considering defi boost vs. eboost2

pharo · 12-09-2006, 06:17 PM

I want a gauge that will tell me when I am spiking, and is very accurate. I have started other threads, and searched a lot and have come to the conclusion that defi gauges are just tools that give fairly accurate, but still the measurements are rough. What I believe is accurate is basically what the AP or Tari logging says. For my purpose of making sure I am not over boosting, would you recommend the defi gauge, or the eboost2?

***snorky*** · 12-09-2006, 07:47 PM

seems kind of like you're comparing apples to oranges.

the eboost is going to give you more accurate boost readings and is also a boost controller. as i'm sure you know.

but the eboost costs more than a boost controller and a defi gauge.

you can log and control boost with the AP and an upgraded boost solenoid (perrin or gm typhoon) and use the defi keep track of your boost regularly/ watch for overboost/etc. this is what i do/would do, it's cheaper.

defi is jst an analog gauge. obviously, you understand this. just posting my thoughts.

pharo · 12-09-2006, 07:59 PM

yeah, I am just trying to find if the defi is accurate enough to warn me if I am passing 18 psi, so I know to take my foot off the gas. The best case scenario would be if dtec or plx-500 could hook up to a navi screen (like z1 or alpine), and thus make a warning sound if I go over a warning, I don't think thats possible.

A better question might be, can the defi to read as accurately as the AP's live readings?

***snorky*** · 12-09-2006, 08:01 PM

yeah it has peak warnings

amg destroyer · 12-09-2006, 09:22 PM

My defi set-up in my evo is very reliable. From what I have seen, the boost readings are very accurate. Also, on the defi link control unit, there is a "peak warning system" or something of that sort (don't know much about this because I haven't had to use it *knocks on wood*).
Hope all this makes sense and helps.
-CR

**evilSTi7** · 12-09-2006, 10:28 PM

as long as you install the gauge in the way the manual states, then yes it's accurate. The AP can't read over 18.3 psi.

***JPWEraser*** · 12-10-2006, 09:29 AM

Considered a PSi3 dash monitor? It displays ECU information - how much more accurate could you want? I considered getting one of these before I went with my DEFI setup, but I'm glad I got the DEFIs. I feel they are accurate, they respond extremely fast, and have a lot of nice features like peak/warn and record. I think my boost gauge reads about 1psi too high (I hope it does because my stage 2 ecutek car is reading 22psi sometimes) but I can adjust for that - it's leaps and bounds better than the stock gauge.

pharo · 12-10-2006, 04:24 PM

thanks a lot guys. I was gonna go with the psi3, but I became so attached to how well the Defis match. I wish there was more info on how people with defis can be installed to give the most accurate readings.

***JPWEraser*** · 12-10-2006, 04:55 PM

Don't see how I could have installed mine any differently, and I don't know for sure that they're inaccurate, but most stage 2 tunes don't reach my peak boost levels. I love my gauges, don't get me wrong, but I would like to know for sure how close it is. I may be getting a retune here soon since I've done a few things to the car since my last one in January. Anyhow, good luck with whatever you decide to go with.

***snorky*** · 12-10-2006, 08:32 PM

to keep the gauges most accurate, the hose length that connects the source and the sensor must be kept to a minimum.

**Valetudospang** · 06-21-2008, 09:33 PM

Even though this is a super old thread, hears one for the searchers. Eboost2 Baby!! Ive even heard Al from Dyno Flash say its the best one!

12-09-2006, 06:17 PM	#1
pharo The Next Petter Solberg Car: OBP STi Fav Mod: really quick left foot & anything made my TIC Location: thousand oaks Posts: 900 Join Date: Apr 2005 Trader Rating: (0)	considering defi boost vs. eboost2 I want a gauge that will tell me when I am spiking, and is very accurate. I have started other threads, and searched a lot and have come to the conclusion that defi gauges are just tools that give fairly accurate, but still the measurements are rough. What I believe is accurate is basically what the AP or Tari logging says. For my purpose of making sure I am not over boosting, would you recommend the defi gauge, or the eboost2? This ad is not endorsed by this member. Please register or login to hide this ad.

06-21-2008, 09:33 PM	#11
Valetudospang Gold Member Car: Rally Blue 06 WRX TR Fav Mod: Driver/FlatFtShift& LaunchControl Location: VA & PA Posts: 118 Join Date: Jan 2008 Trader Rating: (1)	Re: considering defi boost vs. eboost2 Even though this is a super old thread, hears one for the searchers. Eboost2 Baby!! Ive even heard Al from Dyno Flash say its the best one! This ad is not endorsed by this member. Please register or login to hide this ad.

