LQ4 into a 3rd Gen/1972 Nova
05-13-2013, 11:47 AM
#1263
Tank doesn't need to be modified for the mini-tub setup, however it is recommended to dog-ear it for tailpipe clearance. The necessity of this mod is all subjective, depends on how wide the tires are that went on, how big diameter the tailpipes are, how well-fitting the tailpipes are (generic pre-bent or custom cut & welded), and also how low the car is.
Since my car is pretty slammed, and I don't like the idea of tailpipes heating up my gas tank, I already dog-eared my tank, although I think I snipped a bit more than necessary. Oh well. Here is the modified tank:
I finished the mini-tub yesterday, it's all welded, seam sealed, and ready for paint tonight, and hopefully will make good progress on tailpipes this week, next weekend. We need to emissions test up here, and they need exhaust to go to the perimeter of the car in order to test with their sniffers, so these tailpipes need to get made before I can lower the car on the ground for good and drive. I want to start off driving it with full insurance & plates... getting 1-day temporary permits in the fall to drive it got old real quick.
Since my car is pretty slammed, and I don't like the idea of tailpipes heating up my gas tank, I already dog-eared my tank, although I think I snipped a bit more than necessary. Oh well. Here is the modified tank:
I finished the mini-tub yesterday, it's all welded, seam sealed, and ready for paint tonight, and hopefully will make good progress on tailpipes this week, next weekend. We need to emissions test up here, and they need exhaust to go to the perimeter of the car in order to test with their sniffers, so these tailpipes need to get made before I can lower the car on the ground for good and drive. I want to start off driving it with full insurance & plates... getting 1-day temporary permits in the fall to drive it got old real quick.
05-17-2013, 01:19 PM
#1267
Mini-tubbing is done, wheel widening is done and mounted, the roadblock currently before lowering the car to rubber is the over-axle tailpipes, which need a gas tank put back in there before I can start cutting/mocking those up, and before the tank goes back up, I wanted to redo the fuel pump wiring pass-thru, which I'll show below..
Wanted to go a fully-sealed design, so used a steel bulkhead fitting, a Delrin insert, and #8 studs for positive and negative connections..
Bulkhead fitting before trimming/boring..
Bulkhead fitting after trimming height, boring the ID, and also the Delrin insert which will be epoxied into the steel bulkhead fitting, and the #8 studs will be epoxied into the insert. The heights are offset to increase the gap between positive/negative terminals. Once the wire terminals are tightened down, each terminal will be coated in a gas-friendly, non-conducting sealer to further eliminate the chance of sparking/arc'ing.
Also was welding some v-band flanges onto the mufflers so I can hit the ground running on Saturday morning regarding tailpipe making, and got to try out the new shop welder for the first time. This thing is a beast, it makes my home Dynasty look like a fluxcore mig welder...
Wanted to go a fully-sealed design, so used a steel bulkhead fitting, a Delrin insert, and #8 studs for positive and negative connections..
Bulkhead fitting before trimming/boring..
Bulkhead fitting after trimming height, boring the ID, and also the Delrin insert which will be epoxied into the steel bulkhead fitting, and the #8 studs will be epoxied into the insert. The heights are offset to increase the gap between positive/negative terminals. Once the wire terminals are tightened down, each terminal will be coated in a gas-friendly, non-conducting sealer to further eliminate the chance of sparking/arc'ing.
Also was welding some v-band flanges onto the mufflers so I can hit the ground running on Saturday morning regarding tailpipe making, and got to try out the new shop welder for the first time. This thing is a beast, it makes my home Dynasty look like a fluxcore mig welder...
05-27-2013, 07:48 PM
#1269
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Cool bulkhead connector. Question... Why didn't you just weld a stud onto your fuel pump access plate for the ground connection and do a single stud through your bulkhead connector for the hot wire?
Ready to go for a drive this weekend?
Ready to go for a drive this weekend?
05-28-2013, 06:19 AM
#1270
It's a bit of a blessing in disguise. Got lost in thought on how best to seal the power wires and totally forgot about the fuel level signal. So pump is now grounded to the plate and fuel level resistance goes thru what used to be he pump negative terminal.. funny how that worked out haha
06-02-2013, 09:27 PM
#1274
Mini-tub is officially done. At full compression (on bumpstops) have 3/8" clearance between outer tire sidewall and outer inner fender well, and a good 1.25" of room for tire growth for inner tire sidewall.
Made some tailpipes yesterday that I'll finish weld at work tomorrow night, and also have to shorten the front swaybar end links, and then it's ready to roll.
Made some tailpipes yesterday that I'll finish weld at work tomorrow night, and also have to shorten the front swaybar end links, and then it's ready to roll.
