Whats up guys, i just wanted to know what you guys thought of my CT-5 upgrade. I just removed the .15 lightning engine and replaced it with a 40,000 RPM .12TZ turbo. I upgraded all the pulleys to aluminum to be able to support the increased reeving and speed. I just got rid of the Skyion controller and bought a Futaba 75MHz controller and Duratrex failsafe (which added 3 times the distance and MUCH more features. I also added a Cen aluminum tuned pipe and manifold. I upgraded my 75ml gas tank to a 100ml tank (thank you Crown Hobbies) to last a bit longer. A RBinnovations air filter was added as well which really allows ALOT of air in the carb(huge air filter, looks like a K&N filter). Upgraded my rubber slicks to foam (a hell of a difference) and changed my regular gas lines to larger internal diameter gas lines with fuel filter. I have not yet run my new engine, but i can imagine it BOOKS!!!(just waiting on some parts in from CustomRCcars.com) I was told not to go with the Cen upgrade flywheel due to inconsistent starts and idling. Now, what else would i be able to do to increase my low to midrange speeds? I was thinking of maybe a stiffer suspension, but does Cen have a suspension that will make a difference? I have also been told that the graphite upper deck will lighten the car and will make a difference. Is this true, will it make a noticeable difference? Any help is appreciated. Thanx