sport camshafts to 3sfe engine

[dolat]

Hollow, I have Toyota with 3sfe engine, and I wanted to have better performance and boost power so I made up mine mind to assemble sport ( more sharp ) camshafts, I have done it and I have some problems: my engine works loudly, like disel engine, so my questions are; is it typical of sport camshafts or maybe there were some mistakes with design or the way they were made or they were wrongly assembled. If you have any suggestions how to modify my engine please send me info….Dolat from Poland

[white90dx]

With new camshafts, you will need to adjust the valve clearance. If your vavles were not adjusted when you installed the new camshafts, your engine will sound horrible and not run very well.

-Charlie

[terrastrife]

aggro cams tend to sound like deisel engines anyway... very lumpy

[dolat]

Hallow, thank you for your advice, I’ve adjusted the valve clearance but my engine still sounds horrible and doesn’t run very well, so another problem is that after installing new camshafts I’ve got worse parameters of power and torque. The new curve of power and torque(RPM) has got exactly the same shape but it is 10-15 Nm below the old one. I’m sending you the chart on your email box .

[Pineapple]

Got anything to adjust fuel? Check A/F and see how its running. What's the spec of the cams? What RPM its tune to? How's your intake and exhaust? Bigger cams with restrictive airflow won't give you any power.