01Harley & Indian Dyno Tuning
A big twin tune starts with heat and drivability. The horsepower comes after, and it comes with a printed sheet.
Details →Cruisers & Harleys · Stage 1 to Stage 4 Upgrades · Carrollton, TX
Stage 1, 2, 3 and 4 Upgrades for Harley-Davidson & Indian
Air cleaner and exhaust, then cams, then displacement, then heads. One rung at a time, each one tuned on the dyno.
Stage 1 is a high-flow air cleaner, a full exhaust system or slip-ons, and a dyno tune. It is the biggest change a stock bike feels for the money, and it is where the heat problem gets solved. Stage 2 adds a camshaft chosen for the displacement and the way you ride: a torque grind for a bagger that tours two-up, a bigger cam for a Softail that gets ridden hard. Lifters, pushrods and the cam plate or chain tensioners are replaced where the platform calls for it.
Stage 3 is displacement. Big bore kits take a Milwaukee-Eight 107 to a 114 or 117, a 114 to a 124 or 128, a Twin Cam 103 to a 107 or 110, with bored or sleeved cylinders, new pistons and rings. Stage 4 adds ported heads, higher compression and a matched throttle body and injectors for bikes that are built to be ridden that way.
Every stage ends on the dyno. A cam or a big bore without a calibration built for it is a hotter, angrier bike, not a faster one. We quote the parts and the labor together and tell you honestly which rung is worth it.
From the shop
Stage 1 to Stage 4 Upgrades in the bay
Questions
Stage 1 to Stage 4 Upgrades FAQ
Which stage should I start with?
Stage 1 with a tune, almost always. It fixes the heat, wakes the bike up and tells us how the engine responds before anyone spends money on cams or cylinders.
Do I need a new clutch or compensator with a big bore?
Often the compensator and clutch spring are checked or upgraded with Stage 3 and 4 torque. We inspect them during the build and quote any upgrade before doing it.
Do you install cams on Milwaukee-Eight and Twin Cam engines?
Yes. Cam installs, cam plate and tensioner work, lifters and pushrods are routine here, and the dyno session is part of the job.
Pairs well with
01
02ECU Flash & Tuner Modules
Flash the factory ECU or fit a tuner module. Either way the calibration is written for your parts and proven on the rollers.
Details →
03Cruiser Service & Maintenance
Three fluids, a belt, a schedule and a record for your file. The service your dealer does, without the dealer.
Details →Ready for stage upgrades?
Tell us about the bike and we'll tell you what it needs. Carrollton, TX, off I-35E at Whitlock Ln.