dyno results

[ky mustang]

We dynoed my new engine last week . It is a 562" big block ford . We used the Kaase P - 51 Street /strip heads. They were ported by Charlie Evans / Lawes Mayfield. Lem Evans designed the engine. I was very pleased with the results.

RPM TQ HP
5500 763.9 800
5600 767.1 817.9
5700 767.5 833
5800 771.3 851.8
5900 776.2 872
6000 786.9 899
6100 785.5 912.3
6200 780.9 921.9
6300 776.5 931.4
6400 768.5 936.5
6500 760.2 940.8
6600 752.9 946.1
6700 745.2 950.6
6800 734.2 950.6
6900 724.1 951.3
7000 713.3 950.7

[jeffwiebe]

Very impressive. Do you have afr numbers?

[rustbucket]

[ky mustang]

a/f 13.41 at hp peak

[68 chevelle]

Nice numbers

[ky mustang]

First pass

[mytmouz]

[vegaracer]

How much quicker than last year?

[ky mustang]

It ran 5.26 with a 882 hp 532 , I Think I might get 5.10 out of this engine when I get the 4 link tuned in. It takes a lot of hp to gain a tenth when you get to the low 5's . I must say I am surprised to see a conventional type layout head run these numbers. I am pleased with what it ran , but I always want to go faster

[jeffwiebe]

I'm no expert but when we dyno'd my motor mid 13's a/f was way lean. We picked up close to 100 hp going from high 13's to low 12's. From my limited dyno experiance i think your leaving some hp on the table. Please correct me if i'm wrong i'm stll learning.

[jmarkaudio]

I'm no expert but when we dyno'd my motor mid 13's a/f was way lean. We picked up close to 100 hp going from high 13's to low 12's. From my limited dyno experiance i think your leaving some hp on the table. Please correct me if i'm wrong i'm stll learning.

You might have picked up 10 +or - HP, 100 sounds way off the scale. My small block went from 812HP to 821HP with a half a point change in AFR. Unless you had some real bad O2 sensors I would think you may have fixed something inadvertently when making changes if you picked up 100HP. Most engines will run from 12's to 14 without a lot of HP change.

[jeffwiebe]

My mistake, we also went from 34* to 40* timing. The timing change with a jet change made almost 100 hp. It made the most power at 12.14 a/f and 41* timing. It may have been the timing change that made the most gain.

[silvanova]

First pass

Nice! What track is that at?

[ky mustang]

We had the a/f from 12.1 - 13.45 . I am sure there maybe some variance in 02 sensors .

Silvanova Thanks , thats at Beach bend Raceway in Bowlingreen Ky.