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Old 07-20-2023, 11:55 AM   #106
radz28
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Drives: Ultra-Grin
Join Date: Oct 2006
Location: Crazy Coast
Posts: 15,820
Quote:
Originally Posted by JSH View Post
My tuner has spent two months trying to tune a PI LT4, and I'm not sure he's done yet.
I would NEVER try to give anyone ANY impression that I'm anything remotely close to a tuner (I'm sure you already know that from prior discussions and posts) but that is almost not surprising to me. Especially if it's remote. I'm sure my OCD got me carried away in doing stuff I might not have had to mess with, but I could not stand it not driving as close to stock as possible. It's was not difficult to put the car into a regime where it will buck/surge where I was having the most trouble. Because I live a sea level, but have close access to mountain roads (as high as 7000-feet), I didn't want any trouble with any of that, nor problems with my TORQUE MODEL causing a slipping tranny/converter or something like that. So far, trying to simulate those regimes by dragging the brake to enter some of those higher-load-lower-RPM-areas have yielded smooth transitions and my airflow model CL corrections are under control and relatively minimal. I don't think I'll get them perfect, partially because of the compensations for the PI, but I'm going to try. Come Winter, I'll be double-checking, and that will be the final validation of all this, IMO. So far - so good though.

If it's who I think it is, they'll get it nailed down
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