I've had SEVERAL conversions end up in the 60 to 65% range. I haven't done one in a while, but if I did, or I was recharging one already converted, I would start with 60%.

My best conversion has been my 88 Vette. It has 65% and makes 38 at the vent even on a really hot day. I was amazed at this because a bunch of people told me that they were terrible candidates for conversion.

I agree that your pressures are high. If using less than 60% improves system performance this will be close to amazing, but also very interesting.

Thanks for keeping us posted on all this.

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2001 SLK 320 six speed manual
2014 Porsche Cayenne six speed manual

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