Paul
You would have to put the BOV onto the section of tubing from the turbo to
the inlet manifold, as its the only section thats pressurised, but because
this carries a fuel/air mix you can't vent it to atmosphere, it'd have to go
back into the same inlet tract. You can buy recirculating BOV's from
Turbosmart (TYPE III Plumback)for $360rrp or get an OE one from somebody who
wanted the ppssshhh.
- Tom
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Paul W. J.
Stanley
Sent: Tuesday, 20 February 2001 9:31 PM
To: [EMAIL PROTECTED]
Subject: Re: Suck thru vs Blow thru turbos
How would the BOV work exactly on a suck through? How would you recirculate
it?
----- Original Message -----
From: Julian <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, February 20, 2001 12:50 PM
Subject: Re: Suck thru vs Blow thru turbos
> I heard somewhere, i think here or the E15 list, that the A series gearbox
> bellhousing lines up with the E15 only a couple of holes need elongating
to fit.
>
> I figure its worth a try to see what can be done as i have the parts lying
around..
>
> By Pssshh you are talking BOV? You could still run a BOV in suck thru
only it would
> HAVE to be recirculating, so yeh, no Pssshh, but its an tight budget
conversion so
> no $$$ trust or turbosmart or whatever BOV anyway..
>
> [EMAIL PROTECTED] wrote:
>
> > But the E15ET is E-W? For the 120Y you need a N-S motor?
> >
> > Tom pretty much explained it. Another advantage of blow through is
PSsshhhhh!
> > though I am not installing one just yet. If you have any more questions
about
> > blow through I *should* be able to answer them! :)
> >
> > Blow through is much more expensive, but I'm hoping it has good
advantages over
> > suck through. I've only ever seen one blow through L-series 1600 however
I've
> > seen probably over 10 suck through L series 1600. I think your choice
comes
> > down to the cost/difficulty. In my case I was lucky to pick up the blow
through
> > kit.
> >
> > zac
> >
> > > Blow thru, thats the word i was looking for :)
> > >
> > > Yeh EFI, would be nice but this is for a A12 motor and spending as
little $$$
> > as
> > > possible is the idea.. I have put off installing a turbo on my Astra
(N12 E15
> > > engine) for exactly that reason, because im trying to nut out
programming an
> > > engine mgmt system for the E15ET manifold I have..
> > >
> > > Still considering a 120y with E15ET engine, that should be an
interesting
> > > project..
> > >
> > > - Julian
> > >
> > > Tom Richardson wrote:
> > >
> > > > Julian,
> > > >
> > > > One word: Intercooling
> > > >
> > > > With a blow through turbo (like zac's setup) you can cool the air
charge
> > > > before it mixes with fuel in the carby, with a suck through setup
(like
> > > > paddy's setup) you would have to cool a fuel/air charge- not a great
idea!
> > > > There are plenty of suck through turbo cars around though so they
obviously
> > > > work, one advantage is that you get a nicely mixed fuel/air charge I
> > > > suppose.
> > > >
> > > > But yea, suck through turbo's are much easier to do, because you
just treat
> > > > the carby(s) like on a thirsty N/A motor. No pressurised fuel
bowls, no
> > > > high pressure fuel (you need boost pressure + ~5psi available for
blow
> > > > through) so you can use the standard pump and lines.
> > > >
> > > > Then again, intercooling may not be such a big draw card if you only
want to
> > > > run low boost and don't have problems with detonation. As always,
depends
> > > > on how much power you're chasing
> > > >
> > > > - Tom
> > > >
> > > > PS, Remember (to quote Bill Kenyon from the Bluebirds list) that
there are
> > > > two kinds of 510's, those that have EFI, and those that need it :)
> > > >
> > > > ----- Original Message -----
> > > > From: "Julian" <[EMAIL PROTECTED]>
> > > > To: "OZDAT" <[EMAIL PROTECTED]>
> > > > Sent: Monday, February 19, 2001 11:22 AM
> > > > Subject: Suck thru vs Draw thru turbos
> > > >
> > > > > I was wondering about the advantages and disavantages of running
these
> > > > > different types of setup.
> > > > >
> > > > > Firstly i understand a suck thru setup is similar to Paddy's L16
where
> > > > > the carb is before the turbo. Draw thru is after the turbo?
right?
> > > > >
> > > > > Anyway as i can see suck thru is easier to setup, you could use
existing
> > > > > fuel regulators and pumps (as long as they supply the greater
demand for
> > > > > fuel). The thing im curious with is running fuel through the hot
> > > > > turbo. I take it this is ok because obviously its been done
before and
> > > > > proved to work but i still sceptical
> > > > >
> > > > > With Draw thru you might not be able to use the existing carby,
and if
> > > > > you can it raises some sealing problems with the higher pressure
fuel
> > > > > you need to run to overcome the boost pressure. This also needs a
high
> > > > > pressure fuel pump and rising regulator plus a surge tank.
> > > > >
> > > > > As i see it suck thru is heaps easier and cheaper... so what is
the
> > > > > disadvantage im not seeing??
> > > > >
> > > > > thanks
> > > > > - Julian
> > > > >
> > > >
> > >
> > >
>
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