More FE Power Cylinder Head Dyno Results

[JC-427Stroker]

Jay, did we pick up the averages on the RE heads as well?

Yes, as follows from averages of the 5000-7000 RPM pulls:

RE heads, 8V intake, Old cam:  792.4 HP, 696.0 lb-ft
RE heads, 8V intake, New cam:  804.1 HP, 705.8 lb-ft

I can't compare from 5300-7300, because I didn't run the old cam in that range.

Cam specs  ?

[jayb]

The cam is a solid roller, 305/317, 276/288 @ .050", 0.800" lift, 111 LSA, installed straight up.

[JC-427Stroker]

that is one STOUT FE...

just as a comparison the cam in my 13:1  A-460 headed  565  ( we were going small on this cam and it ended up 3* smaller than ordered )
306/315 -  275/277 @.050 -  @ .200  196/186   .455 -.421 lobe lift @ 1.8 rocker (net intake lift .805")  113* Lobe sep

Pk trq  5,900 -, 6000   772 lbs ft    993 hp @ 7,300    1,003 @ 7,600

[Cyclone03]

Just sitting here re reading this post and I got thinking how exciting a back fire would be if it was a port injected intake and the top blew off…..
That would sure test the RPM limits of the valve train and bottom end!

[Joey120373]

Saw this, same results might be had with a heat gun,
Though it probably would not be as easy with a full intake and all the little nooks and crannies…

https://youtu.be/RdvvZ1R8nns

And I can’t find the videos now on the car id reenforced filaments, thing it was ABS OR nylon, higher temp stuff but still printable with a general hobby 3D printer.

The carbon actually helps with the warping issues these materials usually have if they are not printed in a heated enclosure.

I really want to start playing with this stuff, the ABS and nylon stuff has a higher melting point, and should survive under hood temps much better than PLA, and evidently, the carbon strands makes it really, really strong. My worry though is it will still be week in the plain it was printed in as it is still just relying on the layer to layer adhesion.

Joe

[FERoadster]

Would be nice to again see the Dyno results of the engine with conventional FE heads before your SE and RE to show the overall impact of your heads and cam changes.  That would be a good base to show for our amazement.
I checked a couple of earlier result threads back into late 2020 and couldn't find the graph.
Wanted to do a copy and paste of the original dyno graph but struck out.
Richard>>> FERoadster

[machoneman]

Would be nice to again see the Dyno results of the engine with conventional FE heads before your SE and RE to show the overall impact of your heads and cam changes.  That would be a good base to show for our amazement.
I checked a couple of earlier result threads back into late 2020 and couldn't find the graph.
Richard>>> FERoadster

Good idea! Here's another one: I'd like to see a 6-71 or 8-71 GMC blower mounted and run up with dual carbs. Bet Jay's heads would score 1,200+ hp w/o a crazy set of pulleys, say 18-20 lbs. of boost.

[JC-427Stroker]

Saw this, same results might be had with a heat gun,
Though it probably would not be as easy with a full intake and all the little nooks and crannies…

https://youtu.be/RdvvZ1R8nns

And I can’t find the videos now on the car id reenforced filaments, thing it was ABS OR nylon, higher temp stuff but still printable with a general hobby 3D printer.

The carbon actually helps with the warping issues these materials usually have if they are not printed in a heated enclosure.

I really want to start playing with this stuff, the ABS and nylon stuff has a higher melting point, and should survive under hood temps much better than PLA, and evidently, the carbon strands makes it really, really strong. My worry though is it will still be week in the plain it was printed in as it is still just relying on the layer to layer adhesion.

Joe

I asked the guy who printed my 3/8th scale model (A-460 tunnel ram)  on his little home unit. He works for the DOD.  He told me some of the  PLA stuff they use with their $250k machines for prototyping are " ULTEM 1010 ( good to 415*), Antero 800NA good to 300*"  " Both are quite strong, around 85Mpa, about 1/2 the strength of aluminum. They require a high temperature extruder to print. Melting point is above 500* F.  You could also look for a material called PEEK" 

[Dumpling]

I don't think the issue(s) he's experiencing are due to low temp, or even really materials. It's the process that lays down a layer at a time, leaving tiny gaps between the layers. Porosity is the issue,.

[JC-427Stroker]

Understood.

The silver material we printed the top with is more dense that the black material. It is heavier.  There's also the ability to print slower which might have an affect on any porosity issues.

[turbohunter]

Sitting here taking a break from moving thinking……..who’da thunk that one day we would be thinking about FEs and 3D printers in the same sentence.

[stubbie]

Use a torch and slightly melt the outside of the plastic. There are video's on YouTube.