Can someone please explain to me what the difference between the electrical and mechanical? Is the any advantage between the two?
Thank you.

 

electrical
has a sending unit and then wires run to the gauge. more accurate and no danger to user.

mechanical
does measuring inside the gauge so you have hot oil or coolant going inside the car.

electrical gauges are far better for everything except boost/vac

 

i have a mech fuel pressure gauge in my car.... and it scares me...... soon it will be electrical.

 

ewwwwwwww

 

I am getting boost gauge for the car. Should I go with electrical or mechanical?

 

Doesn't matter that much on a boost gauge. The electrical meters are nice, since they typically have peak/hold, warning, some even have replay. Peak hold and warning are VERY handy.

But, as far as accuracy, a good gauge will be accurate no matter if it's mechanical or electrical.

Greddy, who probably makes the best quality inexpensive meters, has a 60mm mechanical boost for just under $100. They have a series of 52mm electric non-peak-hold meters that are more cost effective than the peak/hold gauges. The 52mm electric boost is about $20 more - no real advantage there, save it would match other gauges.

There is also some speculation that you get a more accurate or faster reading with a short vacuum line to a sender, as opposed to a long vacuum line running into the cabin and to the gauge. Jury's still out on that one, though.

Best prices for gauges hands down -

http://www.gruppe-s.com

Dale

 

Neither is inherently more accurate than the other. The advantage of electrical gauges is that they do not require running fluids into the cabin to the gauges.

For boost of course there are no fluids involved so a mechanical gauge is much simpler.

 

Thanks guys. I will go with electrical.