legacycentral bbs

I have just inherited a turbo back 3" exhaust from a WRX. Complete
with dual/splitter front pipe (no cat and all HPC'ed), mandrel bent
pipe work and big polished stainless straight through muffler with 4"
tip.
This all sounds really good - but after talking to a few people in
the "know", I am wondering about turbo lag, drop in torque, and
obviously the noise/drone factor.
So I dont know wether its worth the effort to make the install if its
going to cause some issues. Or if I should sell it and get a new
system made from scratch to suite the car.
I thought this system would be great after reading the threads on the
exhaust buy coming up!

Any Ideas?

Stu (nz)
91 legacy, ej20 turbo (jap specs)


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I would say stick with that system, sounds like it will work great!
Actually, 3" is really the best size you can get, expecially for your
engine. Your muffler might make it a bit loud, but maybe not, you'll
just have to put it on and see. You can always swap on a quiter one
too. Good luck,
-Zak


--- In BC-BFLegacyWorks@y..., "stu_j_ure" <stu@f...> wrote:
> I have just inherited a turbo back 3" exhaust from a WRX. Complete
> with dual/splitter front pipe (no cat and all HPC'ed), mandrel bent
> pipe work and big polished stainless straight through muffler with
4"
> tip.
> This all sounds really good - but after talking to a few people in
> the "know", I am wondering about turbo lag, drop in torque, and
> obviously the noise/drone factor.
> So I dont know wether its worth the effort to make the install if
its
> going to cause some issues. Or if I should sell it and get a new
> system made from scratch to suite the car.
> I thought this system would be great after reading the threads on
the
> exhaust buy coming up!
>
> Any Ideas?
>
> Stu (nz)
> 91 legacy, ej20 turbo (jap specs)


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The only problem I have with putting it all together on my legacy is
that I will have to cut up some sections to fit around the diff, and
lengthen the whole system as it is slightly different to the WRX.
Then if it is to noisey (which I think it will be) I will have to add
a resonator mid way. And if I am going to have to do that I might
aswell have started from scratch!
Maybe I should just keep the front pipe. BUt whats with the turbo lag
problem?

And cost is a factor, especially if there is a ton of work involved.

--- In BC-BFLegacyWorks@y..., "laser158754" <laser158754@y...> wrote:
> I would say stick with that system, sounds like it will work great!
> Actually, 3" is really the best size you can get, expecially for
your
> engine. Your muffler might make it a bit loud, but maybe not,
you'll
> just have to put it on and see. You can always swap on a quiter one
> too. Good luck,
> -Zak
>
>
> --- In BC-BFLegacyWorks@y..., "stu_j_ure" <stu@f...> wrote:
> > I have just inherited a turbo back 3" exhaust from a WRX.
Complete
> > with dual/splitter front pipe (no cat and all HPC'ed), mandrel
bent
> > pipe work and big polished stainless straight through muffler
with
> 4"
> > tip.
> > This all sounds really good - but after talking to a few people
in
> > the "know", I am wondering about turbo lag, drop in torque, and
> > obviously the noise/drone factor.
> > So I dont know wether its worth the effort to make the install if
> its
> > going to cause some issues. Or if I should sell it and get a new
> > system made from scratch to suite the car.
> > I thought this system would be great after reading the threads on
> the
> > exhaust buy coming up!
> >
> > Any Ideas?
> >
> > Stu (nz)
> > 91 legacy, ej20 turbo (jap specs)


------------------------ ---------------------~-->
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The turbo lag problem usually results from someone getting carried
away with the idea of "bigger is better" and this is not really true.
We are running some tests on headers and also have seen what Subaru
has on the Rally car and when you are dealing with the system and you
get to large before the turbo you will lose heat,velocity and pressure
the very things your turbo uses to turn the turbine wheel. After the
turbo things are not as critical by any means and a 21/2" or a 3"
should work fine. Turbo lag can also be a problem if you have a
turbo or intercooler such as a front mount that is to large.
AL(CO)





--- In BC-BFLegacyWorks@y..., "stu_j_ure" <stu@f...> wrote:
> The only problem I have with putting it all together on my legacy is
> that I will have to cut up some sections to fit around the diff, and
> lengthen the whole system as it is slightly different to the WRX.
> Then if it is to noisey (which I think it will be) I will have to
add
> a resonator mid way. And if I am going to have to do that I might
> aswell have started from scratch!
> Maybe I should just keep the front pipe. BUt whats with the turbo
lag
> problem?
>
> And cost is a factor, especially if there is a ton of work involved.
>
> --- In BC-BFLegacyWorks@y..., "laser158754" <laser158754@y...>
wrote:
> > I would say stick with that system, sounds like it will work
great!
> > Actually, 3" is really the best size you can get, expecially for
> your
> > engine. Your muffler might make it a bit loud, but maybe not,
> you'll
> > just have to put it on and see. You can always swap on a quiter
one
> > too. Good luck,
> > -Zak
> >
> >
> > --- In BC-BFLegacyWorks@y..., "stu_j_ure" <stu@f...> wrote:
> > > I have just inherited a turbo back 3" exhaust from a WRX.
> Complete
> > > with dual/splitter front pipe (no cat and all HPC'ed), mandrel
> bent
> > > pipe work and big polished stainless straight through muffler
> with
> > 4"
> > > tip.
> > > This all sounds really good - but after talking to a few people
> in
> > > the "know", I am wondering about turbo lag, drop in torque, and
> > > obviously the noise/drone factor.
> > > So I dont know wether its worth the effort to make the install
if
> > its
> > > going to cause some issues. Or if I should sell it and get a new
> > > system made from scratch to suite the car.
> > > I thought this system would be great after reading the threads
on
> > the
> > > exhaust buy coming up!
> > >
> > > Any Ideas?
> > >
> > > Stu (nz)
> > > 91 legacy, ej20 turbo (jap specs)


