Cascade Crew

QwkTrip

... without cutting the filler neck? It went in! Why can't I get it out?

I had to drop the F*ing axle. I can't get a good enough angle to slip out the F*ing tank. And I'm having an F*ing good time.

Alphius · Posted: Sat Sep 17, 2011 10:27 am Post subject:

Rotate and tilt. Try new and exciting positions.

I promise, it will come out eventually. Wink

QwkTrip · Posted: Sat Sep 17, 2011 10:35 am Post subject:

I guess I had to stop trying so hard. I took a rest and it fell out by itself.

Twilightoptics · Posted: Sat Sep 17, 2011 10:40 am Post subject:

LMAO! I've always found getting the ass end up high enough is the key. Then rotate the tip one way or the other to get it to slide out.

Of course dropping the diff and panhard brace.

No cutting holes for you? ;0p

QwkTrip · Posted: Sat Sep 17, 2011 10:41 am Post subject:

No cutting holes for me. I'm prepping the 4th gen tank to go back up in it's place.

iansane · Posted: Sat Sep 17, 2011 11:36 am Post subject:

I still need to get around to putting my 4thgen tank and racetronix setup back it. Although, my factory filler neck is pre-cracked for easy removal. Very Happy

What are you going to bolt/screw your filler neck to on the car side? I haven't even taken a look yet to see what's back there.

QwkTrip · Posted: Sat Sep 17, 2011 12:18 pm Post subject:

Haven't even gotten that far. Why not just leave it loose? Not like it can go anywhere attached to the tank and pinned inside the fuel door compartment.

Schultzy89GTA · Posted: Sat Sep 17, 2011 12:28 pm Post subject:

Sucker is fun the first time eh?

-Schultzy

QwkTrip · Posted: Sat Sep 17, 2011 6:01 pm Post subject:

Now that I have the 4th gen pump module disassembled I'm thinking pretty hard about doing the '97 Grand Prix fuel sender mod. Even though it is expensive it seems a lot less risky then screwing up my fuel gauge trying to solder in a resistor.

I think the sender for 3rd gen gauge is GM p/n 25319676. It's about $130 through Rock Auto.

aaron_sK · Posted: Sat Sep 17, 2011 6:04 pm Post subject:

Two stupid questions:

1) Can't you put the resistor inline?

2) What the heck are you doing still running stock gauges? Laughing

QwkTrip · Posted: Sat Sep 17, 2011 6:37 pm Post subject:

Later year Firebird gauges look good. No need to change that up. Wink

Uh.... I can't remember exactly about the resistor thing. Been a while since I looked up that info. I think there is a resistor bridge in the fuel gauge that gets modified. Adding a resistor in-line would increase the total resistance and just make the needle sit on 'Full' all the time, wouldn't it?

The other thing I'm doing, and this might seem weird to some of you, is I'm getting rid of the F-body in-tank fuel regulator and using the 'Vette filter & regulator. That way the regulator is easily serviceable without dropping the tank and every time I change the filter I get a new regulator too.

aaron_sK · Posted: Sat Sep 17, 2011 7:52 pm Post subject:

Does the 'Vette have a return line?

iansane · Posted: Sat Sep 17, 2011 9:54 pm Post subject:

iansane · Posted: Sat Sep 17, 2011 9:56 pm Post subject:

QwkTrip · Posted: Sun Sep 18, 2011 8:30 am Post subject:

I'll just have to see what the filler neck is like when installed. If it is floppy then I will do something to tie it down.

I don't like the looks of my fuel module. I'm ordering a new one from Racetronix. Better to start new then to redo. You've got me thinking again about changing resistors in the fuel gauge. Looks pretty easy now that I see the pictures again.

A long time ago I had a friend modify my tachometer by changing out a resistor. As far as we could tell the only purpose of that resistor was final calibration as it didn't really change the function. He had a waveform generator and kept tuning it until it was spot on from 200 - 8000 RPM. I've got the most accurate stock tach in history. Very Happy

QwkTrip · Posted: Sun Sep 18, 2011 9:16 am Post subject:

Oh, I forgot to mention about removing the regulator....

The stock 4th gen tank has no baffles so the bucket is necessary to make sure the pump doesn't get starved of fuel. The bucket is filled by a venturi feed off the bottom of the bucket, and the fuel from the return line dumps back into the bucket too. Even when the fuel tank is low on fuel the bucket is filled and the pump is cooled. If you use a stock pump I would just spill the return line fuel back into the bucket. If you use a high flow pump then you have to start worrying about aeriation of the fuel. I think one way to overcome that is using a larger diameter return line so the pump doesn't beat the fuel working against a pressure head.

This is just my opinion, but I think cutting out the bottom of the bucket for a Walbro pump is foolish. At that point you're basically resigning to having a fuel tank with no baffles to hold fuel at the pump. I chose the Racetronix because it maintains the venturi feed and leave the bucket in tact.

QwkTrip · Posted: Sun Sep 18, 2011 10:30 am Post subject:

Since I am buying a new fuel module I sacrificed mine to figure out how that regulator housing is installed.

The regulator housing slips onto the white nipple and is molded around the stepped portion of the stainless shaft. It is integral to the fuel module and cannot be removed unless cut away. (Easy enough with a Dremel Multi-Max and the stainless shaft seems to be hard enough that the cutting tool didn't damage it.) The stainless shaft is hollow and has something to do with the fuel return, maybe primary overflow past the regulator? Anyway, the hollow tube will be rendered useless once you remove the regulator insert from the regulator housing.

The regulator housing slips over the outside of the nipple from the fuel return hose, so it doesn't restrict flow at all. I guess my recommendation is to leave the regulator housing in place and not try to remove it. Just remove the regulator and the o-ring so it doesn't come loose and fall into the fuel bucket.

If you had a purpose for routing the fuel return to a certain location then you would have to cut out the regulator housing so you can attach a hose to the nipple.

iansane · Posted: Sun Sep 18, 2011 12:54 pm Post subject:

91RSVert · Posted: Mon Sep 19, 2011 7:45 am Post subject:

Keeping notes, this is something I want to do badly to my car.

aaron_sK · Posted: Mon Sep 19, 2011 7:26 pm Post subject:

I have a possibly stupid question relating to the fourthgen tank: How much weight savings are you guys seeing vs. the steel tank?