Heater Grid a bottleneck when other bottlenecks removed?

[RamIt]

Attachment 9295

So this actually visualizes what I was saying. The grid isn't the restriction, but the casting is where the problem lies. All things considered, yes that opening looks significantly larger; but you'd need to compare volumetric efficiency between the before and after to really determine the level of improvement.

No I disconnect the EGR before I left the dealer lot. LOL I had a 27.5 they bough back which was a test bed.

I'll have to check with Kurt on the restriction. Hard for me to swallow. You could barely see through it. The grid shown here looks different as i remember. It's open more

I wish I could do that without my truck having a meltdown. Just waiting to see what the universe holds for me on that front.
But as far as differences on heaters go, I cannot comment as this is the only style I've ever seen.

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[MC250r719]

So this actually visualizes what I was saying. The grid isn't the restriction, but the casting is where the problem lies. All things considered, yes that opening looks significantly larger; but you'd need to compare volumetric efficiency between the before and after to really determine the level of improvement.



I wish I could do that without my truck having a meltdown. Just waiting to see what the universe holds for me on that front.
But as far as differences on heaters go, I cannot comment as this is the only style I've ever seen.

That casting is part of the grid heater, with a grid heater delete you get a new casting. Unless I’m looking at that wrong.


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[RamIt]

That casting is part of the grid heater, with a grid heater delete you get a new casting. Unless I’m looking at that wrong.


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I may be wildly incorrect here, but I'm pretty certain that the picture you shared is a grid heater plate that's been machined to remove the heater.
Regardless, it's similar to what is sold on the aftermarket.

https://www.cumminsforum.com/forum/0...whos-done.html

Hate bringing this site here, but for the sake of this discusison, page 1 clarifies my point.

Most that have removed the heater have done so in response to other factors; removing the heater by itself has netted no noticeable improvements.

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[TexNeck]

Best reason to delete grid heater is if it’s caked with soot from egr. Flow wise unless you are pushing real big numbers 8-900+hp then it’s really not a restriction.

with that being said there are several mods that are not “needed” so do what you’d like and enjoy it!

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[Camp2SeaDoo]

These trucks will still start in 0 degree temps without heat. It may take a second for cranking but it will. Make sure your batteries are in good health.

i would be thinking the turbo is your bottle neck point with opening things up. Are you stock or running a larger charger?

Stock turbo, Tex!

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