Billet Aluminum Cylinder head

How many people really need 4140 blocks? Maybe more necessary is you had a head capable of moving enough air:charger:
 
SPEAKSUP said:
Don't tell Scheid they will lose more buisness :hehe:
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Gonna be hard for them to lose money since they are about to be releasing the CGI blocks in the near future once they are out of the beta stage.


Sure would be nice if we had a real flowing head for these 6.7's.
 
TMONEYDIESEL said:
Gonna be hard for them to lose money since they are about to be releasing the CGI blocks in the near future once they are out of the beta stage.


Sure would be nice if we had a real flowing head for these 6.7's.
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IIRC CGI cummins blocks have been out for a little while already.
 
Correct! Schieds won't be releasing there's to the general public for another year or 2. But will be a great option for those who want a stronger block when they do.
 
Well I am....... :hehe: that was the whole point of the #83 post. I know the CGI blocks have been running in SP for awhile now, I was just posting that the scheid crew will be offering there's soon. :)
 
TMONEYDIESEL said:
Gonna be hard for them to lose money since they are about to be releasing the CGI blocks in the near future once they are out of the beta stage.


Sure would be nice if we had a real flowing head for these 6.7's.
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I was just a jab at them cause when the Billet Blocks first came out they got pissed. Well if you had dudes come to you every week just for long blocks in the Mod class. Your going to lose out on some money.
 
In reality, the diesel engine has a combustion pressure spike higher than any Top Fuel engine. The Top fuel engine has 325 bar peak pressure or 4800 psi The Top Alcohol engine is a few thousand higher than that. But the diesel is king of peak cylinder pressure.
The reason that a fuel motor makes incredible power is that it makes cylinder pressure until the exhaust valve is open.

So Wade when did you get access to a cylinder pressure data logger.

As to $10,000 for a head, that wouldn’t get you far in any heads up class a pair of DRCE3 Pro Stock heads are about $40,000. if you going to get competitive with any engine program, the head is the most important part . I see Cummins heads that are close to $7,500 as commons if you want the best from a stock casting , with a competitive manifold.
As to a billet aluminum head on a 12 valve ,it’s legality in classes is such that its wide open, and why even make it look like a stock head . if you going to do a CNC head and go to the trouble it would be a lot wilder , and flow 450 to 500 cfm on a 4.250 bore


I mean if you going to go long, go for the in zone , if you are going to build a head that isn’t legal for but a few classes , and the rules in those classes only limit it to 2 valves , it would, no more expensive.



Also that head can be bought now at INDY cylinder heads

INDY CYLINDER
 
COMP461 said:
In reality, the diesel engine has a combustion pressure spike higher than any Top Fuel engine. The Top fuel engine has 325 bar peak pressure or 4800 psi The Top Alcohol engine is a few thousand higher than that. But the diesel is king of peak cylinder pressure.
The reason that a fuel motor makes incredible power is that it makes cylinder pressure until the exhaust valve is open.

So Wade when did you get access to a cylinder pressure data logger.

As to $10,000 for a head, that wouldn’t get you far in any heads up class a pair of DRCE3 Pro Stock heads are about $40,000. if you going to get competitive with any engine program, the head is the most important part . I see Cummins heads that are close to $7,500 as commons if you want the best from a stock casting , with a competitive manifold.
As to a billet aluminum head on a 12 valve ,it’s legality in classes is such that its wide open, and why even make it look like a stock head . if you going to do a CNC head and go to the trouble it would be a lot wilder , and flow 450 to 500 cfm on a 4.250 bore


I mean if you going to go long, go for the in zone , if you are going to build a head that isn’t legal for but a few classes , and the rules in those classes only limit it to 2 valves , it would, no more expensive.



Also that head can be bought now at INDY cylinder heads

INDY CYLINDER
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Greg, once again you full of crap!

Top fuel cylinder psi is way higher than ANY diesel comparison. (Appox 10,000Psi) If you want to compare anything to gas racing compare it to Pro mod,(5500-6500psi) that's about as close as the highest diesel's have gone.

See, HP is a close function of cylinder psi, but in out case TQ is even closer, so with that said the biggest and baddest Diesel's make between 2500 and 3000ftlbs of TQ.

Guess what, The baddest pro mods are also making the same TQ, but 2-3 times the HP we are, Why you ask? Because TQ x RPM = HP , but im sure you knew that allready.

To answer you other question, cylinder psi guages.......Hummmmm


Yea i know what that is......And so does everyone else, no one is as dumb as you think they are.

I've spent the last 15 years around some of the best engine builders in the nation, and guess what greg they all do cylinder psi testing and i have seen what most engines put out for cylinder psi. Sonny, charlie buck, mike shelton, Mark mckowen, jim yates, james cox, Terry samakow, and many others from this area, all know this is an important part of R&D if you want to offer the best.

But yet i've also seen some Diesel engine testing done, you would laugh if you really knew how low Diesel ignition cylinder psi really is......and i've seen 700hp to about 1500 hp, and the difference is very minor, useally less than 1000 PSI. (3500-4500PSI is the norm) but that's on correctly tuned engines as well, im sure there can be some varyance, but not much.

Accually Pro stock engines only make about 3500 Cylinder psi.

Much Data comes from Accually testing Greg, you may want to Try witnessing/Performing:)hehe:) Real life data, before you speculate.
 
Listen goof ball, they don’t use gages, it take a ultra expensive piezo sensor. Listen bud, you know that we know the truth, so quite blowing smoke, when your evidently so far over your head. I have looked at cylinder pressure data logs on many types of engines, and your,,,, more than likely been closer then dreaming about that type of data logger .

Keep it up and I’ll dig a few out and print them on this thread.
 
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http://www.precisionenginetech.com/tech-explained/2009/05/22/top-fuel-rings-bearings/

Greg if you can read this tell me what it says AFTER you re-read all my prior post's.......:bang


Right about when you get to this part. You'll feel even dumber...

"Cylinder pressures are incredibly high, as much as 12,000 to 13,000 PSI (when detonation takes place, cylinder pressure is in the 16,000 PSI range). To put that into perspective, a Pro Stock engine may generate around 4,000 PSI of cylinder pressure"

Greg, be Thankful for something! After all it is Thanksgiving day!
 
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See, HP is a close function of cylinder psi, but in out case TQ is even closer, so with that said the biggest and baddest Diesel's make between 2500 and 3000ftlbs of TQ.


a 1100 hp superfarm will make over 3000 ftlbs prostock over 4000ftlbs diesel super stock alittle more than that. top fuel would make around 5500 ftlbs at 8000 hp if they made peak hp at 7500. I know they turn around 8500 but dont know where peak is made.
 
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