Really, with 4.0 Whipple and Accufab throttle body, your boost gauge works correctly?
I have had a few tunes from two people. One being Torrie. The first time the boost gauge read 1/2 of real boost. I make 20lbs if boost and was showing 10. Now I peg the gauge and seems right on tip in. I think it has to do with the settings in the tune and nothing to do with throttle body. Most guys run a mafia extender with bigger blowers but I do not because I made my intake bigger to not max out the card.
So bottom line I am not 100% it is reading the exact boost but it looks like it should be. If I switch between tunes the gauge changes so again it is in the tune. The factory gauge I think is electric not vacuume read.
Torrie what's your take?
I have had my setup hooked up to a vacuume Gauge boast gauge to prove the amount of boost I am making . This is how I found out I was loosing boost from the stock air box only with the clamshell closed. My custom intake took care of this issue. That was a 2 week problem I had after I switched to a whipple. i checked this with a manual gauge so I know I was getting accurate info before and after. Some tunes also open up the waist gate I think if the car thinks it should be in safe mode. Again This is a Torrie question. These cars have a lot a safety boost related software protections I think the tune has to be right. Torrie?
Ps the only thing I did not confirm was that my clamshell ducts are clugged and that was why I was not getting a good airflow but it looked good and seemed like that was a long shot. I did not like the small opening in the clamshell feeding the stuck air box anyway. This is my story and I'm sticking to it. 15000 mikes on my whipple setup so what do I know .