So a buddy of mine has a 94 IDI that he dropped the powerstroke from my parts truck 95 into for his dad. I gave his dad the motor for free. My friend, however is tired off fixing the thing for his dad and has washed his hands of the truck. Recently the stock exhaust rotted out and his dad replaced it with 2in pipe from the Irish parts store.

Question is how hard is this going to be on the motor? I'm sure back pressure and egts are going up. But how much? Truck is a farm truck and it gets beat. 5th wheel way past what it should do, often. I tried to tell his dad that he might be better off with the rotted stock exhaust than the 2 in but he listens to no one.

So how bad is this really? Truck has no gauges, nor will the money ever be spent on them.

 

It'll feel like the EBPV is closed, or partway closed, all the time. It'll feel like he's dragging two tons of sand in a shipping crate behind the truck 100% of the time. He'll get sick of driving it that way, and one of two things will happen:
* He'll come to his senses, and do the right thing (Diamond Eye downpipe and 3.5-4" downstream), or
* He'll stay in his trench, and not want to drive it, and you can offer to "take it off his hands" for a song.

 

If he is treating it like that then you will be hard pressed to convince him of anything. It may be less of a headache to just let him be. My dad does the same thing so I understand the frustration.

 

is this an IDI non turbo?

 

Exactly.

Love the explanation too.

 

It was an IDI turbo. It had nearly 500,000 on it when the oil seal went bad in the turbo. At around 600,000 it was so bad that it was drinking a couple gallons of oil every 800 miles. Then one day the truck just wouldn't shut off. And it made it about 50 more miles down the road. All the while there was complete and utter refusal rebuild the turbo.

I can't say I didn't see this coming. It's all but written in the stars. I gave him the motor because it was just sitting there in one of my rusty parts trucks. And growing up he was like a second dad, the one that taught me how to bail hay and wrench on stuff. So i hated to see him without a truck.

I guess I'm just hoping that he's not going to fry the engine because he's become to cheap and lazy to fix it right. After all I'd also feel bad watching a perfectly good powerstroke with under 150,000 miles die because of something stupid.

 

Can I ask how he connected that? I'm curious.

Like did he take the time to buy a 3.5" to 2" adapter and then run it out like factory? Or did he buy two 3.5" to 2" adapters and put a short piece of 2" pipe between a section of factory pipe?

 

Perhaps you could imply/suggest a parallel between the size of a fella's exhaust and his manhood.....

 

I didn't crawl under the truck to look. But it exits as a two inch. My buddy said he ran 2 inch from the down pipe back, and a 2 inch muffler. So I'm assuming he bought an adapter. It's amazing he won't fix anything on the truck. It has all sorts of little problems and he doesn't care. As soon as he gets a hole in the exhaust and the truck gets loud he's got to fix it, and poorly at that...

 

So it "was" or "is" a idi?
You mentioned a psd too.

 

Sounds like it was an IDI truck and now it is a PSD

 

it was an IDI-T truck. it now has a powerstroke in it.

 

3 inch has almost twice the flow of 2 inch