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86TOYO2k17 · 05-20-2018, 03:37 PM

It’s easier to tell the difference between a mod or say E85 vs 93 when you switch back to the old one. You get used to the more power and pep pretty quick. Generally speaking (a ton of variables and variation to this depending on setup) but header+tune = 20hp, E85 adds another ten. So half the difference you experienced with header+tune.

As far as gearing it should “feel” quicker by be same degree of increased ratio. So 4.1 to 4.56 should feel 11% quicker.
So in terms of acceleration and feel
Header+tune 12%
E85 6%
4.1 to 4.56 11%
Again this is all generally speaking.

05-20-2018, 03:37 PM	#7
86TOYO2k17 Senior Member Join Date: Jan 2018 Drives: 2017 toyota 86 Location: PNW Posts: 2,131 Thanks: 336 Thanked 1,190 Times in 781 Posts Mentioned: 16 Post(s)	It’s easier to tell the difference between a mod or say E85 vs 93 when you switch back to the old one. You get used to the more power and pep pretty quick. Generally speaking (a ton of variables and variation to this depending on setup) but header+tune = 20hp, E85 adds another ten. So half the difference you experienced with header+tune. As far as gearing it should “feel” quicker by be same degree of increased ratio. So 4.1 to 4.56 should feel 11% quicker. So in terms of acceleration and feel Header+tune 12% E85 6% 4.1 to 4.56 11% Again this is all generally speaking.