[Nicator]

Valvetrain is hydraulic roller, yes?

Anyone know the flowrate of the injectors (highz or low?), HP limit of the fuel pump? Stock fuel pressure?

Thanks

 

[Jonathan]

Re: A few more technical questions...

Valvetrain is hydraulic roller, yes?

Anyone know the flowrate of the injectors (highz or low?), HP limit of the fuel pump? Stock fuel pressure?

Thanks

the only one i know is the hp limit of the fuel pump- i should be easy 350+ crank hp and i have not had any issues yet. (although i am changing it before i boost more)

 

[BatuKing]

Re: A few more technical questions...

Valve train is same as all toyota's cam over valve, with a shimm puck.

 

[Nicator]

Re: A few more technical questions...

Shim puck? Sorry, I'm new to Toyotas. Does this have something to do with why I see stuff about adjusting valves periodically with Toyotas?

 

[TahoesHateMe]

Yes, there a solid lifter. The lifters come is differant thicknesses for when its time to adjust.

 

[Nicator]

Solid lifters? This is 2006...next you'll tell me it has a carburetor. What is Toyota's rationale?

 

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reduced mass in valve train requires less power to operate it.

Reduced parts count and overall compactness lends to a smaller overall package and increases reliability.