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The irony is that the context of the "vote" comment by Lenin was being sure that he and his cronies were in charge of the counting -- so they could create any outcome they wanted. Ah - democracy in action. Clearer than ever, humans are just another animal on the planet. A bit smarter. A bit more refined. But not by much.....

Stock LS3 heads flow about 315cfm on the intake, 225 exhaust if you get the lift up around .700". With a bit of work, those numbers go to 380/260. The difference is -- 1) about 60 lbs. of weight AL vs. cast iron; 2) they flow that with much smaller ports than the old Cleveland heads. That smaller port provides for much better flow velocity especially at the lower rpm we commonly see on the street. Pretty common to see the Cleveland heads (and intakes) with a good bit of epoxy filling in the bottom of the port to force the flow upward in the port and minimize the turn it has to make at the valve. The ability to model what's actually going on flow-wise and design accordingly has come light years ahead. Fact is - Ford, Chevy, Chrysler, AMC, Toyota 2TC - they're all pushrod, crossflow OHV heads. If the bore and stroke are similar and you have to allow room for pushrods -- and with similar displacements the bores and strokes are close -- there's only so much real estate to play with when it comes to port layout. That's why a good head from one manufacturer looks pretty much like a good head from another manufacturer. From a performance perspective, the main advantage of over head cams is -- there's no pushrod real estate needed that limits port size/layout. And, as we've all learned I think, if you're building a race motor -- you're really only interested in what happens from 5-10k rpm (if you've got those revs in you). Below 5k is only needed to get the damned thing on and off the trailer. Street engine refinement is an entirely different beast --- much, much, much harder to get right particularly when you factor in emissions and fuel efficiency.

The motors that amaze me are the non-restricted NASCAR motors. From all 3 manufacturers (Ford, Chevy, Toyota). They routinely see 9000-9500 rpm for 500-600 miles at a time. I'm contrasting that with these guys saying they're changing valve springs every few passes. No doubt -- the most stressed part of the whole motor at rpm like that are the valve springs. A breakthrough there would revel the next weak link!
 

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I bet that NASCAR engines look a lot like that 10k+ 400CI engine linked above, internally. They will have super short pistons, super light everything, the beehive springs, and I gather they finally got roller lifters like that engine has. Those lifters run $2000+ alone.

FYI, there's a stock racing class still, where a Cleveland is among the best, where no porting is allowed. They are gaining 75cfm and more from altering the valve surfaces, edges, the valve seats etc. I saw flow numbers around 345cfm from that one builder, a big name among the stock classes, where their lift is also limited, to about .500" or so.

All heads need a little work in the valve bowls. I'd say if you were going to copy an old best design that was so old no patents were an issue, you would optimize the bowl shapes during the development. So the LS engines have ports made the way Ford should have corrected the Cleveland heads in the late 70's, if they didn't kill it in 1974. Every other SBF head Ford made is low flow low performance. Only the aftermarket has kept them(302 and 351W) viable for anything but a pedestrian automobile. I like Fords, but I don't "drink the Koolaid." I keep an open mind, unlike politicians.
 

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The irony is that the context of the "vote" comment by Lenin was being sure that he and his cronies were in charge of the counting -- so they could create any outcome they wanted. Ah - democracy in action. Clearer than ever, humans are just another animal on the planet. A bit smarter. A bit more refined. But not by much.....

Stock LS3 heads flow about 315cfm on the intake, 225 exhaust if you get the lift up around .700". With a bit of work, those numbers go to 380/260. The difference is -- 1) about 60 lbs. of weight AL vs. cast iron; 2) they flow that with much smaller ports than the old Cleveland heads. That smaller port provides for much better flow velocity especially at the lower rpm we commonly see on the street. Pretty common to see the Cleveland heads (and intakes) with a good bit of epoxy filling in the bottom of the port to force the flow upward in the port and minimize the turn it has to make at the valve. The ability to model what's actually going on flow-wise and design accordingly has come light years ahead. Fact is - Ford, Chevy, Chrysler, AMC, Toyota 2TC - they're all pushrod, crossflow OHV heads. If the bore and stroke are similar and you have to allow room for pushrods -- and with similar displacements the bores and strokes are close -- there's only so much real estate to play with when it comes to port layout. That's why a good head from one manufacturer looks pretty much like a good head from another manufacturer. From a performance perspective, the main advantage of over head cams is -- there's no pushrod real estate needed that limits port size/layout. And, as we've all learned I think, if you're building a race motor -- you're really only interested in what happens from 5-10k rpm (if you've got those revs in you). Below 5k is only needed to get the damned thing on and off the trailer. Street engine refinement is an entirely different beast --- much, much, much harder to get right particularly when you factor in emissions and fuel efficiency.

The motors that amaze me are the non-restricted NASCAR motors. From all 3 manufacturers (Ford, Chevy, Toyota). They routinely see 9000-9500 rpm for 500-600 miles at a time. I'm contrasting that with these guys saying they're changing valve springs every few passes. No doubt -- the most stressed part of the whole motor at rpm like that are the valve springs. A breakthrough there would revel the next weak link!
That split head rotary valve setup would be the ticket. Of course you pretty limited on that setup.
 

