LB7: Garrett GT3788R PowerMax Turbocharger kit Info
Chris (Neens) is going to put one of the new Garrett LB7 GT37R charger kits on his Dad's truck.
So of course, we open the box and take a peak.
Specs:
Most probable Compressor Map is the GT4088, since the inducer dia matches:
This is a theoritical 20% improvement in flow over the stocker, and should be able to generate ~40 PSI of boost before going out of it's map. IF the turbine will let it do it.
I do not like the fact it's a got a tight T3 exh mount and .99 A/R. We will have to see if this limits the charger in any way. We know the factory LLY charger is a GT37 sized charger but the mount is closer to being equivalent to a T4, not a T3.
Some pictures:
Chris (Neens) is going to put one of the new Garrett LB7 GT37R charger kits on his Dad's truck.
So of course, we open the box and take a peak.
Specs:
Fits - 2001-early 2004 LB7 Duramax Pickups, 8th Digit of VIN = 1
Shipping weight - 73lb
Exhaust A/R - 0.99
Intake A/R - 0.72
Boost control - Wastegated
Cooling - Water-cooled
Bearing - Roller-Bearing
Intake Inducer - 2.540" dia
Exhaust Exducer - 2.656" dia
V-Band Exh Dia - 3.700"
Compressor exit- 2.366" dia straight tube
Overall length of charger- 9.670"
Mount - T3 Pattern, D-port with splitter.
Height from pedestal to centerline - 3.500"
Map Width Enhancement - NONE
Inlet mount - flat LB7 triangle bolt pattern
Most probable Compressor Map is the GT4088, since the inducer dia matches:
This is a theoritical 20% improvement in flow over the stocker, and should be able to generate ~40 PSI of boost before going out of it's map. IF the turbine will let it do it.
I do not like the fact it's a got a tight T3 exh mount and .99 A/R. We will have to see if this limits the charger in any way. We know the factory LLY charger is a GT37 sized charger but the mount is closer to being equivalent to a T4, not a T3.
Complete instructions are here:
LB7: GARRETT GT3788R POWERMAX INSTALLATION INSTRUCTIONS in PDF format
Some pictures:
Attachments
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