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Old 01-04-2017, 11:53 PM   #24 (permalink)
MoulaZ
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Join Date: Jun 2013
Location: Sydney, Australia
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Drives: '09 Z34 BP Turbo V2
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I can also see W2A viable for someone who just treats it as a street car, with the occasional hard boot in it every now and then. But yeah, if you wanna track your car or do more than 1 good drag run every 20 mins W2A seems immediately unviable.

I believe Stillen make you sign a waiver because they're aware of just how little cooling capacity the W2A system is capable of, in addition to the whole CARB thing. We see plenty of Turbo kits putting down more power than SC guys, and those seem reasonably reliable, if not intentionally pushing the envelope for some obscence power figure.

Up until recently, I couldn't understand why SC kits were just putting out lower numbers compared to Turbo kits, but if that conclusion I've come to above is really all the reason, heat, then provided you tackle that issue should we be able to match the Turbo guys? Compressed Air is Compressed Air, whether it comes from a Turbo, or Supercharger. Comes down to CFM & Temp, we have the CFM, now it's Temp we have to figure out an effective control. Your kit goes a LONG way to doing that, and keeping it reasonably reliable.

Cheers,
MoulaZ

Quote:
Originally Posted by TopgunZ View Post
The one and only advantage the water system has is for the 1/4 mile so that you can dump ice in your system and drop temps below ambient. Again, this would be the only time this would actually be an advantage and would be pointless on any other track or street since the ice will be gone in a minute.

Not to mention that it is a pain in the arse though.

MoulaZ. Your paragraph above really does sum it all up. However, I think that even one of those is still too much heat for longevity of the engine. Why does Stillen make you sign a waiver that voids your warranty to the engine when you order the 9psi pulley?? Because they know it throws reliability to it out the window from too much heat in the system. Basically saying that they don't have confidence it will last 30K miles.
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