Quote:
Originally Posted by NG329
Noted. Thanks.
The X port sounds nice. I vaguely recall someone saying that the regular porting would be the better option vs the X port unless you were going for big power. Would you still recommend the X-port on a stock-ish car?
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This thing with the X port is that you will trade some bottom end for more power up top. You will basically see +3psi more boost at peak and less on the hit. The nice thing about that is it's easier on the tires and I would think it should help on the road course. So you gain power on the top without increasing heat. It also allows the fuel system to go further since the massive torque spike is reduced which often tends to bleed the fuel rails and then the fuel system plays to catch up. I honestly think if anybody sticks with the stock blower porting is mandatory before doing pulleys.
I have tuned a few X port bolt-on cars and they ran mid 6 second 60-130 on E50. Full weight street cars on stock wheels. My guess is low 6 with drag pack and some minor WR. I was impressed with how they ran. Power is consistently there after back to back pulls.