Description
4agze Boost up Pulley Kit 170mm
Specifications:
Balanced for use at high RPM’s
Reinforced crank boss to prevent failure!
Longer Belt Included
Idler Pulley included
Solid Billet T6061 Aluminium
On a bone stock 4AGZE this should raise the boost to around 13PSI. If your engine has a much larger intercooler, you will not see quite so high boost pressure, but you will see much more power.
They weigh in at nearly 70% lighter than the factory pulleys. The keyway boss is larger to help prevent the keyway breakout that is so common on high revving 4AG’s
Dominick Hinton –
Hello from Colorado! I have a question about this crank pulley! I have 1988 Toyota MR2 SC that I’m restoring and currently have unknown aftermarket crank pulley. The belt chirps bad at full boost and I’m worried it’s also not a true harmonic balancer. Is this product consider a true harmonic balancer? My biggest concern is the unknown main bearing damage and wear that the4agze already has from the current pulley. After rebuilding the long block I don’t want to put a aftermarket crank pulley on if it is not a true harmonic balancer. Can product create more boost and serve as a harmonic balancer? Thank you!
mrp-performance –
Hi, You need to look at our other product which has the harmonic balancer built into the pulley. https://www.mrpltd.co.nz/product/4agze-boost-up-pulley-harmonic-170mm/
Matt –
Dominick did you receive an answer to your question? I have the same concerns.
zack –
Hello sir i from malaysia. i have a question between this pully(175mm) and 170mm pulley which better sir.. 170mm or 175mm..?
mrp-performance –
The Harmonic dampened one is always better which is 170mm