DavyZ
New Reader
2/19/24 1:27 p.m.
Just a suggestion--include a photo in a dimly lit room illustrating the face what we may see in the car. I suppose you thought one of your photos would include this but then realized what you had wasn't adequate--I know, things happen. Still, you could include a shot of them illuminated for a future article!
cholmes
New Reader
2/20/24 1:36 p.m.
My company sells fuel pumps for classic cars, and we deal with fuel pump and pressure questions from customers almost daily. The number one thing we tell them in troubleshooting fuel systems is to have a fuel pressure gauge that you can read WHILE DRIVING. It is very common to have perfect fuel pressure at rest with the hood up, only to have it plummet when flooring it while driving. Just a thought. Also, the cool looking liquid filled gauges are very sensitive to underhood heat, reading lower as they get hotter even if the pressure is steady......
I'm with cholmes. I have a fuel pressure gauge in my race car, and I refer to it regularly. It confirms I've got fuel at least to the engine compartment - the gauge is on the regulator on the firewall, next stop carbs. I can refer to it if there are every running issues on the track. Also, my Triumph GT6 does not like a hot restart with hot fuel in the float bowls sitting above the exhaust header, so I routinely shut off the fuel pump when I get to the grid, watch the pressure drop to zero and let the engine run for a few minutes after to make room for fresh fuel on a restart.
also - fuel level in a fuel cell? Did not know there was a way to monitor that. Tell us more.
All I see is five mirrors. Possibly convex smoked glass. Look to be tough to read in a street car also.
back when "digital" meant "displays a number", some testing reportedly showed that it took more time to interpret while driving.
it was also seen i in some race cars that the gauges were rotated such that "normal" was straight up (12:00).....a quick glance at a cluster told a lot.
what we really need is an Arduino Copliot to process the info and then present only interesting info, such as "oil pressure out of range for RPM and Temp" or "oil pressure transient drop when right turn over 0.7g x 5 seconds".
Analog gauges might be better. Rotate the gauge so the needle is straight up when it's showing a normal reading. That way you can tell at a glance if things are ok.
I have always hated digital gauges. The only gauge I use that is digital is AFR, where I can get a more accurate read on a quick glance....or where space is limited and the gauge is purely auxiliary like vacuum or clock, etc. For precision readings, you are far better off datalogging it and reviewing afterward.
This is why i like my FuelTech FT550 so much. Dash, ECU all in one and can be configured to display anything I want.
rb92673
New Reader
2/23/24 3:03 p.m.
For a track car...
Gauges are great if you actually look at them. I prefer idiot lights that are giant and super bright with gauges as a backup. Even better, logging of everything so if there is a problem you can see the history leading up to it and have a better idea whats broke. Even more better, transmitting that data to the pit so that someone else can review the data and the driver can concentrate on driving.