Hi all, has anyone used any of those front hidden spoilers and do they have any feedback on them? Recent quite hot temperatures in the UK has made me start to look at ways to improve cooling efficiency, running on the red line never makes for a truly relaxing drive! Many thanks, Tariq
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What do you mean about " hidden" spoiler? I have heard of the TR-6 front apron. Hard to imagine "hidden" as to be effective, it needs to block airflow from going under the car making low pressure under the bonnet so increasing radiator flow and front grip. -
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I have every respect for the quality of items sold by Peter at LD Parts, but I've never seen the need for this and dispute his statement "Every Stag needs one of these."
If your Stag is running on the red line, then there is something more fundamental wrong.
Is it actually hot? Or is there a problem with the sender/temperature gauge? Suggest you get hold of an infra-red thermometer and take some actual readings of the radiator - top, bottom, left & right.
If it is running hot, is the radiator clean or partially blocked? Has the block been flushed out thoroughly, including removal and rodding out of the block drain plugs? Is the viscous fan coupling working correctly, or is it freewheeling? Are the brakes binding?
Dave
1974 Mk2, ZF Auto, 3.45 Diff, Datsun Driveshafts. Stag owner/maintainer since 1989.Comment
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I think Peter's spoiler is designed to stop air spilling round the sides of the radiator in an effort to make the rad work more efficiently (ie more cooling air = more heat transfer potential) not the worst idea in the worldPaul - 3 projects, 1 breaker - garage built and housing 2 white Stags. One runs, one doesn'tComment
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Those are all very good points, I do have an infra red thermometer which on next run will use to check if the gauge is reading right, something I've been meaning to do for a while but always forget when finish a run. It's a mostly original car so could definitely be the gauge. If it is running hot I will run through those suggestions. It has been about 4 years since the full engine rebuild that I carried out so might be sediment in there now. It might also be the magnetic electronic ignition installed a few years back, I don't recall it running up to red line when on points... Thanks very much for your suggestion DJT!Originally posted by DJT View PostComment
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The logic sounds really great, was just not sure on the practical delivery of it. Appreciate that UK number plates are larger than continental ones and that is possibly one of the design flaws for the lower vents but the spoiler seems to add further blockage of those vents. I think I need to do some other troubleshooting before exploring this option.Originally posted by Goldstar View PostComment
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It doesn't block the vents it forces the air through the radiator rather than round it. A friend of mine who reads the forum but doeant post has just messaged me to say he has one and it works a treatPaul - 3 projects, 1 breaker - garage built and housing 2 white Stags. One runs, one doesn'tComment
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Aha... thank you for forwarding the message and please thank your friend for their insight and experience. I'll keep that information in mind once I've carried out some basic checks on the gauge. Thanks again!Originally posted by Goldstar View PostComment
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That's all very well Dave, but what are the reference temperatures?Originally posted by DJT View Post
I ask not out of idle curiosity, as I'm still getting puzzled daily by my temperature gauges (LH Head & RH Head) - maybe I need another thread on this as I'm stumped.
Drew
The answer isn't 42, it's 1/137Comment
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I intend to take my car to Italy next summer & I will certainly fit one, why not? He states that below 20 deg c you won't notice the effect & at £36 quid its good insurance in hot weather. Whats not to like? If I keep the viscous fan during my resto I will fit a fan shroud as well, its all about getting air through that rad!
Last edited by Alacrity; 1 July 2020, 16:57.Auto transmission rebuilding since 1979 - for my sins!Comment
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This was also suggested to me, but did not see any answers to my question related to reference temperatures, so I am also interested to know what is normal and what is a problem!Originally posted by dasadrew View Post
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It is a long time since I took a set of readings. I’ve just been out to the garage to see if I can find them, but I can’t. From memory, the top left of the radiator was the hottest at around 90. Bottom right was the coldest at around 75-80. Back of the RH head was also hotter than back of the LH head. These readings were taken after a ‘spirited’ run in Summer. I’ll try and take some more readings next time I take the car out on a good day.
I run an 88-degree thermostat and have a good quality Land Rover viscous coupling. I have also fitted blanking grommets to the 2 a/c hose holes above the horns and fitted a flap type rubber extrusion either side of the radiator. Both of these to ensure that as much air as possible passes through the (standard) radiator.
Dave
1974 Mk2, ZF Auto, 3.45 Diff, Datsun Driveshafts. Stag owner/maintainer since 1989.Comment
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Do you have one fitted, Paul?Originally posted by Goldstar View PostDave
1974 Mk2, ZF Auto, 3.45 Diff, Datsun Driveshafts. Stag owner/maintainer since 1989.Comment
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