12.7 detroit upgrades
Discussion in 'Trucks [ Eighteen Wheelers ]' started by prerunner404, Jun 21, 2016.
Page 12 of 16
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The only thing if your picky is the bigger chargers are a little bit slower to spool off the bottom. You just have to drive the engine a little bit higher in the power band. Contrary to many peoples beliefs you still get better mpg because the engine breathes soooooo much better. You dont need to progressive shift for better mpg. Keep all your hard pulling duties above 1500 rpm. Dont lug it.
Having said that the 171702 is perty darn responsive. It's only the bigger chargers with the big A/R housings that you lose a bit down low. -
Thanks for the reply
I have a autoshift. S60 12.7.
2 mechanics warn not to do this but ppl on the forum seam to love it. How the temp doing with you. -
DetroitDudeBro and Willmann30 Thank this.
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A mild tune with an extra 75-100 hp and the right turbo you'll be fine. These people that warn you not to do it are probably the same people that say your drivetrain wont handle the extra torque. Compleat nonsense if drivin with some common sense.
DetroitDudeBro, bbechtel16, Willmann30 and 4 others Thank this. -
I've got a tune in a 12.7 with ceramic manifold and the BW 702 turbo. My coolant temps do run higher then before, but certainly not out of control.
Y-L Thanks this. -
Someone mentioned on a thread:
“What if u need to do an overhaul” will the dealer make u go back to stock before hand? -
I'm perty sure you dont need to go to a dealer with your 20 year old 12.7.
bbechtel16, Ruthless, ChicagoJohn and 3 others Thank this. -
It’s a 06 with all the emissions crap on it.
Vpod and the rest of the nonsensemagoo68 Thanks this. -
Well I wouldn't go to the dealer unless it was new and under warranty. If it's not then find a good performance shop to work on your engine.
bbechtel16 Thanks this.
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