I stand corrected!
Sorry guys
- Tom
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Zac Campbell
Sent: Tuesday, 20 February 2001 10:58 PM
To: [EMAIL PROTECTED]
Subject: Re: Suck thru vs Blow thru turbos
What are you guys on? :) You can't fit a BOV to a suck through even if it is
a recirculating. The throttle body (in this case, carby) is before the
turbo.
I guess you could wire the vacuum hoses backwards.... but...
For starters, fuel could pool in the BOV and explode (the risk of an
intercooler) and also the fuel would reenter the inlet before the carb
(where else would it reenter?) where it isn't metered by the carby, thus the
mix will be rich.
zac
----- Original Message -----
From: Tom Richardson <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, February 20, 2001 9:48 PM
Subject: RE: Suck thru vs Blow thru turbos
> 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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