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Wanting to wire in secondary temp gauge

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Old May 20, 2013 | 08:00 AM
  #1  
gta_knight's Avatar
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From: England
Car: 1987 GTA
Engine: 350 TPI w/ extras !
Transmission: 700R4
Wanting to wire in secondary temp gauge

Hey guys,

Ive not long put the knight rider dash in my car and i cant put all my faith in the LED's on the dash for my important readouts. So i was thinking of installing some universal round digital gauges and hide them in the centre console so i can check the temp etc when i want by lifting the lid.

I was told by a friend to look for a dual port thermostat housing where you can screw in a temp sensor but i cant seem to find one that fits an 87 or later block. So im just wondering if anyone else has wired in separate gauges to their cars and where you mount the secondary thermometer ?
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Old May 20, 2013 | 08:40 AM
  #2  
Orr89RocZ's Avatar
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From: Pittsburgh PA
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: MWC 9” 3.00
Re: Wanting to wire in secondary temp gauge

Can put it anywhere. Some aftermarket waterpumps have additional ports you can use, some thermostat housings have a port you can use, and also there are holes in the heads you can use if not using yours for fan control. Thermostats for tpi are harder to find due to the angle they discharge at. May need to find one with swivel neck which are more pricey

Or just tap into the current sensor circuit and feed signal to two gauges. I think that can work but i understand an additional sensor is a safe double check
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Old May 20, 2013 | 09:37 AM
  #3  
gta_knight's Avatar
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From: England
Car: 1987 GTA
Engine: 350 TPI w/ extras !
Transmission: 700R4
Re: Wanting to wire in secondary temp gauge

Ive been told i cant use one signal wire to go to two gauges or they will give false readings :/

Im not using the fan switch on the passenger side of the block as ive rewired my fans to switches, can that be used as a temp gauge then ?
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Old May 20, 2013 | 09:41 AM
  #4  
Orr89RocZ's Avatar
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From: Pittsburgh PA
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: MWC 9” 3.00
Re: Wanting to wire in secondary temp gauge

Yeah just need a sensor that will fit into there. I believe its same size as driver side sensor
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Old May 20, 2013 | 10:44 AM
  #5  
gta_knight's Avatar
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Joined: Oct 2005
Posts: 949
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From: England
Car: 1987 GTA
Engine: 350 TPI w/ extras !
Transmission: 700R4
Re: Wanting to wire in secondary temp gauge

ah sweet, that would be much simpler then, i will have to see if they are the same size and go from there. thanks for that mate.
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Old May 25, 2013 | 06:54 AM
  #6  
gta_knight's Avatar
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Joined: Oct 2005
Posts: 949
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From: England
Car: 1987 GTA
Engine: 350 TPI w/ extras !
Transmission: 700R4
Re: Wanting to wire in secondary temp gauge

Well this worked great, installed another temp sender where the fan switch goes, ran the wire around the back into the loom and through into the car, and ive mounted the gauge under the stock dash so its hidden from the knight rider dash and only visible through the gap in the switchpods when im driving



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