428fe, or 427fe, which one do you prefer? Please no other engines, thanks.

[AL427SBF]

It's all relative Brent. Take the same quality of build and materials on those motors and apply it to a shorter stroke engine and it will out rev them every time. Take that to "Barry" and see what he says

"An over-square engine configuration is ideal for high-rpm horsepower--it's how Formula 1 engines rev to seemingly impossible plateaus of 13,000-plus rpm--because the shorter stroke minimizes the maximum piston speed. That reduces power-robbing friction and heat, while also reducing stress on the crankshaft."

Pretty standard comment when you start looking at what's out there on the subject.
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[blykins]

Again, sir, let me explain your own statements to you, since you are incapable of understanding them.

Most racing sanctions have rules. They are limited by displacement, either by the bore or by the stroke. Think Formula 1. Think NASCAR (358 ci rules).

When you are limited by displacement, then you *have* to turn the rpms WAY up to make horsepower. That's why Cup engines have to turn 9800 rpm. That's why F1 cars have to turn 12000-13000. When you only have bore and stroke to work with, then of course you make the bores large to help with head flow. When you don't have displacement rules, then you make both big.

Another reason for the short stroke on the Cup engines and F1 engines is because it's easier on parts. A smaller crank is going to be easier on bearings, and a short stroke will be easier on the pistons/rings/etc. because the piston travels a shorter distance. When you're racing for hours at a time, for 100's of miles, sometimes you do things for longevity. When you're drag racing, then you see what MAJOR race shops do.....add lots and lots of stroke.

You are incorrect in pretty much every statement you make. Of course you don't intend to be, you just don't understand things. That's why you cut and paste from Wikipedia and I go out and look at dyno sheets.



Have a nice night. I'm gonna shake the dust from my feet on this one.

[AL427SBF]

Originally Posted by blykins

...Have a nice night. I'm gonna shake the dust from my feet on this one.

On your way out, tell Barry he was misinformed if he thought this was about "big stroke engines rev slow", think of it as rev them until failure, which one will fail first given equal $$ invested in two motors with same CID but different strokes.
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[blykins]

Originally Posted by AL427SBF

On your way out, tell Barry he was misinformed if he thought this was about "big stroke engines rev slow", think of it as rev them until failure, which one will fail first given equal $$ invested in two motors with same CID but different strokes.
.

Really stinks when you have to grasp for straws doesn't it?

[AL427SBF]

Originally Posted by blykins

Really stinks when you have to grasp for straws doesn't it?

Peace, understanding the forces involved in a rotating mass is not for everyone.
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[blykins]

I know. Come back when you get it.