I
>> > > > get my new turbo this week and them it will be time to get the
exhaust
>> > > > system fabricated. I don't want to have to have it done twice if I
>> find
>> > I
>> > > > need a better manifold in the future. I'd rather just spend the
money
>> > now
>> > > > and do it right. Any idea, anyone?
>> > > >
>> > > > Cheers,
>> > > > Eddie
>> > > > England
>> > > > 1969 510 4door
>> > > > [EMAIL PROTECTED]
>> > > > www.ratdat.com
>> > > >
>> > >
>> > >
>> >
>>
>
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