Noob questions here: Why does the boost gauge go from -10 to +10, how can I have -10 Boost? How much boost should my boost gauge read at WOT on the stock pulley? How much boost should I be getting at WOT with the stock pulley, 3.5, 3.4, and 3.2? It's probly going to vary between cars but what is a good estimate?

How much boost should a boost gauge read if a boost gauge could read boost? lol say that a few times quick.

 

Factory pulley will make somethin like 7 psi or so but the guage aint easy to read. on the negative side is when your still running on vacuum. the boost spools up as your rpm's do

 

7 psi would be +7 on the boost gauge?

 

That is correct

 

My boost guage goes from -70 to +70, but that's kPa.

Thanks for answering that question. I was kinda wondering the answer to that myself.

 

When your engine isn't under heavy load, your bbv opens allowing air to bypass the s/c, so it runs like a normal NA engine (which operates between about 30 and 0 in HG - what would look like the 'negative' side of a pressure gauge). At idle, it should be way 'negative' (high # of in HG), and the harder you press the gas, the closer to 0 it should get until your bbv closes, and the s/c starts making boost- then you'll go positive.

 

darn Canadians....[8D]j/k.

 

Ah that makes sense. Thanks for the responses.

 

I know you were kidding but you should take a look inside your owner's manual. In the section where it shows the dash with all the labels and symbols and such. Take a look at the difference in labelling on the Canadian cars. Some of them are hillarious. Of course they do that to take the metric system into account, but also because of Quebec where the main language is french.

Apparantly they think labelling the gas guage "E" and "F" is too confusingfor people who speak french.

By the way, nobody I know of in Canada measures air pressure in KiloPascals (kPa) other than the weather channel. LOL.


Thanks for clarifying the boost question. Like I said before, I was kinda curious too.

 

They don't give us the different clusters in the States, it shows a dash panel and says in a caption: "United States Model shown, Canadian model may differ." HAHA. I have seen a Canadian dash though, and you're right...it cracks me up seeing the fuel guage...I went to Nova Scotia, PEI and NB on a bicycle tour one year and to do that, we have to go through Quebec, the first McDonald's we stopped at the cashier asked something in French, and I gave her this BLANK look...her exact words: "Oh, I'm sorry, I can't tell you non French-Speaking Canadians anymore...NEXT PLEASE." I told her I was American, (something I wouldn't do now) "Oh, I'm sorry once again, can I take your order?" It was kind of akward.