J's 300PS S2000
WHAT IS BLUEPRINTING?
Contrary to its name, blueprinting an engine has nothing to do with big rolls of paper that have strange, blue-colored drawings on them. Blueprinting an engine starts by designing it on paper first. Calculating things like compression ratio, piston pin (compression) height, displacement, and carburetor cfm requirements are all the beginnings of the true blueprinting process. From there it involves properly communicating your needs to the parts manufacturers and to your machinist and finally checking the parts, by hand, to ensure that they all meet your requirements.
Let's say you want a 420hp small-block for your daily driver. You've already got the block, crank, and connecting rods, and you need to know which pistons will give you a true 9:1 compression ratio for pump gas. You also may want to squeeze a little nitrous into it, so you'll need to use a piston/ring package that can take some abuse. And you know that you're going to drive long trips to go to car shows around your state, so it would benefit you to optimize your bearing clearances for the best oiling and power you can get. You can take the easy--and probably less reliable--route by simply purchasing some off-the-shelf parts then assembling your beast gambling that everything is the way it's supposed to be. Or you can take the time to check every component before it goes into the motor. In this story we've given you some of the critical formulas you'll need to calculate your requirements. We've also referenced actual build specifications for things like bearing clearance based on real-world testing and performance.
Contrary to its name, blueprinting an engine has nothing to do with big rolls of paper that have strange, blue-colored drawings on them. Blueprinting an engine starts by designing it on paper first. Calculating things like compression ratio, piston pin (compression) height, displacement, and carburetor cfm requirements are all the beginnings of the true blueprinting process. From there it involves properly communicating your needs to the parts manufacturers and to your machinist and finally checking the parts, by hand, to ensure that they all meet your requirements.
Let's say you want a 420hp small-block for your daily driver. You've already got the block, crank, and connecting rods, and you need to know which pistons will give you a true 9:1 compression ratio for pump gas. You also may want to squeeze a little nitrous into it, so you'll need to use a piston/ring package that can take some abuse. And you know that you're going to drive long trips to go to car shows around your state, so it would benefit you to optimize your bearing clearances for the best oiling and power you can get. You can take the easy--and probably less reliable--route by simply purchasing some off-the-shelf parts then assembling your beast gambling that everything is the way it's supposed to be. Or you can take the time to check every component before it goes into the motor. In this story we've given you some of the critical formulas you'll need to calculate your requirements. We've also referenced actual build specifications for things like bearing clearance based on real-world testing and performance.
basicly ERL blueprinted and Balanced my Short Block. I have a data sheet that gives me every singe spec on the engine. Everything is upto .001 inch of each other. Ring gaps,bearings,bore ect ect ect.
i think we're comparing apples to oranges when comparing engine building between japan and the US. J's doesn't give a crap about how much hp they make, they care that the engine is still running strong at the end of the race. to compare a drag car to a super taikyu car is retarded and has zero relevance to engine building techniques. a drag car is meant to run what...5 times a day? then it's completely tore apart and rebuilt. a super taikyu car has strict guidelines as to what can be done to it modification wise, so you can't just sit there and say that they should be making more power. gt racing in japan is very restricted in hp and modifications, it's all about building as efficient of an engine as possible in super taikyu and it's all about aerodynamics in super gt since all of the engines have hp limits.
show me some of these high hp US motors last as long in extreme conditions like the endurance races in Japan. Opak consistently wins US endurance races with their Spoon built engines, as does King Motorsports with their Mugen backed engines. US is always known for hp, Japan is known for reliability.
show me some of these high hp US motors last as long in extreme conditions like the endurance races in Japan. Opak consistently wins US endurance races with their Spoon built engines, as does King Motorsports with their Mugen backed engines. US is always known for hp, Japan is known for reliability.
Personally, I think eveyone oversimplifies things. My engine is rebuilt in the US and managed by an AEM EMS. I track it. Time will tell how reliable it is and how I treat her. It's also funny that I started a thread late last night in the Mid-A on how it's stupid for folks to say, "You'll gain this much" or "You should see x-amount of hp."
That said, thank you, John(silver j). I received my bar today.
I appreciate the effort to get it to me in a timely manner.
That said, thank you, John(silver j). I received my bar today.
Originally Posted by FF2Skip,Mar 9 2007, 03:17 PM
That said, thank you, John(silver j). I received my bar today.
I appreciate the effort to get it to me in a timely manner. 



