M4 Stage 2 Gear Reduction

[RoccoMarcellus]

Hey guys

Im on bootmod3 stage 2 OTS 93 Oct,

Wondering whats everyones gear reduction for maximum grip when launching. Trying to get rough figure that the majority is using and will fine tune mine from there

[Shubacca]

Originally Posted by MatRempit

Hey guys

Im on bootmod3 stage 2 OTS 93 Oct,

Wondering whats everyones gear reduction for maximum grip when launching. Trying to get rough figure that the majority is using and will fine tune mine from there

I don't launch, but I think 25% in first and 15% in second would be a good place to start. Assuming you are significantly traction limited. I'm also interested to see what others say.

[TideMD]

Originally Posted by MatRempit

Hey guys

Im on bootmod3 stage 2 OTS 93 Oct,

Wondering whats everyones gear reduction for maximum grip when launching. Trying to get rough figure that the majority is using and will fine tune mine from there

I'm currently at 20% for 1st and 10% for 2nd (on Multi-map with custom full E85 and 93FF slots).

Before the multi-map feature:
- E85 map set to 30% in 1st, 20% 2nd, 10% 3rd
- custom 93 map was 20% 1st, 10% 2nd

I'm currently in the process of tweaking the xHP Launch Control settings and have wheel/tire upgrades in the works, so hoping to trim it back to 10% in 1st or 0% across the board.
Also had one of the map slots adjusted for a drag/launch optimized tune... haven't really tried it yet pending the new rubber.

[M 4 FUN]

I have 20% torque rduction on all gears on my 6-speed M4. I have Öhlins suspension and PS4S tires and it grips perfectly on full throttle in second gear. It even launches well in first actually. Very nice.

[overlook637]

I never launch. But I have used 30% reduction in 1st. I often am turning left or right onto a public road and press into the throttle good enough that I would flash traction lights before.

I've since changed to 93 octane stage 2 and will be trying 50% boost reduction in 1st gear.