It's far from ideal. It's on the big side for a 4.6, and you're likely to experience a fair bit of lag.
HOWEVER if you're looking to just have some fun and not really care if the car is performing at it's optimum efficiency (Which, I mean, the stock shortblock is only good to about 450 bhp anyways) they can work. The guys over at Roadkill used that exact turbo on a chevy 4.3L V6 and got results they were happy with... until they blew the motor up.
Keep in mind though that no one is going to make a bolt up hot/cold side kit for this, so prepare to either do some fab work or pay someone to.
thanks royal. I was looking at other fourms and they bought up the point that the 7.3 only revs to like 4k rpms and that makes up for the higher displacement. How much better would a 6.0 turbo be.
The 6.0 is going to perform marginally better but you still face the same issues the 7.3 charger does. I don't know the specs of the two to compare, however.
Come to think of to think of it, the 6.0 turbo might be the one that Roadkill used on their 4.3. I'd have to check to be sure.
Here are the Stock 7.3L PSD Turbo Specs:
STOCK GARRETT TP38 (on the 7.3)
Compressor wheel inducer diameter: 59.87 mm (60 mm)
Compressor wheel exducer diameter: 80 mm
Compressor housing A/R: 1.10
Turbine wheel inducer diameter: 76.2 mm
Turbine wheel exducer diameter: 69.84 mm (70 mm)
Turbine housing A/R: 1.15
It's certainly not going to choke your engine at high RPM with that A/R and turbine, but as with a lot of diesel turbos, that big turbine, big A/R, and small compressor means it's going to be pretty lazy down low and not make a lot of boost.
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