Flow Bench Test CNC Ported 12V Cummins
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- čas přidán 9. 03. 2022
- Check out the flow numbers on our factory cast, aftermarket, Cummins 12V Stage 2 Ported Head! Bolt on BIG POWER!
Pick up one of these heads for your Cummins today at the link below:
powerdrivendiesel.com/product...
Power Driven Diesel is a specialty performance shop engaged in the engineering and development of high performance turbo diesel technologies.
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I just want to add I went in to buy some parts at pDD and man they treat you like family took me in back to see the carnage on The Godfather and took the time to talk to me they truly love there fans and customers thank so much guys 🤘👍
Thank you Garrett for the support
Awesome work ! I have been swirl porting heads since the mid 80s , it simply works , you can get crazy flow without losing low lift flow as you proved in this video ! For years people told me I was off track creating swirl but for years the port work I have done has been outperforming typical port modifiction .
Keep up the great work !
Thank you
@@pddofficial Hey Will I had some more swirl porting experience to share with you , I tried to call you but they would not put me through & said to email & she would forward the email to you which I did but I am not sure you ever got it ! If you have 10 mins some time I would like to share some more info with you . Neil
Love the difference between gasser and diesel racing world. N/a gassers complain about porting. Everyone complains about losing bottom end when they don’t rev 7k rpm and leaving at 3k. Love your technical videos. 95% of people need this.
Thank you
Love your vids! Went and picked me up a 4bt for f150 swap 😂never Cummins swap my 7.3. But I’m definitely about that 4bt life. The prices are in beatable
We have ported 4bt heads if you're looking to push that 4bt some day. Be careful when you get around 600 rwhp on the 4bt, the seem to bend rods and split cylinder walls around that power level and since there are no performance aftermarket 4bt blocks, you're only choice is a deckplate, sleeves, and 1" longer billet rods.
Wow, that's some impressive flow, thanks Will !!!!
Glad you liked it!
This video kinda embodies that old saying "boy's don't grow up their toys just get more expensive" lol very cool deep dive video keep these coming!
Impressive numbers 💪🏻👍🏻
Thank you 🙌
Speechless!!!! You guys rock!!! Way to go Mechanical Mafia!!!
Thank you Mile
Will that was an awesome video i have always been interested in porting cylinder heads from my motorcycle days a cylinder heads makes or breaks any engine I'm waiting for you to get a CNC program for the 24v heads you can use my one as a test mule no problem
As always take care stay safe and God bless you always 🙋♂️🇬🇧
We are working on a VP44 24v head port. It's similar to the common rail other than it has induction hardened seats so much cheaper to produce a performance head without the added cost of oversized seats and guide work.
It's not shade, someone's got to be the best
There are many talented head porters out there, but it seems like everyone else has given up on the 12v heads.
@@pddofficial
Bask in the light of your flow numbers, you did that 👏
Love it
Thank you Todd
Out of curiosity. I've always wondered how well a port flows with the valve removed vs the valve at max lift for the given cam profile.
It would be easy to test. Just remove the valve. Turn it upside down then slide it down the valve guide until it reaches the bottom. Then run the test.
Hell Yeah Brother
Thank you
Few things I would like to see tested. Exhaust manifolds headers. Intake horns. I know the head at the valve is the limiting factor, but curious how much could be gained in a or air horn header swap pending the head would allow.
We have been testing exhaust manifolds and there are measurable results from the various manifolds on the market vs oem exhaust. Videos are planned/in the works.
@@pddofficial I dremeled the crap out my exhaust manifold when I port matched. I went back about 2 inches. I took flow in to consideration. The gasket opening was about 1/4 inch larger all around. I also port matched the turbo to exhaust on both side. Again a lot of metal was removed. Hopefully I didn't mess anything up. The 67/67 turbo you sold me spools up instantly. Cant say if the dremal work did anything cuz I never ran it stock. Just a bad habit of mine. If I tear it down I look to upgrade everything I can while reassembling.
You got a cool tool, and if I had it I would be testing everything I could.
There is a few porting channels out there. Eric Weingartner is someone you may want to check out. You used the same terminology. Its different heads but same rules should apply to flow.
czcams.com/channels/stBBNf9gxD_AcNIVC7xP3w.htmlvideos
I wonder how flow number would respond if you wrote a 5-axis protocol mimicking dermal denticles into the ID of exhaust and intake runners. This way a steady state boundary layer condition would exist instead of transient turbulent vortices potentially.
