alien_rx7

I was wondering through a local salvage yard and noticed a Datsun 240z with the hood still intact. In the hood are two small vents, closer to the rear of the hood, one on either side of the centerline. They are bolted in.

Wondering if anyone has thought of adding these to their FB hood before? If so, anyone have pictures?

rotor vs. piston

I've thought about it, but haven't yet tried it. Let us know how it goes.

Manntis

they're actually incorporated into separate flaps on either side of the hood that are independantly hinged. They wouldn't adapt into an RX-7 hood wihtout a lot of modification. Better off just making vents in your hood.

TEAM GO FAST

The 240,260,280,Z's and ZX's have bolt on vents. The 280 ZX turbo's have either a NACA shaped vent or some have more of a scoope. Early honda preludes have a smaller bolt on vent like the Z's too. I have a bunch of bolt on vents from different kinds of cars , and in sets.

Manntis

Sorry, TGF, you're incorrect about the 240Z vents being bolt-on.

The 1979-1984 280ZX do have a bolted-in plastic vent panel in the hood - ugly as a box of frogs, but bolted on. The non-turbos have twin Y shaped vents that are actually a crushed oval shape opening covered in the cosmetic plastic. The turbo have assymetrical vents with a slat-style on one side and slat-with-NACA on the turbo side.

However, the hood of the 240Z has no such bolt on vents - they're in the two flaps on either side of the hood, on the few ones that have vents at all.



(my personal favorite, the G-nose 240Z)




By 1977 the 280Z had hideous 70's style vents tacked onto the hood which did little to cool the inline 6 engine.

alien_rx7

Now I'm going to have to go back and verify which model of Datsun it was

peejay

Some 240Z's did have vented hoods.

Specifically, there was an optional competition hood that was sometimes dealer-installed onto '73 and '74 model year cars. Seems that Nissan was having a lot of problems with vapor lock and overheating on the '73-74 models, and the Final Solution was installing the vented competition hood. This required approval from Nissan, however.

It could also be aftermarket.

This is not counting the side flaps, which are for accessing the battery and washer fluid reservoir. Those are normally non-vented as well, but some people put vented ones on.

- Pete (And you thought I only knew RX-7s.... )

Tom

One of my first cars was a 1975 Toyota Celica GT. Most of the early Celicas had hood vents. They were quite functional. I found this out when flames lapped out of each vent as my fuel line ruptured and caught the engine bay on fire while running down M street in Georgetown D.C.

Good times..