What's the Stock Turbo Size for the 7.3L Powerstroke?

Performance & Modifications
1

Seeking Info on Stock Turbo Size for My 7.3L Powerstroke

I’ve been diving into the details of my 7.3L Powerstroke diesel engine, and one thing I can’t seem to find clear information on is the stock turbo specifications. Specifically, I’m curious about several aspects:

  • What is the actual size of the stock turbo?
    I’ve heard different numbers floating around. A precise measurement would really help.

  • Compressor Diameter:
    Does anyone have the specific compressor diameter for the stock turbo? I want to make sure I’m comparing apples to apples when looking at upgrades.

  • Potential Upgrades:
    I’m also considering some performance upgrades down the line. If you have recommendations for turbo upgrades, or any insights into what changes with a larger turbo, I’d love to hear your experiences.

Why This Matters

Understanding the stock specification is important to me both for maintenance purposes and to ensure I’m optimizing my engine’s performance without compromising reliability.

If you’ve tinkered with your 7.3L or have knowledge on this, I would greatly appreciate your insights!
Helping each other out in the community is what it’s all about!

Thanks in advance for any information you can provide!

2

The stock turbo for the 7.3L Powerstroke is typically around the T4 size. It provides a good balance of performance and efficiency for most applications.

3

That’s interesting! I’ve heard the stock turbo can handle around 15-20 psi. How does that compare to aftermarket options?

4

Aftermarket turbos can push up to 30 psi or more, depending on the size. Many enthusiasts upgrade to the S300 series for better horsepower.

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5

I think it’s also critical to consider how upgrading the turbo affects towing capacity and engine longevity. Any thoughts on reliability with bigger turbos?

6

That’s quite a jump! How does that power increase change the driving experience?

7

With the increased boost, you’ll notice better throttle response and power, especially when towing. Just be sure your fuel delivery can keep up!

8

I’m thinking of upgrading my turbo, but I want to ensure I don’t compromise efficiency. Is there a size that balances both power and fuel economy?

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9

You’ll want something like a VGT turbo. It’s designed to improve both performance and fuel efficiency under different loads.

10

I’ve heard mixed reviews about VGTs though. Some say they can sometimes be less reliable than fixed geometry turbos. Anyone experienced issues?

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It really depends on how well they are maintained. Keep your oil changes regular, and you should be fine!

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I’m just here for the horsepower! Who needs a quiet ride anyway? :joy:

13

Haha! But some of us are really interested in that balance between power and comfort. How do we find it?

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Absolutely! Reflecting on my own experience, a balanced setup makes a huge difference for daily driving. It’s best to avoid being extreme on either end.

15

The stock turbo for the 7.3L Powerstroke typically is a T4 turbo with a size around 1.00 A/R. If you’re looking for more power, upgrading can definitely help with horsepower gains and spool response.

16

What kind of power gains are we talking about here? Is it worth the cost of the upgrade?

17

Upgrading to a larger turbo can yield around 100 to 200 more horsepower, but you might sacrifice some low-end torque. It’s a balance, really.

18

But isn’t that the case with almost any performance upgrade? More top-end power could still be beneficial overall!

19

Don’t forget about fuel efficiency! While you might get more power, if you treat it like a race car, you’ll spend a lot more at the pump too.

20

That’s super true! Have you experienced any drastic changes in your MPG with a turbo upgrade?