Metco Lower Advantages
- Thread starter aCiD
- Start date
There won't be any with a 3.4L SC. The lower helps smaller blowers turn faster with less slip. The lower allows the upper to remain the same size or slightly smaller and still maintain more surface contact area (and less slip) on the larger upper pulley while turning the blower faster.
Big blower with higher boost like that would keep me on the stock caged lower.
Pretty much this. It's only effective at maintaining a larger upper blower pulley so you can keep belt slip down and run more boost.
Also on a side note are we competing for longer text sig quick strike?
The "disadvantage" is the loss of the pulley support where the #1 main bearing is now taking up the side loads imposed by the blower and all the accessories that go along with it.
I had entirely too much time on my hands that day for sure. :beer:
I thought a aftermarket lower was suppose to generally make better torque PSI for PSI compared to an upper change. :shrug:
I do a agree that the lose of the support bracket is a negative. If you do go the aftermarket lower route don't get too aggressive with using a overly tight belt setup.
I do a agree that the lose of the support bracket is a negative. If you do go the aftermarket lower route don't get too aggressive with using a overly tight belt setup.
I won't use the lower Metco system based on the feedback and logic here. The blower is capable of generating the air volume I need while still having a reasonably sized pulley on it. I don't want to run the blower very hard.
There's also a possibility I could be going 4L as well, so I will need the extra support on the lower.
There's also a possibility I could be going 4L as well, so I will need the extra support on the lower.
Just make sure to get the dampner that is made for the stock pulley cage. They have many that fit the 4.6 and 5.4. Some are for non-SC engines, some are for the stock cage and some are for the Metco rings.
ZERO issues with my Metco 4# lower ... personally, I believe problems are with the install!
There have been issues with big torque from big blowers actually tightening the center bolt pulling the crank and ruining the thrust bearing and even cracking blocks. So if you stick with the stock lower, weld that center bolt so it can't get spun.
That won't be an issue with the metco setup but then there is nothing supporting the crank snout.
That won't be an issue with the metco setup but then there is nothing supporting the crank snout.
Yea, I've been looking at the proper IW one, thanks!
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