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Sounds good, but be careful that you don’t run the cost up for an interim turbo. Otherwise, you might as well get the KC.

Just make sure you limit fuel. With an .84 housing and a 66 wheel, you’re asking a lot out of that 3/16 turbine shaft and you’ll definitely have enough fuel to overspeed the compressor wheel.

My mistake. It looks like they don’t have the housing, but he OBS turbine is 70mm and I’ve read where some have machined the housing. Might be worth giving KC a call.

That’s sounds like a good plan. I hear some good feedback with that KC replacement turbine. They also make a 70mm turbine and 1.0 housing if you can splurge a little more. That would make for the best performing stock turbo around. Make sure your rebuild kit includes a 360 degree thrust bearing.

Now let’s look at the flip side of that coin. I’ve talked to many who’ve spent a lot of money and time installing bigger injectors lookin for more speed and towing power only to be disappointed with smoke and egts. At that point they have 2 options: 1, pull fuel and HP or 2. Add more air. I was...

I think an .84 housing is gonna be too tight for 238/80s. As Outlaw Bill mentioned, your injectors can be dialed back to work with any turbo, including a stock turbo. If an SXE is your ultimate goal, just detune the sticks until you can afford a T4 and run your stocker. Buy once, cry once...

I have the same issue with my 1023 tunes, most noticeable while towing. Unfortunately, a lot of these Tuners put a 30 day limit on revisions and I‘m done spending money on tuning.

I bought my POS’ in 2013, so I don’t have any experience with Grays injectors. It funny how many nut swingers Tim had.

Where’d you send them? I’ll be watching to see your results, because mine haze on 70 degree mornings.

Having a PHD in quantum physics and fluid dynamics...not, my initial thought is: How is putting a brick in a toilet tank gonna help flush the big turds down? :flush:

Not unrealistic at all! With the right dyno, you can simulate different loads and driving conditions while changing nozzles, tuning and turbo configurations. I’m sure that’s not in your budget and do appreciate the time, money and efforts you’re putting into all of this testing.

Unless you’re trying to use more than 500hp to tow, there should be zero difference between 205/80s, 238/80s or even 400/80s. It’s all about managing and matching the pulse width to the purpose. I think a better metric to measure on the dyno would be which combination produces the best sustained...

I’m running 200/80s, 364.5/74/.91 on 35”s and 3.73 gears and it’ll tow anything I hook to it without having to manage smoke and EGTs. No need for a tow tune. My only limiting factor is how much stress do I want to put the drivetrain through. I just spent $500 having new splines welded to my...

This is true! The KC line is a great alternative for those who can’t/don’t want to afford a T4, but to claim the performance is the same is flat out wrong!

If towing and an occasional wot run is what you’re after, a 364.5/74/.91 will work great with those injectors. If you want to sacrifice a tiny amount of towing ability in exchange for more top end performance, then you can go with a 366 or 369. The point of switching to a T4 mount is to be able...

You articulated it better.

The pedestal is different to accommodate a T4 flanged turbo. Depending on who’s kit you use, the oil is supplied and returned by a hose. Carson Stauffer and Irate Diesel kits both use the same oil feed, but the CSD kit return oil to the stock return vs. Irates kit requires removing a freeze plug...

MAP sensors are expensive. There’s no reason to subject them to pressures beyond their design limits.

That video wasn’t meant to depict normal towing, just showing what it’s capable of. Anyone who ties like that normally deserves to throw a rod. Bouncing off the surge line? Maybe, but it’s also a great indicator of the turbo’s drivability and shows that EGTs will NEVER be an issue at normal...

I haven’t mikeeg002 post in a while, but this is his 366/74/1.0 with 238/100s making 15 psi at 1500rpm while towing heavy. https://youtu.be/powB5VLW0_s