bullseye s466 to 468

[1SloLMM]

There is a local guy selling an s466 with the race cover from his cummins pulling truck for pretty cheap and thought about picking it up, I was just wondering what would it take to upgrade to a 68 wheel? Do I need a whole new compressor housing or can it just be machined? How big of a wheel can this housing accept?

 

[PACougar]

I don't think the cost of going to a 68 would be worth it. That being said you would just need the compressor housing machined for the bigger wheel.

 

[mike diesel]

The "063g" or most common housing, can be machined out to 80mm.

 

[1SloLMM]

It has the cast wheel so I was going to get a billet or bmw so maybe il just go to the 72 like I had original ly planned to do. Getting it for 750 wirh only 4 pulls on it

 

[PACougar]

What size turbine wheel does it have?

 

[1SloLMM]

83 with .90

 

[PACougar]

That's not a bad deal, but I think you'd spend the same or less just buying a new one that has the wheel size you want. If you were going to keep it the way it is, I'd say it's a decent deal.

 

[1SloLMM]

Quick question... if I change a wheel does it need to be rebalanced everytime? I bought a remote mount kit so maybe I could try different configurations as I go and get the think in and out easily

 

[PACougar]

I believe if the wheel is balanced then you can swap them without having the entire assembly being rebalanced. Someone please correct me if I'm wrong!

 

[mike diesel]

Balance it everytime you swap wheels. I don't care if they claim pre balanced...get it balanced.

 

[PACougar]

Balance it everytime you swap wheels. I don't care if they claim pre balanced...get it balanced.

Mike if the turbine wheel/shaft are balanced separately from the compressor wheel and the compressor wheel is balanced, what would be the reason to do so? I've been told by multiple shops that this is the case but I'd like to hear more about the reasoning?

 

[mike diesel]

I've seen way too many "pre balanced" compressor wheels come apart when they are just slapped in.

When I had my 72 converter to a billet s480, the 80 wheel said it was good to go. But of course I paid the $35 extra to have it balanced. When I picked it up I asked how well that wheel balanced out and he said it was close, but not close enough for comfort. You are spinning that thing 80,000+ rpm, the slightest inbalance goes bad real quick. Me personally, I'll pay the $35 bucks and deal with the additional day of downtime.

 

[PACougar]

I've seen way too many "pre balanced" compressor wheels come apart when they are just slapped in.

When I had my 72 converter to a billet s480, the 80 wheel said it was good to go. But of course I paid the $35 extra to have it balanced. When I picked it up I asked how well that wheel balanced out and he said it was close, but not close enough for comfort. You are spinning that thing 80,000+ rpm, the slightest inbalance goes bad real quick. Me personally, I'll pay the $35 bucks and deal with the additional day of downtime.

Trust me, I'm with you on the better safe than sorry. I had just been told it's not a problem from multiple shops and I haven't ever experienced a problem with it.