theturboforums 
gt45-y2004k turbo?
gt45-y2004k turbo? fwhp/street driveability/track manor
Engine info:/lt1 383 9:1 comp/ 91 pump gas for street/c16 for track/
Drivetrain info: th400/10-bolt 3.42
Specs for turbo:twin gt45 y2004k
Compressor Size: Inlet = 4 3/16", Inducer = 68.7MM, Exducer = 97.8 MM, Trim = 69,A/R = 0.66, Intake (ID / OD) = 2.25" / 3.25"
Turbine: Outlet = 4", Turbo flange = T4, Downpipe flange = 3.5" V-band, Inducer = 87.4 MM, Exducer = 77 MM,Trim = 92, A/R = 1.05
GUY'S GIVE INFO SOME SERIOUS INFO
Engine info:/lt1 383 9:1 comp/ 91 pump gas for street/c16 for track/
Drivetrain info: th400/10-bolt 3.42
Specs for turbo:twin gt45 y2004k
Compressor Size: Inlet = 4 3/16", Inducer = 68.7MM, Exducer = 97.8 MM, Trim = 69,A/R = 0.66, Intake (ID / OD) = 2.25" / 3.25"
Turbine: Outlet = 4", Turbo flange = T4, Downpipe flange = 3.5" V-band, Inducer = 87.4 MM, Exducer = 77 MM,Trim = 92, A/R = 1.05
GUY'S GIVE INFO SOME SERIOUS INFO
Last edited by boosteddragon; Dec 4, 2011 at 08:06 PM.
Im thinking your going to hear crickets, its a chinese turbo and will get no love in here...but I run one and its a nice unit....Not sure of your motor, but on my 5.3, 10psi with 3.42 gears it runs mid 10's
I guess i'll take my answer to yellowbullet
I ran a Master Power GT45 (same specs as the Ebay unit) on a 6.0 LS. Made 600rw on 14lbs and was a beast on the street. Ran 10.70 in a 3400lb Nova with limited traction. Turned it up to 17 and did 10.45 at 132. I think you will be happy with it.
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Teching In
Joined: Aug 2011
Posts: 14
Likes: 0
Great turbo, I personally have not used one yet 
, but I have seen them used on buddys builds and they make good power and they have had no problems so far.
I think the exhaust housing AR is to big for 2 ebay gt45s but I may be wrong.
, but I have seen them used on buddys builds and they make good power and they have had no problems so far. I think the exhaust housing AR is to big for 2 ebay gt45s but I may be wrong.
Look at the specs of the original post. Its a little small as a single for a 383 but not WAY too small. There is two different turbos being talked about in this thread. The one the OP is asking about has a smallish compressor wheel (68mm) but has a pretty hefty turbine (77mm) with a 1.05 AR. Better have a good 383 to run two of those.
I would work great as a 600-650rwhp setup as a single. Anymore than that and look elsewhere.
I would work great as a 600-650rwhp setup as a single. Anymore than that and look elsewhere.
68mm turbo is way small for 383ci V8. That turbo may make great power up to 600-650rwhp, but would probably crap itself after that. Turbine side is fine IMO, but that compressor wheel is tiny.
OP - what are your goals for the car?
OP - what are your goals for the car?
Ok I guess the OP edited his original post to say twin GT45's. Thats going to make a crap load of power. I guess the goals are pretty high. There was a silver Chevelle from MN making around 1400 hp on a BB with two.
TECH Resident
Joined: Jan 2011
Posts: 934
Likes: 0
From: Tulsa
So basically your looking at twin T4 70mm Turbos with 87mm Turbines. It will work, but may take longer than you would like to spool. I say run em'! Denmah uses one from VS Racing and is at 20lbs boost.
