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Old 10-27-2025, 12:55 PM   #15
vince3
 
Drives: 2022 Vivid Orange LT1-M6
Join Date: Dec 2015
Location: Houston TX
Posts: 435
Lots of questions since you are one of the only manuals to run well. You don't have to answer if you don't want to, but I thought I would ask.

What RPM are you shifting at?
What total timing have you seen get you the best results? (I've seen some claim as low as 26, and others say 31 with E85)
What AFR/Lambda have you seen with the best results? (I've seen some say .82 and others say up to .92-.94 on E85)
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2022 Vivid Orange M6 LT1 - 2" ARH headers with cats and offroad setup (full system,), 3" ARH Pure Thunder mufflers, ported MSD intake, Soler 95mm tb, Rotofab CAI, E85 flex fuel, tuned by Jason@snackbartuning, Forgestar D5 18x8 fronts with 245/40/18 and Forgestar D5 17x10 rears with 275/40/17 summer tires.

Old car 2016 M6 SS - MSD intake, Rotofab, 2" ARH headers with cats, E85 with EFI Tuning. Best ET: 11.7@122mph
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Old 11-03-2025, 05:54 PM   #16
6spdhyperblue


 
Drives: 2SS 1LE
Join Date: Aug 2013
Location: US
Posts: 3,786
Quote:
Originally Posted by vince3 View Post
Lots of questions since you are one of the only manuals to run well. You don't have to answer if you don't want to, but I thought I would ask.

What RPM are you shifting at?
What total timing have you seen get you the best results? (I've seen some claim as low as 26, and others say 31 with E85)
What AFR/Lambda have you seen with the best results? (I've seen some say .82 and others say up to .92-.94 on E85)
I haven’t gone over 30* even on the most humid days.

Second

Fueling depends whether you have cats and cot

If you have them it’s all about working the model for cat temp. Keep the cats cool enough to minimize cot induced power loss and keep the cats alive.
Getting down the track with minimal hp reduction while keeping the cats healthy makes the car fast

Peak hp, dyno doesn’t mean shit with cats. Gotta be fast over the entire interval under full load.

That blue car was catless. I think it was around .90-.88 on E or about there. Don’t quote me.
Fueling was easy

This white car had cats and I was playing with the fueling and models for 3 years..trying to find what way was actually faster through all four gears

The White Car never got close to being as fast as the blue car
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Last edited by 6spdhyperblue; 11-03-2025 at 06:26 PM.
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