Re: P51 thread......

maverick532 January 31st 2014, 12:44 pm

I had to remove a live possum from my racecar the day I bought it .

D. Sea January 31st 2014, 1:14 pm

Hey Mike,

I've been gone for a bit but have I really been gone THAT LONG?!?!?!? You've aged! You are 91 years old? Wow, I need to go check with HR and see if I can retire Razz

QtrWarrior February 1st 2014, 12:01 pm

D. Sea wrote:

That would be an understatement..

bruno February 1st 2014, 12:53 pm

I GIVE UP !!!! Very Happy

QtrWarrior February 1st 2014, 1:20 pm

bruno wrote:I GIVE UP !!!!

But I don't.... Cool

bruno February 1st 2014, 4:51 pm

QtrWarrior wrote:
bruno wrote:I GIVE UP !!!!

But I don't....

lets have a litte fun !!!! Twisted Evil

Larry T February 2nd 2014, 1:37 am

what is the 2.300 intake valve size worth in flow number wise on the p51 heads?

c.evans February 2nd 2014, 9:42 am

Larry T wrote:what is the 2.300 intake valve size worth in flow number wise on the p51 heads?

Larry,

About 10 cfm. We've done it with both stainless steel valves and with titanium valves. It works good. Cool

Charlie Evans

bbf-falcon February 2nd 2014, 11:08 am

The same question Charlie on a A head deal going from 2.30 to 2.35 or 2.40 on say a 4.500 0r 4.600 bore

windsor February 2nd 2014, 12:36 pm

bbf-falcon wrote:The same question Charlie on a A head deal going from 2.30 to 2.35 or 2.40 on say a 4.500 0r 4.600 bore

Would like to know this as well. Question

Thanks.

c.evans February 2nd 2014, 3:25 pm

bbf-falcon wrote:The same question Charlie on a A head deal going from 2.30 to 2.35 or 2.40 on say a 4.500 0r 4.600 bore

Rick,
There are some head porters and head designers that believe that you can never put too big of an intake valve in a racing head. However, there are others that say you CAN put too big of an intake valve in a racing head, and they give some pretty good facts about valve efficiency, port velocity and etc. I agree with them.

On the A-460 heads, the 2.350" diameter valve seems about right for most heads that are out there. Just automatically putting a 2.400" valve in there, isn't going to make the head flow better, if, if, if, a 2.350" valve was all that particular port needed mechanically. Now then, if those A-460 heads have been fully ported and flow tested, with flow testing of every cylinder in order to maximize flow, then most often a 2.400" valve will help. We might see an extra 6 to 10 cfm in flow.

An analogy would be like using different intake manifolds. If a guy has 650-700 Hp 514 CID engine that is just so-so, and he's running a Victor single plane, going to the TFS Mafia intake manifold isn't going to give him anything in terms of additional Hp, because the engine did not need the extra airflow the manifold is capable of. However on the bigger CID engines that are in the 850-950 Hp range, then when he switches to a TFS Mafia intake, he might very well see some additional Hp on the order of 12 -20 Hp, because the engine needed the additional airflow.

Many of these speed parts that we buy for our engines will give us something in return, simply based on their own merit. While other speed parts that we buy are "enablers",, things such as low tension rings, gas ports, thin ring packages and etc. give us more Hp when used in conjunction with a vacuum pump.

Hope this helps,
Charlie Evans

bbf-falcon February 2nd 2014, 7:11 pm

Thx Charlie. Smile

supervel45 February 3rd 2014, 12:51 am

richter69 February 7th 2014, 5:02 pm

Bump for a good deal....

61coon February 22nd 2014, 9:50 pm

Bump for some smoking' P-51 Oklahoma heads........

richter69 February 22nd 2014, 11:30 pm

f'in junk.....

yellowhorse7 February 23rd 2014, 11:51 am

Poop...

IDT-572 February 24th 2014, 5:22 pm

Going on the brown truck tomorrow................ Twisted Evil

cool40 February 24th 2014, 7:52 pm

UPS running p-51's??? Damn they must be cheap.. Laughing

yellowhorse7 February 25th 2014, 9:14 am

cool40 wrote:UPS running p-51's??? Damn they must be cheap..

Well, that explains my late deliveries. Now FedEx.....they use Hemi's

KY JELLY February 26th 2014, 9:43 am

I need yellar horses ,rich's fabio's , or brunos credit card number to pay for some parts i bought at bf evans raceparts . Its kinda of advance payment for the grudge match ass whoopin thats gonna be handed out lol

richter69 February 26th 2014, 10:40 am

No credit card here..

supervel45 March 12th 2014, 8:26 am

Barney wrote:
QtrWarrior wrote:If you knuckle draggers can't tone it down, This one is done too...
But coug can say whatever he wants. Is this selective moderating again. I havent come on here in months. Its still the same hypocracy and good ol boy non sense. Only seven people post regularly and theres nothing new. You yuck yucks dont need a forum. You just need a once a month conference call. I dont know why I let myself be talked into coming on here again.

The once a month conference call line was funny as hell, Barney. Don't go over to 460 Ford.com, it could be on a quarterly basis over there it seems.

richter69 March 12th 2014, 1:20 pm

bump for some junk.....

P51 thread...... - Page 9 49790BEE-55B8-40A2-A900-89CFC80AEE76

peter soft chambers.......

cool40 March 12th 2014, 1:56 pm

Looks like scrap..... Cool

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