Thats good historical stuff, I also recall the earlier f1
cars had pretty small diameters big difference from older
race cars with massive diameters but big torque.

Old Gordon Dobey of Nissan ex-works mechanic used 10 inch tyres
on their 1000 race cars A10 engined he said peeps laughed at him
using smaller diameters wheel/tyre combos, which lowered center
of gravity and lots mini tyre choices.

He said other racers just blamed his engine a well tuned A10
that spun to 10,000rpm though with ti valves, retainers and
hollowed out camshafts he had gun drilled further than oem.

As for SR20DE, the SR16VE was always better with tune could
put out 220hp all day @ 9000rpm about 20hp more than stock.
Though 500usd a pop a long time ago now are hens teeth :(

head stud kit is warranted considering age and prices for oem atm

that is one scary engine combo, fits perfect
looks better than any other engine in there.
I had gt-four engine powering my Liteace Noah
top of range double moon roofed tank and spun
wheels with minimum provocation.
Id be scared to drive that thing!

Easiest and safest is to use 2 pack metal putty the good stuff,
no need for welding or soldering to warp anything or weaken metal
prepare surface well, push it in a little to let putty sit and build up.
Last for ever unless heated to 300c.

Def worth the coin, I see less going for more and this is super rare as it is
the 4 doors seemed to be lighter and easier for racing in terms of access
The center pillar is what keeps these strong and lend well for a roll cage.

Southern Cross Rallye prob will go all hybrid cars soon even lectric.
Super boring WEFarian forced choices these days.

not mine of course just putting it out there
well worth the cash for historic race car
like an investment that grows unlike cash.

on bookface someone kind enough to let me know
https://www.facebook.com/marketplace/i ... e&referral_code=undefined

likely that special mesh belt thing. So easy to drive these things it would be like cheating
and put all the special transmission places out of business that the corrupt F1 had shares in.

https://www.highpowermedia.com/retimag ... missions-williams-cvt.jpg

when I had the 13b in my 1000 the H145 with H150 centre took looks of abuse
more than I expected but had the H190 alloy diff ready but never needed it.
I revved the 13b engine to 9+k rpm and got pulled over for excessive noise
which led to a canary sticker for non engineered running gear.
Yet these little H145 are stronger than I expected them to be and so light
with the alloy centre that the H190 alloy seemed like double the weight.

I recall vaguely oversized full floating 76.5 gpz1000 pistons were shaved 1-2mm
70mm A12 crank and long rods for 1286cc
Pistons up to 77mm with 70mm crank offset ground 0.5mm will give under 1300cc
just use larger bearings and you have 1294cc