P-51 headed 472 build... DYNOED

Looks good....I like it..D

It was a long summer working out of town but I'm finally up and running.
I'm putting the 'Chero on a chassis dyno at Dynomotive http://dynomotive.ca/ tomorrow nite for some tuning, then it's off to the track Friday night.
The old A429 headed 466 put down 466 hp at the wheels last year with a best of 11.77 @ 115.35 mph at Race City last year.
This should do a little better eh:

I'd say

Put the 'Chero on the dyno last night at Dynomotive here in Calgary. http://dynomotive.ca/
My old A429's were max ported but there was a good gain with the P51's.
The Ranchero has a C6 prepped by Frank Merkl, 4000 stall Pro-West converter, 4:11 Detroit Locker, 28"x11" ET Streets.
The 472: 12:1 Diamond pistons, Comp solid roller with 110 LSA, 262/262 duration @ .050", .663/.663 lift , 1000cfm HP Holley,
MSD distributor &6AL, out of the box P51's and a mid 90's Taurus smog pump for evacuation.
We optimized the timing at 31 degrees @ 4000rpm.
Basically the same build as my 466 with new heads. It runs on 94 octane ethanol.
The dark lines are this year's pass vs the dyno pull on the 466.
The DA was about 5700 ft. last night.
I'm heading to the track tonight.

My complete build:
D1VE block with Hyghflow Dynamics http://www.highflowdynamics.com/ block and oiling mods, bored .060" over, ARP main and head studs.
Stock internally balanced crank
Eagle H beam rods, stock length
Diamond flat top pistons http://www.bfevansraceparts.com/
Balanced reciprocating system
Clevite 77 main and rod bearings
extra wide cam bearings http://www.bfevansraceparts.com/
Kaase oil pump http://www.bfevansraceparts.com/
ARP oil pump drive shaft
windage tray
crank scraper
Kaase P51 heads c/w roller springs and titanium retainers, out of the box non ported http://www.bfevansraceparts.com/
Smith Brothers 3/8" push rods
Comp solid roller lifters
Comp cam #34-710-9, 110 degree LSA, duration 262/262 degrees @ .050", .663/.663" valve lift, double pinned
Comp stainless roller rockers - 1.7 ratio
JP Performance roller timing chain
Edelbrock Victor intake, worked on in the plenum
1000 cfm HP series Holley carb
MSD distributor and 6AL ignition
Meziere electric water pump
Mid 90's Taurus smog pump for crank case evacuation
Hooker 6115's - 1 7/8" primaries, 3 1/2" collectors

Well??????....How did the 19hp at the wheels do????......D

Not good. The air was about 5200 FT DA.
My first run I tried launching at about 2000 (4000 stall converter)... 1.82 sixty foot, 12.02 @ 113.32mph.
Second run... I foot braked it over 3000 until the car was starting to push through the lights. The result was
my best ever 60 Ft - 1.71 but I only went 11.90 @ 113.2 mph.
The best time with the old motor was a 1.77 60 ft. with an 11.77@ 115.35 mph in my 3775 lb car +me at 210 lbs.
The diagnosis from people who worked with my motor previously is my converter is not working right.
I talked with Lenny @ UCC today for a solution.
Our track is done for the season now.

Bummer, you get it right next season. Nice build by the way.

Wondering how the whole power curve was affected by the heads???? Going to take some tweaking to figure out how to take advantage of those heads. Changing something major in your combination invariably causes something else to be changed. How are you shift points compared to before? Wish your track was not closing already..............D

A new Cam and Convertor sounds like where you need to go next.

Here is my take....heads have the potential to make the car quicker.....if you can figure out how to make them work on your particular combination......it may not be simple........Spending money does not guarantee a quicker car.......as things have changed. A new cam and convertor would have made the car quicker before as well.......so figuring out the proper direction is key in this situation......Those were also the first passes with the new combination and there are so many things to work with before throwing money and parts at it.....should be as clear as mud........D