gauge questions - Honda Prelude Forum

big blue h22 · 08-11-2002, 06:27 PM

I have a couple of gauge questions for you guys, I just bought an autometer nitrous pressure gauge for my pod. I know i will need an isolator so I am not running nitrous to the inside of my car, wehre is the cheapest place I can find one of these, I've seen autometer has them, but they are almost 100 bucks, thats more than the gauge itself, also

I need a fuel pressure gauge, but I am thinking about ordering the electrical one instead of the mechanical one so I dont have to buy ANOTHER isolator. if i do this, where exactly does the electrical autometer fuel press. gauge get its reading from? thanks guys!!

Smokey_Mcpot · 08-11-2002, 09:46 PM

for the nitrous gauge, i have a mechanical pressure gauge. i just ran a braided stainless line from the trunk to the gauge which is mounted in my center console, the space formerly known as the cup holders. i know that's not safe, but i don't use nitrous with the windows up, just in case there is a leak.

as for the fuel pressure gauge, spend the extra cash and get the electrical unit. it comes with an electrical sending unit which gives readings to the gauge. it mounts on the fuel rail. if you have an aftermarket fuel rail, i.e. and aem one, it has holes that allow you to screw it in the rail. if not, get the b&m fuel pressure gauge, which is about 40 bucks from summit, and use the adapter that fits on the fuel rail. this allows you to screw the sending unit into it. check my pictures on my website in my sig. just watch out, there are a ton of pop-ups.

NoelJ · 08-12-2002, 10:23 AM

Well, if you want to reconsider the fuel pressure gauge, I have one for sale. I'll sell it to you for $30. It's an autometer ultra lite (silver) mechanical gauge. You pay shipping too, but should only be a few bucks. From what my mechanic tells me, you might not need an isolator for this gauge. I could be wrong though.

big blue h22 · 08-14-2002, 08:42 AM

well, i already have 2 other phantom series gauges, so that one wouldn't match but thanks man!!