The "Tank" - Big, Grey and Ugly ..

[GQUTERUS]

See if this makes sense to you - 1.06 rear, 0.5 inlet on the compressor side, with a 60mm Trim. Makes no sense to me!!! lmao. Apparently that'll not loose too much bottom end, but give me heaps more up top and let it rev out longer through the curve so it doesn't plateau around 3000 rpm ..

All that married up to a straight through 3" system (already got a 3" dump pipe, but didn't change the 2.75" exhaust at the time).

Sure does!

1.06 A/r rear, that's referring to the rear exhaust housing size. The bigger the number the bigger the housing and the bigger the housing the bigger engine you'll need to produce enough exhaust gas to run the turbo efficiently.

0.5 inlet, that's the size of the compresser housing. Not a big important factor..

60mm trim, that's the size of the compresser wheel. Bigger wheel the more volume of air it can move.


Your issue with the massive flat spot at 3000rpm is that little turbo running out of puff. The exhaust side of the turbo isn't big enough to produce enough air volume to hold the set boost pressure. The 1.06 rear will sort that out!!