Snagger Posted August 12 Share Posted August 12 If you are sure it’s apt he hot air trapped under bonnet, can you not just remove the bonnet for the heavy off-roading? Even as a single trial, it’d give some indication whether you’re Barkering up the right or wrong tree. Quote Link to comment Share on other sites More sharing options...
Hybrid_From_Hell Posted August 12 Author Share Posted August 12 I did that a long while back ….and it proved the issue was that heat couldn’t get out !…. Quote Link to comment Share on other sites More sharing options...
Snagger Posted August 12 Share Posted August 12 Well, if that proved the problem, then the cure is to drive without the bonnet or to increase the ventilation through it. Fans aren’t going to work. You need more vents. In your position, I’d remove the engine driven fan and the two pushers - they are just adding to engine load with marginal cooling effect at best and I’d have the manifolds and down pipes ceramic coated - that will have a significant impact. Then I’d remove the cab heater trunking and would fit more open grilles to the wing tops (the standard plastic grilles are too fine and closed), and quite possibly add more vents to the wing tops as well as to the bonnet. It might not be pretty, but that sort of passive system is going to be far more beneficial than energy consuming fans trying to push air through excessively narrow restrictions. 1 Quote Link to comment Share on other sites More sharing options...
landroversforever Posted August 12 Share Posted August 12 3 hours ago, Snagger said: If you are sure it’s apt he hot air trapped under bonnet, can you not just remove the bonnet for the heavy off-roading? Even as a single trial, it’d give some indication whether you’re Barkering up the right or wrong tree. It's what I suggested ages back. 1 hour ago, Hybrid_From_Hell said: I did that a long while back ….and it proved the issue was that heat couldn’t get out !…. So proves that strapping more and more fans to the front isn't fixing it... it's just a plaster to stop the bleeding on a broken arm with a bone sticking out. Difficult getting heat out, then minimising what goes in must be you first port of call surely? So I'd be going straight to ceramic coating IMO. If you haven't got anyone local and want to use Zircotec in Abingdon, shout if I can help at all. They're only 10mins or so from work and just off my route to/from work. Quote Link to comment Share on other sites More sharing options...
Ed Poore Posted August 12 Share Posted August 12 Mad max style but would rerouting the exhausts out of the bonnet as twin stacks help. Shorter path to get the heat out. 1 Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted August 12 Share Posted August 12 On the EWP/restrictor plate - there's also the risk of steam pockets in the heads, with a bit of back-pressure on the "exit" from the top end you discourage steam pockets from forming. 1 Quote Link to comment Share on other sites More sharing options...
Hybrid_From_Hell Posted Thursday at 07:58 AM Author Share Posted Thursday at 07:58 AM On 8/12/2024 at 8:12 AM, Snagger said: Well, if that proved the problem, then the cure is to drive without the bonnet or to increase the ventilation through it. Fans aren’t going to work. You need more vents. Well, ......Actually it is cured / sorted, - The fans + EWP150 + Louvres all etc work perfectly fine, Only when its really really pushed super f hard in really really tyres deep goo do they all kick in ..........and then the top 2 fans come on only for a very short while............ These JED 5.1s / 2s and 3s in the high end specs are renowned to be pigs to keep cool and under control, mine is a solution, others have done other solutions be it rear mounted etc - again often with multiple fans etc - easier on a comp racer tho with speed open underneath and fast air flow, but still can be pigs This was more of an 'update' post on a solution of how sorted vs a 'how do I post' Quote Link to comment Share on other sites More sharing options...
landroversforever Posted Thursday at 08:47 AM Share Posted Thursday at 08:47 AM Its just people looking out for you. The 'solution' is more of a plaster on a broken arm rather than fixing it. Quote Link to comment Share on other sites More sharing options...
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