Best 4 gauges to install on a 4D56 engine

T

Tuksy

New Member
I recently installed a innovate motorsports SCG-1 Wideband AFR and boost controller on my 1992 L300 4D56. The previous owner did a excellent job installing a EGT gauge and boost gauge. The SCG-1 displays the Wideband AFR and boost it reads from a MAP sensor. I was originally going to keep the stand alone boost sensor but during the install of the SCG-1 i found that I damaged the line going into the boost gauge. It can be fixed but I am wondering if this is a opportunity to have EGT, AFR, Boost, and then ???

My first thought would be to put in a voltage gauge, but then I wondered how important that is. I monitor it on my 6.0l ford diesel but that thing eats alternators for breakfast and occasionally only take out 1 out of 3 diodes leading the dash cluster to not show you the battery light until its too late. Then I considered a oil temp sensor, it would be more difficult then the voltage but also maybe more worthwhile?

Also a different question about my MAP sensor, right now I have teed off from the boost line going to the boost compensator. Would it be better top tap in a nipple to the air intake plenum, and if it is better by how much?

Tuksy
 
Coolant temp... the factory gauge isn't terribly accurate and is a known failure point (actually, the fuel gauge power connections fail taking out the temp gauge as well).
 
sk66 said:
Coolant temp... the factory gauge isn't terribly accurate and is a known failure point (actually, the fuel gauge power connections fail taking out the temp gauge as well).
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Thanks sk66. That probably is the best way to go. I think originally I was looking at oil temp because I have used it in conjunction with a coolant temp gauge to monitor the variation of the two temps. Mainly looking for issues in the oil cooler. I don't think this would be applicable in this situation as I would need a accurate digital readout of the coolant temp to reference against the oil temp.
 
I have a similar gauge from Innovative Motorsport; from AFR reading perspective the range is not wide enough. You really want a gauge that will read 30:1 as most of the time the gauge will be maxed out reading 22.4. It will read appropriately while under heavy acceleration, but still disappointing it won't give an accurate reading the rest of the time. As far as added gauges, I am running afr/boost, h20, & egt. A couple electronics also report alt output so that is covered, only extra gauge I have considered adding has been oil pressure which I will eventually add.
 
+3 for coolant temp. You may also consider transmission oil temp.

I have installed aftermarket gauges for boost, EGT, coolant temp, and transmission temp. I've also put in an electronic 12v monitor into my switch panel.
 
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