Originally Posted by BrianBrave
Six-of-one -- half-a-dozen of the other.
Installing a new pulley on my electrically clutched supercharger that only provides 7HP in gains - - is just not worth the cost or the risk. Not saying it's a bad product - just not enough gains for the price and possibility of damaging my SC.
The largest crank pulley (185mm) increases the other pulley ratios (except the WP and Idler) by 20%. So you really only begin to overdrive them VS a stock crank pulley when your driving above 5K RPM. Your usually in the "sport" mode of driving at those RPM's - during normal driving there really is no issue. Example: 2,500 RPM with a 185mm is the same as 2,000 RPM with a stock crank pulley. No big deal.
That's well worth the risk and cost for the potential gains in PSI - - IMO.
A proper bearing will solve one issue, unfortunately the WP had to be reduced in size to clear the larger pulley. I've had to replace failed WP on my stock truck, so if I have to replace the WP on my SRT6 a little sooner as a cost of more performace -- OK.
I know what you are saying, my opinion is that whenever a component is running at 20% higher speed than the normal stock speed, it it decreasing its life compared to the stock part. With a higher speed the wear increases at a higher factor. If a $20 part fails and does $1,000 of damage that is not worth it in my mind.
Go for it, its your car and if you can get it towed home for nothing all the better. Good luck.