Boost After Tuning?

[Timothy.c.patton]

I am new to cummins but not Diesel.

I tuned my truck with RaceME Ultra box tunes and liked them.

I was running my truck down the highway today with a bit of pep, and I hit 40 psi of boost.

This seems maybe too high.

Opinions?

I was on tune 2 (Tow).

My goal is not to float ahead and to run safely.

I dont mind running stock tune if you think 40 is too much.

Most likely, I think it spiked to 40 because when I started watching it, it stayed around 32 psi under hard acceleration.

I just saw the max (below the actual reading) was 40 psi.

2019 RAM 2500 Cummins

Mods to air
Banks Boost Tubes
Monster Ram intake horn
Banks Intercooler
S&B Intake
Throttle Valve Delete
Grid Heater Delete
Grid Heater Plate replaced with banks

Thanks for your guys help in advance.

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[AK Bob]

You will be fine with 32 psi maximum sustained.

The stock MAP sensor won’t read over 36 psi.

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[Corkey]

You would want a 5-bar map sensor to read higher than 36psi.

Remember, it's a pain to tune with specific sensors out there.

The best and easiest way is to use an analog gauge and plum the line to the intake.

5 bar map sensor. (-1 bar to +4bar)
-14.5 PSI to +58 PSI Absolute pressure sensor
-14.5 PSI = 0.5 Volts, 58 PSI = 4.5 Volts
Outputs 0.5V to 4.5V
Input 5V

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[BuckMeister]

You will be fine with 32 psi maximum sustained.

The stock MAP sensor won't read over 36 psi.

When I had the stock turbo, my RaceME Ultra would also give me readings above 36 PSI.

I know for sure it has read 40 PSI before.

Now, with the second-gen swap and custom tunes, it won't be over 36 like it should.

To answer OP, I hit 36+ PSI on my stock turbo more times than I can count with stock head bolts.

The turbo worked fine when I pulled it out with 160k miles or so on it.

I never had mine set to below the 120 hp setting. I ran the 150-200 hp tune frequently.

I also had some other settings turned up; I'm unsure if the 5th gens have those.

I am not telling you it's safe, just my experience.

My advice is to get some head studs and stop worrying about it.

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[NovaNewfie]

Mine won't read above 36 psi, which hits very quickly at the start of a long pull.

I have never put another gauge on it.

The guy who does my tuning figures, I'm up around 60.

Your monitor may be calibrated to read from 0 and not from normal atmospheric pressure, which would add a few psi.

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[IndyRamMega]

I am new to cummins but not Diesel.

I tuned my truck with RaceME Ultra box tunes and liked them.

I was running my truck down the highway today with a bit of pep, and I hit 40 psi of boost.

This seems maybe too high.

Opinions?

I was on tune 2 (Tow).

My goal is not to float ahead and to run safely.

I dont mind running stock tune if you think 40 is too much.

Most likely, I think it spiked to 40 because when I started watching it, it stayed around 32 psi under hard acceleration.

I just saw the max (below the actual reading) was 40 psi.

2019 RAM 2500 Cummins

Mods to air
Banks Boost Tubes
Monster Ram intake horn
Banks Intercooler
S&B Intake
Throttle Valve Delete
Grid Heater Delete
Grid Heater Plate replaced with banks

Thanks for your guys help in advance.

When did Banks release the 5th gen intercooler?

 0 Comment(s)

[Timothy.c.patton]

I made an 18’ fit.

I can take pics if you need them, so you can do the same if that’s what you're looking to do.

When did Banks release the 5th gen intercooler?

 0 Comment(s)

[IndyRamMega]

I made an 18’ fit.

I can take pics if you need them, so you can do the same if that’s what you want.

I am interested.

Was there a lot more room?

With the larger 5th gen grille, do you think the newer I/c will be larger?

 0 Comment(s)

[Timothy.c.patton]

I had tons of room because of the aftermarket bumper, and it's mounted diagonally under the radiator.

I'll take some pics for you when I get back on Wednesday.

er?

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