valves springs on the 5sfe?

[THEARCHITEK]

can i upgrade my valves springs on the 5sfe, if so what is can u recommend?

[MR2Jedi]

Brian Crower springs. They also come with Titanium retainers.
Good price too. Check out their EBay store.

[MR2Jedi]

Why do you want to upgrade the valve springs? Unless you're installing highlift/longer duration cams, you won't see any HP gains.

[THEARCHITEK]

i kno i wont see any hp gain but my teacher at school told me it will help at high rpms much better n might help me rev higher n faster

[Jason.MZW20]

Originally Posted by THEARCHITEK

i kno i wont see any hp gain but my teacher at school told me it will help at high rpms much better n might help me rev higher n faster

Shim over-buckets aren't designed for high RPM use. Besides, going with a higher rate valve spring will actually make you LOSE power from the extra energy spent on compressing it down. Worse yet, the shim may pop out as the spring is unloaded and the bucket shoots upward toward the cam lobe.

Unless you go for a full build (with shimless buckets or shim under-buckets), don't just throw "upgraded" parts in there. Toyota has actually increased the power of its new engines by reducing valve spring rates and other sources of friction/wasted energy.

[RichieRichJP]

Originally Posted by THEARCHITEK

can i upgrade my valves springs on the 5sfe, if so what is can u recommend?

Yes, but a waste of money. Get rid of that 5sfe head.

[THEARCHITEK]

ah might go a diff route my friend has an 3sgte with everything im gnna c how much he wants for it but thnx everyone for ur opinions lol