Subjated

its a fair point but I guess anything coming off at high speed will cause some damage, I remember my dad had an old Vauxhall and driving home one day the rear window just fell out, no one around him, but I guess anything could happen! like you say very difficult to test that, and wind tunnels are not real world environments for this anyway, I'm pretty sure that these are also taped down but cant see what with on their website, or any recommendation at all, I'm assuming your ones came with the tape then did they? also I don't think its fair to say its just a "gut" feel, I've done some maths and its viable. As with all these types of things its always personal preference, I can make a recommendation and ill post how I eventually fit mine, but like you say there are many variables , and someone may come up with a better fixing solution, I would be manufacturing, not installing, but as we both say tiger seal is probably the way to go if you have a nervous disposition about it.

Do you know what type of plastic the ones on your mustang are made from? Aluminium (at least the grade we use has a density of 2.71gmm3 and the average plastic is around 1.65gmm3, so an alu version of the one you have would not even be double the weight, would you be not confident sticking your mustang one on if it was just 3KG heavier? Moving on from above, as Bam points out below has anyone ever heard of them coming off. Ever? I agree the fixing has to be good, but i cant be held responsible for poor fitting, I'm more than open to suggestion on how is best to fit it, but if your really worried, you could stick it on with tiger seal and if you can get that of ill be amassed if the glue fails before the part if you tried to get it off. for those that are interested, regressing back to my uni days, I did some calculations (which is really difficult to work out as it depends on the drag co-efficient of the car, the density of air (which varies with moisture content temperature etc etc) bumps in roads, but based on lab type conditions, the bond strength of tape is about twice the strength of the pressure load of air at 100mph, and lets not forget these are on the back of the car not the front, the shape of it will mean wind force is only pushing down on the screen and generating no lift, there are far too many variables here anyway, you say you wouldn't want to be responsible for producing the product, but what about the tape? what if that came from a bad batch? wouldn't be any louvre manufactures fault at all if that failed. I can sympathise with everyone's view on this, but personally even using the correct high bond tape (again variables there, surface prep, batch problems etc etc) , A, I would be amazed if it failed at all, B, id be utterly dumbfounded if it failed completely all at one time and came loose whilst driving at 100 mph ( which obviously is illegal anyway) as opposed to maybe working loose over time. I fully appreciate everyone is entitled to their opinion, but mine is with the correct tape/product, and correct prep, its not moving for toffee, that said, as the design develops ill see if there is a possible supplementary fixing system that could be designed and many thanks for the well wishes had a quick search and yes, it does seem there are a few out there offering an alu version already, and like you say not heard of any failings. thanks for the interest ill keep this page updated with design and prototype pics etc etc

What an &%!@! ill sort out all proper registration in time, and if people pay via PayPal there money is protected isn't it? I'm not too sure, but I certainly wont be running off with anyone's money that's for sure! as for fixing and weight, I think that good strong 3M tape will hold it, I've used it at work to bond in 10KG glass windows in door and you'll struggle to get it off without smashing the glass, but I figure if I make the fit as good as possible, people will have the best chance of fitting, but like I say there are a few options and I'm going to explore this further, and educated guess work I think the weight will be around 7-8kg, possibly less, I'm not sure too many people will think that's a lot? I reckon I put that on over Christmas so ill gain that weight back when the gyms re-open! thanks for the good wishes, be nice to help each other out, what the forums are for

Great Hopefully we can get a list going soon This is how I was planning to attach them to my car, I have seen versions on other cars that have a thread post type things which is glued to the screen, then the panel is screwed down, but this involved putting holes in it, I think ill leave holes out of it so people can have both options if need be holes can be drilled into the part

I personally am not in too much off a rush to get it fitted to my Z as she's all tucked up for the winter, hence why I thought now might be a good time. however I'm happy to crack on with it as I appreciate others my want there's sooner, but realistically its likely to be around 6 weeks by the time I get to a production ready piece, but it may well be sooner, ill keep my progress updated here as best as I can. as for the rules I've spoken to the mods and sorted all out with them, so will be all good to go before I sell anything, to keep within the rules

Firstly Happy new year year all! secondly I'm relatively new to the forum so hope that this is ok to post/ right place to and I'm not sure on the selling rules so hopefully the mods or someone can let me know, where is the best place to ask So I am an engineer by trade (sheet metal mainly) and also a great lover of the rear window and side louvres for the 350Z. however I'm not a great lover of the rather high price these seem to be! Anyway long story short, I asked my boss if I can make my own, and he says it ok (if I pay him for the shop time and materials used) now ill have to design and produce my own version of this so that it properly fits the windows, but as with most things one off bespoke parts are far more expensive that bigger orders. so if I can get 5 (hopefully 10) people interested, by the time I have the design right I think they would be around £170 painted (powder coated Gloss black, but I guess they could be any colour) made from aluminium, lightweight and doesn't rust! need to check that and ask to work out for the side louvres. just wanted to check if anyone is interested as ill definitely be making at least one for myself, and it could be a good deal if anybody else wants one, let me know

Sorry just seen this, managed to keep the nice looking bit of carbon and get an original airbox of @ZMANALEX fitted a high flow air filter and she made 292bhp so not bad I thought, dunno if it is or not but it shifts!

dunno how to rotate it! but here's my one

PM Sent

I have a 54 plate silver 350 with white wheels, and i live about 10 miles down the road not sure its me though as i don't often drive that route, unless the other half has been taking it for joy rides! interesting to know if there is another one in the area though!

NGK I Believe it is then Ill send a PM, also i've put a pic below of the engine bay, got any idea what this intake is? there is a vacuum hose underneath connected to the carbon fibre bit, anyone know what that's for? ill buy another system if need be, just want to get it done correctly before the tune, as you say don't want to change things after,

350

always standard, no point for platinum's or iridium's in these?

thanks guys be great if I can borrow one! looking at eddies point though am I best to try and buy one (maybe yours is up for sale davey ) and keep it with whatever it goes on the dyno with? or keep the cone thing and try and make a box up for that? when I spoke to Horsham they said that cone filters could cost 15BHP that seem loads to loose, is keeping the cone filter and the bhp gain possible?