Jump to content

Puma bonnet on older vehicle.


Recommended Posts

One of the things I found when I drove for a while in hot weather with my bonnet off was that the airflow through the flaps decreased dramatically; and in +40C that's a bit of a problem, what I'm wondering is if fitting the Puma bonnet has any similar effect to the airflow or not since the old style one seems designed to maximize air pressure right at the key point.

Link to comment
Share on other sites

Yes, those things are obvious. However airflow is a complex fluid dynamics problem and not something where guessing and common sense are effective in predicting; hence 3d modeling, wind tunnels, etc. I'd like to hear at least anecdotal evidence before making a decision on what to do about my damaged bonnet.

Link to comment
Share on other sites

There are a few people who have fitted Puma bonnets to older landies, I think Landy-Novice on here has ( not sure if his 110 has been put on the road yet though) so hopefully one of them will comment on this thread for you.

Oh and I believe Ash Witty has done it as well and his is definitely on the road.

Link to comment
Share on other sites

I have changed my bonnet for the later puma bonnet type as I carried out an engine conversion and the turbocharger was about four inches too high for the original. I have noticed no difference at all in regards to the airflow flowing through the flaps when out driving.

  • Like 1
Link to comment
Share on other sites

I can't say I've noticed a major change in vent effectiveness whether I have my bonnet mounted spare wheel fitted or not, and that must disrupt airflow more than the humped late bonnet. It does have an effect on the windscreen washer jets, though.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...

Important Information

We use cookies to ensure you get the best experience. By using our website you agree to our Cookie Policy