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Old 09-18-2012, 01:37 PM   #50
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Join Date: Feb 2001
Location: Dublin, CA
2002 WRX Sedan
Midnight Black


Originally Posted by WhatTurboLag? View Post
in a road racing application its not really necessary anyway.
I think in a drag racing scenario it's not really necessary, but road racing? I hang out with autocrossing Evo guys a lot and when they talk about Evo 8 vs. 9 (Evo 8 = no MIVEC / Evo 9 = MIVEC) they talk about smoothness of throttle on corner exit and better able to control the car because the turbo comes on so much smoother with MIVEC. They all drive each other's cars to see how different mods affect their driving performance and they all have the same tuner (me).

I admit that's autocross, but I'd think smoothness of throttle would be a pretty big benefit to control in a corner. Big turbo + no AVCS = big torque surge on spool, and you'd generally want a smoother torque increase during spool.

Just because you're above the boost threshold doesn't mean you don't notice the turbo spooling either. How quickly and how smoothly the boost / torque comes back is important. It's a little mind blowing that anyone would actually want to delete AVCS unless it was a trailered drag car.
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Last edited by Concillian; 09-18-2012 at 04:31 PM.
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