Boost Gauge - R33 - Is The Correct ?

[Munkyb0y]

I have an aftermarket boost gauge on my R33 RB25DET.

The gauge seems to work fine. But i'm not sure if it was installed onto the correct vacuum hose.

It's spliced into the hose that runs from my BOV. I read that it should be running off the other line that leaves the intake manifold (going the the factory boost gauge unit).

Does it matter, seeing as it works ok?

Running on stock boost, the gauge shows around 8psi at the top end.

Here's a pic.

Edited June 13, 2006 by Munkyb0y

[Evil]

i've spliced mine off the standard boost gauge's vacuum hose...

[Munkyb0y]

Yeah, that's the way i would have done it. But this was already done when i got the car.

I think i'd be better off re-doing it off the factory boost gauge line.

[WazR32GTSt]

don't worry about it - its fine

[Munkyb0y]

don't worry about it - its fine

Thanks Waz.

I was told that if i leave it there, it may increase the volume of the vacuum line going to the BOV, and might reduce it's response in opening. Or the T-joint might be restricting the flow to the valve.

It's working fine as far as i can tell.

Does this line play any part in air/fuel mixture ?

Also, while i've got ur attention (anyone), what is this plug for. Why is nothing connected to it?

Edited June 14, 2006 by Munkyb0y

[Munna1]

I think the plug is used if you have an automatic but im not sure what it does

[Munkyb0y]

I think the plug is used if you have an automatic but im not sure what it does

So it's not meant to be connected to anything? Can anyone confirm this?

Nice website Munna1

What do you think about the way my boost gauge is connected (pic in first post).

[J_Red33]

Yeah it's a throttle position sensor. I'm betting ur car's a series 1 R33. The manuals in a series 1 didn't use the sensor, but the auto's would. Series 2 used the TPS on manuals as well but it's a 2 plug setup instead of a single. Nothing to worry about mate

[Munkyb0y]

Yeah it's a throttle position sensor. I'm betting ur car's a series 1 R33. The manuals in a series 1 didn't use the sensor, but the auto's would. Series 2 used the TPS on manuals as well but it's a 2 plug setup instead of a single. Nothing to worry about mate

Yep series 1. cheers

What do you think of the boost gauge line tapping into the main vacuum line that runs to my bov?

I just want to know if it might cause any probs there.

(pic in the first post)

Edited June 15, 2006 by Munkyb0y

[WazR32GTSt]

mate as i said don't worry aobut it

no it won't cause any change in function of your bov

no it won't change your air:fuel mixtures

yes it will show you the correct boost pressure

have a coke and a smile now

[Munkyb0y]

mate as i said don't worry aobut it

no it won't cause any change in function of your bov

no it won't change your air:fuel mixtures

yes it will show you the correct boost pressure

have a coke and a smile now

I dont like coke.

But i might go have some caffeine

cheers

[WazR32GTSt]

pepsi then? as long as you know its all good, then it really is all good