In my scone its no surprise if an "A" can make that power
considering an inferior similar pushrod 1.4 litre can make
500hp in rally racing spec with massive boost.
That dont "Sierra" in developed Renault R5 GTs have smaller
valves and ports than an A series but otherwise looks like
a twin, yet has amazing manifolding / hardware and I dont
think wet sleeves help it to be stronger than an A series
as some forums report movement issues at high boost.
50PSi assures a grenade, they take it for short periods.
The solid little A series could make big power if setup
properly and reliably providing cooling and pre-ignition is
not & issue but like you said few have the money, time or
inclination for big hp when also there are other options.
Shoot out mode on a DD is not considered the most reliable
hp reading as its always on the high side and humans love
to brag over big things no matter the activity.
If you look at the curve on the screen its very peaky and
would not be easy to get to hook up on the track without
some major chassis/box settings and driving skill etc.

The T50 does not have the best first gear ratio so its
an achievement to run that fast if its a stocky t50.
Im sure theres a bit more to come from this car yet hitting
the 9s will be easier in a well setup auto.

I dont believe any 8v L series has run this fast :)

Tappet has resurfaced, didn't he work there or have his car done by that mob? I thought that was his CA.

Could be completely wrong.

Fairly easy to jump on the bandwagon and say it's suspect, but I'll tell you I'd be pretty disappointed if it were completely false. For now I'm a believer, and if it is only exaggerated I'm pretty confident that I'd still be (and a lot of others) impressed with the true figures.

I wouldn't be surprised if it had fairly extensive work done internally and although it spun those numbers I seriously doubt it could do it for very long at all. All the 'extensive work' could be anything really from a custom crank, to H-beams and forgies to bigger cc's. Who knows?

I would expect to hear that it isn't an A12 and that that was never the case. I'd still be very impressed if it were a big CC A-series but that sort of power out of an A12 is pretty mind blowing.

It is seems to be a common thing for the big HP forced induction engines to have regular access to a rolling road, the thing that is common with all of the setups is (lots of) development and dedication. Perhaps a lot of people give up on their setups too early to really develop them into something really quite powerful, look at the effort that Simon has gone through. I don't think he's even used half of his tricks yet and that thing hauls ass.

I think the Yatala setup was just a dyno queen
as he seemed to do the same thing with the ca18det
that replaced the A series turbo.
Their 320hp DD would be closer to a real 280hpatw.

yeah, that's why i asked for Yatala's mph

As we all know, you have to take dyno numbers with a grain of salt. On a given day, it's fair to compare the figures of different cars on the same dyno. But with "corrected" figures etc who really knows? I've heard of dyno guys holding the (atmospheric) temprature probe in the hand to warm it up to fiddle with the temprature correction or something. And engine builds in US magazines often quote HP numbers as being altitude corrected too.
But the timeslip doesn't tell lies. Thats real world and in real time. Irrespective of what numbers a car puts out, the MPH is irrefutable proof of an engine having the goods or not. Whereas the ET tells more of a story about the chassis it's in. That ute has both.

I havnt seen any more info on that car/engine. I do know shootout mode on a Dyno Dynamics Dyno tends to be Hp happy.

Im using 700cc injectors at 75% duty cycle for only 170 hp. Im sure it would be over 200 hp on a DD dyno in shootout mode.

is there any actual info on that Yatalla car's 320bhp? eg injector size? or drag times, particularly with mph?

I remember when they claimed 240rwbhp from 440cc injectors, which is a bit on the 'happy dyno' side of things... unless they had 5 injectors!

The only way to be fair with power comparisons is to calculate power output per litre.
Eg. 320hp Yatalla headworks A12. An L20 would have to make 532Hp to be the same power/Lts.

13.1 NA wonder what the boosted time is?
How about A series whats the fastest NA?

That's good to hear. E85 is not very common here, but only in certain parts of the USA.

EV has the torque (10 secs) AND the power (129 mph)

I never did like the L because is noiser with that long chain and not as easy to work on as the A. But L has the displacement.

Speaking of L-series, sticks did 13.1 @ 100mph w/o turbo.