In Cabin fuel pressure regulator - where to drill?
 

SOOO

I did what any self respecting Z owner would do and windowed my block :driving:
I only just pulled the block in feb to deal with a loose waste gate mount zzz

Ok, so, since im pulling the block AGAIN (gat dammit) to do an el swappo to a new and younger block, i figured id do a few things like reroute my fuel lines ( to hell with the existing setup)

BUT - also, id like to add an in-cabin fuel pressure gauge. Yes, before you ask, I already have one in the engine bay, but its a PITA to monitor without putting a camera in there etc... i just want an in cabin gauge...

QUSTION: have any of you guys (&gals) drilled the firewall into the compartment? where did you go?

heres a pic from my last pull for reference.
http://www.the370z.com/members/giral...-reduction.jpg

There is an existing hole in the firewall, near the battery, that you can run a couple of wires through. You may have to poke a hole in the boot for the new wires.

Is this hole you are asking about going to be for gauge wires or fuel lines? Your subject implies you want your fuel regulator in the cabin. If you are only concerned with a fuel gauge, Southark hit the nail on the head, but I assume you already know about that grommet considering you're boosted and probably already have wires running through there.

Also.. I know it is probably a sore subject but I encourage you to share the details on your engine failure. It goes a long way to help others not make similar mistakes.

If wanting a fuel gauge inside the car. Use an electrical gauge, not a mechanical gauge. You do NOT want a fuel line inside the car. If you run a fuel line inside the car. You get what you deserve. Toasted.

For my oil pressure and water temp gauges. I ran the wiring through the big rubber boot next to the battery. Then used RTV to seal the wiring in the boot.

^^ Wot he said !!!

:iagree:

I bought an old Mustang where previous owner had installed a mechanical oil pressure gauge under the dash. He over-tightened the fitting on the gauge and I ended up with about a quart-and-a-half of oil in the carpet when it failed. :( If it had been fuel pressure, there's a good chance I would have had a fire on my hands.

Ha, did the same thing back in the day, '78 Monte Carlo. Just a few squirts, but that was bad enough.

I spoke to a few guys at the track...

Apparently theres a deal where you run a 4an line into some sort of a small drum the size of a pressure regulator... the other side of that drum is filled with an inert liquid. If the line pops,l you get a small amount of whatever non hazmat liquid on you and thats about it... still lets you get a live analog reading.

https://www.summitracing.com/parts/atm-5282

As for the ecm grommet - theres so much running through there, im strongly considering drilling another smaller hole next to it to transfer a bunch of wiring... There is a grommet behind the windshield wiper mechanism that ill have a look at soon...

:tiphat:

http://www.the370z.com/forced-induct...ml#post3953427

Cant say what did it except that ive run this car full blast since ive bought it... at around redline is when it blew This car has been well kept maintenance-wise, but has had its *** kicked on open track, dragstrips, autox, Denver area mountain passes and canyon runs... 1 piston basically exploded and the rod spun around breaking sht until it too came off the crank... the intake valves were intact ( i still need to disassemble the block)

The car was fully tuned and running e85 ( vial tested to about 83%) at the time. all fluids and ambient temps were good at the time.

I wasnt logging so i cant speak for other parameters. But, moving forward, I want more info, and having a fuel pressure visible at all times is a big factor.

I posted about an isolator that i was told to check out, so i should be doing that.

Another option is to use RC quad copter tech to video in my engine bay gauge... ( small camera with a wireless VTX and a control board. Then just transmit the feed to an arduino with a receiver and an arduino to power that side of it. Prob even swap out the car info screen for this one.

Im also in the process of putting the workshop12 braniac kit, so might be able to do the wireless video feed option straight to the tablet.. :happydance:

This is the gauge I would install. You can set the Low pressure and High Pressure warnings on it.

https://www.speedhut.com/gauge/GR-FU...si-(w--warning)

There is a hole that requires no drilling and nothing else is being ran through it. It's literally some where directly behind the battery on the firewall, it's covered by a little rubber insert. Take the battery out and you'll spot it in about 10 seconds. I ran my fuel pump wiring through it.

Ill have to go look for that hole.. thx... for most of my relays and upgrades, ive just been stuffing the ecm hole... reminds me of prom night :rofl2: