LQ4 into a 3rd Gen/1972 Nova by frojoe

3 minute(s) of a 891 minute read

To give some perspective, crawled under the car after work to snap a pic. Forgive the mufflers being out of plane.. this setup has always been "temporary". The mufflers (Flowmaster 50 series, long case.. grossly restrictive) are 4" thick case, 2.5" in/out.. so the Dynomax mufflers I'm looking at are 4.5" thick 9.75"x14" case with 3.5" in/out, and Magnaflow's version is a 5" thick case with 8"x14" case. You can see how high up the rear axle is stuffed relative to the mufflers (as high up as they can go). The ride height is right at 2.5" compressed on 5" total stroke shocks.

1-11-2017

I was actually thinking something along those lines a while back.. would be such a plumbing nightmare. Probably end up looking something like this...

1-13-2017

Thanks for that link Clint.. interesting read, he seems very similar to how I operate.

With the air filter (single one now, but two in the future with twins), intercooler piping, headlight wiring, and the general shortness of the Nova's tiny front overhang, I don't really think there's room to jam it behind a headlight.

I'm thinking it could go where the heater blow motor is on the passenger side of the firewall under the front fender, kind of like where a lot of dry sump tanks are put on pro touring Camaro's, except due to the smaller size have in in front of the firewall and not in a sheetmetal'd recess.

Also, you can see where my fuel hardlines and FPR currently are.. stupid huge heater box needs to go bye-bye!

Also found this, it's a rollover vent with built in float to limit the amount of gas that passes thru the vent when the vent is in the upright position (ball check valve not engaged) but fuel is sloshing around.

I think for the surge tank the feed line from the gas tank should be fairly near the top where the return line to the gas tank would be, that way when the car is parked the whole volume of the surge tank (upwards of a gallon probably) doesn't gravity drain back to the gas tank, and potentially overfill the gas tank (if it's a full tank) and run up the vent tube. I bet the above vent would work decently for quick sloshing, but wouldn't seal well against constant pressure head from an overfilled gas tank. I'd put a drain fitting on the bottom of the surge tank to drain it in the case of maintenance.