Tuning the 7.3 in current times

Magnum PD

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Didn’t they use what forged rods they had left in the last 03 engines?
 

Addicted4

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Just pick a tuner for stock injectors I don’t think it matters much at 300rwhp levels. Trans shifting will be about the main difference along with pedal sensitivity. Skip the turbo on stock fuel as well the money could be used towards regulated return, in-tank mods, post filter, u fixing up pipes, valve body etc..

I to run ts chips just cause I had one but the standard is hydra plus the ease of emailing revisions or when modifications are made that need tuning adjustments.
 

DEEZUZ

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I've got a 96 engine that I bought 10 years ago still untouched. That's how long ago I thought about blowing my PMRs...

Still good to go.. Lmao
 

dsberman94

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My PMR motor was fine when I took it out. Should have sold it but what I had covering it leaked and she got full of water.
 

RascalMafia

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What was the thought previously with tuning and the PMRs? Too much timing / cyl psi down low would kick a rod instead of a headgasket?

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JoeDiesle

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I have a sept 01 build date... came will forged rods. With tuning.. keep timing in check and make TQ higher in the rpm range, will help keep the pmr's in the block.
 

joebuck

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What was the thought previously with tuning and the PMRs? Too much timing / cyl psi down low would kick a rod instead of a headgasket?

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Ya the previous thought(some experienced) was to much timing down low with PMR rods and a heavy foot you would window your block, forged rods seem to not have this problem, I know there is a spot you can look through on your motor and if you see a nut on a bolt you have “X” rods and if you see the head of a bolt you have “Y” rods, not sure anymore which is which or where to find that “window” to see in there but I remember there is a ton of threads and YouTube videos on it that shows it.

I haven’t been around the 7.3l tuning world in a long time but I used to run SDK and 1023 tuning back in 2015ish when I had my 7.3 and they were great tunes especially paired with a hydra.
 

DEEZUZ

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I've seen/heard of them let go regardless of tuning/stock sticks.
 

79jasper

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Yep, seems many let go on stock injectors.
It's not like the early ones that had itsy bitsy baby injectors.

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mcnance865

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Few things:

-- PMR rods started in 2001, but there are quite a bit of 2001's that came w/ forged. There are probably a handful of 2000's with PMR as they did a test run. All 94.5 - 99 are forged rods and the vast majority of 2000's are forged rods also.

-- The PMR issue is mainly cylinder pressure and dumping too much fuel and/or too much timing too low in the rpm curve. This issue has been figured out by all the tuners I listed earlier. Notice that DP was not on that list...

-- If staying with stock injectors up to AC code 160/0, then just do a KC Balanced Assembly for the turbo. It should work great. I would recommend the 160/0 AC codes anyways as they are a "stock" injector for the high output T444e, so you can buy them at any International Dealer. This with hydra tunes will make a world of difference and will still be safe on PMR's.
 
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