yes, earlier in the post i said i'm currently running a 52mm greddy electronic 30 psi gauge and it performs flawlessly for 150 shipped and when lit up matches the factory evo gauge cluster very well. with the light off the numbers are white, light on they're reddish/amber but pretty close to the factory lighting. it even has a lttle redline starting at 23 psi which is perfect for my evo running pump gas.

 

Not to stray off topic but......

I like the Defi's for the ability to record peak values and the warning functions.


My only gripe is that they do not read above 28 psi, especially if I ever upgrade my turbo and run alky or race gas.

If and when that happens; I plan on getting these:


SPA Technique gauges.



http://spatechnique.com/dualgauges/dualgauges.htm

Not the best looking but I've heard that they are very accurate.

 

+1 on that... i bought defi cause i thought they were the best and it turned out that my gauge read low... i thought i was at 21 and i was only at 19 according to the dyno gauge at gruppe-s and eip..

 

You cannot ASSUME that the dyno gauges are any more accurate than the POS autometer ones without knowing what pressure transducer they use, if any.

Example: Dynoing my car at fynetune in Miami, their POS G.E. pressure transducer stated I was running 38psi boost, a number that was at least 5psi too high.

 

Interesting ttp

 

the greddy 60mm has a peak hold/warning function.

 

Vdo.

 

these new AEM's have an LED readout to 1/10th of a psi, but i'm not too crazy about the looks.

 

Guys DO NOT and I repeat DO NOT get SPA gauges. I loved these gauges at first, but they
are very unreliable. I had them in my integra and was sending them in to get fixed more
then I used them. The lights burnt out and sensors went bad like crazy. My friend has them
in his Sti and went through the same troubles.

 

Ooo AEM is nice. Never heard too much about those. Anyone use them? Are they accurate?

They are electrical too right?

 

they are electonic using a map sensor and even has a 0-5V out to hook up to dataloggers if needed. they just were released not long ago so not too many people are using them i would think. they also have a similar setup with an integrated electronic boost controller. i would think they are fairly accurate, AEM isn't a company that produces junk normally.

 

This was going to be my suggestion. For the same price as one Defi gauge, I got three decent looking gauges LED illumination, and an install pack from 42 Draft Designs. From the logs and things I have seen, VDO gauges are either accurate, or slightly off but still demonstrate great precision. (might be 1 psi off, but they are ALWAYS 1 psi off, no surprises)

They are not the greatest thing to look at, but from a function standpoint they get the job done for a great price. Plus look in any older Porsche or BMW trackday car with aftermarket gauges. VDO most of the time.....

 

Looking at stewart warners....I don't have boost, but will be getting pressure and temp guages. Does accuracy variation occur a lot for pressure and temp gauges between companies?

 

APEXi gauges?

 

Older Porsche and BMW cars come with VDO gauges stock. Lots of people like to think spending $200.00 on a gauge makes it accurate, but in fact its a huge waste of money and is solely a cosmetic upgrade. I've always used VDO gauges in all of my DSM's and never had any problems. Autometer on the other hand is doo doo.