Most important guages for boosted engines?

[LtNoogie]

Once I install the Blitz, what three guages are most important for monitoring the health of the engine?

I already have a ScanGuage so I can monitor water temp.

[cali yaris]

not critical with supercharging, but I would say a boost gauge and oil pressure, since you already have water temp.

[battleversiontc]

boost, oil, pyrometer so if you hold it long you dont fry your pistons
i run all three for my turbod tc and water temp, and wideband,
my old supercharged delsol i ran those three and a wideband

[cali yaris]

oh yeah, add a wideband A/F that one is fun to watch too

[LtNoogie]

Ok, but other than fun to watch, will the A/F wideband warn me that something is about to blow up? I can see the point of oil pressure and water temp. Never knew the purpose of wideband.

[battleversiontc]

the pyrometer will tell you if your pistons about to melt. a/f wideband would tell you if its to lean or to rich or right on the money

[Nexus1155]

i would say boost/oil pressure/AFR.... any car that you plan on tuning correctly NEEDS a wideband... people think they can use the narrowband signal to tune... thats a bunch of hoohah, but the wideband will cost you a pretty penny over the others

[whooppee777]

who makes a good wideband AFR gauge

[largeorangefont]

If you have a turbo you will want:

Boost, EGT, oil pressure, water temp

If you are supercharged you will want:

Water temp, oil pressure, EGT, boost if you have extra $.

Wideband is fine for both, but EGT is going to be more important, especially in a turbo car.

If you have a scangauge, I would not waste the cash on a wideband. The scangauge should be able to monitor fuel pressure, which will give you a window into the fueling system. Between fuel pressure and EGT you will be able to tell if you have a fueling problem. EGT is more critical to the health of the engine, especially with a turbo.

If you are doing your own tuning however, then you will definately want a wideband.

[largeorangefont]

Originally Posted by whooppee777

who makes a good wideband AFR gauge

AEM, Dynojet, Autometer, Innovate, Dynotune. You can get one from $250-$350 it just depends on what features you want.

[largeorangefont]

Originally Posted by kurokoma-kun

where are the rest of you locating the wideband a/f O2 sensor? header or midpipe? i really hate to drill a new hole on my header if i can locate it on the pipe

It needs to be before any cats, and clocked above 9 and 3 on the pipe to avoid sensor damage.

[largeorangefont]

Originally Posted by kurokoma-kun

on that nitto midpipe there's a few inches of pipe right behind the collector b4 the first resonator, that'll be a good spot... now if only i could weld

a muffler shop will be able to handle it.

[Nexus1155]

i use innovate LM-1, but it is handheld and i have an extra one lying around somewhere... but on cars that people dont feel like getting a bung welded in, i use the exhaust clamp which gave me a steady 14.5 AFR reading at idle out of the Envoy i drive... and that was at the end of the tailpipe but the HPtuners scanner software read 13.06 :-/ whacky interfaces

[whooppee777]

what should the AFR be on a blitz supercharged yaris?

[largeorangefont]

Originally Posted by whooppee777

what should the AFR be on a blitz supercharged yaris?

I would not got higher than 12:1. Mid 11s would be a very safe compromise.

I run my Cobra at 11.3 to one to keep EGTs down on the track.

[whooppee777]

i saw a pic of camelll's gauge reading 13.1 at 9 pounds of boost whats ur take on that?

[battleversiontc]

i use plx

[largeorangefont]

Originally Posted by whooppee777

i saw a pic of camelll's gauge reading 13.1 at 9 pounds of boost whats ur take on that?

He said it dips to low/mid 11s after that though, which is fine. A second or 2 of 13:1 under boost after throttle tip in is not going to hurt anything.