(engine revs loudly)
- Boom. 1,150 horsepower right off the bat.
- That looked pretty effortless.
- I know, turbos are good.
So that was 1150.1 horsepower, 908.6 pound-feet of torque.
What was the maximum boost on that run?
16 pounds of boost at peak right there.
Right at the very, very top.
The thing is still climbing in power at 7,000 rpm,
we're just sort of shutting it off that point
because rpm is a danger.
If we get to the point where it's
making like 1,475 horsepower,
you can bet we'll run more rpm.
But for now, 7,000.
- 16 pounds of boost is nothing.
We got a long way to go.
- Uh huh, it'll be really interesting
to watch how the boost affects the power.
Like right now we add two pounds,
it might make 100 horsepower or 50.
Later on you add two pounds,
it might only make 75 or 40.
You know, it will come down a little bit
as the efficiency drops.
- They call that the Law of Diminishing Returns.
- Let's go let Richard look at his baby
and see how many turns he wants us to put in it.
- How much are you going to go on this step?
- I think we'll go up like two turns.
And kind of see where that is.
That should give us another couple of pounds.
And then each is 30 or 35 horsepower pounds.
- Tell everyone about wastegates, blow-off valves,
boost controllers. - Alright well we've got
stainless headers feeding a pair of turbos.
Because if one turbo's good,
obviously two is twice as good.
Each turbo is feeding a single intercooler
but it's a dual-cored, dual pass intercooler.
We've got wastegates for each one of the turbos.
Right now, they're running on the springs.
It's all controlled and all we got to do is
adjust our little bleed valve as we do that,
more boost, more fun, more power.
- Explain though how the organized leak
is going to increase boost pressure?
- Okay well, the way the wastegate works is
it supplied boost pressure.
That opens the valve up,
that allows exhaust to escape out
and that lowers the boost pressure.
If we tricked some of that flow
by putting a metered leak in it,
now it thinks, "Oh, I'm not getting as much boost,
"so therefore, I have to stay closed longer."
So then the boost goes up.
So as we keep screwing that thing out,
we get more and more leak, more and more boost.
- Well, let's make the screw fall out.
(laughs) Also, we got a intercooler
going on here with ice water flowing through it.
And we're maintaining the ice,
at every pull we're dumping a new bag in
and you're going to pull some of this water out
so that we can chill more ice. - More ice, less water.
More cool, more power.
Should we adjust?
- You can adjust. - Alright.
- Step two: two and a half more turns.
That's it, go. (laughs)
I dunno what to tell ya,
- Got nothing else to tell. - it's nothing else.
- It's like you love, so do so as you will
I think we'll go 1,200, 1,250. - About 12 plus yeah exactly.
(engine revs loudly)
Picked up a pound and a half.
- I didn't see the numbers.
I was concentrating quite a bit
on air and fuel. - I was too.
- 1,200 and a little bit.
- Yeah. - Yeah.
- Step two: 17.6 pounds of boost,
1,213 horsepower, 957 pound-feet of torque.
Go give it two and a half more turns.
One and a half pounds of boost
on that last run picked up 63 horsepower.
Now we've added more ice,
had our eye on the Holley HP EFI
to make sure everything's copasetic.
Got a few more turns in this thing.
This is step three.
(engine revs loudly)