Derek

On the stock tank? Yes. I haven't started the poly tank install yet. I'm convinced Nissan added the vent on the left side of the tank to deal with the situation. There is no other reason for it to be there. You have to be in just the right climate and usage for it to be a problem. Cool morning fill up, and then parked in the sun all day. There is a real potential to form a vapor bubble there and it expands at a greater rate than liquid. Since I have that plugged the vapors path to release is to force all of the gas that is in the upper section of the tank out if it can. A proper check valve system in the vent line to atmosphere would probably solve it but I'm not crazy about having a pressurized tank. I've just finished testing some polyurethane tubing submerged in gasoline for a few weeks with no sign of degradation. I have a plan to use that as an in-tank vent line. I'll post pictures when I finish it. I also ordered a Tanks Inc. 6" backing ring and I'm going to machine my own custom top plate to provide the inlets and outlets I want.

Not much action here but figured I'd throw it out there. Vintage Tank Solutions vent question For those who are running one of the tanks how did you handle the vent for the fuel neck. Blocking that off means that the tank has to vent through the incoming gas and can be problematic. Just curious what others have done. Thanks, Derek

On the plus side this is the most action this thread has had in ages.

I started typing a number of snarky responses and have settled on Wow what a shitty thing to say.

Congratulations you have finally gotten a "I must have that" out of me. Great job.

Ouch. That means I'm extremely old now I'm wet sanding and buffing my Z and let me tell you I'm feeling all of those 65 years.

I've sold 22 heads.

Today this post is officially 10 years old. I was trying to think of something witty to say but I'm drawing a blank. Being 65 will do that to you sometimes. Anyway here's wonderwall.

I have a get down white light scanner and a lot of times unless it has some really complicated contours or boss locations it ends up being faster to do it either with calipers or I'll mount it up in the mill and probe out the needed data. But when I do need it I'm super glad I have it.

Yes No

Nothing more satisfying to me than designing something in CAD then walking out to the shop and implementing it. Great work.....As usual:)

Don't tell my wife Like I tell other people. some like to fish, some like to bowl, I like to make.

The most economical way forward in my opinion would be a custom casting that utilized RB components with custom timing sprockets. But even then you would have to put up a pretty large amount of cash.

He's saying although we are launching a DOHC head in 2024 we readily admit it will be pale in comparison the mighty KN20 from Datsunworks. At least that's what I'm hearing.

Fuel injection if you don't live within driving distance to a tuner that knows side drafts. I like that I can tweak things myself and quickly revert back to a saved tune when I invariably screw it up:) My tuner has done a very good job with my ITB's and I've never even met him in person.