Only 2-3 known people to me have made more than 200hp from a turbo A series
Someone from Ballarat, another in Finland & another in Yatalla albeit very
peaky hp with little drive-ability for the last example.

I would ask if the Ballarattian is prepared to do the work.

Use E-go.com.au 80 each way depo to depo from Sydney depo near you to
Mitchell Park to Ballarat 3355 and some petrol money time for him.

No carb will make a reliable 250+hp atw for an A series unless prepared
to pay more for tuning and setting them up and even then good luck but
no one has done it due to the pitfalls. Will need also e85 or meth.

For 100hp atw a carb can do, anything over 250hp atw efi is the only way and even then you need good money for the right Turbo, Manifolds, ecu, injectors, gearbox, clutch, tuning along with diff, brakes and suspension.

If a similar engine the Renault sierra 1.4 ohv non crossflow with smaller ports found in renault 5 can make a hand grenade 400+hp in the UK with 40-50psi by several enthusiasts spending what the queen spends on her false teeth and hats then coming close to that hp is not cheap or even remotely close with a 32/36 carby turbo unless running illegal liquid explosives like Hydrazine for a split second before your engine turns into a fusion mixed with fission reaction and driver, car and surroundings disappears faster than Skase can move millions into a foreign bank account.

Yeah agreed 200hp is ALOT, would assume fuel injection a necessity along with some smart electronics for ignition management and a handful of dyno hours.

Turbo manifold would have to be one with a tidy collector, as opposed to a log style manifold.

Chris

Friend got a twin ceramic ball bearing unit for his rare Subaru 22B to replace the factory ball bearing VF34 unit from Turbonetics. It is a very good investment they are having a sale atm 1050usd for a up to 330hp ultra fast spooling unit best in the business for the price vs hp and quality. Look up some of Turbonetics customer service comments, achievements and tech section, the guy is a humble genious.
Theres also one of ebay from QLD from a supplier than has about 3 or 4 left atm.

yeah i thought 200 might be a fair bit, but im hoping around 170atw, and will be running electronic ignition also, & will be inquiring on a mid rang manifold with you chris as i inboxes you the other day!

most probs running e85 too

Sounds like a cool build! Should go like stink!

Do use recomend anything, or have any advice??? To my previouse l questions on pg1 just to make sure we are doing the right thing!

Comp ratio looks ok, could certainly drop that if needed. That turbo is the biggest of the series, the common turbo is the T25.

T28 okay?

T25 and t28 are flanges and dont indicate the size of compressor ar exhaust ar or trim