You have just been contributive again! Clearly you just have hurt feelings from previous posts but you also still have nothing constructive at all to contribute or make other than just unrelated trolling tactics and comments! Next time try to offer something constructively critical at the least, instead of hijacking someone's posts because your emotional feelings are bent! :sorry: This author of this post has made a great contribution by supplying this knowledge - it doesn't need to be destroyed by your baggage /s. I would not have replied to this trolling but your making a habit of it! :nono: ..........Great contribution to the forum once again mate!
Firstly, GMBrezzo and I are longtime friends(and frequently jibe each other). Secondly, 'Get a Life'(and while you're at it, pick up a Sense of Humour). Thirdly, NEVER enter a 'Battle of Wits' without bringing some ammo!:rofl:
Awwwwhawhawhaw Boost. Its Illadvised to poke that particular old bear!!!!!!! Stand and deliver sir, or just walk away!!!
"Old Bear"?? Come on Tas, if you want a hug, just say so. I can be very accommodating(if I'm in the right mood).:rofl::zlove:
So after all the bullshit posts, is foaming a good, cheap way of helping the handling of a road going Z or not.
Wouldn't waste my money on a road car even a track car throw a full cage in. I only use foam in the bath .
That clip of michael never gets old hahaha! You are right it was just a poke...nothing more... I could not be bothered to say what I really think or I would have got a bunch more of his "verbiage" as he would put it pulled straight from the Thessarus he keeps right next to his computer in an effort to try bamboozle ppl with his "Rhetoric" rather than talking about something adding value to the thread. ---->ring a bell :zlove:[TIS][TIS]:br:
I researched this in depth and was a hair from pulling the trigger on the foam from a supplier in Victoria, totalling to approx. $650 delivered. In the density required to actually support a chassis and quantity necessary I estimated it would add approximately 40-50 KG of weight. Because of this I decided to seam weld the car instead. Yes it will work. yes it will probably be pretty good, too. but it is a big job and will add a chunk of weight.
http://www.google.com.au/url?q=http://forums.nicoclub.com/chassis-stiffening-foam-result-part-1-qualitative-result-56k-no-go-t270721.html&sa=U&ei=CCRNU4mMMcXXkAXw8IHwDw&ved=0CA4QFjAB&usg=AFQjCNGTft1allvc0BmPB9t481x1l_4LhA I like the idea and have noted that Nissan use this in their best cars NOW. If the 300zx was being built now, I think Nissan would use it in the car. I am not sure if I can do this myself anytime soon. The A pillar and C pillar are probably the most important ones to fill. Not sure how to do them. The link above mentions it.
That cannot be right at 0.65cu/ft Some things wrong here A with your calculations! With density at 6.5 lbs./cu.ft ??? Based on your figures of 40 50 kg (120lbs) at .65lbs/ft it means your using a total of 78 CUBIC FEET of foam! Even if I put a Z in a box then removed the Z and filled the box completely up the box would be 280cu/ft! and would require 182lbs of foam at 0.65lbs/ft which is approximately 2/3 full! - (Not the Z - the box!) Your not supposed to fill the whole inside of the car up with foam mate No wonder it costs $650 to your door for some foam It should perhaps have read more like 5kg mate and therefore have cost significantly less, being just foam. Maybe you missed out on a decimal place mate (50kg vs 5.0kg) - don't worry - even I have done that before mate! You had me there for a minute - until you said 50kg of FOAM! :rofl: Now seriously: Any interested parties in a GB for this stuff ? I think any grade would be fine, but am currently talking to the manufacturer about recommendations between the 50A/60A/70A for the 300ZX (I assume at this stage it would be the 70A we would be looking at) - I will get back if others are interested - then move it to a GB thread and provide estimates there on qtys etc Why am I doing it? Rust proof the inside of the chassis rails Reduce vibration by absorption through the foam Increase slight strength and improve slight rigidity of the chassis rails
I am interested but would like to hear about how it is done on a Zed. (A targa top Zed) I am actually hoping that someone who has their interior out will give this a go.