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However we are sitting on the largest free standing army in the world. If they were truly scared earlier this year I would fathom it pales against what could happen.

Sent from my Pixel 4 XL using Tapatalk
 

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I suspect we're headed towards some sort of showdown, be it big or small, where some faction of the military is going to have to decide if they will take action against their fellow citizens. It will be interesting to see where that shakes out.
 

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Are you guys speaking about a riot, or something actually serious? I don't see anyone or any group resisting government laws and getting away with it. It's sad and I have been avoiding watching any government news. I see just a little, just enough to hear bits of what latest evil plans are being pushed, and I mute it or change it.
 
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Without going into detail Don - there are multiple red states in the process of passing laws that basically call for ignoring federal mandates. The constitutionality of it all will keep the lawyers in nice houses for decades -- but given the fundamental divide between many of our citizens, I think armed conflict is bound to occur. Believe TX to be the most likely candidate given how directly impacted they are by the border fiasco. I was not referring to riots --- almost all of those seem to be started by the left and are basically ignored by local law enforcement.
 

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Made a B+ in statistics and an A+ in critical thinking. Final project in critical thinking was an argumentative essay on the failures of gun control and alternatives that work much better.
Made a 100 on that. My university is in sane Francisco. Professor lives the paper and loved the alternatives I came up with. Go figure. I love throwing data into arguments like that. 25 years of arguing with people on forums has come in handy after all lol.
 

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Nice job Richard!

My prediction - just as Reagan used military buildup to spend the USSR into failure, I think CCP will use climate change to cause US to spend/borrow itself into a hole from which we can’t extract ourselves.
 
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I don't think China is that big of a threat at the moment, our current Spender in Chief with his socialist supporters(the Congress), they are happily spending us into death/debt. We were at just over $20T before last year, I think I heard with the spending now and pending etc, it's over $30T now. We are already over the edge where it would take a budget cut of a massive size, say 40% or more, per year and every year, to dig out of the current hole. It's a shame an idiot has to learn by full bottoming out failure, to change their thinking. This will take a while before it stops, and that's where the military will be used to maintain order.

I saw some of the states working on laws to protect their citizens from some evil mandates(like the vaccine punishment). That's about our best hope to protect us, the Supreme Court has already proven to be useless at upholding the Constitution.

Ultimately the Supreme Court is the only thing which could stop the socialism. They have exactly the needed highest authority to stop everything the Congress and POTUS are doing, and it is their entire job, to interpret and enforce the Constitution.
 

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SCOTUS - that’s precisely why the Dems will stack the court Don....increase size from 9 to 13 and appoint 4 liberal and young (lifetime appointment). Boom - SCOTUS useless. CCP is actively supporting our demise from within.
 

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I agree, China is overall our greatest enemy, because they are communist(socialist). But it's very sad that we have our own socialists here who have risen to power, and are as stupid as any dictators who have ever lived. They do not comprehend the misery socialism creates, and the assured failure of the country because of it. Our own leaders are destroying us, the CCP is just helping as much as they can.
 

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Sold out Waverunner yesterday. We decided we liked camping better than the lake. Made $1000 over purchase price from last summer and that’s with adding 20 hours to it. The demand for watercraft (and campers) is still through the roof, with most dealers not even having units on the sales floor to sell.
 
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Sold out Waverunner yesterday. We decided we liked camping better than the lake. Made $1000 over purchase price from last summer and that’s with adding 20 hours to it. The demand for watercraft (and campers) is still through the roof, with most dealers not even having units on the sales floor to sell.
Noticed the same with new motorcycles. The dealers are empty and used ones are higher than new ones you can't get,lol.
I can make a few hundred on my 2019 DRZ400 right now, tempting.
 

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Noticed the same with new motorcycles. The dealers are empty and used ones are higher than new ones you can't get,lol.
I can make a few hundred on my 2019 DRZ400 right now, tempting.
The supply of any power sports and or outside activity is non existent.

Camper Sales were up 85% last year. 85%. Hard to imagine having to deal with that kind of growth.
 
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Same dynamic at work for a lot of cars --- new inventory down (supply chain problems per pandemic), used car prices up, way up.
 
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Ditto, there are big shortages in most things. It's even affecting the stock market making stocks go down while their "sales" and projections are all up. The flu scare has had a huge impact on everything, and it continues still.

I went into my bank today, with my mask in my hand. There's no longer a useless guard at the door now, and three people out of about ten customers, had their masks down below their noses. I was wary but kept my mask in my hand, waiting and during my visit with a person to do a notary signature. I'm really tired of everyone else being afraid to be free.
 

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Right there with you Don. I only wear a mask at work when I must and i am not in the lab or my office solo. It’s so asinine. At Lowe’s or grocery store I and many others are bare faced and PROUD TO BE FREE.

I don’t think it will come to freedom seeding by lead in an armed revolt. I think Americans are dummed down into stupors and glues to their free potato chips and dancing w stars to care.
 

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If enough Americans stay that way Chris, they're gonna need to brush up on their Mandarin....
 

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Indeed.
 
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