First third from Minnesota
Shouldn’t you do a test before you open the valve to test for head surface seal?
That would be nice to see
The flow bench loads up then sort of free spins with the valve is closed, I'm not sure it can accurately read in the sub 2 cfm range.
Aren't those the springs you use to replace in the pop up rain bird sprinkler in your front yard
These aren't sprinkler springs, but that's a good spring to try, thanks for the tip!
@@pddofficial I wish you guys could point me in the rite direction on tunning my truck when I get it running cause I wanna shoot for a 1000hp but if not that's cool to
So did you do a different cnc program between the first and second test or was it all work on the valves? You probably should have port biased the shrouding to improve the cylinder swirl. You might have given up some flow numbers but probably made more hp.
Those fancy swirl meters are nice add-ons for the flow bench. Maybe we'll shoot a video with a swirl meter and then follow up with some dyno testing.
@@pddofficial That would be awesome! I kind of feel like the difference it makes is probably more pronounced on a 24V because the injector is centered so the swirl can be symmetric. The offset bowl and injector of a 12Valve no doubt messes some with the swirl effects.
I love you guys. Yall might have already gone over this but, I have an 01 2500 and an 06 2500. I have to save up for the stuff that I get from you and Todd especially since fuel is almost 5.50 here in NC. Tell me why everybody wants the 12v over the 24?
Back in the day, they were much cheaper to modify/add power. That is still true to a point, but the 12v trucks themselves are now stupid expensive to buy so that kinda negates the performance parts cost savings.
kinda new to the physics of cylinder heads but is there any downsides to having a bigger valve size as from the difference in stage 1 and 2 for a truck that dosent make 1000+ like for a 3-400 hp truck with plans on going 1000+
The bigger valve will take metal out of the valve seat so there will not last as long
You back cut the oversized valves more than they already were or were they not already back cut?
Too bad we couldn't see that dual ramp swirl in that intake. What are the numbers at .400 lift?
Back cut valves do pick up small gains in the 2 to 4 cfm range, but it's not cost effective to back cut valves from a manufacturing standpoint until we move enough volume to have the oversized valves mass produced with the back cuts. Some engine builders do not back cut exhaust valves to help reduce exhaust reversion.
How would this benefit any where close to just using a 24v head
Would a 24v head even work a 12v motor. From what I understood a 24v head is some how more restrictive due to the valve size.
Back in the day, the 24v head was a great flow upgrade over a 12v head for high performance builds with the necessary budget to buy new pistons and make the necessary fuel system changes to accommodate the 24v head swap. Keep in mind that 24v heads use rockers with quite a bit less ratio that 12v heads so although stock for stock 24v heads outflow 12v heads at the same lift values, once you factor in the rocker ratio, the difference is not as big. For example, when the camshaft lobe lifts the tappet 0.075", the 24v opens 0.100" whereas the 12v has opened 0.127" or about 27% more.
What did you do to get the extra flow numbers a day later? Some hand work with a dremel?
All port development is done with a die grinder and carbide burrs, then the head is flowed, then if the results are positive, the port is digitalized/scanned on the CNC and then the CNC replicates the port. Finally, the CNC port is flowed on the bench to ensure the CNC program is producing the same results. This video followed the same process.
You mentioned 40 inches of vacuum. 30 is considered a perfect vacuum and is unachievable. Best you can get is 29.99. how does this machine test at 40?
Flow benches use inches of H2O not mercury! 40 inches of water equates to 2.94 inhg.
Fast and Fragile?
Anytime metal is removed from a port, it has a possibility to reduce reliability. It's a balancing act that requires testing, sometimes destructive in nature.
😎🇺🇸🔥
Thank you Peter
Would like to know the price of the build on this engine?
Here's the link to the cylinder head: powerdrivendiesel.com/product/power-driven-diesel-stage-2-cnc-ported-6bt-5-9l-12-valve-cylinder-head/
But remember everyone, flow won’t mean shit unless your engine is made for it. You can have a lot of flow and low hp and tq
No but guys running a simply larger charger and sticks would see great benefits from this paired with a nice camshaft
Thank you for the comment
Send me 1 lol
No Problem just need to go to this link powerdrivendiesel.com/product/power-driven-diesel-stage-2-cnc-ported-6bt-5-9l-12-valve-cylinder-head/ and checkout and you will have it in a few days