572 World Aluminum close to Dyno

[Wookie316]

Are the heads basically the same as they were when you ran them before?

They are exactly as I got them from you. 0 changes. They only had dyno pulls on them. I ran the EZ-1’s on the 511 the last few seasons. So they are basically new off your bench.

 

[Tex013]

great numbers .
But , my question is . Are you going to upgrade cage / safety etc ? Its a lot to pull back to run 10.00s as that should run mid 9s . I see that here with some guys and they find they become inconsistant running with limited throttle pulled timing etc .

Tex

 

[PRHeads]

They are exactly as I got them from you. 0 changes. They only had dyno pulls on them. I ran the EZ-1’s on the 511 the last few seasons. So they are basically new off your bench.

My avatar might look familiar then.

 

[Wookie316]

My avatar might look familiar then.

That’s a photo of my -1? Cool.

 

[PRHeads]

That’s a photo of my -1? Cool.

Yup.

 

[PRHeads]

Were the guys that built it happy with it?

 

[Wookie316]

Were the guys that built it happy with it?

Yeah, for not being a perfectly matched combo, they were impressed with the power it made. It’s basically 60HP across the entire curve better then the 511.
I asked Louie what he would of done for a cam to fit the combo better? He figures a slightly bigger LSA and a mid 270 range pushing high .700 lift would really bring it alive.
We tested with C16, but he figures C14 would be a better fit for that motor. We didn’t have any to test with. Fuel is a bit of a challenge in western Canada right now.
My vac pump is a little weak as well. So a bit more vacuum would probably help a bit more too!
I do have a victor manifold we were going to try as well. Their machinist got COVID though and didn’t get it cut before the dyno.
The motor really picked up with the 2” spacer, suggesting the bigger Indy manifold works better then the smaller Victor I also have. So I probably won’t even bother testing the Victor at the track.

 

[dvw]

It held on to rpm further than I thought with the small cam. I'm sure you are pleased. Mine has run renegade 114 for 9 years, 15.2-1
Doug

 

[biomedtechguy]

Yeah, for not being a perfectly matched combo, they were impressed with the power it made.

As y'all know I am not going for "max power" with my 572, but I couldn't help to chuckle when I read about yours not being a perfectly matched combo. I guess I will achieve my goals of not having an expensive motor built only to have it pushing the ceiling of its capabilities and endurance.
Again, great job and I want to see how Barney behaves with the new mill!

 

[Wookie316]

511 and 572 curve graph over each other.

 

[biomedtechguy]

511 and 572 curve graph over each other.

Similar looking shape to the curves from what I can tell. Looks like the 572 has more torque gain than HP gain up to about 5600, (I will see if you posted lower RPM TQ and HP data) torque seems to fall at a little steeper rate w/the 572 above 6600...
My inexperienced .02..
I'm really curious what the dip in HP and TQ is at 6600 w/the 572?

 

[PRHeads]

Was that 268/276 cam the one I gave you the numbers for?

 

[Wookie316]

Was that 268/276 cam the one I gave you the numbers for?

No. It was the other one I had.
Not sure whether to put that one you spec’d into the 511, or what?
Decisions.

 

[PRHeads]

I don’t recall the specs exactly, but wasn’t it close to 268/276?

 

[Hemirunner]

You put a cage in it for me, and I’ll load it up tonight.

12” of snow in the way unless you bring a 4 post lift so we can double up and make some room lol

 

[Wookie316]

269/276. It also had a bit more lift. .740 range. Perhaps I should have used it?

In Canadian air density, I’m sure I’m already in the 9.80 range. So will need to mess with my ET Genie some. ;)

 

[Budnicks]

nice #'s

congrats

 

[PRHeads]

Looking at the Moroso calculator.......
In the low-10’s and 3900lb range, 60hp is worth about .25 ET and 4mph in the 1/4.

You’ll have get the car weighed with the new motor in it.

 

[Wookie316]

It weighed 3825 I believe with the 511. So it should be around 3715 plus me.
Car ran 10 teens with radials and 10 twenties with the bias. So in theory it should be low 9.90’s with radials and 10.0’s with bias.
Our air density always sucks here. Usually mid 3500 range.
Some track with good air, I am sure the car would run 9’s regularly.
Will be interesting.

 

[440rb]

I'm guessing weight of course but@3900lbs/881hp it could look something like this>
60 Foot E.T. : 1.33 Seconds
1/8 Mile E.T. : 6.03 Seconds
1/8 Mile Trap Speed : 112.63 MPH
1/4 Mile E.T. : 9.56 Seconds
1/4 Mile Trap Speed : 140 MPH
with good air so take some off I guess.