Originally Posted by Ataru074

but you have to admit that isn't easy to find out what works and what doesn't.
not so many people have done that kind of job and actually even tested the reliability of the system (that is quite critical if you track the car).

because one thing is 3 or 4 dyno pull with the engine temperature stable... one thing is driving the **** out of the car on a road course starting with the engine mildly warm and ending up really hot, with all the associated changes in a/f, air density, timing adjustment to avoid knock and so on...

I agree that on a stock engine is pointless going with extreme cams or pure "competition cams" unless they are ground just to run on a stock block, with stock pistons and stock heads...

bottom line or you get the right information before starting the work.. or you'll spend way more money than buying immediately a newer and more powerful car.

you cannot beat the factory or the factory official racing team (if there is a class involving that car and that engine)

Originally Posted by Z1 Performance

I do agree though that it can be sometimes difficult to make the right choices, but at this point, there are a few of us with full revup and non revup builds to go by. Some cursory research in those threads will yield a wealth of information, and certainly enough to make a truly educated decision from.

Originally Posted by Z1 Performance

I'd respectfully disagree to a certain extent, and here is why

You're not dealing with joe-blow's cam company. Tomei has a reputation that dates back to when the S30 was a new car. Their experience speaks for itself, as does the quality of the product. If this were some flybynight firm touting their cams as the second coming, that would be one thing. This is one instance where taking the quality and performance of the product as a given, is a good way to go

I do agree though that it can be sometimes difficult to make the right choices, but at this point, there are a few of us with full revup and non revup builds to go by. Some cursory research in those threads will yield a wealth of information, and certainly enough to make a truly educated decision from.

Originally Posted by Z1 Performance

yes stock valves are fine

true, there are no built HR's, but there are built revups and built DE's - the basic architecture of the engine has been consistant, so it's fairly easy to draw reasonable conclusions

Originally Posted by warmmilk

thats part of his point, if you're gonna get cams that aggresive, you should do more work to the engine to see their full benefit, otherwise your results could be really disappointing

Originally Posted by Z1 Performance

yes stock valves are fine

Originally Posted by biggersNISMO

warmmilk, do you think the Stillen headers i already have on my car are enough to handle the aggressive 272/10.8 cams? Or would it be wise to get someone to make some custom headers instead?

Originally Posted by biggersNISMO

warmmilk, do you think the Stillen headers i already have on my car are enough to handle the aggressive 272/10.8 cams? Or would it be wise to get someone to make some custom headers instead?

Originally Posted by Ataru074

you missed my point.. tomei IS the cam company for the Z.. period, I agree.
I was just "reinforcing" the concept that a "full race spec" cam isn't the best choice for a pretty stock engine.
you guys got some experiencing building your car... no doubt about that.
but at the end you cannot validate or not engine configurations different from yours.
where the factory, and mainly factory or factory sponsored racing team are unbeatable is the reasearch...
so if tomei says that 264 cams are better fit for a pretty much stock engine, it is.

Originally Posted by Z1 Performance

I'm with ya then

here is my summarized take on it all

if you're looking for more of a high end NA setup, without building a bottom end, the 272 would be a nice choice. With the right header (I can't say if stillen fits the bill or not as I don't really know anything about it), and the right state of tune, coupled with headwork, it would be, without question, a killer setup that would dwarf my car (IMHO). But for the guy who wants to do the cams, without having to invest the big dollars into the headwork, the 264 would be my suggestion, as it will give you the best of all worlds