I have yet to see a set of PMR's blow on the strip or dyno...

Its usually about two weeks later just cruising to the 7-11 for a slurpee...

 

Glad you liked it! The real question is...was it ACCURATE?

 

He will be the hero of us married men for an eternity! A NED KELLEY of the Powerstroke community!
Jim...& fat Monty

 

Great experiment. Thanks for sharing! Been watching this build and anxious what you learn.

Have you got your DD tunes 'smoke free' yet? How is throttle response, egt's, etc?

I hope to do 250/200's later this year, but I have FR's and plan to do studs, springs, etc, etc... It would be nice to know if 'seasoned' heads will hold up w/o studs though!!

 

What ICP/IPR dc #'s are you seeing now?

 

Actually..... no. Sorry.

I do want this engine to hold together for a long time. Which is why I have the timing pulled way back, and I've been extremely conservative on the fueling.

 

My DD tuning is as of yesterday pretty much dialed in. I knew I would never get a set of 200% nozzles to idle exactly like stock.... however, I've come pretty damn close. It's actually hard to tell now most of the time.

Smoke is very little, even when I punch on it. A couple weeks back I towed a TT over a couple of mountain passes. I've made these same runs several times towing ATV's (a much much much lighter load). Yet this time I did it with far cooler EGT's and no smoke issues.... all with a much heavier load and more power on tap.

I'm glad I did them. Although they have been a little temperamental to tune. These injectors respond much more to small changes than stock injectors.

ICP I can hold just about any pressure I want. Right now I'm limiting it to 3100 psi, and it can sit there at WOT with just under 40% duty cycle... on a stock 17 degree HPOP.

Of course, I've been only maxing out at 1.75ms pulsewidth at WOT this whole time. Puts me at about 300 or so rwhp. So mostly feels like a stock truck with a strong street tune.

 

WHO, CARES, LOL. You'll be just fine. If not?? well! Let us know.

 

Thanks for the reply Curtis. I thought vanderchevy's truck idled like stock with no smoke, only 'smelled' a little rich after 30min of idling while BS'ing with the AC kicking. However, it smoked waaaay more than I could tolerate with the shot-out 4294 and Cales '1rst revision' tunes. When I drove his truck, I simulated passing a car on a 2 lane road and basically simulated how to put said car in the ditch!! I'm sure his new GTX4294 is a significant improvement due to faster spool-up and I'm anxious to see how much that and some tune-tweaking will clean it up for him.

THAT, is good info!! Can't wait to see how adding more fuel affect this, but suspect not gonna be too much. I really like the 'cheap' 450hp build concept!!

I usually get out your way 2-3 times/year, I'd love to visit with you next time I'm out there! (I'm rooting for ya - don't blow it up!!!!!!!! )

 

Do you have a light, medium and heavy weight tow tune or do you just run the same tune now matter what you are towing?

A little bit OT...but you might be interested to know that the F150 Ecoboost knows when a trailer is connected and it calculates fuel mileage to empty based on the fuel usage while pulling a trailer. Unplug the trailer and the mileage to empty increases based on what the mpg was before the trailer was hooked up. This by itself isn't really that big of a deal but I wonder if the PCM changes to a different tune for use when towing vs when unloaded? If so, that would be pretty interesting don't you think?

I hooked up AE to the Ecoboost and watched some live data but I had no idea what I was looking at so nothing jumped out at me. I have a trailer emulator, which is really a device to test trailer wiring and I plugged it in and took the truck for a drive. Seemed like the turbos were making more boost and seat of the pants felt like there was a bit more power but it was minimal if anything at all...

I still thought it was interesting and I wondered if the new Super Duty models might use different tunes depending on whether or not a trailer was attached.

 

Currently just one tune. Just had different revisions of it while tweaking timing, ICP, etc in very small increments. I lost count of how many reburns I've done.

Would be interesting to know. Personally I haven't even looked at any info on the Ecoboost motors.

 

After messing with these injectors and the tuning, I see no reason why these should ever be smokey pigs. Of course, it's harder to tweak these injectors with tuning and dial them in spot on than it is with stock injectors or even aftermarket injectors with smaller nozzles. But once it's dialed in, it certainly performs.

I don't know yet. I'm sure I'll probably be reaching the limits of the stock HPOP with my power goal. We'll see.

Most definitely. I'm always up for meeting other PSD owners.

 

This is what I think will happen. I can't remember the member's name, but after a weekend GTG of either Dyno testing or drag racing, his block gave out on the way home. Hope it doesn't happen!

 

Update:

Just got back home from making some runs on the dyno. Made 408hp.... still rocking the PMR's. Those are corrected numbers. I didn't get to see the uncorrected ones.

Anyway, motor is still alive, and I'll be at Truck Fest on Sunday to make some passes. I need to make a few tweaks to timing.... it was pulled waaaaaaay to far back. That's what I get for being too cautious.

 

as long as you dont get widows 8. 408 is not to bad.