Intake Rumor

[robertb6963]

I heard a rumor that putting a performance intake on a diesel is bad for the motor. This seems kinda dumb to me, I mean more air/more fuel=more power.

Is this just a urban legend?

[More Power]

If the aftermarket intake allows hotter underhood air to enter, yes, it'll hurt performance. If the air filter element allows more dirt to enter the engine, yes, it's a bad choice. If neither of these happens, they're OK.

I have noticed a trend over the past 6-12 months, in that more sealed air box housings are being advertised. Banks & Volant are two examples of these.

Jim

[gmctd]

Not only that, but DP mag ran a series of tests with the am kits against the factory setup, only to find that the factory engineers actually did know more than the street bunch, in every category.

[killerbee]

If the aftermarket intake allows hotter underhood air to enter, yes, it'll hurt performance. If the air filter element allows more dirt to enter the engine, yes, it's a bad choice. If neither of these happens, they're OK.

I have noticed a trend over the past 6-12 months, in that more sealed air box housings are being advertised. Banks & Volant are two examples of these.

Jim

AMEN

I measured an inlet air temperature, IAT, of 185 today, and wasn't even towing. That get's up to 240, and the turbo doesn't even want to spool. That 185 was with a stock 05 intake. With AFE it was 10 degrees better. With an older volant, still over 160. I have not yet seen an aftermarket intake do well in this truck, I have tested 5 of them.

With an intake I built, it was 140. I am hoping to bring that down to 110-120 with a little more work. The difference in turbo performance is night and day.