19/03/2026
We’ve had some builds fight us the whole way… and this customer’s 13B is one of them.
Rotors in, rotors out. Measure, re-measure. We slip those apex seals in, check the clearances, pull it apart and do it again until it’s right.
That’s the reality of a proper rotary build – it’s not about rushing it together, it’s about having the **patience** to get every seal, spring and housing happy before we even think about first fire.
Anyone can “assemble” an engine, but taking the time to do the boring bits right is what keeps the apex seals off the housings and the party out of the sump.
This 13B has been a slow burn, but when it lights off and settles into that crisp rotary idle, every late night and do-over will be worth it.
If you want it done fast, we’re probably not your shop – if you want it done right, you know where to find Mach One Tuning & Customs.