Welcome! I assume you're here from the delica forum? Think I recognize the name. I too had a 4D56 but went to the 4m40. Although I did go from the 5sp in the 2.5 to an auto in the 2.8... look forward to seeing what improvements you come up with. Will be interesting to see your baseline too...

Cheers
Phil


1991 HZJ77, 1999 KZJ90, 1999 UZJ100, 1992 M101CDN2
https://www.thegearheadproject.com/category/jdm-journeys/