|
I
reckon it will depend a LOT on your intercooler.
If it
is on the large side of things, then I think you'll be ok to go to around 16psi
on the CA if the fuelling is good and no detonation.
Try it
and see. Take it for a thrash and pop the bonnet and stick one hand on a pipe
each side of the intercooler, if they are about the same then you should kick it
back a notch. If the cold side is about ambient temp then you get my thumbs up.
Obviously there is more science to it than that, but that's a good
indication on whether your IC is doing the job.
I've
heard of T25g's running on 18-20psi on SR20's without any problem, but I really
reckon your at the limit by about 16psi on the SR, the S13 seems to die in the
ass when you hit about 6000rpm @16psi. So on a CA you'll be chewing less air up
than a 2lt, so 16psi should in theory be no worse than running 14psi on a SR.
:D
I
don't think the T25g has a T04b comp housing.. Maybe the design is "based on"
the t04b but I am sure it isn't a t04b. Side-by-side they are david and goliath.
Maybe
what you heard is that they are similar design, and the T28 is "similar size to
" the t3 comp.
The
T25, t25g and T28 series are from what I understand like
this:
T25 is
a big version of the T2 (ET pulsar AiResearch jobbie)
T25g
is high-flowed version of the T25, the comp is different in a lot of ways, but
similar size. The high flowing I believe is done on the ex side.
T28 is
a slightly bigger comp than the T25g, also slightly bigger ex side AR but high
flowed like T25g
Flame
me if i'm wrong, but that's how I always understood it.
T3's
and T4's are a different story.
Here
is a picture I prepared earlier....
On the
left is a T04E.
On the
right is a VG30 spec, ceramic poo T3 turbo
In
front is what's left *cough* of a T2 I blew up on my old EXA
Now,
looking at those pics.. The T25 & g are smaller than that T3, about 3/4 of
the size, and about 30% larger than the T2. So that should theoretically put the
T28 about the same size comp cover as a T3.
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