Head work

BlkZoomZoom

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Hemi Ram, 71 Plymth Scamp, 71 Plymth Duster 340, 69 Dart 340/4sp
Well I dropped my spare 2.0 head off to get some testing done. I'm having it flowbench tested to see where it is at stock. We're gonna be trying a couple of valve set-ups (he swears he has other valves that will work with some modifications). We will be doing different valve angle jobs to find the best flow numbers. And of course some portwork will be done.

I can't wait to see the flow numbers, I looked around on the site for someone that had posted them before but I couldn't find any.

That with the tricks to the intercooler and pipes I'm doing, plus "other" stuff... I think me a Focus are gonna be pulling away with the numbers. lol
 
My head flowed 242cfms stock and its ported now... i have a graph somewhere ill look for it. i have got the results for the ported one yet hoping a 280 290 to have a nice street port
 
242...good lord! On the intake side or exhaust? At what lift? If thats the case I don't think much power is gonna be made with porting..... thats alotta cfm
 
How does flow testing work? I assume they hook up a source of air, using a standardized pressure and see how much air flows per minute. What is the standard pressure to test with?
 
depends on where you go. I believe its either 10 or 28 in/hg. (dont quote me on that)
 
So if you don't know what pressure it is tested at, then how the hell can you know if 242 is good flow?
 
huh? I don't care what pressure my head is flowed at. I could care less what someone elses numbers were. All I care about is using the same pressure during before and after testing. That way I know I'm going in the right direction. Everybodies gonna get different numbers depending on who tests them, what machines is used, the climate, etc. anyways. I'm only out to impress myself.
 
i posted the number of my ported head flow somewhere...

but still interested to see what numbers the stock head flows at.

what machine (brand and model) will the head be flowed on?

CWiLL - same question - what was yours done on? 242cfm means FA really...for all we know that could be with no valves (which makes 242 totally useless). my numbers posted are with valves and show each stage of valve lift (0.050", 0.100" etc...)
 
my numbers (on super flow 600 bench)

vave lift - intake - exhaust
0.050" - 34.6 - 28.6
0.100" - 70.9 - 60.2
0.150" - 105 - 82.4
0.200" - 136.5 - 114.5
0.250" - 162.9 - 131.2
0.300" - 182.3 - 140.4
0.350" - 198.8 - 146.8
0.400" - 209.3 - 150.7
 
BlkZoomZoom said:
242...good lord! On the intake side or exhaust? At what lift? If thats the case I don't think much power is gonna be made with porting..... thats alotta cfm
If you want to make big power, run more boost. A good port job will help with spool up along with a little more power. But the bottom line is boost is power.
 
lol...yeah i'll be calling you here pretty soon...gotta get a couple of things squared away first.

Since I'm doing the port work myself, It's just costing flow bench time. I'm just curious to see what they flow, and if you can get gains with a couple of tricks.
 
500lift and well ill post graph 2morrow, i forget the specs but its done at a normal lift and water level
 
well 500 lift is pretty useless... unless you have that much lift... and, i'm pretty certain, but that's intake side right?
 
Porting most definately will help out. I know!

BlkZoomZoom said:
242...good lord! On the intake side or exhaust? At what lift? If thats the case I don't think much power is gonna be made with porting..... thats alotta cfm
 
Porting most definately will help out. I know!

Thats why i'm doing it, lol. If you went slower I would've stayed away.
 
Okay got the stock flow numbers today.

Int.
.050- 17.7
.100- 34.7
.150- 53
.200- 68.8
.250- 76.6
.300- 81.4
.350- 85.8
.400- 87.9
.450- 90
.475- 91.1

Ext.

.050- 13.8
.100- 29.4
.150- 44.6
.200- 57
.250- 67.1
.300- 72.2
.350- 74.3
.400- 75.3
.450- 76.3
.475- 76.8

This was with everything stock, brand new head, valves etc. 1.24 Int. 1.091 ext.
We found quite a few area of improvements, I can't wait 'till I get started on them.
 

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