So, I've got here is our Corsa E VXR top mount Turbo kit.
So there's quite a lot of components to make up this one kit a lot of
the time when you want a Garrett turbo or Borg Warner turbo whatever
people tend to look at you know I need to get a manifold probably need
some oil lines forget about all of the other parts that are involved
in putting a kit like this together.
So that it actually just bolts on without any modifications which is
what this kit is.
Money recently felt this way we wanted it to work with the GFR range
listen to the most popular at the time and the range of those really
suited the 1.6 engine since then.
I would have been more kind of Turbo developments and now I've had a
far better suited.
Turbo is the Garrett range to the g35 and g37 customer in Italy that
wanted a g25.
Initially given that these kits are quite low volume without make too
many of them.
It was more of a a one-off thing that we would do but having done it.
We had two more or less make a whole new kit so once you go to all the
effort to make a whole new kit you may as well because the chances are
of people that one as well.
Obviously underneath here.
We've got the the manifold.
What will break this down start off with it fully assembled and keep
removing bit until we've got nothing left.
So basically got the 347 stainless steel 44mm primary with the
Headland cash collector all the kind of standard things that we would
normally use on and then we got the T25 top mounted so the the main
advantage we going top mounted on the Corsa e y wanted to do.
And yes, I didn't do it with the cost a day.
The current house, set up is slightly different on the course.
He is a slightly different header tank in a slightly different
position and the radiator packs all different so we kind of realised
that the turbo top mounted we can take the air-con with no
modifications and we can keep the standard radiator radiator fan fan
Shroud and the standard nearside call without any changes to it's not
trying to create a kit where you kind of need the least amount of
parts for OE parts you can use the more reliable.
It'll be
What are using a turbo Smart 40 minutes away skate?
There's no need for a 45 mm gate on these kits are the actual physical
size of the wastegate is no bigger 45 other than just a bit too much
wastegate.
I don't think anybody will really need the kind of the extra size of a
45 mm gate.
It's not one of those things where the biggest wastegate.
You've got the more power.
You'll get it doesn't work like that.
We might do a video in the future on can a wastegate sizing and why
it's important.
Everybody's got their preferences.
Tuners will say you know what they're more comfortable working with
but this get does use a 40-minute again because that's basically all
you need and what I got full 3 inch downpipe.
Trying to keep the fences.
A sweater as possible normally we would have really tight bend out of
the turbo that we do on our bottom Mount Corsa D kit and while that's
ok the bigger the bend is the kind of longer sleeping band the better.
It's going to be for turbine efficiency you want to get that gas out
quickly as you can so the longer the sweeping bend the better through
the the least amount of bends the kind of easier.
You're making the job of the turbine to get the gas out one thing that
turbos definitely don't like is back pressure.
That's a bit of an internet and with that comes and all the time the
turbos need back pressure.
They don't plenty of people say it but it just seems to be one of
those kind of Facebook for and things were people say turbos need back
pressure selling you want the least amount of the best exhaust for a
turbo car is no exhaust on a drag car a big turbo drag car in a
thousands of horsepower.
I have very big very short exhaust easily come straight under bonnet
because that is what's best for power.
We got recirculated wastegate back into the downpipe.
We can do it with the screen as well 10 to rather not fit with a
screamer purely because
With a sports car and recirculate way to get this is fully road legal
kit its MOT able there's no no problems with it being illegal or
anything like that and it's going to be pipes with sound like a fun
idea after a while we do start the great on you because you can't turn
it off once you've got it.
You've got it.
So got stainless steel coolant lines again one thing we wanted one
thing I really conscious always trying to keep everything as reliable
as possible so we got stainless steel coolant lines hard pipe.
So there's a small Silicone Hose in the kit which takes you up to the
engine block and then with this house hear that go straight up to the
trail which runs underneath manifold here so again very few joints.
We've got kind of loot long loose rubber hoses flapping about in the
engine bay.
Everything is nice and tidy and tight.
No chance that you know these things can kind of get melted or we
don't need to run loads of can a heat sleeving on anything stainless
steel.
It's built to last we not have any problems with it same with the
turbo oil feed what we've got is the original fitting and we basically
adapt it with a new stainless steel online now the advantage of doing.
This is what you would normally get in the in kind of traditional
Vauxhall Corsa VXR kits you normally take that oil pump housing off
and then tap it to take a 1/8 npt thread the
The difficulty with that is you got to take it off you've got a tap it
you know you can do you add in a lot of extra work in here to do that
ours is just a slot in Twister interlock and that's it if it's just
like you can remove it.
Just like yeah, we can put the original turbo back on when no one of
occasions drilling or tapping anything like that.
We got an oil return extension again this bolts up to the Standard Oil
return no need to modify it it just bolt straight in with the gasket
between very easily reversible because this is the one from the
original prototype out of The Jig basically so one of the main
differences between this kits and the kit for VFR is on x turbo
recirculation valve super simple pipework really sure that means it's
going to be really efficient efficiency makes everything better.
So got to go smart 25 in a metre recirculation valve.
So, what sort of body closed this file can't open it up and redirect
air compressor air back out back into the turbo and keep the turbo
spinning basically.
That's the idea of recirculation valve pushchair that with compressed
if the throttle body and is closed there can divert back out back into
the intake pipe can be drawn back into the turbo.
Keep the turbo spinning so often sometimes people decide not to fit a
recirculation valve and that's why they tend to get a lot more of that
kind of Turbo chatter and it's because the compressor wheel stolen and
I know you doing really she's slow in the compressor wheel down again.
We use turbine efficiency to speed the compressor wheel up and then if
you kind of thought it to slow down or stop because it can't push
anymore are down if the throttle body.
Just throwing it down.
So it's always better than a recirculation valve in my opinion some
people choose not to because they like that.
turbo noise
Alan bell mouth and a run a program filter to these efforts is a
really nice.
I'm out there again increases the kind of the speed as it travels down
the intake pipe.
Not necessarily something that's going to gain you any performance as
such but these Maps are really sensitive.
So you got really short intake pipe because of you know the actual
constraint to fit a turbo at the top.
We need to make sure that we get that air flowing as smoothly as
possible comes into the intake pipe before it's that that MAF sensor
so that's one of the main reasons.
Why have I got a bell mouth on here not required on kind of most of
the garage kits we do for other cars that the Astra Astra H VXR for
example the on the it does help quite a lot.
We learnt that with the stage 2 induction kit for the stock frame
turbo.
That that really does make a big difference so it's a get full set
boost pipes in the kit.
This is a direct fit for an air tech intercooler pretty much now,
which I used to use to make it Direct fit for the Air Tech intercooler
because nobody is going to be running a stock intercooler and there
are very few intercooler kits on the Corsa VXR now.
We've always sold out in schools news articles on the project on
projects in the past the original felt like I had now taken to call
her on it most the tune as we work with use a second so you know it
made sense to do it for that it could still be adapted for others but
yeah, it comes as a direct fit for for a stage 2 stage 3 one last
thing is this Spotify coolant hose so The OC coolant hose that fits
here.
Would pretty much get in the way of the manifold and turbo so the this
is what the stock coolant hose looks like the shape of that you can
see it's not really going to be the best fit for the time.
I've got a boost pipe in there so the best thing to do was actually to
get another one made from a piece of Tooling and then just make us the
hose that goes on that piece of calling and that is only just a direct
replacement for that coolant hose, so if you've got if you want one of
these kits are included.
And then if you want to call then hose kit as well.
We can do it as a full 4 piece kit with the Quorn hotel the other side
at the same time obviously that also includes the houses.
The header tank as well.