where do you hook up for boost? The instructions for both the btm and my boost gauge mention a boost source on the intake manifold or on the engine.

Where the heck can i hook up to?

btw, this is for an L98...


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DeathMobile, aka TheWraith

 

You hook them up to a vaccuum port on the manifold. I have a superram and hooked them up to a 3/8 port on the back of it.
-Matt

 

On a stock plenum the manifold vacuum ports are located at the rear right side of the plenum. You can tap into one of the hoses with a "T" fitting.

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Tracy /AKA IROCKZ4me

• 355 cid
• AFR heads
• Arizona Speed & Marine hydraulic roller cam w/ AFR hydra-rev kit
• modified SLP runners
• TRW forged pistons/ceramic coated
• fully balanced
• Edelbrock headers/ceramic coated
• SLP cat-back
• Paxton supercharger
• Nitrous Express nitrous oxide

My IROC-Z
EFI Performance Club on Yahoo

 

thanks for the help. I tapped into one of them, and the gauge is working, but it seems to be reading 20 on the vacuum side at idle.

Is that normal???

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DeathMobile, aka TheWraith

 

That's good vacuum. Most engines with stock or near stock cams will idle with around 18"-22" of vacuum. Camshafts with bigger duration numbers & tighter lobe seperation will have more overlap & therefor lower vaccum at idle.

------------------

Tracy /AKA IROCKZ4me

• 355 cid
• AFR heads
• Arizona Speed & Marine hydraulic roller cam w/ AFR hydra-rev kit
• modified SLP runners
• TRW forged pistons/ceramic coated
• fully balanced
• Edelbrock headers/ceramic coated
• SLP cat-back
• Paxton supercharger
• Nitrous Express nitrous oxide

My IROC-Z
EFI Performance Club on Yahoo