Very good points taken Harry, Im not sure about the injectors
as I was referring to the Stromberg setup for 100kwatw.
I really wanted to supercharge the engine with a 3sp jatco
and h165 for the street but the pulley setup is not worth it
for the layout I want which was a twin v belt setup off the
crank onto Diesel turbo alternator and off the back of the
alternator onto the amr500 fed by a 2 inch SU.
The t25 going up hill in 4th was a 4.11 ratio 175/60/13s?
If near those tyre and diff sizes Im getting a 3.545 from
the states and with 165/65/13s will need a T20 perhaps or
smaller than the ball bearing ihi V16.

it had 3.9 and 4.3 diffs at different stages and 185 or 195/60 R14s. memory a little fuzzy on that, but definitely 14" wheels (Pulsar ET alloys).

Harry I remember your nice all in one manifold alot of
work went into that by the looks of it.
Thats good to hear so the t25 and v16 with similar cfm
should be alright in my setup. I would prefer the vf16
for BBearings the only issue is in drawtrough, oil might
be an issue taking off at the lights.

I picked that manifold up already built. It was a good design. I'd go with that again or something like Craig's (nopsi) turbo sedan, which I did alot of work on and tuned for him. Manifolds were nice and compact and worked well. This was the one I was referring to with the T25.




you should get the turbo carbon sealed for draw-through application, but personally I'd wait till the standard seals give up. The garrets would definitely be easier for that. Carbon seals may not be available for the other turbos.

the big issue with carby turbo tuning is ignition timing. standard distributor timing curve is all wrong. we used to remove the mech advance and run fixed timing. Its crude but its the simplest way of getting safe timing.

That mani looks even easier to make than the
all steel one I was admiring.
I missed the bit of how much it made or was
it never dynoed? seat of the pants will do
with your experience :)
I want to go locked dizzie, cheap and works
by the sounds or it. I have the oval port
inlets already chopped like the pic above
you posted, what tube size was added to them?
I like it, very even flow to all ports.

I think that pic above is a great example of neat and effective fabrication. The most important feature is symmetrical inlet manifold design.

Like it alot.

Copy that one D and all will be good!

with dizzie, you should take guts out and weld mech advance up, but then convert to boost retard in place of vacuum advance also, this way you can have better timing off boost

It was never dyno'd, but went at least as well as my 116rwbhp L18 1200, maybe a touch harder at higher speeds I reckon. And it was only running 8psi IIRC.

Got the tracing paper out :)
Was thinking of something more like this at the top
to feed the inlets.

Attach file:

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  manifold1.jpg (42.01 KB)

Anyone know if I can use a saab t25 turbo exhaust side
to replace a 180sx t25g?

The saab turbo comes alive at 1800rpm with a 2ltr
not sure on the size but is definitely smaller than
the .63 or whatever the t25g is, Im thinking the saab
is about .43-48 or something.