Alternative Gas Cap?

[Sandy455]

Have been driving my 1970 240Z on the street and track for 12+ years. I've replaced the seal and stock gas cap over the years. But getting the cap 100% screwed down is always a challenge. And there have been times I was sure it was fully closed but it wasn't and had fuel leakage down the rear fender during time trials. To that end, anyone out there installed a more modern/aircraft style fuel cap with a new fuel filler opening? Thanks.

Edited October 30 by Sandy455

[jhm]

I have seen some folks add a Ferrrari-style "pop-up" gas cap and filler; but it's not a trivial mod cost- or work-wise.  And it's usually done for asthetics vs functionality, IME.

 

I'm curious....are you using this style cap?  It's what I use; and have no problem with spillage/leakage at the track, even when the tank is fairly full.  https://www.zeddsaver.com/collections/gas-caps/products/240z-280z-gas-cap-with-retainer-ring

 

I'm interested to see what other folks have to say -- following.  Hope you find a solution that works for you!!

 

 

[Sandy455]

Yes. That's the set up I have now. But as I'm hearing from different folks in my Datsun world since I posted this, replacing the inlet/ring to something else is extremely pricey.

[darom]

I bought a gas cap for a 2002 bmw for my 280z (MSA used to sell them, it is showing out of stock: https://www.thezstore.com/product/4445/locking-gas-cap-70-76-240z-260z-280z )

 

The cap fits tight. Not sure if this is something that will work for your racing events.