New: Edelbrock Splayed Valve Head
#44
but thats going to be a hell of a engine and i would think some big rpms to use those cfm readings will be needed-
we also need to know how good the intake is going to be from edelbrock from these heads-
#46
i would rather talk about air speed and csa and learn something new-
i know one thing-cfm numbers sells head products-
i see it all day long-
it also comes down on who is doing heads and if they are honest or not-
#47
your right, ive seen people waste an assload of money on cylinder heads just based on flow numbers and not this street stuff more like $6k + on a set of heads alone but either way thats a different matter.
#48
Race your car!
iTrader: (50)
I figure these heads, with the porting, titanium valves, triple solid roller springs and teh rocker arms, plus the port matched intake will be about 9500 bucks.
But, put that on a 440 ci lsx bottom end that you spend 15 grand on with a dry sump, billet crank, alum rods and the like, and you should be able to make enough power to run 8.50 n/a with a motor that was built to take a 400 hit of nitrous, and on the jug, it should be a 7 second setup.
Want to play, you're gonna pay.
But, put that on a 440 ci lsx bottom end that you spend 15 grand on with a dry sump, billet crank, alum rods and the like, and you should be able to make enough power to run 8.50 n/a with a motor that was built to take a 400 hit of nitrous, and on the jug, it should be a 7 second setup.
Want to play, you're gonna pay.
#51
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I figure these heads, with the porting, titanium valves, triple solid roller springs and teh rocker arms, plus the port matched intake will be about 9500 bucks.
But, put that on a 440 ci lsx bottom end that you spend 15 grand on with a dry sump, billet crank, alum rods and the like, and you should be able to make enough power to run 8.50 n/a with a motor that was built to take a 400 hit of nitrous, and on the jug, it should be a 7 second setup.
Want to play, you're gonna pay.
But, put that on a 440 ci lsx bottom end that you spend 15 grand on with a dry sump, billet crank, alum rods and the like, and you should be able to make enough power to run 8.50 n/a with a motor that was built to take a 400 hit of nitrous, and on the jug, it should be a 7 second setup.
Want to play, you're gonna pay.
We are at that point now with heads 50 numbers less. As someone points out the numbers don't always equal horsepower. We have run 8.59 at 3150 pounds. The new heads should be good for a couple of tenths over that.
I don't see any reason those heads would not lke Nitrous. What am I missing here?
Robin
Last edited by Robin L; 12-17-2008 at 08:21 AM.
#54
Race your car!
iTrader: (50)
Reduced valve angle does tend to need less timing yes, but I'm @ 21 degrees on a 150 hit and could go more as it is with an 11 degree head, tuneup is still safe, probably coudl get away with 24 and still be safe.
These will require a little less I agree, I think a car running a 600 hit will probably be at 2 or 3 degrees total timing, but if these flow like they do, 1000 hp should be possible n/a, and I don't think that anyone's gonna be trying to put enough nitrous to one of these and think that they can double that output.
A nitrous engine, for all intensive purposes is about maxed out doubling the n/a HP, I know that is a genaral statement, but I think it's relativly close in most cases (a 500 hp motor can take about 500 worth and that's it you can't put any more to it)
These will require a little less I agree, I think a car running a 600 hit will probably be at 2 or 3 degrees total timing, but if these flow like they do, 1000 hp should be possible n/a, and I don't think that anyone's gonna be trying to put enough nitrous to one of these and think that they can double that output.
A nitrous engine, for all intensive purposes is about maxed out doubling the n/a HP, I know that is a genaral statement, but I think it's relativly close in most cases (a 500 hp motor can take about 500 worth and that's it you can't put any more to it)
#59
It looks like the nominal bore diameter using 2.200"/1.600" valves will be 4.00". It also appears this head has the flexability to support a variety of configurations.
I also like the cast water bosses near the deck under the exhaust ports. Controlling coolant flow especially in N2O applications will be important and having a boss to tap into will make it much easier to regulate.
Richard
I also like the cast water bosses near the deck under the exhaust ports. Controlling coolant flow especially in N2O applications will be important and having a boss to tap into will make it much easier to regulate.
Richard
#60
It looks like the nominal bore diameter using 2.200"/1.600" valves will be 4.00". It also appears this head has the flexability to support a variety of configurations.
I also like the cast water bosses near the deck under the exhaust ports. Controlling coolant flow especially in N2O applications will be important and having a boss to tap into will make it much easier to regulate.
Richard
I also like the cast water bosses near the deck under the exhaust ports. Controlling coolant flow especially in N2O applications will be important and having a boss to tap into will make it much easier to regulate.
Richard
it comes out raw?