led-panzer's 1984 300D 4-speed
led-panzer's 1984 300D 4-speed
That's great spool with an he341.
Why move to the HX35? I uderstand the largest 57mm HX35 flows maybe 600 CFM, the HE341 650 CFM. The HE's were the next generation turbo after the HX's and the HE doesn't have the split turbine housing. Split housing aren't much use in a 5 cylinder.
Drive pressure will probably be higher on the HE but I can't say for sure.
Alcaid is probably our best resource for matching Holset turbos to Mercedes engines.