H&S Mini Maxx, Installation Manual

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1-888-628-1730 • Mini Maxx Installation Manual 41
nOTE:
If your fuse box or wiring looks different than those pictured or if you are not getting 12V ignition power from
the pictured source, you may need to find another 12V keyed ignition source using a test light or multimeter. If pos-
sible, find one that stays
hot
during engine cranking.
Pyrometer (EgT) location
If you are installing an optional H&S pyrometer kit on your 6.7L Cummins, you have the op-
tion of installing it pre-turbo or post-turbo (or both if you purchased an additional thermo-
couple).
For the most accurate EGT readings, we recommend installing the pyrometer pre-turbo
where all runners collect on the exhaust manifold as seen below:
nOTE:
Some exhaust manifolds have a divider down the center of the
collector so it’s generally not a good idea to drill right in the center, shift
to either side 1/4” and drill there.
For those wanting to install the pyrometer post-turbo, we usually recommend doing so in the
cast elbow connected to the turbo as seen below:
nOTE:
Post-turbo EGT readings can be up to 400 degrees cooler than
pre-turbo EGT readings. Keep that in mind when monitoring your EGTs
with a post-turbo pyrometer.
Overdrive Transmission Software
Did you know that your H&S tuning device also has the capability of tuning your transmission? If your 6.7L
Cummins is equipped with the 68RFE Automatic Transmission, you may want to check out our Overdrive
Transmission Software. Custom tailored to mate with H&S engine tuning, the 6.7L Overdrive software
includes boosted line pressures, modified full and part throttle torque converter lock/unlock strategies,
adjusted full and part throttle shift points, adjusted full and part throttle shift firmness, modified torque
management tables, and much more! All changes are designed to keep more power directed to the road
instead of wasted in heat and friction. On our test trucks, we have seen 0.2 to 0.3 second quicker 1/4 mile
times JUST from the addition of the H&S Overdrive tuning! An additional unlock fee may apply, see www.
hsperformance.com for details.
Dodge Pre-Turbo Mount
Dodge Post-Turbo Mount