MBC and HKS SSQV.
EBCs arent quite as prone to Boost spike, but no matter what they try to do, youre still modifying the signal to the wastegate which is what ultimately controls boost. If the wastegate cant keep up, which, our crappy internal one cant, then youre going to get a boost spike until it does catch up.
Also, the design of our turbo is for fast spool, which also worsens the problem since you go from no boost to full boost very quickly.
EBCs arent quite as prone to Boost spike, but no matter what they try to do, youre still modifying the signal to the wastegate which is what ultimately controls boost. If the wastegate cant keep up, which, our crappy internal one cant, then youre going to get a boost spike until it does catch up.
Also, the design of our turbo is for fast spool, which also worsens the problem since you go from no boost to full boost very quickly.