Where to Get Your Wynjammer Supercharger Repaired: Complete Guide to Repair Options
Finding Repair Services for a Discontinued Wynjammer Supercharger
Wynjammer superchargers have been out of production for years, which creates a real problem when your unit needs work. The good news: it’s still possible to get repairs done. You’ve got several paths forward, depending on what’s wrong and how much downtime you can afford.
Vortech as a Repair Option
The rumor about Vortech handling Wynjammer repairs has some truth to it, though it’s not as straightforward as just shipping your supercharger to them. While Vortech doesn’t list Wynjammer units on their official rebuild menu, they have been known to service non-Vortech superchargers on a case-by-case basis. Your first move should be calling Vortech directly to ask if they’ll take your particular unit and what they’d charge. Don’t email—call. Response time on phone inquiries is faster, and you’ll get a real answer instead of a canned response.
Independent Supercharger Rebuild Shops
Specialized shops that rebuild superchargers from multiple manufacturers are your most reliable option. These places work on Vortech, Magnuson, Eaton, Edelbrock, and a variety of other brands, which means they have the expertise to handle vintage or discontinued units like yours.
Superchargers Online is a factory-authorized Eaton rebuild center that also handles most major brands. They’ve rebuilt units from dozens of different manufacturers and can typically turn around work in 10-15 business days. Standard rebuild work includes new bearings, seals, and gears, plus a full inspection of all components.
Stiegemeier Porting Services has 25 years of experience rebuilding superchargers and has a reputation for taking on jobs others won’t touch. They specialize in restorations of older or damaged units and often promise faster turnarounds than bigger shops.
DMPE Inc and Kenne Bell Superchargers (which has been in the business for over 50 years) both handle rebuilds across multiple supercharger brands. If you’re calling around, these are names worth adding to your list.
Local Performance Machine Shops
Any solid performance-oriented machine shop can do bearing work, seal replacement, and basic inspection on your Wynjammer. They won’t be specialists in supercharger dynamics, but for straightforward repairs like addressing bearing failure or compressor wheel issues, they’re often faster and cheaper than sending the unit across the country. The key is finding a shop with actual supercharger experience—ask about it before handing over your unit.
What to Expect in Costs and Turnaround
Minor rebuild service (bearings and seals only) typically runs $200-400. Major rebuilds (which replace bearings, seals, gears, and all worn internals) range from $400-800 depending on damage and shop rates. Specialized shops like Vortech charge a minimum inspection fee of around $100 just to disassemble and look at your unit if they ultimately decide not to do the work. Turnaround time is usually 10-15 business days from authorization.
Before You Contact a Shop
Know what’s actually wrong with your supercharger. Bearing failure (where the compressor wheel contacts the case) and belt slippage at higher RPMs are the most common failure points for Wynjammer units. Be specific about symptoms when you call shops—”it’s making noise” or “it’s lost boost” gives them something to work with. Have photos of the unit and any damage if you’re shipping it out.
Get an estimate in writing before the work starts. Ask what the warranty covers on rebuilt components. And if you plan to keep the supercharger on the road long-term, ask the shop what they recommend for preventive maintenance or upgrades they can do while they have it apart.