Which is better..A boost guage with vac and boost or just boost.Does it matter?

[95EclipseGST]

I am getting a boost guage tommorrow and i want to know is there any benifit to a boost guage with the vac and boost or just get one with boost? Im getting an autometer cobalt and they are expensive.I just want to get the right thing. Thanks

 

[Drifter00]

Yes it would be better to get one with vac also. This will let you know how well your engine is running and also if you have a vacuum leak, it will be easier to see and diagnose because you can see the gauge.

 

[L2RTSiAWD]

Yes it would be better to get one with vac also. This will let you know how well your engine is running and also if you have a vacuum leak, it will be easier to see and diagnose because you can see the gauge.

Exactly get a 30-0-30 gauge

 

[Defiant]

^ ^ ^ Ug reed.

Also, though not really practicable with a small dash gauge (they're not reactive enough):

http://www.iwemalpg.com/Vacuum_gauge.htm

 

[98RedGs]

Exactly get a 30-0-30 gauge