The old m20 was too small to keep in there so it was swapped for a 3.0L 1995 S50 from an obd1 M3 , then.....
I Fully rebuilt it ,and i mean "fully". Every seal, every bearing, every O-ring, Everything!! to result in a race prepped 8.5:1 compression monster Via:
-Forged CP pistons 8.5:1CR 87mm bore
-Eagle H-beam rods with ARP hardware
-VAC Stage 3 head
-VAC MLS gasket .70
-ARP main and head studs
-Custom self made stainless steel bottom mount manifold
-UUC Steel flywheel with:
-UUC Ultra-smooth Cera-metallic Modified M5 clutch
-Garrett GT35R .82 A/R
-PWR 57mm aluminum rad with 75 degree t-stat
-XS 24x12x4" Intercooler
-Aeromotive A1000-6 fuel pressure regulator
-55lb seimens/deka injectors
-turbowerx oil scavenge pump
-Walboro 255gph fuel pump with -6 SS lines
-Ross machine racing billet fuel rail
-HKS SSQ BOV
-full 3" stainless exhuast with vibrant muffler
-Tial rep wastegate
-2.79:1 rear LSD
- Victory product design Oil cooler cap adapter with a huge B&M cooler and Stainless braided hoses
-AEM 9" dry flow filter
- currently in house awaiting awaiting Autronic SM4 ecu and if needed - water alky control tuned to 20-25psi by lightspeed innovations
- and much , much, much, much more.