Quote:
Originally Posted by gahooligan
So now that the most awesome Matt at Cosworth got me running with the kit on my 2017 BRZ, i am curious what your impressions of the smaller pully are. Is it enough of a noticable difference to take the extra risk on the rod loading? Love the kit, But I am always interested a little more power.
For the record, I owe Matt a million thanks! You are an awesome dude Matt!
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The smaller pulley gives a nice little bump in power. It is not a massive gain but levels it out a bit when racing against turbo kitted cars at around 10 PSI. My engine has been blueprinted and balanced whilst being rebuilt under warranty some years ago, and my valve springs have been shimmed etc, so I am not running a factory built engine per se. I have also just switched to Delicious Flex tune, and the car feels great on E85. Now I need to get it on a dyno to see how much has been gained. I am more concerned about the auto box not being able to keep up at this stage haha.