jogger321 Posted March 21, 2018 Report Share Posted March 21, 2018 Just noticed that on my TR6 this is missing... My biggest worry is the car overheating on a hot day in stop start traffic in town... Does it do more of a job in keeping the heat down in this sort of situation or on the open road? Quote Link to post Share on other sites
Fireman049 Posted March 21, 2018 Report Share Posted March 21, 2018 Hi jogger321 ~ What do you mean by a 'Cardboard Heat Deflector'? Tom. Quote Link to post Share on other sites
astontr6 Posted March 21, 2018 Report Share Posted March 21, 2018 Hi Jogger! If you are talking about the Cardboard Heat Deflector that is in front of the Rad to Grill ? Yes it does as it forces cool air through the rad core and guides cool air to the air filter unit. In my view it s/b there!! Bruce. Quote Link to post Share on other sites
DRD Posted March 21, 2018 Report Share Posted March 21, 2018 Radiator air duct (910442) - Moss have them on special offer at the moment at £21.44. Easy to fit. Quote Link to post Share on other sites
aardvark Posted March 21, 2018 Report Share Posted March 21, 2018 In my experience the new cardboard versions will weather rapidly to such a point that you will probably feel the need to replace it in a year or two. The Ali versions will last forever but cost twice as much - approx 40 to 50 quid and arguably look much better. Cheers Dave Quote Link to post Share on other sites
AarhusTr6 Posted March 21, 2018 Report Share Posted March 21, 2018 get a nice shiny metal one.. looks the dog b..... ! Quote Link to post Share on other sites
jogger321 Posted March 21, 2018 Author Report Share Posted March 21, 2018 Hi Jogger! If you are talking about the Cardboard Heat Deflector that is in front of the Rad to Grill ? Yes it does as it forces cool air through the rad core and guides cool air to the air filter unit. In my view it s/b there!! Bruce. That's the one thanks...Sounds like I should get one pronto! Quote Link to post Share on other sites
jogger321 Posted March 21, 2018 Author Report Share Posted March 21, 2018 In my experience the new cardboard versions will weather rapidly to such a point that you will probably feel the need to replace it in a year or two. The Ali versions will last forever but cost twice as much - approx 40 to 50 quid and arguably look much better. Cheers Dave Haven't seen the ali ones...Is there not any concern about metal to metal rubbing on the rad? Quote Link to post Share on other sites
aardvark Posted March 21, 2018 Report Share Posted March 21, 2018 No, check them out. Chap on eBay sells them - made in Coventry too. Superb quality. Quote Link to post Share on other sites
stuart Posted March 21, 2018 Report Share Posted March 21, 2018 In my experience the new cardboard versions will weather rapidly to such a point that you will probably feel the need to replace it in a year or two. The Ali versions will last forever but cost twice as much - approx 40 to 50 quid and arguably look much better. Cheers Dave Not my experience, the cardboard one on my 4a is now 25yrs old and still works and looks fine. Ali or Stainless ones will destroy the rad with the slightest nudge in the front of the car whereas the cardboard one wont and would still allow you to drive the car. Stuart. Quote Link to post Share on other sites
D1070 Posted March 21, 2018 Report Share Posted March 21, 2018 Racetorations do ducting in fiberglass coloured black,simple but effective Quote Link to post Share on other sites
DRD Posted March 21, 2018 Report Share Posted March 21, 2018 Not my experience, the cardboard one on my 4a is now 25yrs old and still works and looks fine. Ali or Stainless ones will destroy the rad with the slightest nudge in the front of the car whereas the cardboard one wont and would still allow you to drive the car. Stuart. +1 Quote Link to post Share on other sites
aardvark Posted March 21, 2018 Report Share Posted March 21, 2018 Not my experience, the cardboard one on my 4a is now 25yrs old and still works and looks fine. Ali or Stainless ones will destroy the rad with the slightest nudge in the front of the car whereas the cardboard one wont and would still allow you to drive the car. Stuart. Quote Link to post Share on other sites
aardvark Posted March 21, 2018 Report Share Posted March 21, 2018 I did say the new ones dont weather well. If the slightest nudge is enough is move the Ali rad shroud then I recon youve had a significant frontal. Theres a lot of metal to bend up front before the impact reaches the Ali shroud. Quote Link to post Share on other sites
RogerH Posted March 21, 2018 Report Share Posted March 21, 2018 Not my experience, the cardboard one on my 4a is now 25yrs old and still works and looks fine. Ali or Stainless ones will destroy the rad with the slightest nudge in the front of the car whereas the cardboard one wont and would still allow you to drive the car. Stuart. I made my own stainless steel cowling on the 4A and my main concern is any front impact, no matter how light, may well take the rad out. I've been thinking about a corrugates stainless on; but I haven't ever seen corrugated stainless. Roger Quote Link to post Share on other sites
aardvark Posted March 21, 2018 Report Share Posted March 21, 2018 Thickness of the metal is key. Its in plane stiffness needs to be less than that of the bonnet so that the load is taken by the bonnet. Avoid thick steel shrouds, look for thin Ali instead. That way, if it does see an impact, it will corrugate by itself. As Ive said, an impact sufficient to transfer through the main front structure and via the shroud to break the rad would, in my opinion, give you some personal injury worries such that a broken rad wont be high on your mind. Quote Link to post Share on other sites
North London Mike Posted March 21, 2018 Report Share Posted March 21, 2018 Fibreglass on LNK POP QUIZZ Why didn't the TR5 have one, but it was reinstated on TR6 ?? Quote Link to post Share on other sites
lightningburns Posted March 21, 2018 Report Share Posted March 21, 2018 On my standard fibreboard version I just brushed on watered down waterproof unibond prior to re-fitting, keeps the cardboard stiffer, stops bowing and waterproof, also keeps the orig colour and look. In fact I do that on all the fibreboard panels (door cards, boot boards, glovebox etc) Regards, John Quote Link to post Share on other sites
stuart Posted March 22, 2018 Report Share Posted March 22, 2018 Thickness of the metal is key. Its in plane stiffness needs to be less than that of the bonnet so that the load is taken by the bonnet. Avoid thick steel shrouds, look for thin Ali instead. That way, if it does see an impact, it will corrugate by itself. As Ive said, an impact sufficient to transfer through the main front structure and via the shroud to break the rad would, in my opinion, give you some personal injury worries such that a broken rad wont be high on your mind. Any impact lower than the bonnet edge will do it Im afraid, i.e. towbar or rear bumper on any other classic or an animal Stuart. Quote Link to post Share on other sites
JochemsTR Posted March 23, 2018 Report Share Posted March 23, 2018 I removed the cardboard airduct with the thought of installing a nice metal version. Unfortunately, the fit wasn't that well. I decided to leave it off completely. I did not find any cooling issues during my trips in the Dolomites. I am running with 2 temperature sensors and SPAL elec. fan. Good or bad cooling all depends on how well the system is maintained. Regards Jochem Quote Link to post Share on other sites
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