I'm looking into getting a boost gauge and eventually and EGT. I really like the style of the Defi and the Apexi ones, and they are both around the same price ($120). However, on both of them, the pressure goes from 0 to 30 PSI in 180 degrees of needle travel. Now I know I am never going to be running 30 psi. Hell, my system is going to be supercharged, so I'm sure it'll never see above 15. So when I'm boosting and I look at the gauge, the needle might nudge a fifth of an inch to my (hopefully) desired boost. Not very helpful information. Is there a gauge that is similar to the above mentioned ones, but has a smaller scale of numbers? Maybe something like 0 to 20 PSI in 270 degrees of needle travel? Thanks for any info or suggestions you can give me.

 

Autometer makes a 15psi boost guage, I believe. I know for sure that they make smaller scales.

 

Greddy makes a reliable boost gauge that will do what you want - scaled down so that you can see the boost up to 1 bar easily. I have the 52mm one and like it.

I have seen brand new Autometer boost gauges out of calibration and other ones that were off by a couple of psi. That is unacceptable to me so I won't buy their gauges just their gauge pods.

 

If GReddy does make one...I would definately go with them over autometer, even if it does mean you will have to tape a BAR to PSI conversion table on your sun visor.

 

omori makes a mechanical boost gauge with increments of .02 kg/cm. goes up to 1.6 kg/cm.

 

Thanks for the replies, but I looked on Greddy's site and all the boost gauges went to 2 bar (basically 30 psi) in 180 degrees. This is the same as the Defi and Apexi ones I dislike because of the scale. Is there a different Greddy gauge that they don't show on their site? Any links to pics of that?
Thanks

 

I'm using a 20 psi autometer. Mine is pretty much right on with my avc-r readings (after conversions of course)

 

The Greddy gauge displays differently than what you are thinking it does. It goes from the minimum vacuum to 1 bar of boost in 180 degrees. Yes, it is a 2 bar gauge but it does not get to the 2nd bar until it has gone 3/4's of the dial. Here is a photo of the gauge


I can get you the gauge for $119 plus a few dollars shipping, in either black or white face.