How do i work out what boost its running?

[petebann]

Hi, just bought a pulsar but the chap i bought it off wasn't too 'informed' of the spec. How would i find out what boost its running/set at?? Is this the -7, +7 gauge?

cheers, pete

 

[azboy]

if u mean the standard gauge its not the most accurate, ur best to get a aftermarket gauge to keep a eye on ur boost.

 

[Fazz]

the +7 gauge means .7bar which is standard.

If it goes over this obviously its running more..

However the gauges are very old and cannot really be relied on at this stage...

 

[Big O]

+7 on that standard gauge is near 1bar

 

[geetee]

standard gauge reads in mmHg x100

So 7 on the gauge = 700 mmHg = 13.54 psi = 0.9333 bar

If it's going past the 7 then you have no idea and might even have a pipe of somewhere allowing it to run unlimited boost. The motor will not last very long like this!

Check all your pipes are connected as per:

Then work out how the previous owner(s) have increased the boost and fit an aftermarket boost gauge.

I wouldn't rag it until you definitely know what boost it's running, it could end up being very very expensive.

Cheers
Graham

 

[Fazz]

My bad....

And there was me thinking my gauge was reading low... when avc-r was saying more..

cool.

 

[petebann]

very good advice many thanks. At present its not even hitting +7 so thats good but yep the gauge is near 16years old so maybe investment in a new one could be a good idea!!

thanks everyone