An excerpt from my forum
These puppies are amazing! Look at that odd valve train and weird coatings on the valves..
If you look close you'll even see valve stem seals, something thats unheard of today but made possible by the friction reduction properties of the DLC coatings that you can see here. http://www.aircooledtechnology.com/coatings_2.htm
Its being assembled starting tomorrow and will be dynoed in the next two weeks....
Look here for more detailed pics
http://www.aircooledtechnology.com/r_d_hybrid.htm
These puppies are the next level of TIV development, all the best ideas from all the basic TIV head designs ever produced all compiled into one unit....
These heads are KICK ASS! Len out did himself on the work! Lookin to put this 2316 in the "200 club" on pump gas as a daily driver.
"Excellence through Research"
picture 070 looks a little scary, not a good "promo" shot
I really like the exhaust ports, especially the extra room for the headers and lots of mating material.
Well done.
How do they flow?
rich
Whats wrong with pic #70??
The port is shaped that way for a reason..
If you are talking about the valve guide scratch, its very small the camera just blows it way up..
The first time you do anything like this is a total learning curve anyway- Who gives a damn what they look like!
There is a TON of labor in these- its a wonder they don't have more scratches than that! The valve seats were swapped 3 times trying to find the perfect profile, guides were swapped 2-3 times to change profiles for flow impact comparison too...
QUOTE |
If you are talking about the valve guide scratch, its very small the camera just blows it way up |
Detailed prices soon........
The prices are not that bad and may get better if we do more of them and the welding processes can be streamlined for more than one set of heads at a time.
These particular heads were not cheap though.... The DLC coating alone was ELEVEN HUNDRED bucks!
I'm touching myself
Mmmmm.......gearhead porn
Dam!!! Can't wait to see the dyno results!
Neither can I!
The other test for this puppy is a special Top piston ring and NO second ring at all!
Nice work Len and Jake. Too bad the plug is pointed in the wrong direction. But that is something that would require much more work.
I assume that you are using a certian ring from a certian company that sells a lot of Hype? doubt you will see much as far as gains on a street motor. It may even burn too much oil for the street. Most of the people I know using 2 ring pistons are running vaccum systems and not a top ring from the company that I am thinking about. Even the pros that run the rings from this company don't even run the same type of rings that this company sells to the average joe.
I understand the need to develop a solution that does not require hard to aquire parts. But some of the work described is to bring the head to "2.0" specs. Would 2.0 heads be appropriate cores to start with, or do these heads have advantages over 2.0 cores?
Eric
Brett,
The rings are something we are trying with Nickies for the first time.
We are trying it on our own, no hype from a salesperson..
As for the plug being pointed the wrong direction: That means Porsche did it wrong too, but its still good enough for us to see an 8-10% power gain as a general rule on the dyno across the board, especially down low.
There is no such thing as a perfect engine, trying to create one is the first mustake that can be made.
BTW- The heads that WERE on this engine were of 2.0 914 flavor.
The flow numbers on these heads surpass those of the most worked over 2.0 heads on the exhaust side and the intakes were worked to the "Magical numbers"...
QUOTE |
The rings are something we are trying with Nickies for the first time. We are trying it on our own, no hype from a salesperson.. As for the plug being pointed the wrong direction: That means Porsche did it wrong too, but its still good enough for us to see an 8-10% power gain as a general ruleon the dyno across the board, especially down low. There is no such thing as a perfect engine, trying to create one is the first mustake that can be made. |
QUOTE |
Nice work Len and Jake. Too bad the plug is pointed in the wrong direction. But that is something that would require much more work. |
Jake,
Can you get the AMC heads bare, no seats or guides?
Don't think so...
Removing the guides and seats is easy
Nope...
I have 3 gallon buckets full of their marginal valves and springs and other crap..
No sense in paying for labor and parts for un-necessary items, especially if I have to take them out anyways.
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