Ultrashift V2 X3 Tuning Chart Overview
This chart is a guideline with start points for vehicles using 30-33” tires at sea level. Adjustments may be necessary based on specific conditions.
For High Altitudes: Subtract 15% from the published HP range to calculate effective HP. Example: 200 CHP (sea level) x 0.85 = 170 CHP. Use the 161 CHP row as your baseline.
For Sand Dunes or Large Tires (35”+): Subtract 8% from the published HP range to calculate effective HP. Example: 200 CHP x 0.92 = 184 CHP. Use the 181 CHP row as your baseline.
For Tires 28” and Smaller: Add 8% to the published HP range to calculate effective HP. Example: 200 CHP x 1.08 = 216 CHP. Use the 220 CHP row as your baseline.
For Launch Control: Install the Launch Control Primary Spring (sold separately) to raise engagement RPMs. Add 2 magnets to each arm in Hole #1 or #2 to compensate for additional spring pressure.
Adjusting RPM: Cam arms have three magnet holes:
•Hole #1 controls RPMs below 30 MPH.
•Hole #2 controls RPMs between 30 and 50 MPH.
•Hole #3 controls RPMs above 60 MPH.
Adding magnets lowers RPMs, while removing magnets raises RPMs. Ensure magnets are evenly distributed across all arms. RPMs should be checked at 100% throttle between 20 and 70 MPH.
Setup Chart
•152 CHP / 130 WHP: Hole #1: 0 magnets, Hole #2: 1 magnet, Hole #3: 1 magnet.
Primary Spring: 7045112 Standard 1750 RPM Low Engagement Spring.
Secondary Spring/Helix: OEM Turbo RR Helix, OEM Turbo RR Black/Green Secondary Spring (Hole #3, 60° wrap).
Full-Throttle RPM: 7950 ± 100 RPM.
•175 CHP / 165 WHP: Hole #1: 0 magnets, Hole #2: 2 magnets, Hole #3: 2 magnets.
•195 CHP / 175 WHP: Hole #1: 3 magnets, Hole #2: 2 magnets, Hole #3: 2 magnets.
•215 CHP / 185 WHP: Hole #1: 3 magnets, Hole #2: 3 magnets, Hole #3: 3 magnets.
•225 CHP / 195 WHP: Hole #1: 0 magnets, Hole #2: 0 magnets, Hole #3: 0 magnets.
•255 CHP / 225 WHP: Hole #1: 0 magnets, Hole #2: 0 magnets, Hole #3: 1 magnet.
•290 CHP / 250 WHP: Hole #1: 0 magnets, Hole #2: 1 magnet, Hole #3: 1 magnet.
•330 CHP / 275 WHP: Hole #1: 4 magnets, Hole #2: 4 magnets, Hole #3: 4 magnets.
•360 CHP / 310 WHP: Hole #1: 0 magnets, Hole #2: 0 magnets, Hole #3: 0 magnets.
•400 CHP / 350 WHP: Hole #1: 1 magnet, Hole #2: 1 magnet, Hole #3: 1 magnet.
•500 CHP / 450 WHP: Hole #1: 3 magnets, Hole #2: 3 magnets, Hole #3: 3 magnets.
•600 CHP / 550 WHP: Hole #1: 2 magnets, Hole #2: 2 magnets, Hole #3: 2 magnets.
Additional Recommendations
•High Engagement Springs:
•KWI Maroon Spring: 1750 RPM low engagement.
•KWI Silver Purple Spring: 2700 RPM high engagement.
•KWI Silver Spring: 3400 RPM high engagement.
High engagement springs raise shift RPMs and require additional magnets in cam arms to compensate for increased spring pressure.
•Belt Recommendations:
•Gates 49R4313: Best for aggressive riding and racing; highly durable.
•Ultimax USX804: Ideal for drag racing with the Ultrashift.
•Dayco XTX5041: Good alternative if the above are unavailable.