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HV3 Installation

This is a discussion on HV3 Installation within the 3.8L V6 Naturaly Aspirated (L36)(L26) forums, part of the W Body Tech category; Is there a write-up on how to put these in or can anybody explain the process?...


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Old 07-15-2008, 07:08 PM   #1
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Default HV3 Installation

Is there a write-up on how to put these in or can anybody explain the process?
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Old 07-15-2008, 07:10 PM   #2
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Default Re: HV3 Installation

Remove UIM bolts (preferably in reverse tightening order). Remove UIM. Remove old intake runners from UIM. Insert HV3. Place UIM back down on LIM. Reinstall bolts to proper torque following proper pattern.

You'll have to remove a few nuts that hold the fuel rail down too so the UIM can lift up.
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Old 07-15-2008, 07:25 PM   #3
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Default Re: HV3 Installation

Is there any negatives to the HV3
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Old 07-15-2008, 07:39 PM   #4
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Default Re: HV3 Installation

Ummm... you have to install it? It doesn't make you coffee in the morning?

To make the best use of it, you need raised shift points since its purpose is keeping the engine from falling on its face in the upper RPMs (especially a little past the stock redline).
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Old 07-15-2008, 08:17 PM   #5
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Default Re: HV3 Installation

er rockers help the hv3, also some exhaust mods like a downpipe and plog will help too
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Old 07-15-2008, 09:25 PM   #6
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Default Re: HV3 Installation

Remove fuel lines from fuel rail
Remove 4 10mm fuel rail nuts
Unplug injectors harness
Remove fuel rail with injectors still attached
Remove intake from TB
Unplug IAC, MAF and TPS from TB
Remove UIM bolts, there are about 12
Lift UIM and slide it under the main harness with throttle cable still attached
Remove old gasket, it's held on by 4 tabs
Remove stock runners by just pulling it out of the UIM
Install in reverse using new injector o-rings
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Old 07-18-2008, 10:37 PM   #7
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Default Re: HV3 Installation

zzp has a link to a write-up...
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