[m235sav]

Here's my set up to get started

2015 M235 Rwd 6MT
19x9.5 rear wheels
265/30/19 r888r tires

Big Boost 3.3 turbo kit
Dorch HPFP
Stage 3 LPFP
BMP port injection
About 620-650whp (have not dynoed yet)
M performance diff
H&R lowering springs

Boost by gear through mhd
1st gear reduced to 40% power

I've tried launching from a dig multiple ways

Preset launch control in sport +
- just bogs and sometimes stalls out

DSC completely off and launch around 4-4500k rpms and wheel hop and spin the tires

I've tried heating the tires up with a Burnout before and no help.
I even put some track prep down and nothing.

I'm trying to find the easiest solution to get a good hard launch without building my whole rear end.

I will be getting 17x9 rear wheels with a slick
Maybe that will fix the issue?

Please shed any light on this situation so I can take peoples money on the streets.