Random Diesel Ramblings-Post Them Here!

[PenguinLTZ]

Officially turbo. Even after the PVC reroute and flush, my cold side piping is leaking oil out of it... Also, maintains speed occasionally, after I lift the throttle.

Gotta decide if I'm sticking with VGT crap, and and dropping in a stock or upgraded, or doing a fixed vane conversion.

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Tough call! VGT is amazing for turbo lag, when it's working, but damn! The price. What will you do, put an exhaust brake on??

Just found a dyno chart of the 362 on an LML... Spools 400 - 500 RPM quicker than the stock turbo...

It's shit like this that makes it a hard decision, lol

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Well, I only speak from the stock, class 8 truck diesel world. 2010 EPA engines (Cummins, DDC, etc) with VGT outperform their previous iterations, hands down. It only seems to make sense (to me) that you could spool a turbo faster, having decreased the surface area of the vanes to spin the bitch. The decrease in DPF ashing after the VNT and VGT was significant.

 

[drperry]

Officially turbo. Even after the PVC reroute and flush, my cold side piping is leaking oil out of it... Also, maintains speed occasionally, after I lift the throttle.

Gotta decide if I'm sticking with VGT crap, and and dropping in a stock or upgraded, or doing a fixed vane conversion.

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Tough call! VGT is amazing for turbo lag, when it's working, but damn! The price. What will you do, put an exhaust brake on??

Just found a dyno chart of the 362 on an LML... Spools 400 - 500 RPM quicker than the stock turbo...

It's shit like this that makes it a hard decision, lol

Sent from my SM-G930W8 using Tapatalk

Well, I only speak from the stock, class 8 truck diesel world. 2010 EPA engines (Cummins, DDC, etc) with VGT outperform their previous iterations, hands down. It only seems to make sense (to me) that you could spool a turbo faster, having decreased the surface area of the vanes to spin the bitch. The decrease in DPF ashing after the VNT and VGT was significant.

All our old cats will make more boost way quicker than any ISX we have in our fleet... Especially the twin turbo ones.

Emissions, though played a huge part in variable turbos... For emissions equipped vehicles, they're definitely the way to go. It's easier for them to do regens and such.

It's why the 6BT still uses an HE351 turbo... All they did was slap a VGT exhaust housing on the same old common rail turbo... To meet emissions.

Properly tuned, fixed vane turbos will run just as good, or better than VGT's... Though, VGT's, when dealing with single turbo setups generally do have a broader operating range. Especially with generic factory tuning.

And turbo vane tuning is minimal for the LML's, so the factory spool rate is pretty much all you get... If there was a drop in VGT that could spool as fast, I would go that way, but they're all designed for more power, and they spool slower.

For towing and daily driving on a 9000lb truck... The faster the spool, the better, lol.

The vanes are 100% closed when quick spool is required... So unless you change the slope of the vanes/rings your spool is always the same.

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[geektoad]

So finally an update...the mileage with the trailer out to Wisconsin was about 11mpg overall...10ish over the mountains and 12ish in the flatlands. This was with the cruise set 65 on the interstates, and maintaining whatever the speed limit was if less.

PS. The Ride-rites definitely made a noticeable difference!

 

[drperry]

Very nice! I'm looking forward to getting my fuel mileage back, lol

That's better than I'm getting... Unloaded, lol

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[OldCracker29]

So finally an update...the mileage with the trailer out to Wisconsin was about 11mpg overall...10ish over the mountains and 12ish in the flatlands. This was with the cruise set 65 on the interstates, and maintaining whatever the speed limit was if less.

PS. The Ride-rites definitely made a noticeable difference!

What route did you take through Ohio?

 

[geektoad]

So finally an update...the mileage with the trailer out to Wisconsin was about 11mpg overall...10ish over the mountains and 12ish in the flatlands. This was with the cruise set 65 on the interstates, and maintaining whatever the speed limit was if less.

PS. The Ride-rites definitely made a noticeable difference!

What route did you take through Ohio?

we take 90/80 through the top part

 

[PenguinLTZ]

So finally an update...the mileage with the trailer out to Wisconsin was about 11mpg overall...10ish over the mountains and 12ish in the flatlands. This was with the cruise set 65 on the interstates, and maintaining whatever the speed limit was if less.

PS. The Ride-rites definitely made a noticeable difference!

Time to tune

I am glad you like the bags. Now you know why I put them on anything that tows

 

[OldCracker29]

So finally an update...the mileage with the trailer out to Wisconsin was about 11mpg overall...10ish over the mountains and 12ish in the flatlands. This was with the cruise set 65 on the interstates, and maintaining whatever the speed limit was if less.

PS. The Ride-rites definitely made a noticeable difference!

What route did you take through Ohio?

we take 90/80 through the top part

You were about 30-40 miles due north of me.

 

[Darkanion]

So finally an update...the mileage with the trailer out to Wisconsin was about 11mpg overall...10ish over the mountains and 12ish in the flatlands. This was with the cruise set 65 on the interstates, and maintaining whatever the speed limit was if less.

PS. The Ride-rites definitely made a noticeable difference!

What route did you take through Ohio?

we take 90/80 through the top part

You were about 30-40 miles due north of me.

He knew. *"HAMMER DOWN, DAMMIT!!!!"*

 

[geektoad]

Excellent. I will keep that in mind for next year. Yes, next year. They dropped the DEF tank this time and found the hose had a 90 kink in it. That was causing the issue when the level got low enough (but not low enough to set off the level warnings). They replaced the hose. Given that, I'm putting the delete on hold again. If this happens again in June, feel free to point at me and laugh heartily (more than usual ).

Forgot to mention that during the midwest trip, I actually got through a DEF low/fill cycle without going in to limp mode, so I think I'll probably be good to hold off till spring on the delete. I'm not sure if that's good or bad