# ATT. Keyboard Racers what Pittspeed Grudge Match are you most interested in Next Year **URL:** \ **Category:** PittSpeed Off Topic\ **Created:** [November 29, 2006, 10:02pm UTC](https://forums.speedlife.net/t/att-keyboard-racers-what-pittspeed-grudge-match-are-you-most-interested-in-next-year/186509 "2006-11-29T22:02:05Z")\ **Posts on this page:** 1\ **Showing post:** 158
**Author:** ![T70\_Tsi](https://avatars.discourse-cdn.com/v4/letter/t/898d66/32.png) [@T70\_Tsi](https://forums.speedlife.net/u/T70_Tsi)\ **Post date:** [December 7, 2006, 8:45am UTC](https://forums.speedlife.net/t/att-keyboard-racers-what-pittspeed-grudge-match-are-you-most-interested-in-next-year/186509/158 "2006-12-07T08:45:46Z")
> [@Hottest Acura Ever?](https://forums.speedlife.net/t/hottest-acura-ever/26330/32): > > first off, a pulley doesn not change displacment, the arrgument ppl bring forward is, say a cobra, has a 4.6, and the s/c is a 2.2 soo that then makes a 6.8 motor, but i dont really belive that theory tho. no body ever said changin a pulley will add displacemnt, mr. know it all u should konw that a pulley change will just spin the screws faster thats all. i never knew a change of pulley would add more cubes to a blower. Soo wait if u say that, then me puttin a smaller pulley on my cranks should increase my motors cubes?!?!? awesome :hsugh: um, static displacement does not change but “dynamic” displacement of the motor does change, for every 1atm of air inside the motor, displacement of the motor essentually doubles, everyone knows this. --- _[View the full topic](https://forums.speedlife.net/t/att-keyboard-racers-what-pittspeed-grudge-match-are-you-most-interested-in-next-year/186509)._