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10-29-2008, 11:56 PM | #1 |
Drives: '08 Bayou Blue LB AT Join Date: Oct 2008
Location: West Hills, CA
Posts: 2,517
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Most important guages for boosted engines?
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.
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10-30-2008, 12:19 AM | #2 |
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Drives: 07 Yaris Turbo Join Date: May 2007
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not critical with supercharging, but I would say a boost gauge and oil pressure, since you already have water temp.
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10-30-2008, 12:31 AM | #3 |
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
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10-30-2008, 12:49 AM | #4 |
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oh yeah, add a wideband A/F that one is fun to watch too
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10-30-2008, 01:23 AM | #5 |
Drives: '08 Bayou Blue LB AT Join Date: Oct 2008
Location: West Hills, CA
Posts: 2,517
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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.
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aFe Intake | Blitz Supercharger | Megan Header | TRD Exhaust | NST Pulley Set TRD Shocks/Struts | Tanabe NF210 Springs | TRD Sway Bar | Motegi TRAKLITE wheels | Kuhmo Ecsta XS R1 Concepts slotted rotors | Carbotech 1521 brake pads | stainless steel brake lines | Seibon vented carbon fiber hood |
10-30-2008, 06:16 AM | #6 |
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
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08 junction produce belta almost done and ready for paint 06 junction produce tc 604 bhp 445tq ddriven still trying for 700+hp 90 crx sir ls vtec turbo 755 hp mecp masters certified |
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10-30-2008, 10:14 AM | #7 |
Bathroom + Laptop = <3
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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
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10-30-2008, 11:35 AM | #8 |
I used to have 1700 posts
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who makes a good wideband AFR gauge
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10-30-2008, 12:08 PM | #9 |
Break'em off some.
Drives: 07 Yaris LB, 04 Cobra Join Date: Jan 2007
Location: So Cal, OC
Posts: 854
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10-30-2008, 08:42 PM | #10 |
559 Before the Hack
Drives: 07 Yaris LB Join Date: May 2007
Location: Miramar
Posts: 51
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PLX Devices
They make a lot of different products. They are popular in the 300ZX and 350Z arenas. If I were to get a wideband Id get on of theirs, AEM or Innovative. |
10-30-2008, 12:06 PM | #11 |
Break'em off some.
Drives: 07 Yaris LB, 04 Cobra Join Date: Jan 2007
Location: So Cal, OC
Posts: 854
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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. |
10-30-2008, 12:10 PM | #12 |
Break'em off some.
Drives: 07 Yaris LB, 04 Cobra Join Date: Jan 2007
Location: So Cal, OC
Posts: 854
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10-30-2008, 12:25 PM | #13 |
Break'em off some.
Drives: 07 Yaris LB, 04 Cobra Join Date: Jan 2007
Location: So Cal, OC
Posts: 854
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10-30-2008, 01:30 PM | #14 |
I used to have 1700 posts
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what should the AFR be on a blitz supercharged yaris?
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10-30-2008, 01:20 PM | #15 |
Bathroom + Laptop = <3
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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
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10-30-2008, 05:28 PM | #16 |
i use plx
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08 junction produce belta almost done and ready for paint 06 junction produce tc 604 bhp 445tq ddriven still trying for 700+hp 90 crx sir ls vtec turbo 755 hp mecp masters certified |
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10-30-2008, 07:41 PM | #17 |
Drives: '08 Bayou Blue LB AT Join Date: Oct 2008
Location: West Hills, CA
Posts: 2,517
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And what would be considered too hot on an EGT guage? Do they typically have a green and red zone?
What would be the remedy?
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10-30-2008, 11:09 PM | #18 | |
Break'em off some.
Drives: 07 Yaris LB, 04 Cobra Join Date: Jan 2007
Location: So Cal, OC
Posts: 854
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Quote:
My WRX could hit 1600 no problem, and my Cobra rarely breaks 1400. Turbo cars can get you into trouble because you can hit full boost at less than full throttle. An example would be going up a hill. If you go part throttle up a hill in a turbo car the boost will rise and you will see EGTs climb. This is where you can cause engine damage. This is precisely why EGT and boost gauges are needed on a turbo car. The solution for this is to let off the gas and not make any boost, or floor it to get the car to the open loop fueling map and bring down the EGTs with extra fuel. Supercharged cars do not have this problem because boost is limited by engine speed. |
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