So, it's been a while since I have written a blog about the Supra project. Okay, it's been a while since I have written a blog about ANYTHING. Well I have been busy, very busy. After a few trials and tribulations with the cylinder head I decided on
Headgames Motorworks for the porting job. These guys have an incredible reputation in not only the Supra scene but many other makes and models as well. Give David a call to discuss options for your project. Customer support was second to none. It was very important for this project to maintain streetability but still make an impressive amount of power. After discussing my goals with David we agreed that a pocket port job was the way to go. The pocket port mainly concentrates on shaping the short side of the runner for optimum flow without sacrificing port velocity. David also cleaned up the combustion chamber for better combustion characteristics. To keep the air flowing when it should a
Ferrea Valvetrain was selected Complete with stainless valves, beehive springs, and titanium retainers. This should allow a vlavetrain RPM limit somewhere around the 8500 RPM range which works hand in hand with the pocket port and
Kelford T202-C cam set.
Many people feel adjustable Cam Gears are a requirement for any performance engine build. While there are certain benefits to be gained they come at a sacrifice of other things. Cam companies spend a lot of time developing cam sets to provide certain characteristics. Cam spec sheets are always provided to give engine builders the necessary information to degree the camshafts where they provide the benefits designed into the cam set. Degreeing the cams on this motor showed they fell into spec with the stock cam sprockets. As a set of adjustable cam gears would provide nothing for our goals but aesthetics which would not even be seen with the timing covers on, I elected so save the customer money by keeping the stock cam sprockets.
After all the engine mechanical assembly was complete it was time to install the
OS Giken TR series clutch. As the owner is not aiming for the "1500 HP Dyno Queen" status this clutch should fit the bill nicely.
Next up is installing the engine and tackling induction. Stay tuned!
