Originally Posted by RIBahler
Does it seem that my HP and TQ come on a little late in rpm's, or is it just because of high flowing intake and exhaust modifications? Ive done research myself, but cannot come up with a clear answer. Does anyone have any experience with this similar situation?
It is because of the dyno loading. Dyno loading is often not as high as street loading, so boost builds a little slower.
The tuner already posted in the thread mentioning it spools by 4k on the street, which is fairly normal for the typical size upgraded turbo for EJ205. I think you're in the right ballpark.