i want to figure out the best way to build a strong motor...some say buy a package deal like the ones off of vivid racing where they offer a block pistons crank shaft rods and what not but some people say its not because its not blue printed....others say buy it one piece at a time block then pistons then crankshaft and rods then bring it to a builder and have him throw it together....which to me seems almost exaclty like buyying a pacakge deal like one that vivid racing offers and wth does blue print mean? i thought blue print meant planning something before it happens sorta like instructions....how you blue print a motor

sounds dumb but you gotta ask to learn right? thanks anyone who actually reads this

 

Hey Hopefully I can illuminate your situation.

Lets start with blueprinting. This is what wikipedia has to say about it.

[edit] Blueprinting
In engine blueprinting, all the specifications are double-checked. Usually this indicates closer-than-factory tolerances, with custom specifications appropriate for a street car or a race car. The goals usually are to:

Ensure the engine puts out the rated power (because not all mass-production engines put out the rated power) for its manufacturer's design
or

Make more power out of a given engine design, by extra careful measurement and assembly
balancing of reciprocating parts and rotating assemblies, to reduce engine vibrations thus achieving more power due to recovery of power "lost" to vibrations
Ideally, blueprinting is performed on components removed from the production line before normal balancing and finishing. If finished components are blueprinted, there is the risk that the further removal of material will weaken the component. However, lightening components is generally an advantage in itself provided balance and adequate strength are both maintained, and more precise machining will in general strengthen a part by removing stress points, so in many cases performance tuners are able to work with finished components.

For example, an engine manufacturer may list a piston ring end-gap specification of 0.003 to 0.005 inches for general use in a consumer automobile application. For an endurance racing engine which runs hot, a "blueprinted" specification of 0.00045 to 0.00050 may be desired. For a drag-racing engine which runs only in short bursts, a tighter 0.00035 to .00040 inch tolerance may be used instead. Thus "Blueprint" can mean tighter or looser clearances, depending on the goal.

So basically all the measurements are double checked and sometimes material removed to make them all the same. Parts i.E. pistons and rods are weighed to get them as close as possible to the same weight. etc...

My reccomendation when it comes to building a motor is to find a reputable shop that specializes in subaru motors and ask them what they think. The factory rods and crank are pretty damn solid You may be best to go with a factory shortblock which can be had really cheap and then throw in some quality pistons and good main and rod bearings while the engine is apart. the money you save buying aftermarket rods and crank wil cover the pistons and bearings and ptobably the labor to install.

Good luck man and I hope my information was useful.

 

that basically answers all of my questions...i probably should have googled it myself i wanted opinions though thank you much!!