Ryy1009 000

Hello,
I m lookimg for advice on my set up. First turbo set up. I have a 2011 6.0 w/VVT, a 69mm GT45 turbo w/ 1.05ar T4 flange. I have a stage two turbo cam.from Brian Tooley Racing/LJMS (226/231 .605 - .598 and 113 +4 separation). Hardened push rods and dual valve springs. A 450 walbro lpm fuel pump with 80 lb injectors and a AEMmeth injection kit.
all going into a 4100# ,2005 GMC Canyon 4door crewcab 2 whl drive with a 4l80e trans 2900 stall and 3.73 rear gears. How will this combination work as my first build? What will be my limiting factor for boost? What can I expect for a rwhp? What will be the weak link for more hp? It's a street truck and I'm not sure what I will end up with for actual usable horse power. Any advice would be great.
Thanks
Ryan

jordoza777

iTrader: (2)

Seems like a good list of parts. Major short coming in my opinion is the gt45. Its the turbine side that is small for a 6.0. I believe you need a larger turbine to keep the back pressure in check. Maybe a vsracing s480. That would be perfect they are the same size as a gt45 on the intake side and only a little bigger in the turbine side. Denman just made 1000hp with a 6.0 and a vsracing s480. Second most restriction will be the single 450 pump. M8ght do two of those instead.

JakeFusion

iTrader: (7)

Cam should be fine with another turbo. Probably too much with that turbo.

But I'd keep the cam and swap the turbo. Since you're on the T4 flange, look at Forced Inductions BW S400 cast 75/87 1.10 A/R. I think that'd perform well on the 6L in the truck.

Ls-x

iTrader: (3)

"in my opinion" the turbo is too small for a 6 liter engine......

either install 2 69mm or at least go with single 78-76mm with the largest "T4" exhaust housing available if you must do a "T4".


I am now working on LY6 truck turbo setup and i got the s480 clone with T6 Because the truck have enough room for it.


Good luck with your build

1CAMWNDR

iTrader: (21)

VSR 480 with the 96mm turbine and 1.25 T4 option housing. $889.99

Ryy1009 000

Thank you all for your feedback. Looking back I should have ordered the 78/75 from vs racing
what is the down fall of a too small of a turbo? The truck is up and running now, and at 8-10lbs of boost is a real.handful
hahahh
thanks again
Ryan

truckdoug

iTrader: (26)

High back pressure will limit peak numbers, but having had a 6.0 and 7875 combo it'll generate peak **** eating grins