im going to be hooking up an aem ebc guage i'm wonding if i should keep my mech. boost gauge in case the ebc is not accurate. any suggestions would be helpfull.
Are you talking about a straight up aem ebc or just a gauge? I originally had a mbc installed along with a mech. boost gauge. Later on I got a blitz ebc put in and I still have my mech. boost gauge in the car. I've got the boost gauge in a steering column gauge pod so it's really easy for me to just barely glance down and check boost levels. My ebc on the other hand is to the left of the steering wheel right above the a/c vent. So I just left my boost gauge since it's easier to see.
But anyway from my experience with my ebc, it's been more accurate than my gauge. Cool thing too is that it's got a peak function, so the ebc shows how high boost went up to. whereas the gauge's needle just drops back down.
I ordered one of these. AEM Tru-Boost for 260 shipped if anyone wants me to PM them the site. It shipped next day, UPS has it scheduled for delivery on Friday.
If the weather cooperates I should have it installed this weekend. I'll see if I can make an install guide since I can't find any here or on the "other" evo site.
I believe I have the same one, the AEM Tru boost gauge/controller. I have a 3 bar map sensor hooked up for my alky kit and the numbers off of it and the aem usually match, which is good since the map sensor is more accurate than mech gauge. What value did you guys use for stock wg pressure? I'm sure you know but it will remain open until the set wg value is exceded for quicker boost response, I've had pretty good luck with 13 psi, I've notice my boost spikes are less defined, I still can't hold a set value to redline but there is less taper.
You'll never get it to hold say, 20 psi to redline. I found if I went over 12 on the wastegate I'd get eratic boost. I set it to 11.5 and it only tapers 2-3 psi by redline.
11.5 sounds about right, otherwise you may get to much of a spike. Others have set that and a 60% Duty Cycle to get a solid 23PSI, that is what I will try and I will post results. I just like the fact that it uses a MAP to read and control boost, that is VERY nice and the most accurate you can get. This mod may bypass the MBC in terms of being accuate and ease of use.
I got mine for $200 brandy new, well worth it and as much as a MBC/Gauge combo.
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