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Porting C9VE heads got 224 cfm at .800 lift... good?

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Porting C9VE heads got 224 cfm at .800 lift... good? Empty Porting C9VE heads got 224 cfm at .800 lift... good?

Post  Maddmattmustangs February 22nd 2010, 12:29 pm

Is 224 cfm at .800 lift a good flow number for an iron C9VE production head with a 1.8 valve?

flow is above 200 from 600 lift on
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Post  dfree383 February 22nd 2010, 12:44 pm

Thats real good....
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Post  Maddmattmustangs February 22nd 2010, 12:57 pm

Really????
my second port flowed about 4 cfm less.
Did the exhaust ports with a dremel Very Happy

so maybe if i copy those ports i can make a strong sleeper motor.... Twisted Evil
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Post  dfree383 February 22nd 2010, 1:10 pm

The real question is where are the mid lift numbers and how turbulant are the ports and where is the flow in a realsitic lift say .650.........
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Post  the Coug February 22nd 2010, 1:34 pm

WOW if you get those kind of numbers Maybe Scotty needs to get tips from you on Porting..... Shocked


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Post  Maddmattmustangs February 22nd 2010, 1:46 pm

dfree383 wrote:The real question is where are the mid lift numbers and how turbulant are the ports and where is the flow in a realsitic lift say .650.........

stays over 200 from 600 lift up.
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Post  dfree383 February 22nd 2010, 1:52 pm

Post the whole Flow Sheet and what / whos bench are you on?
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Post  Greg_P February 22nd 2010, 1:53 pm

What kind of test pipe are you using?
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Post  Maddmattmustangs February 22nd 2010, 1:54 pm

the Coug wrote:WOW if you get those kind of numbers Maybe Scotty needs to get tips from you on Porting..... Shocked


Randy

Im not that good!
This is actually my second set of ported heads. I never flowed my clevelands.

I think the 1.8 valve is what did the flow numbers justice.

Im on the 3rd port now and it has the heat passage in it. would JB weld work well to plug that huge gaping whole back there?

Im at a complete and utter loss on the intakes no idea what im going to do there. Any helpful insight there would be useful.

Im going to try and post pics of the ports when i get home today.
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Post  Maddmattmustangs February 22nd 2010, 1:57 pm

dfree383 wrote:Post the whole Flow Sheet and what / whos bench are you on?

I had a local machine shop send them out to get them flowed i dont remember the name off the top of my head but from what ive heard there bench has been known to be alittle high. Sad

I will try and get that posted as well when i get home tonight.
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Post  Maddmattmustangs February 22nd 2010, 2:47 pm

what would the norm for a full on port job yeld with these heads?
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Post  342g February 22nd 2010, 3:40 pm

Damn, I need him to port mine, I doubt Dennis gets that much out of mine. Sad Sad bom
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Post  Maddmattmustangs February 22nd 2010, 3:59 pm

342g wrote:Damn, I need him to port mine, I doubt Dennis gets that much out of mine. Sad Sad bom

Honestly i dont know how i did that, just shaped the port how i thought would work best. (if i were air screaming through here which turns would i like when....)
I called another local engine builder about 5 min ago i told him what they flowed on a bench and asked if he could check it on his. He volinteered to do it for nothing! Shocked
I just wanna make sure its flowing these numbers. I didnt know that 200 was a hard amount of flow to get out of these heads.
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Post  dfree383 February 22nd 2010, 4:21 pm

1.76 Valve gets in the 200 range +/-, Factory Size with porting, 180ish.

Also using a pipe will show much bigger numbers too.
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Post  Maddmattmustangs February 23rd 2010, 10:29 am

well i had the heads reflowed they flowed as follows:
(without test pipe)

.100 54
.200 109
.300 146
.400 170
.500 193
.600 214
.700 217
.800 219

Im hoping if i back cut the valve that it will help out the lower lift numbers but they apparently are pretty good according to the guy that flowed the heads.

I told him that i did it with a dremel and he looked at me like i was insane! cyclops

Anyway what do you guys think?
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Post  torkair February 23rd 2010, 4:06 pm

Those are some great flow numbers you got there! I'll bet that the slower speed of the dremmel was very helpful in getting a better shape as well.
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Post  Maddmattmustangs February 23rd 2010, 6:08 pm

yea it did although it does cost some bits
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Post  BigBlockRanger February 24th 2010, 10:18 am

Question Question Question Neutral Neutral silent
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Post  Maddmattmustangs February 24th 2010, 10:33 am

BigBlockRanger wrote:Question Question Question Neutral Neutral silent

You ok there ranger?
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Post  OldRedFord February 24th 2010, 11:02 am

Whatever happened to those pics?

Porting C9VE heads got 224 cfm at .800 lift... good? Fresse
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Post  Maddmattmustangs February 24th 2010, 11:20 am

OldRedFord wrote:Whatever happened to those pics?

Porting C9VE heads got 224 cfm at .800 lift... good? Fresse

Im going to try and borrow my fiancees camera for that. I tried with mine but it would not take a clear pic for its life!
the only one that came out remotely useable was the one with that damn cross over port in it.
I hope to get that done this afternoon.
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Post  Maddmattmustangs February 25th 2010, 10:40 am

how do i post pic's?
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Post  paulie9fingers February 25th 2010, 10:47 am

I use the image link from my PhotoBucket account, I believe you have to have a photo sharing account somewhere to post them but I'm not 100% sure.

Here's a link to http://photobucket.com/

My A heads

Porting C9VE heads got 224 cfm at .800 lift... good? DSCN1089

Porting C9VE heads got 224 cfm at .800 lift... good? DSCN1097
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Post  Maddmattmustangs February 25th 2010, 11:06 am

I really wish i had a camera that actually took pictures like that Shocked
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Post  Maddmattmustangs February 25th 2010, 11:09 am

what i started with...
https://s901.photobucket.com/albums/ac220/Madmattmustangs/?action=view&current=Picture079.jpg

Me about 70 percent done
https://s901.photobucket.com/albums/ac220/Madmattmustangs/?action=view&current=P2210034.jpg

As you can see i still need to really work the side wall and short turn then smooth everything down.

I gave up on taking pics of my finished port because it was like taking a pic of a mirror all i could see was the flash off the port Crying or Very sad
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