DEBOSS GARAGE
Cummins Swaps, Car Repairs, Classic Restoration
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Latest Video

All our Build Ups, as they happen, all in one place.

TUNING: 3.9L Cummins 4BT in an '04 Tahoe (Part 9)

Part 9: Filthy Rich goes back to the stock turbocharger and starts playing with the fuel pump!

0:06 Manifold Clarifications and Turbo Changes
1:43 Turbocharger Upgrade
3:26 0-80 km/hr Speed Test 1
5:58 Fuel Pump Tuning
7:55 Fuel Pin Overview
10:30 Turning the Starwheel
12:45 Boost Test
13:32 0-80 km/hr Speed Test 2

Special thanks to the helpful members of 4btswaps.com, igotacummins.com and reddit.com/r/diesel