Gauges

[mrsuggestion]

For those who added gauges, what location on the firewall did you use to bring the wire into the interior? Existing opening or make a new opening?

 

Thank you,

Matt

[arnulfo de l.a.]

For tach and air shock hoses i used existing factory holes. I try not to drill any holes for any reason unless there is no way around it . So far have not had to drill any holes.

[mrsuggestion]

Thank you, which ones did you use?

[Turbinator]

I use analog gauges that have to connected to oil sending unit and the water temp bulb went into the engine on top of the engine beside the valve cover on the driver side. Should be a bolt screwed in appearing to be doing anything. For me, I drilled a hole in the floor very close to the console. Arnulfo, did it the best way by not drilling any holes in the car. Sir, you might investigate holes in the firewall already made and see the has enough room to share another line.

Some people try to figure out the best place to mount the gauges inside the car.

Turbinstor

[mrsuggestion]

Thank you for your reply.

[CTX-SLPR]

I piggy backed off of the hole for the HVAC cables in the center firewall grommet for my vacuum/boost gauge and the Tach input.  The rest of mine I opened up the speedometer hole slightly since I no longer have a cable driven speedo and added a 30 position cannon plug to get the EFI and gauge signals through.

If you are going to add a hole I’d suggest down by the throttle lever but closer to the midline of the car, that way it’s behind the console extension and pops out very close to where you’d tap into the oil pressure and water temperature sending units on the back of the block and head respectively.

[mrsuggestion]

Thank you. I was planning to use an inline upper hose connection for coolant temperature, 63 Riviera.

[BulldogDriver]

Why use a sensor in the hose when there is a hole in the cylinder head ready for installing one? 
 

Ray

[RivNut]

Different temperatures at different ends of the engine.  

[telriv]

True Ed, BUT it's accurate enough to let you know when or if something is not right.

Usually the left rear will be a few degrees cooler than the right front as the coolant has only flowed through the block at this point & hasn't picked up any heat of the head as it makes a U-Turn & then flows through the head out the front of the head to the water manifold.

 

Tom T.