GEN 1 Supercharger rebuild

[Sunchaser]

Looking for some advice from any and all high mileage supercharged gen 1s (or maybe even anybody who knows a lot about whipples) i recently purchased a new to me gen 1 raptor. Great truck but its recently started making some bearing noise coming from the whipple. I will be sending it out soon (80k supercharged miles) and i was talking to the supercharger rebuilder and they were saying at this mileage the rotors could need to be recoated. The price difference between bearings and bearings + coating was significant, how neccessary is this coating? I couldnt care less if im losing some efficiency but if there is a chance it can ruin the whipple ill do it. Just looking for some clarification on this as i keep finding conflicting info. Thanks!

 

[pcs]

what supercharger are you running? the coatings on the rotor packs does increase efficiency. you can run “naked” rotor. how much more is it to coat them?

 

[Sunchaser]

Its the 2.9L whipple specifically for the 6.2L engine. Bearings (stage 1 rebuild) around 700$. Bearings + coating (stage 3) was around 2500-3500$ depending on rotor condition

 

[Sunchaser]

Im really curious about roush blowers because it seems like there is more of them out there and high mileage ones at that. Wondering if they have to go through a similar process.

 

[MTF]

@Sunchaser

2.9L compressors for the Raptor are Gen 2 starting in 2012, Gen 3 started in late 2013 and 4 in 2014
I haven't heard anyone having to recoat the rotors on this forum.
Are you sending it to Whipple or this rebuilder you're talking about?
For $700 is that all bearings and gears?

 

[Sunchaser]

I think it is a gen 4 then but id have to take a look. It was installed about 10000 or so miles after the truck was bought. Im sending it to "superchargers online". The guy i talked to on the phone said they are a certified whipple rebuilder, roughly the same price as whipple and they had more availability than jon bond or whipple. 700 was for all bearings but it sounds like its case by case and depends on the overall condition of the blower.

 

[Sunchaser]

Truck just rolled over 90k miles and is a 2014

 

[MTF]

Good luck, hope it works out for you.

 

[KYmxracer52]

That sounds crazy that it would need bearings that quickly. Was the blower ran much with low oil level? I wouldn’t think it would be that difficult to replace bearings DIY, unless it requires some special tools that only they would have.

 

[Sunchaser]

From what i was reading the typical rebuild cycle is about 100k. It has 80k miles on it more or less so it just gave up a bit earlier than usual i guess. It sounds like its the bearings in the snout that went bad but its hard to tell. I watched a video on it and it doesnt look very diy friendly, also if something goes wrong id rather it be on them than me.