Desired Exhaust Back Pressure tables max psi

Kind

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Can the maximum psi of 75 be increased in anyway?

Does the factory sensor not read above 75psi?

Whenever I change it always reverts back to a maximum of 75psi after I save my adjustments and reopen the tables. I'm wondering if this is why my truck feels like it hits a limiter at 70-80psi of boost, no matter if I have a 1.8ms or a 2.4ms tune loaded.
 

Jonnydime

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I don't think your truck should care about exhaust back pressure. Hell I have my ebp sensor plugged into the coolant system to monitor the pressure there.
 

Kind

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Why do you say my truck shouldn't care about the back pressure?

If the factory computer is maxed out at 75psi I'm assuming there is a safety wall I'm hitting. Sure feels like it anyway lol.

I have a hard time believing my turbos just up and run out of steam at 70-80psi of boost no matter what size of tune. Considering I can hit 75psi of boost with a 1.8ms tune, max out in the high 1200* egts and on my 2.4ms tune I still max out at 75psi of boost and my egts hit the high 1600* before I let out.

My drive to boost ratio stays near 1-1 the whole way.

Just seems to coincidental.
 

Jonnydime

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The factory gauge does max out around 75psi. I run a standalone 100psi gauge to monitor my ebp and have been past 80psi several times but like I said my truck does not see an actual ebp reading. What's your rail pressure look like when this is happening.
 

Jonnydime

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I think first of all you need to get an actual ebp gauge capable of reading past 75psi. The Isspro one I am running has been flawless for the past 3 years. I installed it the factory port.
 

Highroller54

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My trucks been acting up and when it's being a pos and only making 30psi boost climbing a hill at 100% throttle the ebp was reading 78 psi on a scan tool. I'm guessing that is maxed out.
 

ckrueg

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On my tunes I had the ebp set to only 50 lbs buy it would easily hit 65+ at wot even on the street tune. I know you have different turbos but at wot I wouldn't think it would matter.

Sent from my SM-G930V using Tapatalk
 

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