7.3 Turbo talk

02POWERSTROKE7.3 · Oct 10, 2011

Anyone running a hx50?

Derek@Vision Diesel · Oct 10, 2011

I ran a hx55 with 250/200s

02POWERSTROKE7.3 · Oct 10, 2011

How was that setup? I'm thinking about picking up a hx50 here locally.

BigJDW · Oct 10, 2011

Ok this might be a stupid question cause i have no idea what all the abbreviations y'all keep putting up nor am i an expert on specific turbo applications. I just wanted to know if any one has used or knows any one thats used a switchblade turbo. I'm asking because i happened to see a commercial for them and it seemed like a good idea for mostly stock obs.

TrailerHauler · Oct 10, 2011

Vader's Fury said:
I have a 466 with 250/100's. Still trying to get everything buttoned back up so I can get some drive time on it. Went with the 66 for the spool up. I tow alot with the truck and it is a 6 speed.

I will post up how it drives once I get it road ready. Hopefully in next week or 2

Please do, as that's almost the exact same setup I plan on running only with bigger nozzles.

JHILL · Oct 10, 2011

02POWERSTROKE7.3 said:
How was that setup? I'm thinking about picking up a hx50 here locally.

Wich HX 50? there are 2 variations, I am currently running the larger with a 19cm non WG Turbine housing.

02POWERSTROKE7.3 · Oct 10, 2011

Same one you are running.

Derek@Vision Diesel · Oct 15, 2011

Anyone on here running a s475??? Or maybe something similar?
What size nozzles are you running with it?

uncool · Oct 16, 2011

Strokeorcroak said:
Anyone on here running a s475??? Or maybe something similar?
What size nozzles are you running with it?

476, 200 or 100 does not matter. Best towing turbo You will ever find.

Derek@Vision Diesel · Oct 16, 2011

uncool said:
476, 200 or 100 does not matter. Best towing turbo You will ever find.

Thanks for the info!!! What if a guy doesnt tow much, wants more of a play rig/DD.... Could he go bigger than a 476?

Hotrodtractor · Oct 16, 2011

Strokeorcroak said:
Thanks for the info!!! What if a guy doesnt tow much, wants more of a play rig/DD.... Could he go bigger than a 476?

The turbo that Marc is talking about is the exact same turbo I ran on the red truck in 2007/2008. To me that makes a pretty damn well rounded turbo.

02POWERSTROKE7.3 · Oct 16, 2011

What Injectors were you running with that turbo hrt?

Hotrodtractor · Oct 16, 2011

02POWERSTROKE7.3 said:
What Injectors were you running with that turbo hrt?

400/200 B-codes with some massaging done to them. If I would have swapped out to some hybids and opened up to a larger turbine wheel that truck of mine would have been WAY nastier than what it was. When I started out with that turbo I had several tell me to was too big to spool - by late 2007 I could make boost with that turbo just by reving the truck in neutral - like 15psi at 3000 with no load if I remember right - I could be a bit off there....

oldschool · Oct 16, 2011

Ive red a bunch of these replys and on other sites, and don't really see what i'm looking for. What I want to know is i've got a 96 with standard tranny, intercooler and stage 2 inj. i'ts a work truck that tows sometimes up to 22k gross. stock turbo is starting to leak and needs replaced. I am happy with the power it can produce but am limited to exh temp. pulling grades at 8 or 9k ft, with 8k load, i have to back way out of the throttle to keep it at 1200 deg. Got lots more pedal. Would also like to reduce the smoke on lower end. so I want a turbo that will spool quicker and keep the high end flow and lower the exh temp. am looking at the d66 but see you guys talk up the s476. I would like to a little more info than use this or that turbo, i'd like to know why it's better, and what it'll do. Thanks for the info

V-Ref · Oct 16, 2011

I can't tell if Uncool and HRT are being serious about a Journal Bearing 75mm compressor inducer turbo or not.....

My truck would tow, but with any weight/grade, the rpms need to be north of 2100-2200 rpm, otherwise EGTs got warmish, and you need to back out of the go pedal.

oldschool-If I was to spend your money, it would be on a GQSSB and either a Hypermax mount for it, or get a T4i mount built by Irate Diesel or Carson Stauffer. 38R would be the most economical route, but after you bought IH bellowed up pipes, got the right turbine housing (1.15) for it...you're pretty close to the cost of a GQSSB/T4i mount setup.

I don't think towing is on the top of the list of what a 7.3 should do when looking at 71mm+ comp inducer size turbos. My 2 cents for free.

Derek@Vision Diesel · Oct 16, 2011

Hotrodtractor said:
400/200 B-codes with some massaging done to them. If I would have swapped out to some hybids and opened up to a larger turbine wheel that truck of mine would have been WAY nastier than what it was. When I started out with that turbo I had several tell me to was too big to spool - by late 2007 I could make boost with that turbo just by reving the truck in neutral - like 15psi at 3000 with no load if I remember right - I could be a bit off there....

So a 476 with what exhaust configuration would you suggest?

V-Ref said:
I can't tell if Uncool and HRT are being serious about a Journal Bearing 75mm compressor inducer turbo or not.....

My truck would tow, but with any weight/grade, the rpms need to be north of 2100-2200 rpm, otherwise EGTs got warmish, and you need to back out of the go pedal.

oldschool-If I was to spend your money, it would be on a GQSSB and either a Hypermax mount for it, or get a T4i mount built by Irate Diesel or Carson Stauffer. 38R would be the most economical route, but after you bought IH bellowed up pipes, got the right turbine housing (1.15) for it...you're pretty close to the cost of a GQSSB/T4i mount setup.

I don't think towing is on the top of the list of what a 7.3 should do when looking at 71mm+ comp inducer size turbos. My 2 cents for free.

im running a 72mm comp inducer turbo right now, and pulling is not a problem at all. Maybe thats just in the tuning, but it runs much better while towing in fact.

What would you suggest for a 200% nozzle looking for 550+ on fuel, towing is probably at the bottom of the list as it doesnt happen very often. And i dont want to spend for ball bearing.

Magnum PD · Oct 16, 2011

How did you like the hx55 with the 250/200's ? What hp?

Derek@Vision Diesel · Oct 16, 2011

Magnum PD said:
How did you like the hx55 with the 250/200's ? What hp?

I never got it on a dyno, but i didnt really like it honestly. Maybe the tuning wasnt correct but it seemed a little bit small. It sure spooled quickly and easily, but up top it choked pretty badly. back pressure was about 60psi at 43lbs of boost