- When developing any drag car it's always easiest to go down the path that's
already been well travelled and well proven.
However Nikki from Boosted86 Racing has gone down a completely different path
with this Toyota 86 behind me.
And this is in terms of the engine combination it's running.
So Nikki, there's a lot of 86s out there all around the world and of course Camrys
and Celicas as well, the path is well and truely trodden with the Toyota 2JZ.
So that would be the obvious choice.
You've gone with something very different, can you tell us what's in this car?
- Yeah so we've gone with the Landcruiser 1FZ motor.
Originally it's a 4.5 litre but we've destroked it to 3.9 litres to get the revs a bit higher
and just be a stronger overall build for us.
- Alright so when you've got to develop this, essentially from scratch, that's a lot of work,
generally that also comes with a reasonably high expense so what was the impetus
behind going the 1FZ over the 2JZ?
- My partner's had the 2.7 litre which is the four cylinder Hilux motor.
- That's the 3RZ?
- Yes that's the one, and we found this to sort of be the big brother of it and we
saw 900 horsepower out of four cylinders so yeah we didn't want to go the 2J so
wanted to go this one and see what we could do.
- I think it's fair to say as well that the 1FZ has been fairly well developed,
particularly overseas it was for a long time the engine of choice for sand drags
and hill climbs et cetera so definitely no shortage of power available.
Now you've just mentioned that you've destroked it down to 3.9 litres,
part of that was class rules?
- Yeah we can only be a four litre over here in Australia for pro turbo and factory extremes
so yeah we wanted to build a car that we could race in all the classes, not just radial.
- And can you talk to us about the process you've gone through, what do you use in
terms of parts, is this all developed in house or were you buying some off the shelf parts
for the engine to get it where it needed to be?
- Originally when we had the 4.5 litre, we were able to buy a few off the shelf
parts but once we destroked it, custom crank, cams and all that sort of stuff
and we've just sort of had a few different combinations in there and just found
the sweet spot now that we're really happy with.
- In terms of the rotating assembly, if we start with the crankshaft, what is that,
have you got a modified stock crankshaft or is it billet, where have you gone?
- We've got the billet crank in there yeah 'cause they just don't make them strong
enough.
- In terms of the cylinder head, what have you done there to get the sort of airflow
through it that you need to make the sort of power you produce?
- So all the water ports have been plugged and all that sort of stuff and we've just
had a lot of porting and coating done by a performance wholesale.
- With the 1FZ, this is sort of a unique drive arrangement for the camshaft
as well 'cause it runs sort of a scissor arrangement where it drives one cam
and then the other cam is driven off the first cam, does that cause you any issues in
terms of your cam selection and cam timing adjustment?
- Not that I'm aware of, Justin from JW Automotive looks after all the tuning
and engine development for us.
But he develops what he thinks is best for the motor and the combination and what we're
trying to achieve.
- Now clearly it's working, we actually haven't talked about your record so far but this
car's gone 6.55 at 217 which is a world record for six cylinder radial is it?
- Yeah that's correct so we're the fastest import radial car in the world.
So that basically just means it's the fastest six cylinder and yeah we're not too far
behind the V8s.
- In terms of the power that it's producing to run those sort of times, and I think you've
also said it's run as fast as 219 mph on another pass, can you give us an estimate of what
sort of power the engine is producing?
- It's about 2500 horsepower.
- Now with that radial tyre, are you sort of power limited to how much you can put
to the track or could you actually produce more power and go faster still?
- We're actually out of turbo at the moment so that's pretty much what's limiting us
going faster.
- What is that turbo right now?
- We've got a 98 mm Garrett on there.
- OK so we've seen a lot of the competitors, particularly with the 2JZs running 106,
even 110 mm turbos, is it as simple as stepping up to 106 mm turbo and
going a 10th of a second faster?
- Yeah that's what we're waiting on at the moment, we've got a G57 on the way,
it just didn't make it here in time for this weekend so we're hoping to put that
on and yeah take it out the back door.
- Now just talking about the rest of the package with this car, can you talk
to us about the electronics system in it, the computer that you've got controlling
the engine, 'cause that's quite unique as well, the way you've got that set up.
- Yeah so we run the Link ECU, we're actually on two Xtremes.
Just 'cause we've got a lot of data getting monitored on the car and sensors
and all that sort of stuff.
So it's just easier to split over the two Xtremes and just monitor it that way.
- Alright so in terms of those two ECUs, this is quite unusual.
So you've gone this path because you've got a limited number of inputs for the
datalogging, is that what I can understand from that?
- Yes that's correct.
- So one ECU essentially is running the engine, the other for datalogging purposes?
- Yeah just other sensors around the motor like shock sensors and all that sort of stuff.
- Now in terms of the engine management itself, you've got a number of injectors
on this, you're running staged injection, can you talk us through the injectors
that are fitted?
- Yeah so we've got the 2400 cc Siemens injectors and we've got three sets of
those, so we've got our primary set and then we've got duals in the secondary
stage and then we've also got a couple of upstream injectors as well.
- One of the challenges with a radial tyre car is making sure the car stays hooked up
from the moment you leave the line and that power management is so key.
So can you talk to us about how you are managing the power, and I'm guessing this
really comes down to the boost control as the car goes down the track?
- Yeah so Justin and the team at JW Automotive, they look after everything on the car.
We've got some pretty, we've got Santhuff shocks in the front and AFCOs in the rear.
It's pretty simple, no two ways or four ways or anything like that.
And yeah we've just had a lot of R&D to make sure the car goes down nicely.
- Well clearly with a 6.55 at 217 mph, whatever you're doing at the moment
is working.
Certainly look forward to seeing what the car can do with a little bit more turbo,
as long as you can maintain a bit of traction so congrats and look forward to seeing
how the car goes the rest of this weekend.
- Thanks very much.
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