I have the Rail pres, boost, and EGT, for starters i have the TST with the built in gauges, witch it will read all of these parameters...... 1st when i have the TST set to monitor rail pres the TST always reads about 1000 to 1500 PSI higher than my gauge reads(have no idea witch one to go by), been observing this for some time now, and noticed at idle it sometimes reads well below 5000 psi, 2nd when i have the TST on the main menu to read EGT's it always reads about 150* to 200* less than the gauge dose, ive ben goin by the TST on shut downs and have the EGT cutback feature on, the gauge hangs up and sometimes spikes clear up to 1600* when just drivin around and at stop lights, and last but not least the boost gauge and the TST read **** near right on with one another BUT the gauge is very noisy and rattles like crazy and ive even spent the money on a pressure snubber to try to quiet it down with no luck, these problems are startin to get on my last nerve, has anyone had any of these problems with there Optix gauges?
I would be very thankful to any help!!

Thanks
Buddy

 

Bump................ anyone??????????????

 

I have heard only good things about Dipricol so I would say call them and see what they can do for ya. You just may have a bad set.

 

most analog gauges are accurate somewhere between 50 and 100% of their range.
i notice a difference between my tst, quad pod, and analog gauge with my boost.
tst and quad are even, the gauge is lower when it is under 25psi, above that, it is right on with the other two.

 

My dipricol egt gauge always reads 50-100 degs. cooler than my TST egt gauge. Before the twins I had them in the stock manifold less than 2 inches apart and the gauge was still 50-100 degs cooler. Now my gauge reads at the #5 exhaust port and tst reads #4,5&6 right before the turbo and the results are the same. My gauge doesn't hang up though.
At cruise there is a difference between the boost readings, tst normally reads 6-7 psi and gauge reads about 2-3psi. That could be because the gauge is not that accurate that low because it is a 0-100 gauge.