12-09-2006, 07:47 PM	#2
*snorky* If in doubt, flat out Car: 32J GDFDYEH Fav Mod: Fullerton's Qrack on my car Location: Chicagoland Posts: 3,773 Join Date: Apr 2006 Trader Rating: (23)	seems kind of like you're comparing apples to oranges. the eboost is going to give you more accurate boost readings and is also a boost controller. as i'm sure you know. but the eboost costs more than a boost controller and a defi gauge. you can log and control boost with the AP and an upgraded boost solenoid (perrin or gm typhoon) and use the defi keep track of your boost regularly/ watch for overboost/etc. this is what i do/would do, it's cheaper. defi is jst an analog gauge. obviously, you understand this. just posting my thoughts.

12-09-2006, 07:59 PM	#3
pharo The Next Petter Solberg Car: OBP STi Fav Mod: really quick left foot & anything made my TIC Location: thousand oaks Posts: 900 Join Date: Apr 2005 Trader Rating: (0)	yeah, I am just trying to find if the defi is accurate enough to warn me if I am passing 18 psi, so I know to take my foot off the gas. The best case scenario would be if dtec or plx-500 could hook up to a navi screen (like z1 or alpine), and thus make a warning sound if I go over a warning, I don't think thats possible. A better question might be, can the defi to read as accurately as the AP's live readings?

12-09-2006, 08:01 PM	#4
*snorky* If in doubt, flat out Car: 32J GDFDYEH Fav Mod: Fullerton's Qrack on my car Location: Chicagoland Posts: 3,773 Join Date: Apr 2006 Trader Rating: (23)	yeah it has peak warnings

12-09-2006, 09:22 PM	#5
amg destroyer Iron Fisted Car: '05 STi Fav Mod: Sparco seat Location: OC Posts: 4,186 Join Date: Sep 2006 Trader Rating: (4)	My defi set-up in my evo is very reliable. From what I have seen, the boost readings are very accurate. Also, on the defi link control unit, there is a "peak warning system" or something of that sort (don't know much about this because I haven't had to use it knocks on wood). Hope all this makes sense and helps. -CR

12-09-2006, 10:28 PM	#6
evilSTi7 The Hoff Fan Club, member #001 Car: 05 WRB/Gold Fav Mod: Hood Scoop Homer Location: Where ever The Hoff is! Posts: 10,326 Join Date: Jul 2004 Trader Rating: (4)	as long as you install the gauge in the way the manual states, then yes it's accurate. The AP can't read over 18.3 psi.

12-10-2006, 09:29 AM	#7
*JPWEraser* Platinum Member Car: 05 STi Fav Mod: Do Luck CF Location: East TN Posts: 1,569 Join Date: May 2005 Trader Rating: (5)	Considered a PSi3 dash monitor? It displays ECU information - how much more accurate could you want? I considered getting one of these before I went with my DEFI setup, but I'm glad I got the DEFIs. I feel they are accurate, they respond extremely fast, and have a lot of nice features like peak/warn and record. I think my boost gauge reads about 1psi too high (I hope it does because my stage 2 ecutek car is reading 22psi sometimes) but I can adjust for that - it's leaps and bounds better than the stock gauge.

12-10-2006, 04:24 PM	#8
pharo The Next Petter Solberg Car: OBP STi Fav Mod: really quick left foot & anything made my TIC Location: thousand oaks Posts: 900 Join Date: Apr 2005 Trader Rating: (0)	thanks a lot guys. I was gonna go with the psi3, but I became so attached to how well the Defis match. I wish there was more info on how people with defis can be installed to give the most accurate readings.

12-10-2006, 04:55 PM	#9
*JPWEraser* Platinum Member Car: 05 STi Fav Mod: Do Luck CF Location: East TN Posts: 1,569 Join Date: May 2005 Trader Rating: (5)	Don't see how I could have installed mine any differently, and I don't know for sure that they're inaccurate, but most stage 2 tunes don't reach my peak boost levels. I love my gauges, don't get me wrong, but I would like to know for sure how close it is. I may be getting a retune here soon since I've done a few things to the car since my last one in January. Anyhow, good luck with whatever you decide to go with.

12-10-2006, 08:32 PM	#10
*snorky* If in doubt, flat out Car: 32J GDFDYEH Fav Mod: Fullerton's Qrack on my car Location: Chicagoland Posts: 3,773 Join Date: Apr 2006 Trader Rating: (23)	to keep the gauges most accurate, the hose length that connects the source and the sensor must be kept to a minimum.