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Message: [QUOTE="Extended Power, post: 1521992, member: 898"] I agree, the 68mm turbine is too small for anything over a 64mm compressor wheel. The most responsive turbo I have ever used, was a 63/68 with a gated .70 exhaust housing. From a dead stop, the truck could lay rubber until I backed out of it. I also have a stainless steel, gated .80 housing for the 73mm turbine wheel on this 69mm. Even it worked better than the T4 .91 housing. (Of course...cuz it's smaller.) The only turbo that had a perfect 1:1 ratio, drive to boost pressure, was the one hit wonder from......gawd I can't remember his name right now... Anyways, it was a 64/71 with a non-divided .70 housing on it. It held that 1:1 ratio right to 40psi, then it started to wonder off. I'd try that one agin too in a heartbeat. [/QUOTE]

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