shane pickett has that incredible A series turbo with nothing spared, it was on a thread somewhere with some pics of the engine.
I will say the issue are boxes, all getting thin in the tooth unless you have a good t50
the nissan stuff is just too weak as stated by many.
just as an option or suggestion you could sell all your A series stuff and make a good profit
and put it towards L series twin cam 16v goodness.
There are plenty of L series with ka24de heads these days getting around in datsun 1600s
making around 160-280+hp all in NA trim with a few turbo ka24e 12v heads as well.
L16 sleeved block for 89mm Ka pistons 500-600
Wiseco pistons $590usd or mod some cheap factory
mazda skyactiv or MZR L5 89mm pistons
KA24DE head $50
(use as is they make 180-190hp with bolt ons eg. 240sx in the USA)
Z series bottom timing case cover
shortened KA chain
18RG toyota crank sprocket
Part Number: 223-593
UPC: 53059620385
Inside Diameter (In): 1.298 Inch
Number Of Teeth: 18
Bike carbs r1 41mm
RWD timing case and dizzie setup
RWD inlet manifold chopped for bike carbs
bluey elec dizzie
if you want more than 160hp Brian Crower has
many goodies also exceed manufacturing has many
manifolds and other goodies.
KA24de is factory 150hp ate on the 240sx
L16 or L18 (l18 crank) and 89mm bores will have
400cc less so would make 150hp at higher rpm
Get the inlet camshaft reground locally done
with some headers should be able to get 160hp
as will also have higher compression if you
run longer rods to suit the ka24de pistons.
41mm R1 bike carbs on rwd inlet manifold from
the US also front dizzie timing cover and
sprocket to suit bluebird dizzie and you should
be able to have it all for around 2kaud.
With boxes you can abuse without a thought.
Baz did the 89mm c dry sleeve to the L series
blocks and Americans go up to 90 even 91.2 using
mitsubishi factory pistons. I would go for
90mm since you are sleeving and Wisecos off ebay.
https://www.ebay.com/itm/Wiseco-Piston ... :9S0AAOSwuMFUjazH&vxp=mtrHead gasket are avail from Les or can mod
your own ka24de factory one.
No pollution gear bonus like A series and
close to the LZ engine but much cheaper.
this is the 270+hp one all NA owned by Lampy
https://s14-eu5.ixquick.com/cgi-bin/se ... 8832317742df04f3af5e64959ozdat info thread on the ka24de L series conversions
http://ozdat.com/forum/viewtopic.php? ... b+head+conversion#p255201