Naturally Aspirated means the engine pulls air in on its own. That's most engines. Cars with turbochargers or superchargers are unnaturally aspirated, the turbo or supercharger pushes more air into the engine than it would take in normally.
I can't really separate the mods into stages for you, but the mods that you're asking about include:
Cams, headers, head gasket, rods, pistons, valves, springs, pulleys, cam gears, fuel injectors, fuel pump, ignition timing, spark plugs, wiring, and maybe a new throttle body.
I would assume that Stage 1 would be something like...headers and spark plugs and wires. And a Stage 4 would probably involve everything up to the pistons and rods.
While I have no idea regarding the origins of 'stages', based on common sense they're more for idenifying which parts have been added (ignition control, boost control), upgraded (turbo, clutch, cams), or removed (weight savings), giving a major time-saving advantage for the manufactures because there's so much work to be done to get to your destination. By providing the exact steps listed in each 'stage' as pitstops, if your car ever has problems post that particular modification, then it saves a lot of mechanic's time to search for replacement parts. That's my humble speculation anyway.
You sees there are too many "wannabe ricers" (to young to drive right now) at my school, but when I'm older I'm going to teach them all a lesson the proper way. I'll give them an educational talk on how to tune their cars the proper way rather than the ricer way! Maybe...
Definitely, but as for the "Stage 4 N/A" and "Stage 4 Turbo" on top of that....I don't think that's a good idea. You wouldn't want an ultra-high compression ratio(from new pistons and a head gasket) PLUS super-compressed air being forced into your engine. It's possible, but not a good idea for the average road racer. You'd end up blowing your engine unless you tuned everything VERY carefully. You'd probably get like 3mpg too.
Err.. it wont work unless ur engine is re-enforced ALOT. but N/A = high compression pistols and is easier to get a smoother powerband. An example is the S2000 engine. Its tuned N/A wise but not hardcore, which is why there are turbo kits avaiable for it.
But if u do go hardcore N/A, u shouldnt put a turbo. But meh... I probably would haha..
this gives me an idea
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