Hi all, any chance of some info re: the right vacum hose to put on a boost guage. Mine seems to rattle ? thanks.

 

It's probably the needle that's rattling, because the air reaching the sensor, via the relatively large vac hose, is too uncontrolled. You need to fit a small restrictor in the vac line (from inlet manifold to gauge) as close to the gauge end as poss. This will have the effect of calming the boost signal and damping the needle's response...

 

Hi, did you use the fitting kit that came with it? I have the smoke series auto gauge. It's fine, no problems. I used the plastic 'T' that came with it, it has a metal restrictor in it.

 

already on the car the guage was. it started when me m8t looked at it and broke off one of the t piece's in the engine bay

 

Ah, so that may be the problem then.

 

ahh now I have used a smaller pipe coming off the guage and used a t piece to connect to the bigger hose comming from engine bay , oh and blocked the spare hole . And wow it seems to work. I took it out for a spin all ok

 

Cushty!