Help with boost gauge
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Car Info: '03 Wrx Wagon
Help with boost gauge
Just intsalled an omori boost gauge and needle bouncing between 17-21 inHg at idle, i know that in within spec but i wanna know if there is supposed to be any bouncing atall or if it is supposed to have a solid reading.thanks
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Car Info: '03 Wrx Wagon
it is a mechanical gauge, not spike or creep(if i understant creep properly), it is only when the car is at idle i get a fluctuation in the needle, thanks
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Well the direction given with the gauge said install it between the surge tankand the fuel pressure regulator, but i seen subaru installation from their service manual for the boost gauge and the said off the hose from the blow off, which is where i see most people puttin git anyways, the only directions i did not follow is using the orifice wiht the gauge, this weekend when i have time i am going to bet some new hose to try and make the orifice fit and see what hapens then
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just an update, put the omori Y-joint in and its works fine now, no fluctuation. ahint to those who do purchase, the hose supplied with the gauge can fit into the hose from the blow off, if you want to do it that way
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Just installed my boost gauge this weekend. Initially T-taped it into the line coming directly from the compressor housing. Boost worked but there was no vacuum. So I tried it at off of the BOV hose.....it worked....I got vacuum.
Here are my questions;
1) At idle, I got a constant 18 of vacuum reading. Is this correct?
2) When will I see the 14 psi of boost? At what RPM range. I have only taken it up to about 4500 - 5000, and saw about 11 psi. Is this correct?
I just need some clarification if the numbers I'm seeing are OK. Please advise.
Thanks.
Cuong
Here are my questions;
1) At idle, I got a constant 18 of vacuum reading. Is this correct?
2) When will I see the 14 psi of boost? At what RPM range. I have only taken it up to about 4500 - 5000, and saw about 11 psi. Is this correct?
I just need some clarification if the numbers I'm seeing are OK. Please advise.
Thanks.
Cuong
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Registered User
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From: Miami, Fl
Car Info: '03 Wrx Wagon
Acceptable reading for vacuum is 17-22 inHg so you seem fine, however mine gives me a constant reading of 20 (unless A/C is on then it drops) but as far as how much boost you are seeing, in third and sometimes second depending on how fast i am already rolling i see up to 14psi, but in first i only get about 10-11
if i am not mistaken max boost comes in at about 6000 rom (give or take on a stock car) and then drops off a little, but you should be seeing the stock 13.5 punds of boost, maybe you have a leak somewhere
if i am not mistaken max boost comes in at about 6000 rom (give or take on a stock car) and then drops off a little, but you should be seeing the stock 13.5 punds of boost, maybe you have a leak somewhere
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thanks for the info. I don't think I have a leak because it's idling just fine....the needle doesn't jump around. But the leak suggestion is a good one. I'll keep me eyes out for that.
I'll check to see the boost at 6000 RPM. I've also read that 14 psi can only be seen in 4th and 5th.....is this true?
I'll check to see the boost at 6000 RPM. I've also read that 14 psi can only be seen in 4th and 5th.....is this true?
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