Front Grills, do they raise temps?

[carl s]

Lot's of people have recommended getting a set of front grills to protect my new a/c condensers but has anyone seen oil & water temp rises after they fitted the grills? The reason I ask is that I've come from the MX5 world where it's generally accepted that adding a grill to the "mouth" of an MX5 raises temps. I had oil & water VDO gauges on my last MX5 and the oil temp went down by 12 degrees, water down by 18 degrees during fast motorway cruising - just by removing the aftermarket front grill.

[Davey P]

I haven't noticed any issues on mine, but then again I didn't really take note of the temps before the grilles were fitted.

The car does seem to take quite a while to warm up to operating temperature (i.e. The water and oil temps are slow to rise) but of course that might have been the same previously. Sorry that's not really much help, but others on here will no doubt come back with a definitive answer.

[Menoporsche]

Never hear of anyone reporting that experience here, only the rumour. 
Had mine for a decade without problem. 

[carl s]

8 minutes ago, Menoporsche said:

Never hear of anyone reporting that experience here, only the rumour. 
Had mine for a decade without problem. 

Thanks, did you get Zunnsport grills or make your own?

[Carmine]

I bought my car 2nd hand from an OPC and when I queried the lack of grills (I got in touch with the PO before closing the deal) the sales manager told me with a straight face that they had to remove them as they might cuss the car to overheat. I struggled not to laugh out loud.

I happily run them on my car - any effect they have on cooling is surely marginal and offset by the lack of leaves, small birds and litter that can get scooped up without the grills in place.

[Menoporsche]

Zunsport. Note I have a 987.1. But still, never heard of a problem in the 10 years the 981 is out. 

[JTBoxster]

I am getting some Rennline ones fitted next week so will let you know ! 

[Paul P]

I doubt they actually cause an issue, but I had an OPC service manager explain it to me once - he said "if we say 3rd party grills are OK, then someone turns up with 2 bits of plywood with a 5 mm hole in them, we can't say "your grills are causing the problem even though they obviously are, we also can't say brand x is ok but not brand y or diy - so unless porsche themselves sell them or rebrand them - we are kind of stuck with the company line ...."

Porsche should provide as standard or as an option in my opinion if they are going to take a position on it, but as we know - they don't

[carl s]

Makes sense from the dealer perspective

[Liberty]

No more than having condensers in front of radiators maybe 🤔

[Patt]

The GT cars have mesh as standard !

I made my own protection from plastic mesh off ebay - think it cost me £12 and a half day to trim and make tidy.

2.5 years of warranty work at Porsche Reading and not one rejected for the mesh.

No extra temps noticed either.  Plus if I was concerned I just switch on sports mode and they drop back down - even stationary in traffic.

[Menoporsche]

1 hour ago, Paul P said:

 I had an OPC service manager explain it to me once - he said "if we say 3rd party grills are OK, then someone turns up with 2 bits of plywood with a 5 mm hole in them, we can't say "your grills are causing the problem even though they obviously are

 

I got a grade A for my Law O-level, do you think I should offer my services?

[iborguk]

Just now, Menoporsche said:

 

I got a grade A for my Law O-level, do you think I should offer my services?

You got an ology ?

[Menoporsche]

I certainly don't have an ope...

[Patt]

14 minutes ago, iborguk said:

You got an ology ?

OMG I remember that advert too.

[carl s]

14 minutes ago, Patt said:

OMG I remember that advert too.

Maureen Lipman if I'm not mistaken 😄

[carl s]

2 hours ago, Carmine said:

I bought my car 2nd hand from an OPC and when I queried the lack of grills (I got in touch with the PO before closing the deal) the sales manager told me with a straight face that they had to remove them as they might cuss the car to overheat. I struggled not to laugh out loud.

I happily run them on my car - any effect they have on cooling is surely marginal and offset by the lack of leaves, small birds and litter that can get scooped up without the grills in place.

It's possible that the aerodynamics of the MX5 works differently from the Boxster/Cayman, The MX5 mouth is very central and on a curved section, whereas the a/c rads are fairly perpendicular to the ground and on the sides. Whatever the reason it's good that the grills don't have such an effect  as they do on the MX5 👍

[Topbox]

1 hour ago, Patt said:

OMG I remember that advert too.

 

1 hour ago, carl s said:

Maureen Lipman if I'm not mistaken 😄

OMG I can remember when Maureen Lipman was hot, well, luke warm at least.

[Paul P]

1 hour ago, Topbox said:

 

OMG I can remember when Maureen Lipman was hot, well, luke warm at least.

Go on then.  Find a photo of “luke warm Lipton”.  

[daz05]

No.

[Topbox]

6 minutes ago, Paul P said:

Go on then.  Find a photo of “luke warm Lipton”.  

Just Google "Maureen Lipmann The Sweeny", I CBA to do the necessary to post here 😁

[Paul P]

Ok. Fair point well made 

[iborguk]

1 minute ago, Paul P said:

Ok. Fair point well made 

The one on the left ?

[Menoporsche]

They already had colour by then?

[Paul P]

1 hour ago, Menoporsche said:

They already had colour by then?

Rose tinted goggles.  
 

“ leave it guv’nor - he’s had enough “ 

Edited May 4, 2023 by Paul P