Experienced Help needed Please

[john_V63400]

Subject: RSM Supercharger Install

Problem: Everytime I install it I seem to have problems shortly down the road with vortech charger unit, oddly not the driveshaft.

Examples: Right after first install the turbine broke, then I fixed that and put it together again and the bearings went out. ( they were brand new with like 200 miles on them)

Can everyone with experience of the RSM Supercharger kit install please leave any suggestions or recomendations when installing the kit. Such as.... Make sure thats aligned, use lock tight here... Anything would help

Does that drive shaft need to be torqued down a certain way, Im thinking Im not installing it correctly and it keeps putting to much stress on the charger unit, is that pissible.

Thanks it will greatly be apreciated.

[john_V63400]

Wow can someone please say something

[CNCguy]

I have never owned one but have seen one apart in great detail. The RMS design has a major flaw in it. Instead of using a flex coupling or universal, RMS went the cheap route and used a solid coupling between the extension shaft and the blower input shaft. This creates two problems.

The first issue is alignment. If everything isn't lined up perfectly there will be stresses on the input shaft and bearings. Installation alignment is not the only problem. Improper machining or installation of the extension shaft and/or the solid coupling can cause alignment issues. A quick way to check shaft alignment would be to remove pulley and extension shaft housing. While holding the blower housing in a vise, rotate the input shaft and watch for runout on the extension shaft. The more that the end of the shaft wobbles, the more load and stress that will be transfered to the bearings.

The other issue is the transfer of vibration or harmonics. Eaton uses a rubber flex coupling on their input shaft to absorb vibration and compensate for any misalignment.

As for the turbine breaking, I assume you mean the turbine fan. I don't have a definite answer but suspect that it may have been a fatigue crack. Whether the crack was just a defect, caused by some strange harmonics from shaft misalignment or something else, I do not know.

[john_V63400]

wow greatly apreciated. Thanks
Anymore suggestions you RSM guys.
I know your out there.

[john_V63400]

Can Those with the experience please say something

[IsaacHayes]

I thought someone posted info on here about what bearings to get that are better at one point... Do a search and see if anything comes up. I remember reading about it. It might have been onefastv6...

[john_V63400]

Yeah I got the better ones already thanks, Im looking for more install tips and suggestions this time.

[bszopi]

To my knowledge, there is only 1 other person on here with the RSM kit, so I'm not sure why you are thinking there are so many people out there.

[john_V63400]

Really cause more than 2 or 3 have PM'd me I deleted them tho, I wish i wouldnt of, *sigh*

[1988GTU]

IMO the RSM kit is a hit or miss product. Some could be bolted on and go without too much failure, then you have the ones that required more downtime than it's worth. Kind of like having a nasty smelling rose and spraying it with perfume. In the end the flower still smells like butt when the perfume fades away. So what I'm getting at is that if you keep having problems with the unit, then maybe it's time to look for something less prone to failure.






.02

[Superdave]

Is it possible to re-engineer the RSM setup so that it would bolt to an accessory bracket and run in place of the A/C compressor? If so, that might help.

I saw pics of that RSM on a GAGT a few years ago, it made me shudder.

[john_V63400]

Im all set up for boost, I guess I could go N/A stage 2 from milzy

[IsaacHayes]

Or 3500 heads and goodies from the 60* store. Do you have lower compression pistons?

[95 V6 J body]

Is it possible to re-engineer the RSM setup so that it would bolt to an accessory bracket and run in place of the A/C compressor? If so, that might help.

I saw pics of that RSM on a GAGT a few years ago, it made me shudder.

Funny you say that. I was thinking of trying a vortech charger on the firewall side of the engine (below the alternator) and piping it to an IC. I need to get my hands on some dimensions to see if it's possible to fit there.

[john_V63400]

Yeah 9 to 1
I guess original was 9 to 5