October 5th 7 pm Darin Morgan
- Thread starter pittsburghracer
- Start date
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Newbomb Turk
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Yup, my lard butt will be watching and taking notes.
BTW, you SCORED big time on the
lathe. All that rust we saw in the pictures is just 25 years of surface rust. I took some WD-40 and a rag and it wipes right off.
The ways look showroom. It has 3 and 4 jaw chucks, face plate, a couple of books and a pretty good amount of tool bits and such. Also a live and dead center and chuck.
Plus the dude gave up the stand it’s sitting on.
SCORE SCORE SCORE.
Awesome, thank you for going out of your way to get that for me. If I didn't have housework this weekend I'd come watch it with you.
Newbomb Turk
Well-Known Member
No problem. Not out of the way, and as an added bonus we may have saved the life of a 3-4 week old kitty. We are hoping the vet can save her because she has some issues but they are giving it a go to save her.
She looks a bit rough in this picture but we cleaned her up and she opened her eyes. Nice big blue eyes.
You’d think as bad as she looks she’d be lethargic and out of it but she has a big meow and she can walk.
Hopefully they can save her. If not, we tried.
Awesome, what a pretty little kitty.
Gods work!!!
Did anyone watch this video yet.
Newbomb Turk
Well-Known Member
B.R.E.Demon
Well-Known Member
Darren did the heads on my 16 plug pro stock hemi
Just curious on what it runs at what cubic inch and weight.
B.R.E.Demon
Well-Known Member
I don't know yet we are wrapping the engine up now up in Road Island, Its 430 Ci 15:1 Build with a liberty a833 the aim for the car when done is 2500 lbs dry and wet with driver 2700-2750 the chassis is 2 years out on the build it will be debuted in the Cam Motion Booth at PRI when done
Newbomb Turk
Well-Known Member
Is Cam Motion grinding the cam?? I know for awhile at least they didn't want to grind anything but LS and G3 Hemi stuff.
Unless you are a long time dealer. I used to be but not any more.
Ok thanks. I started reading your post from page one late one night and was tired after 3 pages so I sent it to myself to easy get to. I’m sure I’ll probably have a few questions then. Thanks.
B.R.E.Demon
Well-Known Member
Oh thanks its got through a bunch of iterations and variations I've tried keeping tabs on it but im bad about consistency of posting but this is a full overhaul so im staying on top of things
B.R.E.Demon
Well-Known Member
Yes we did Unfortunately that was an old issues we had to correct but we still make SBC, BBC, Ford and other traditional platforms. I recently got us to bring back in Small Block and Big Block cores so we can do LA, RB and gen 2 Hemi, We got gen 2 round lobes up to 60MM (Thats what im running) and we are looking at carrying Gen 1 Hemi, Magnum, R3 as well. All our stuff is 5150 and up US made billet ground in Baton Rouge LA but we only do roller.
Newbomb Turk
Well-Known Member
Any chance you’ll have LA views with a 4-7-5-2 swap?? Or whatever that firing order is.
B.R.E.Demon
Well-Known Member
Not yet the blank round lobes aren't slated to start production until after the first of the year at which point we can change firing orders to 4/7 6/2 swaps
Just a 1/3 into it so far, but found interesting that 118 cfm per sq inch of valve is max efficiency, so a 1.78" valve should be able to move 293 cfm and a 2.08" 400 cfm obviously with ideal port shape. Technically a 1.78" valve should be able to support 600-700+ hp 
I could be wrong, but here is my interpretation of the 118 cfm/sq in of valve area. That number is the current benchmark for a canted and rotated valve race head. It is not the theoretical maximum flow. The benchmark for a true hemi head would be slightly higher than 118 and the benchmark for a wedge head is slightly over 100 cfm/sq in, say 104.
Nonetheless, I agree with you. I like it when Darin gives these little nuggets for us to chew on.
As a side note, @pittsburghracer is right there at 100 cfm/sq in on the SM heads that he is porting. If the best head porters in the world can only get to 104 on a wedge head (and I'm sure it's not a Mopar), that sort of shows how well he's doing.
Nonetheless, I agree with you. I like it when Darin gives these little nuggets for us to chew on.
As a side note, @pittsburghracer is right there at 100 cfm/sq in on the SM heads that he is porting. If the best head porters in the world can only get to 104 on a wedge head (and I'm sure it's not a Mopar), that sort of shows how well he's doing.
I just went back over the few times he says 118 cfm max sounds like it's just based off valve size to me, where wedge, canted, hemi dictates max valve size for a bore and max capable rpm. Might be harder for wedge since you ideally want the valve .200"-.250" off the wall to lessen/eliminate valve shrouding. Doubt most heads with a 2.055" valve in a 4.03" are that far from the wall?
Darin explains all of this in other videos. A wedge head motor is generally capable of rpms in the 9000-9500 range because the cfm/sq in is limited by the in line valve arrangement. A canted/rotated valve head can support more rpm because it can flow more cfm/sq in of valve area and because the chamber is usually more efficient. The hemi head is capable of the highest cfm/sq in flow, but the chamber design limits it's efficiency.
That’s one of the reasons I use a 4.015 bore adapter for testing even with 2.08 valves. In my head I feel with shortturn shaping you can dictate the direction that most of the airflow is going. Probing the runner for airspeed can back this theory up. Think 3D and check each runner from every angle.
I thought they could support more rpm cause of cross flow, from intake to exhaust.
Sounds like if your getting a 100 cfm + your doing real well.
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