Yes I was expecting this as well. But I was hoping the converter would let me boost until I find the perfect match converter for that size turbo. Ideally you want the big power in the back, not the front. Now my front engine is more powerful and that makes no sense. I will try it like that for now.
The turbos are switched. I will have to retune both setups now so lots of testing tomorrow before a real pass. It rained all day so I did as much testing in the rain that I could but with no load (low traction), it's hard to get the boost control right.
If I were you, to prevent all that work, I would have just set up an antilag switch on the rear motor to pull timing way down to spool the turbo.
2001 GTP Drag Car - XPZ, Tischler heads, Upsidedown M90 IC'd, e85, Gen V, 2.3 w/ 5%OD
2005 F350 6.0 - studded, deleted, tuned
2001 GTP - cam, headers, nitrous, stock trans - 11.83 @ 116 <$2k in mods - sold