My friend bought a rb20det clip that was bought from me last summer he took it apart, cleaned everything put in je pistons on stock bushed rods that were cryo treated. He bought used parts off of the same engine company and put together a very tuff rb20 for under a budget. He then swapped the rb20 for his l28 35r turbo z and used the same turbo on the rb20 , he did some nice head work using used tomei pro cam's and tomei type b valve springs and retainers and shims, he did a mild port job blah blah blah but now this z has come alive, the old L28 was alright but not even close to my bpu rb thats what made him change his mind. I will stand by my word on the older japanese inline 6 turbo's these engine will stand head to head to any newer v8 mod for mod.