Jump to content
Dadsun

Exposed (unwrapped) fuel rails on my 240z?

Recommended Posts

Is it kosher to leave the fuel rails exposed instead of wrapping them in heat shield? (I currently have original flat top carbs on my 1973 240z, fyi, and they are wrapped in two layers of ugly mess.)

Started wondering about it since I've got my fuel rails off right now -- part of my end to end cleaning of gas tank and fuel lines. 

I see pics like this with exposed fuel rail:

  IMG_0906.JPG

 

 

Share this post


Link to post
Share on other sites

Are you planning to drive the car?  Download the document that shows why the heat shields were added.

 

  • Like 1

Share this post


Link to post
Share on other sites

Yes, I plan to drive it a lot.  Not daily driver, but I bought it to enjoy it on the road.  It doesn't currently have the heat shield, but I did order a used one.

Share this post


Link to post
Share on other sites

5 hours ago, Dadsun said:

Is it kosher to leave the fuel rails exposed instead of wrapping them in heat shield? (I currently have original flat top carbs on my 1973 240z, fyi, and they are wrapped in two layers of ugly mess.)

Started wondering about it since I've got my fuel rails off right now -- part of my end to end cleaning of gas tank and fuel lines. 

I see pics like this with exposed fuel rail:

  IMG_0906.JPG

 

 

There's two differences in these pics. Can you pick them out? Hocus Focus. LOL

 image.png

Share this post


Link to post
Share on other sites

Ha, ok. Well, today I decided to pull the trigger on paltech roundtops. On order. Does that change the discussion? :-)

Share this post


Link to post
Share on other sites

Yes it does to me. Those flat tops are good when they're right, which I've only heard 2 members on here that have that "don't quit" attitude when it comes to the later carbs. Like Zed Head precluded to above there is a reason the Nissan Corporation put out the fuel improvement for '73 and '74s.

Share this post


Link to post
Share on other sites

After doing the Patton Machine fuel injection, I wish I could have done the conversion with the flat tops years ago when I had them. I bet they would have made good throttle bodies.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use. We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.