Quote:
Originally Posted by SYT_Shadow
probably larger turbos. The extra 50hp is coming out of somewhere for sure.
When you see the stage 1 tune power curves for the X3/4M you can tell the turbos are larger for sure. It can hold 600whp until redline.
The S55 can't hold even base power until redline
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It’s a bit of a mystery. I hope lemetier can shed some light on this. Larger turbos causing a right shifted TQ curve would indicate more Turbo lag than the X3M not less. Similarly if the added TQ is from a more efficient intake system with the same blowers the TQ peak should not be delayed. If its mainly ECU tuning, why the delay the TQ?. It’s intriguing.