Lightweight flywheel and lightweight pulleys: bad?
 

I actually have the TRD lightweight flywheel, and it's the best mod I fitted to my car.
What if I put lightweight pulleys? Any issues?

Lol. You know this kind of topic how it ends up ...

:popcorn:

You won't notice a power increase really. If you just want to have the car rev in neutral quickly, it will accomplish that :)

Leave the pulleys alone, not enough delta in angular momentum to make a difference. Changing flywheel on the other hand makes a noticeable difference in both free rev as well as acceleration 8n lower gears.

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Put the stock pulley back on after having my car for 5 years now.
ZERO difference.

Idle to redline and redline back to idle with the lightweight pully and the stocker were less than half a second different.

BUT The car did have that pulley from 6 months after purchase until a month ago. (2013MY)
No unusual wear to the engine according to OA.

IMHO pulleys are 99.99999999% bling and nothing else.

But the feels!

A pulley gets you exactly as much HP back as the drag reduction from a good wash and wax. The real gains are in the smiles per gallon the next couple days knowing what you did.

Waste of money. I still have mines in a box... Bought it before reading up on them in the forums. Wanna buy em? Lol


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Ok. Here is now my reply. I have Toda's light flywheel and pulley kit. No issues at all after 3 years of usage. As others said, the pulleys will not give anything. Only if they under-drive peripherals like the water pump or battery generator, but again the gains are small. It was calculated at the past to be in the range of 1-2 hp. The flywheel is a different story.