I set up the Launch Maps on Tephra V7 and they build about 14~15 psi of boost but they sound nasty. Like explosions while on the 2 step. I have heard that a lot at teh drag stip. Is it safe to use Launch Maps. Will it shorten the life of the turbo or engine? I added fuel and set timing to -10. This is a street car.

 

yes it will shorten the life of your turbo.. also im not sure if there is a set psi for a set ign retard... but 10 psi will rip tires loose if you can launch . lol.