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So my ej20 turbo with the air/water IC and the 3" system described
below would be o.k. - apart from the noise?


--- In BC-BFLegacyWorks@y..., "milehial2000" <acroxford@h...> wrote:
> The turbo lag problem usually results from someone getting carried
> away with the idea of "bigger is better" and this is not really
true.
> We are running some tests on headers and also have seen what Subaru
> has on the Rally car and when you are dealing with the system and
you
> get to large before the turbo you will lose heat,velocity and
pressure
> the very things your turbo uses to turn the turbine wheel. After
the
> turbo things are not as critical by any means and a 21/2" or a 3"
> should work fine. Turbo lag can also be a problem if you have a
> turbo or intercooler such as a front mount that is to large.
> AL(CO)
>
>
>
>
>
> --- In BC-BFLegacyWorks@y..., "stu_j_ure" <stu@f...> wrote:
> > The only problem I have with putting it all together on my legacy
is
> > that I will have to cut up some sections to fit around the diff,
and
> > lengthen the whole system as it is slightly different to the WRX.
> > Then if it is to noisey (which I think it will be) I will have to
> add
> > a resonator mid way. And if I am going to have to do that I might
> > aswell have started from scratch!
> > Maybe I should just keep the front pipe. BUt whats with the turbo
> lag
> > problem?
> >
> > And cost is a factor, especially if there is a ton of work
involved.
> >
> > --- In BC-BFLegacyWorks@y..., "laser158754" <laser158754@y...>
> wrote:
> > > I would say stick with that system, sounds like it will work
> great!
> > > Actually, 3" is really the best size you can get, expecially
for
> > your
> > > engine. Your muffler might make it a bit loud, but maybe not,
> > you'll
> > > just have to put it on and see. You can always swap on a quiter
> one
> > > too. Good luck,
> > > -Zak
> > >
> > >
> > > --- In BC-BFLegacyWorks@y..., "stu_j_ure" <stu@f...> wrote:
> > > > I have just inherited a turbo back 3" exhaust from a WRX.
> > Complete
> > > > with dual/splitter front pipe (no cat and all HPC'ed),
mandrel
> > bent
> > > > pipe work and big polished stainless straight through muffler
> > with
> > > 4"
> > > > tip.
> > > > This all sounds really good - but after talking to a few
people
> > in
> > > > the "know", I am wondering about turbo lag, drop in torque,
and
> > > > obviously the noise/drone factor.
> > > > So I dont know wether its worth the effort to make the
install
> if
> > > its
> > > > going to cause some issues. Or if I should sell it and get a
new
> > > > system made from scratch to suite the car.
> > > > I thought this system would be great after reading the
threads
> on
> > > the
> > > > exhaust buy coming up!
> > > >
> > > > Any Ideas?
> > > >
> > > > Stu (nz)
> > > > 91 legacy, ej20 turbo (jap specs)


------------------------ ---------------------~-->
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and no minimums.
FREE Money 2002.
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The turbo lag problem usually results from someone getting carried
away with the idea of "bigger is better" and this is not really true.
We are running some tests on headers and also have seen what Subaru
has on the Rally car and when you are dealing with the system and you
get to large before the turbo you will lose heat,velocity and pressure
the very things your turbo uses to turn the turbine wheel. After the
turbo things are not as critical by any means and a 21/2" or a 3"
should work fine. Turbo lag can also be a problem if you have a
turbo or intercooler such as a front mount that is to large.
AL(CO)





