That's for stage 1. I have stage 2...

 

Thanks, I will post one as soon as I have a moment. Appreciate it. Cobb should be getting back to me as well.
I truly hope the gauge is the issue (and it may be) but it also seems the data logs are showing 17.4 PSI maximum so regardless of the gauge / no gauge issue, I am feeling like there may be an issue since I loaded V1.06.

 

Draff, you'd focused solely on boost pressure. Does your tune do anything for performance as measured (before & after) on a dyno? An opinion of a highly qualified butt dyno would be helpful if a real one isn't available.

 

i believe this is the fetzer valve issue. i have a base 991.2 stage II 93 octane and my factory gauge goes to 32 psi.


oh and also, im lying. about the fetzer valve. oh and the boost guage.

the guys telling you that the gauge maxes at 17psi are correct. you should take your car to the dealer and have them check the gauge just to be sure. please report back.

 

For those that don't like the forum search function I find that going to google and using site:www.rennlist.com (add your topic after). It works pretty well for me. As for the Fetzer valve, I think Gordon Liddy below can help you with that but you're gonna need some ball bearings too man!

 

Send logs when ready. I need some new reading material.

 

Hi Everyone

Not sure if this is the right place for this, but I noticed that Cobb no longer has the Stage 2 tune for the 991.2 listed on their website? I bought my Accessport V3 a few years ago and installed the stage 1 tune, I have now added the soul sports cats and BMC filter and was going to upgrade it to stage 2, I do have stage 2 preinstalled in the Accessport so thats not an issue, but I dont see anything on line anymore and was wondering if there is anything that came up?

 

I was running it on my 2019 Targa GTS with no problems, at the time that is.

 

iirc there was a version update to the Accessport which took away the stage 2 maps? Additionally cobb may have dropped the documentation regarding it.

there are some graphs here and there which I found, but you may have to search for them.

for what it’s worth I ran stage 2 with soul sport cats, bmc filter, and upgraded diverter valves.

 

 

Let us know if you notice a significant difference from stage 1