GM Diesel Fuel System Upgrades

Lift Pump Systems
In the real world, the fuel tanks are usually mounted at 2' to 3' below and 6' to 10' away from the injection pump, this configuration creates multiple problems associated with the fuel delivery to the engine. One problem, the injection pump has to draw the fuel from the tank by creating a vacuum. Another problem is fuel vapor occupying the space that should have been pure fuel, thus delaying the injection of fuel into the combustion chamber. This phenomenon is better known as "RETARDED TIMING." The vapor present in fuel is very inconsistent making it virtually impossible to adjust for varying degrees of changes in injection timing. As a result, the engine does not perform to the manufacturer's specification.

TTS has created two lift pump systems rated by what we feel is the maximum RwHp level they will safely support. These are complete kits with all the necessary mounting hardware and electronics to safely control them. After installation if for any reason you wanted to remove the lift pump the factory system can be reinstall as no lines are cut or modified!

Both kits come with the same safety features:

  • Digital microprocessor controls
  • Auto 2 sec. prime at key on
  • oil pressure safety pump operation
  • fused wiring with under hood sealed fuse
  • switch override for priming factory filter when changed
  • Factory push lock fuel fittings and hoses
  • Full bypass operation
  • Two stage pump operation (dual pump kit only)

Single pump kit good up to 375 RwHp
Duel pump kit good up to 600 RwHp

Single Pump Kit = $360.26
Dual Pump Kit = $485.26

Fuel Pickup System Upgrade
2001 – 2007 GM Duramax LB7, LLY, & LBZ

The stock GM Duramax fuel pickup line is 0.240” I.D. while all the fuel line and connectors are 0.500” I.D. As a result of this restriction in the fuel tank the pump has to work harder in order to retrieve the fuel thereby starving the engine of usable power and also potentially impacting Injection Timing as a result of cavitation.

TTS has developed a fuel pickup system upgrade for the GM Duramax where the fuel pickup line is 0.500” I.D. Made of 6061 billet aluminum that replaces the stock plastic restrictive pickup, and machined to accept a 5/8 hose to increase the fuel flow by over 140%.

  • Tests have shown that 7”Hg is not uncommon in a Duramax powered vehicle using a lift pump as measured at the top of the sending unit, this can be lowered to 1.5”Hg using our Billet Fuel Pickup
  • Designed and manufactured using the latest in solid modeling and Cad/Cam technology.

Fuel Pick up with hose $92.74

LB7 Fuel Pick-Up kit: $174.85
Includes hoses, adapters, fittings, pick-up - everything needed to do a complete installation

LLY / LBZ Install Kit with Fuel Pick Up $105.82
Includes hoses, adapters, fittings, pick-up - everything needed to do a complete installation

Modification of sending unit shown above is necessary for installation on LB7.

TTS Billet Fuel pickup & Hose

Stock pickup vs the TTS Pickup.

Complete assembly installation (Shown with LLY Hose kit)

Fuel System Dual CP3 kit
2001 – 2007 GM Duramax LB7, LLY, & LBZ

TTS has developed a dual CP3 pump kit, for even the largest injector and or fuel programs that demand a high volume of fuel flow, while still having the ability to maintain optimum fuel pressures at the injectors.

The TTS CP3 upgrade will providing enough fuel to make over 1200HP while supplying fuel seamlessly and instantly at any requested fuel pressure. If you are wide open during competition or driving through a school zone this upgrade works in all environments.

Since each pump now shares the total fuel delivery, drive load on the original internal CP3 pump is reduced by 50%, increasing pump reliability.

Note: Lift pump and fuel pick up are not required with this kit, however for optimum flow to both CP3’s and to reduce fuel filter restriction it is recommended.

PRICE TBD

 
 
Some parts are not legal for sale or use in California on any pollution controlled motor vehicles.
All returned items are subject to a 10% restocking fee.