FMU Removal.. (?)

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Mar 30, 2004 | 03:40 PM

Vendetta

Thread Starter

Registered User

Joined: Feb 2004

Posts: 231

From: Northeast NJ

Remove the FMU or leave it?

I'm swapping in some 42 lb/hr injectors and a tuned PCM. I'm pretty sure I should take the FMU out, correct? Just thought I would doubel check here. I don't think it's that hard.

Last edited by enisguy; Mar 30, 2004 at 10:31 PM.

Mar 31, 2004 | 06:00 AM

IDOXLR8

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Joined: Apr 1999

Posts: 2,784

From: Rochester Hills, MI

Correct.

Mar 31, 2004 | 06:57 AM

Willie

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Joined: Jul 1999

Posts: 312

From: Tucson, Arizona USA

At what boost level does a fourth gen MAF get maxed out, thereby causing a lean condition? Just curious. My third gen with it's 255 g/s maximum airflow, makes it a virtually useless system with boost. I understand the fourth gen MAF's register around 512 g/s???

Apr 1, 2004 | 12:05 AM

OBE1 95Z28

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Joined: Dec 1969

Posts: 4,950

From: San Diego, CA

My 10# Vortech setup maxs the MAF out at about 4,500 rpm on the dyno in 4th gear (M6). The car switches to speed density mode. My car dips "rich" right at the transistion from MAF to speed density.