On left is the TRD 272 cam with standard lift (0.7mm) and longer duration (272 vs 235), lobes of the cams are clearly less pointy than the standard cam on the right.

For dialing in the cams you will need a degree wheel, I made one out of a protractor that I photocopied and stuck onto a piece of cardboard. The wheel has a collar that fits into the center of the crank pulley. A bent wire coat hanger sharpened to a point serves as a pointer. (click here for jpg image of protractor)
 

Shows the dial gauge and stand with magnetic base. It takes a bit of practice before you can place the pointer of the dial guage on the lifter in such a way that it doesn't get bumped by the lobe as it swings around. This is dialing in the exhaust cam, I adjusted the cam timing such that maximum lift was 102BTDC. TRD recommends 100+/-2BTDC. I found that this was as close as I could get to 100BTDC with the non sliding TRD adjustable cam gears.
 

This time the intake cam, adjusted to 100ATDC. TRD recommends 98+/-2ATDC.  Once again the closest I could get to 98ATDC was 100ATDC with the non sliding TRD adjustable cam gears.

Here are the parts the make up the remote fuel pressure regulator. Front right is the custom made bracket of billet aluminum that plugs into the fuel rail, I reused the O ring from the standard pressure regulator. Back right the standard pressure regulator and the FSE fixed rate regulator.  Some Earls braided hoses links it all together.

All the bits come together, the bracket can just been seen on the fuel rail, with the braided hose coming off it at right angles. Another hose takes the fuel back to the fuel return line. back to the tank.  A vacuume line delivers the idle vacuume to the regulator so that it runs at a lower pressure at idle.

Also I found that the temperature sensor modification was good for increasing the richness of the closed loop fuel mixture. Produces alot more bottom end torque while in closed loop. When in open loop the adjustable fuel pressure regualtor was mainly responsible for the mixture level. But on hot days the mod would turn the ignition timing too far advanced and cause pinging, be careful with this mod.
 

How many injectors can one guy have? Well I found out pretty early that the standard 215cc/min Beige injectors (top right) weren't going to deliver enough fuel for the new cams. I tried the Supercharger 4AGZE 365cc/min Orange injectors (Bottom right) but they were just too big and was causing the ECU to go into limp home mode. Finally I got a set of 100kW Green 250cc/min injectors (Bottom left) and that did the trick.

Goto TRD 272 DYNO information
Goto TRD 272 CAM information

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