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Just installed a fixed pulley along with a RaceIQ tune so I’m selling a UPD 83mm clutched pulley along with a scattersheild..Pulley was on my car for only 7K miles..Bearing spins without play and is perfectly smooth.No issues at all..$300 for BOTH items SHIPPED anywhere in US.Items are boxed and ready to go..
My response to another member that asked the same..
I just mounted the fixed pulley and RaceIQ tune a few days ago so my experience is limited....I made the switch as I didn’t like the harsh engagement and sound of the belt chirp when the supercharger kicked on.Shimming helped it a bit but I couldn’t totally eliminate it and I wasn’t happy.It made the car feel sloppy..As far as the last 2 days with the new setup,,let’s start with the few negatives I’ve confirmed with my logging so far.Looks like I’m losing about 2mpg so far.IAT temps are consistently 10-12* higher,,and the blower gears are a bit noisy as you can hear them at idle..That’s it so far..The positives?..Wow..What a difference..Power is delivered instantly and very smooth.No more roughness or noise at all..The few times I got in it I melted the rear tires through the first 3 gears.Gears 1-2 are almost dangerous with more than 50% throttle..Even punching rolling from 40mph I got tire spin easily..I guess a negative I should ad is I’ll most likely be going through more rear tires..All in all,,I didn’t do the upgrade for more power.Just didn’t like the characteristics of the car before.Im totally happy now..Tune is a bit rich but seems on point..No hesitations,,misfires,or smoke..Better idle quality than my previous Eurocharged tune..Also people always talk about wearing out the supercharger..I’ve owned many roots type blower cars in the past(Pontiac GTP and Thunderbird SC)that we’re direct drive..No clutch at all..I’ve never had a single issue with any of them and they ran well over 150K..As a matter of fact,,the Mercedes is the only roots type setup I’ve ever seen with a clutch..Change your supercharger oil every 12-15K and I doubt you”ll ever have an issue with the blower.For reference my mods are below and nothing special that hasn’t already been done.Good luck with whatever you do..
My response to another member that asked the same..
I just mounted the fixed pulley and RaceIQ tune a few days ago so my experience is limited....I made the switch as I didn’t like the harsh engagement and sound of the belt chirp when the supercharger kicked on.Shimming helped it a bit but I couldn’t totally eliminate it and I wasn’t happy.It made the car feel sloppy..As far as the last 2 days with the new setup,,let’s start with the few negatives I’ve confirmed with my logging so far.Looks like I’m losing about 2mpg so far.IAT temps are consistently 10-12* higher,,and the blower gears are a bit noisy as you can hear them at idle..That’s it so far..The positives?..Wow..What a difference..Power is delivered instantly and very smooth.No more roughness or noise at all..The few times I got in it I melted the rear tires through the first 3 gears.Gears 1-2 are almost dangerous with more than 50% throttle..Even punching rolling from 40mph I got tire spin easily..I guess a negative I should ad is I’ll most likely be going through more rear tires..All in all,,I didn’t do the upgrade for more power.Just didn’t like the characteristics of the car before.Im totally happy now..Tune is a bit rich but seems on point..No hesitations,,misfires,or smoke..Better idle quality than my previous Eurocharged tune..Also people always talk about wearing out the supercharger..I’ve owned many roots type blower cars in the past(Pontiac GTP and Thunderbird SC)that we’re direct drive..No clutch at all..I’ve never had a single issue with any of them and they ran well over 150K..As a matter of fact,,the Mercedes is the only roots type setup I’ve ever seen with a clutch..Change your supercharger oil every 12-15K and I doubt you”ll ever have an issue with the blower.For reference my mods are below and nothing special that hasn’t already been done.Good luck with whatever you do..
01-03-2019, 03:59 PM
