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guybo · 11-08-2017, 05:02 PM

Those aren't independent TB's anyway. There's 1 MAF and the throttles all work at the same time, not independently. They are 4 separate throttle plates. The MAF to TB distance is a real thing and affects throttle response. I'm sure it'd be better than stock since there's less plenum volume in vacuum, but it'd take some serious engineering to make true ITB's and a custom tuning solution like MOTEC and 4 MAF's to make it so each TB can independently work.

If anyone does this mod, I want to see numbers.

11-08-2017, 05:02 PM	#21
guybo Huge E85 fan! Join Date: May 2016 Drives: 2016 Scion FRS Location: Tampa, FL, USA Posts: 1,850 Thanks: 539 Thanked 1,010 Times in 605 Posts Mentioned: 32 Post(s)	Those aren't independent TB's anyway. There's 1 MAF and the throttles all work at the same time, not independently. They are 4 separate throttle plates. The MAF to TB distance is a real thing and affects throttle response. I'm sure it'd be better than stock since there's less plenum volume in vacuum, but it'd take some serious engineering to make true ITB's and a custom tuning solution like MOTEC and 4 MAF's to make it so each TB can independently work. If anyone does this mod, I want to see numbers. Last edited by guybo; 11-08-2017 at 06:16 PM.