557 P-51 BUILD AND DYNO RESULTS - 460 Ford Forum
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post #1 of 14 (permalink) Old 07-19-2013, 04:48 PM Thread Starter
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557 P-51 BUILD AND DYNO RESULTS

Thought I would share this with those interested in a P-51 build

Best power was with 28* timing.

Headers were 2 1/8, wish I could have tried some 2 1/4.










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post #2 of 14 (permalink) Old 07-19-2013, 06:15 PM
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helluva build. nice job.

what kind of main caps are those?

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post #3 of 14 (permalink) Old 07-19-2013, 06:20 PM Thread Starter
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helluva build. nice job.

what kind of main caps are those?

The center three came from Engine Systems long time ago, the rear is a ProGram engineering, and I made the front cap out of 4140.
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post #4 of 14 (permalink) Old 07-19-2013, 08:09 PM
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Nice. P51s getting it done.


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post #5 of 14 (permalink) Old 07-19-2013, 08:25 PM
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Holy crap those are some big intake ports!!! Nice job!

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post #6 of 14 (permalink) Old 08-03-2013, 08:06 PM Thread Starter
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Customer made 3 passes today at the track, he was not sure what the density altitude was but the track sits at 2800ft. We ran the car with the 5:13 gear and it only turned 6200 at the stripe so we need to put more gear in the car. Engine made peak hp at 7000.

2515 lbs
Launch rpm 5000
shifted @ 7000
6200 @ finish line

1.16 60 ft
3.48 330
5.17 660
123.5 mph....... The mph is off at the track he runs at, all the guys say it is way off, I know this same car with the old motor ran 124 at another track

How much do you guys think more gear will pick it up
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post #7 of 14 (permalink) Old 08-07-2013, 09:20 PM
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What size tire? I would think that the converter looks to be on the tight side. Most cars running that fast(at that weight) normally have no more than 4.86 and usually a 4.56.

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post #8 of 14 (permalink) Old 08-09-2013, 05:20 PM Thread Starter
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What size tire? I would think that the converter looks to be on the tight side. Most cars running that fast(at that weight) normally have no more than 4.86 and usually a 4.56.
That was the conclusion we came to. We have a converter coming from PTC.
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post #9 of 14 (permalink) Old 08-09-2013, 06:36 PM
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Good deal. Lane and Kenny will get you fixed up.

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post #10 of 14 (permalink) Old 08-17-2013, 03:35 PM
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I would add another support to the oil pick-up tube via another main bolt to help with vibration, I have seen many like yours break that were not double stabilized.

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post #11 of 14 (permalink) Old 08-17-2013, 05:17 PM Thread Starter
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I would add another support to the oil pick-up tube via another main bolt to help with vibration, I have seen many like yours break that were not double stabilized.


Sounds like a good idea, winter project.
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post #12 of 14 (permalink) Old 08-25-2013, 05:12 PM Thread Starter
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Got the PATC converter put in



Launched at 5000

shifted at 7000

4500 DA



Ran a 5.05



We have done very little tuning due to working out some bugs, I believe with some better air and some tuning there is a 4 second pass in there.



The converter picked it up .07 in the 330



The mile an hour cone is short on this track so add about 10mph they say.
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post #13 of 14 (permalink) Old 09-04-2013, 10:04 AM
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Quote:
Originally Posted by stuska1 View Post
The center three came from Engine Systems long time ago, the rear is a ProGram engineering, and I made the front cap out of 4140.
If you dont mind me asking did you have the cap heat treated or is it ok to run normal?
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post #14 of 14 (permalink) Old 09-04-2013, 12:58 PM Thread Starter
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If you dont mind me asking did you have the cap heat treated or is it ok to run normal?


No heat treat needed. 4140 is pretty hard.
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