--- In BC-BFLegacyWorks@y..., "stu_j_ure" <stu@f...> wrote:
> The only problem I have with putting it all together on my legacy is
> that I will have to cut up some sections to fit around the diff, and
> lengthen the whole system as it is slightly different to the WRX.
> Then if it is to noisey (which I think it will be) I will have to
add
> a resonator mid way. And if I am going to have to do that I might
> aswell have started from scratch!
> Maybe I should just keep the front pipe. BUt whats with the turbo
lag
> problem?
>
> And cost is a factor, especially if there is a ton of work involved.
>
> --- In BC-BFLegacyWorks@y..., "laser158754" <laser158754@y...>
wrote:
> > I would say stick with that system, sounds like it will work
great!
> > Actually, 3" is really the best size you can get, expecially for
> your
> > engine. Your muffler might make it a bit loud, but maybe not,
> you'll
> > just have to put it on and see. You can always swap on a quiter
one
> > too. Good luck,
> > -Zak
> >
> >
> > --- In BC-BFLegacyWorks@y..., "stu_j_ure" <stu@f...> wrote:
> > > I have just inherited a turbo back 3" exhaust from a WRX.
> Complete
> > > with dual/splitter front pipe (no cat and all HPC'ed), mandrel
> bent
> > > pipe work and big polished stainless straight through muffler
> with
> > 4"
> > > tip.
> > > This all sounds really good - but after talking to a few people
> in
> > > the "know", I am wondering about turbo lag, drop in torque, and
> > > obviously the noise/drone factor.
> > > So I dont know wether its worth the effort to make the install
if
> > its
> > > going to cause some issues. Or if I should sell it and get a new
> > > system made from scratch to suite the car.
> > > I thought this system would be great after reading the threads
on
> > the
> > > exhaust buy coming up!
> > >
> > > Any Ideas?
> > >
> > > Stu (nz)
> > > 91 legacy, ej20 turbo (jap specs)


------------------------ ---------------------~-->
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and no minimums.
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I think you would I have a stainless 2.5" made by Super Sprint on my
car. It is a EJ22t with the same IC as you have a light flywheel,
overdrive pulley,HP fuel pump, modified to run 15lbs boost at 7300 rpm
and everything seems to work well. I think our biggest problem after
the exhaust is the stock exhaust manifold it is heavy and not very
well designed for maximum performance.
AL(CO)



--- In BC-BFLegacyWorks@y..., "stu_j_ure" <stu@f...> wrote:
> So my ej20 turbo with the air/water IC and the 3" system described
> below would be o.k. - apart from the noise?
>
>
> --- In BC-BFLegacyWorks@y..., "milehial2000" <acroxford@h...> wrote:
> > The turbo lag problem usually results from someone getting carried
> > away with the idea of "bigger is better" and this is not really
> true.
> > We are running some tests on headers and also have seen what
Subaru
> > has on the Rally car and when you are dealing with the system and
> you
> > get to large before the turbo you will lose heat,velocity and
> pressure
> > the very things your turbo uses to turn the turbine wheel. After
> the
> > turbo things are not as critical by any means and a 21/2" or a 3"
> > should work fine. Turbo lag can also be a problem if you have a
> > turbo or intercooler such as a front mount that is to large.
> > AL(CO)
> >
> >
> >
> >
> >
> > --- In BC-BFLegacyWorks@y..., "stu_j_ure" <stu@f...> wrote:
> > > The only problem I have with putting it all together on my
legacy
> is
> > > that I will have to cut up some sections to fit around the diff,
> and
> > > lengthen the whole system as it is slightly different to the
WRX.
> > > Then if it is to noisey (which I think it will be) I will have
to
> > add
> > > a resonator mid way. And if I am going to have to do that I
might
> > > aswell have started from scratch!
> > > Maybe I should just keep the front pipe. BUt whats with the
turbo
> > lag
> > > problem?
> > >
> > > And cost is a factor, especially if there is a ton of work
> involved.
> > >
> > > --- In BC-BFLegacyWorks@y..., "laser158754" <laser158754@y...>
> > wrote:
> > > > I would say stick with that system, sounds like it will work
> > great!
> > > > Actually, 3" is really the best size you can get, expecially
> for
> > > your
> > > > engine. Your muffler might make it a bit loud, but maybe not,
> > > you'll
> > > > just have to put it on and see. You can always swap on a
quiter
> > one
> > > > too. Good luck,
> > > > -Zak
> > > >
> > > >
> > > > --- In BC-BFLegacyWorks@y..., "stu_j_ure" <stu@f...> wrote:
> > > > > I have just inherited a turbo back 3" exhaust from a WRX.
> > > Complete
> > > > > with dual/splitter front pipe (no cat and all HPC'ed),
> mandrel
> > > bent
> > > > > pipe work and big polished stainless straight through
muffler
> > > with
> > > > 4"
> > > > > tip.
> > > > > This all sounds really good - but after talking to a few
> people
> > > in
> > > > > the "know", I am wondering about turbo lag, drop in torque,
> and
> > > > > obviously the noise/drone factor.
> > > > > So I dont know wether its worth the effort to make the
> install
> > if
> > > > its
> > > > > going to cause some issues. Or if I should sell it and get a
> new
> > > > > system made from scratch to suite the car.
> > > > > I thought this system would be great after reading the
> threads
> > on
> > > > the
> > > > > exhaust buy coming up!
> > > > >
> > > > > Any Ideas?
> > > > >
> > > > > Stu (nz)
> > > > > 91 legacy, ej20 turbo (jap specs)


------------------------ ---------------------~-->
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and no minimums.
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