turbo modification

[mike]

Alan...You can be sure that a turbo designed for the
gas flow from a 1275cc engine wouldn't last 5 mins
with 2144cc worth blowing through it. In fact given
that you are pushing twice the flow through it i be
surprised if it lasted that long. Think fragmentation
grenade.

Bite the bullet and drive to peterborough mate

Kind regards 

Mike

--- alan pritchard
> <alanthecelt at alanthecelt.screaming.net> wrote: > I
> found a turbo in the scrapyard today, seems in
> > good condition,  it has an integral wastegate and
> it
> > is a garret.  it came off of a mg metro turbo
> > (1275cc)  so im hoping it will be the basis for my
> > lightly blown coupe gt(t).
> > 
> > I have a few questions though, obviously this
> turbo
> > assembly is designed to produce approx 5-7 psi at
> > peak revs ,  i guess 4500 ish from a 1275 cc
> engine.
> >  Obviously this turbo will spin up quicker as my
> > engine is 2144cc, and the wastgate will also open
> > earlier, so what effect will running the turbo
> with
> > the wastegate open from lower revs have?  will it
> be
> > possible to run the turbo too fast and cause
> damage?
> >  also the cfm for the turbo will be much lower
> than
> > an equivalent factory fitted turbo, therefore i
> will
> > have lower boost, but will this cause the engine
> to
> > suffocate???
> > hopefully with this amount of low boost i will not
> > require an intercooler, but will have to stop the
> > airbox from inflating/ leaking, fabricate a
> manifold
> > and downpipe adaptor, also do something with the
> > pipe that goes from the manifold to the metering
> > head,  but will my current fuel regulator
> compensate
> > for positive manifold pressure (ke engine , k jet)
> > or would i be best to make a pcb to drive the 6th
> > injector?
> > whats everyones opinion on not doing it the audi
> > way?
> >  
> 
>
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