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GT40 1.5JZ
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I've got a 1JZ that is a 2.5 liter MAP-sensor supra engine. I got some ct-12b turbos slapped onto my engine right now running in TTC. I was wondering if .5 liters would make much of a difference in spool up. Keep in mind, I don't have any butterflies in my twin turbo setup.

I'm also going to be running stock USDM 2JZ cams. I just need to get them machined. I'm basically running a JDM 2.5 liter version of the USDM 2JZ but I can rev up to 7250rpm.

Target -> 400rwhp

-Joseph

BTW, what kind of PSI can I run with california 91 octane w/ a FMIC?
 
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