AFR Gauge question
 

Looking to install Innovate DLG-1 Dual AFR gauge in dash. Anybody done this? Is it of any value to you? Will it last?
Any experience welcome. Thank you.

I don't have that gauge installed but the MTX-L installed. I've been running it for 6 years now.

Keep it dry. Water and O2 sensors don't get along well at all.

Makes tuning a breeze.

This.....in fact now I can't imagine operating without it. It's a great trouble shooting tool on the fly should an issue arise. It offers the ability to discern between electrical and fuel problems. For example, you hear the motor stumble and quit and the AFR rolls to 23+, you know you had a fuel issue (I had this happen when an internal diaphragm failed on a VST pump). If AFR was steady and the motor quits or stumbles it points towards electrical.

Lean reading on an 02 can be a misfire also.

I like them as a tuning tool, but really don't have a need for them full time. Fuel pressure dropping will show you the same problem a lean air fuel reading will. It's all just data, it's up to you to interpret it.

That is why I am considering. Seems like it could be a lifesaver as far as fuel tuning under various loads. Nobody seems to mention using these as dash tuning tools. How is the accuracy of these gauges and how sensitive while underway?
Thanks for the responses.

Answer to your questions in order 1 Yes, 2 Yes, 3 Yes, depending on your engine CONFIGURATION it can be a very useful on the fly engine monitoring tool, just as all other monitoring gauges, for those who bother to look at them! LOL. I use the DGL-1 dual. Note as others have cautioned, make sure the sensor is placed away from any water reversion.

Disclaimer: Always take the time to read your plugs!! more so if the engine has not been run on a dyno first!!

The problem is watching fuel pressure drop will not tell you HOW lean it got. Did it go from 12.5 t0 13.0? That wouldn't concern me too much. If it went from 12.3 to 15.0 under load now that would be an issue. Wideband will tell you that. Fuel pressure will not.

I rebuilt some carbs for a buddy last year. Needle and seat was 90% clogged by a piece of rubber that came from somewhere in his fuel system. I would imagine, that he would not have seen a loss in fuel psi, but certainly a lean afr reading.

This gauge looks like a must for any piece of mind on a custom build. Not knocking fuel pressure gauge, I have one of those also.
Anybody added data logging to monitor with vac/tps/rpm/afr? Looks easy to add tps to carb.

I have not used the data logging yet, most likely won't for my set up. but maybe in the future if I decide to make more power.

Keep us posted if you end up using it

If it's that clogged and he didn't feel it laying over he needs to pay better attention to how it's running.

Like a huge loss in rpm.

Some like EGT's however AFR's is a much easier I think and ultimately the best way to maximize HP while egt is extremely important as well however applications can very much more with a broader band of temps making most HP. I'd like to have both to be honest however going AFR.

I'm running the AEM "failsafe" gauge..

http://www.aemelectronics.com/sites/...failsafe_0.jpg

Logs RPM MAP and AFR.

It can be set up to activate a warning if your A/F falls out of the range you specify.. :)

http://www.aemelectronics.com/?q=pro...failsafe-gauge

I've welded into Gil's with blown engines but prefer not to do it on cmi's

Nice

I've welded bungs in my gils and the afr gauge will be here this week.

Full time, AFR, EGT, intake temp and now knock sensors.. I like to know what going on.

Actually, the issue was it running like chit, because the piece of rubber, got lodged in there, keeping the needle and seat from closing. At idle, it was dumping fuel, and running like chit. Hence why he sent me the carbs .

on my lightnings the only place could get a 02 to live was in a header tube, about 10" from flange

I am researching AFR sensor's for my freshly rebuilt 454's

I am interested in your sensor configuration for this gauge.

Do you have 1 gauge\sensor per Exhaust bank tailpiece? ( Ideally I would have 2 sensor's 1 dash gauge\logger per engine.)
Where did you locate the sensor's?

Dan

That WOULD be ideal, but no, I'm only monitoring 1 bank, the O2 port is in the riser...


http://i130.photobucket.com/albums/p...psum8jzjyb.jpg

like icdedppl "s plan , way to fly

Interested in where you placed the sensors in your application and what issues you may have had with it.
I am considering a plate in the dry joint between the aluminum manifold and the riser\tailpiece.
I have heard concerns about locating in the dry joint.. (Preference to certain cylinders, not deep enough into the stream to be accurate.)

Dan

Must be the Silent Choice Lightnings. On the standard Lightnings I have mine in the collector with a 525 cam. I have an O2 on the starboard side for my dash mounted gauge and one on the port side for my Holley HP ECM to read off of. I am going to swap sides this spring and see if the ECM adds or subtracts fuel when it reads off the starboard side. Running O2's full time no problems.

I have data logging via the Holley HP ECM. Its great to sit down and take your time reviewing the logs. Very useful if you have a hard to diagnose problem.