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cross-flow vs g60
The TD manifold does look very restrictive, but remember that on the
throttled gas engine you're pumping very little air at part throttle
(compared to the unthrottled diesel, which always wants the maximum air
possible.) The restrictive exhaust mainfold will not necessarily hurt
part throttle performance, but it will significantly increase exhaust gas
velocity as it hits the turbo, which will help the turbo spool faster.
Exhaust after the turbo should be unrestricted, which is where the stock
A1 and A2 TD's fall short - a custom downpipe is a must for any kind of
performance.
The TD mainfold is not likely to unleash the maximum potential of a
turbo'd 8V, but I'm thinking that you'll still exceed the performance of a
stock JH with any other bolt-ons you could throw at it (excluding a
supercharger, of course.)
I would never dream of building a serious turbo project on TD parts.
However, if I had all the parts (just need an x-flow head) and the time
(yeah right) I'd seriously consider throwing togteher a cheap-ass JH turbo
just for the hell of it.
Drew
On Thu, 30 Oct 2003, Dave Ewing wrote:
> Hey, I got an 8v turbo diesel manifold!! It's going on my TD though! It
> looks to me to be quite the restricted setup and when comparing diesel to
> gas, especially turbo, they are apples and oranges. Knowing what I know now
> (building my TD) I wouldn't use anything off of a diesel for a gas turbo
> motor.
>
> Dave
>
> -----Original Message-----
> From: scirocco-l-bounces@scirocco.org
> [mailto:scirocco-l-bounces@scirocco.org]On Behalf Of 16volt
> Sent: Thursday, October 30, 2003 8:58 PM
> To: 'Drew MacPherson'
> Cc: scirocco-l@scirocco.org
> Subject: RE: cross-flow vs g60
>
>
> Well you can buy or have made a turbo manifold for a 16V for less than
> or the same as what it would cost you find a somewhat rare 8V Turbo
> diesel manifold.
>
> Time is money and if you want to dredge through junkyards and ebay so be
> it.
>
> Shannon
> www.scirocco16v.com
> Schrick 276's...its a good thing.
>
>
>
>
> -----Original Message-----
> From: Drew MacPherson [mailto:drew@scirocco.cs.uoguelph.ca]
> Sent: Thursday, October 30, 2003 8:08 PM
> To: 16volt
> Cc: scirocco-l@scirocco.org
> Subject: RE: cross-flow vs g60
>
>
> I can't speak for everyone else, but personally I'd go the 8V route
> simply
> because you can't bolt a turbo diesel exhaust manifold to a 16V head,
> and
> I'm "keep it under budget" Drew.
>
> YMMV, but mine's pretty consistently 55mpg imp... :)
>
> Drew
>
> On Thu, 30 Oct 2003, 16volt wrote:
>
> > Considering there isn't a single swinging dick on the Kotex that isn't
> > doing a crossflow turbo I think you will be in "good" company. There
> are
> > more than a couple companies out there making "kits" for the xflo.
> >
> > My question is why do you want hobble yourself with an 8V?
> >
> > Shannon
> > www.scirocco16v.com
> > Schrick 276's...its a good thing.
> >
> >
> >
> >
> > -----Original Message-----
> > From: scirocco-l-bounces@scirocco.org
> > [mailto:scirocco-l-bounces@scirocco.org] On Behalf Of Drew MacPherson
> > Sent: Thursday, October 30, 2003 5:16 PM
> > To: Dan Smith
> > Cc: scirocco-l@scirocco.org
> > Subject: Re: cross-flow vs g60
> >
> >
> > A cross-flow is consider a nice head for a turbo because the intake is
> > on
> > the front of the motor (like a 16V) which a) keeps the intake air
> > cooler,
> > and b) keeps the intake manifold the hell out of the way of the
> exhaust
> > manifold/turbo and associated plumbing.
> >
> > The x-flow is a great head for those who are doing "cheap-ass" turbo
> > swaps
> > using turbo-diesel manifolds, because the TD manifold can be used
> > without
> > modification when the intake is on the front of the engine.
> >
> > I've consider a cheap-ass turbo swap (as I have no shortage of the
> tubro
> >
> > bits) but I lack the x-flow head. Oh well, some day.
> >
> > Drew
> >
> >
> > On Thu, 30 Oct 2003, Dan Smith wrote:
> >
> > > Saltyweasel has mentioned that a cross flow head may be a better way
> > to go for my turbo motor than a g60 head. However, he failed to
> > elaborate. Stock head vs stock head, is the x-flow better for boost?
> > >
> > > Dan
> > >
> > >
> > > ---------------------------------
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> > >
> >
> >
>
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