Think you will be surprised at how easy this is! Mate I think you will be surprised at how easy it is to get this stuff in, that you will find you do not have to strip your interior out - but rather just remove selected parts. You should be able to use the pressure of the can to push this in a fair way through basically a small hole. So it should not warrant stripping given the Z's components. Hopefully we wont even have to go through a GB by purchasing here in oz - but I am speaking to the manufacturer as I want only the stuff approved by GM/Ford/Nissan that is compliant with the relevant specs (that the manufacturer has conformed to in specs and supplies) - so hence I am contact with the manufacturer at the moment. I will also look at whether we can get bulk under price, in which case I will look at a GB for us. Cheers JC
Yeah I wouldn't The amount of movement of the various sections & cavities in the chassis is so small the foam would have to set stiffer than glass to even pretend to make any difference at all. Foam filling of steel structures came about to assist in crash test results, it helps reduce the amount of crush in pillars & sills etc in the event of a serious crash, it wont do SFA for stiffness of the chassis - unless you are driving a flimsy pile of crap. Foam is used as a core with composite constructions such as control surfaces on modern air craft as it provides a very light relatively strong way of maintaining correct distances between the surfaces that are doing all the work to hold the item together. It does provide a minimal amount of actual strength itself but it's real purpose is to stop buckling/collapsing of the actual structure. For foam filling to be of any real use in a steel structure such as a Z32 chassis this would infer there was significant movement of the surfaces that make up the structure. IE: you would need to see the skins of the sills moving & creating wrinkles along the surface while the car was being driven - same as what you see after a crash but to a lesser extent. Any of these two pot foam mixes out there that you can by can be formed into a cylindrical or square or hexagonal (shape doesn't mater) tube or rod, then bent over your knee & snapped with ease - even at the sizes of the sills & pillars etc. They can be twisted with your bare hands no problem at all, how do you think that will go when put up against ~1500kgs of metal being put through its paces? When you see the likes of the stupid crazy mental fast expensive super cars that are out there today with carbon fibre alloy composite chassis you will find some of the chassis sections are foam filled - but only in the carbon fibre sections, not the alloy sections.
God damn what a long winded load of shit that was Jamie. Your density figure a massive underestimation. I really don't care to argue about this stuff because there's nothing in it for me but maybe do much, much more research before waxing lyrical.
This stuff must be expensive and heavy being foam! OH Really???? Then what are your density figures so we can calculate your figures???? I got mine direct from the manufacturer! I have it in PDF even 50KGs of FOAM!!!! Your seriously joking! Provide the density - better still - the quote and link - I can! Don't waffle on shit Anthony to cover your mistake - be a man and provide the proof or just admit your human and ****ed up a single decimal place - like I said mate - I have done this before myself - there's no shame in it! This is somewhat partly true and partly contradictory and partly wrong Your quotes I have put in italic and bold: The amount of movement of the various sections & cavities in the chassis is so small the foam would have to set stiffer than glass to even pretend to make any difference at all. I suspect that it would actually have some glass at a molecular level in the dispensers given the size of them (similar to foam insulation being used in construction) to conform with the relevant specifications. it is certainly expanding and sets like a glass but I will have to defer on this further until I obtain an MSDS for the specific product. it helps reduce the amount of crush in pillars & sills etc in the event of a serious crash It does provide a minimal amount of actual strength itself Almost sounds like a roll cage doesn't it? Exactly what I said - provides an increase in slight strength! For foam filling to be of any real use in a steel structure such as a Z32 chassis this would infer there was significant movement of the surfaces that make up the structure.[/I] This is correct! EVERYONE knows there is movement in the chassis rails! This is why we spend hundreds, if not thousands of dollars in trying to brace them to reduce this flex and metal fatigue (at a molecular level) IE: you would need to see the kins of the sills moving & creating wrinkles along the surface while the car was being driven - same as what you see after a crash but to a lesser extent.[/I] This would imply that you need to see the same in aircraft for it to be of effective value yet it is still used. You actually don't need to see any sills moving at all it only needs to occur at a molecular level for metal fatigue to occur. In addition the whole design of the chassis rail and the design of the car itself is purely designed to assist in reducing this wrinkle forming in the first place. This is why I stated it improves slight rigidity of the chassis rails Any of these two pot foam mixes out there that you can by can be formed into a cylindrical or square or hexagonal (shape doesn't mater) tube or rod, then bent over your knee & snapped with ease - even at the sizes of the sills & pillars etc. They can be twisted with your bare hands no problem at all, how do you think that will go when put up against ~1500kgs of metal being put through its paces?[/I] It is a scientific fact, it is slightly harder to bend a tube / rod or any shape with any substance inside it, then it is to bend it without anything in it. So in this regard if your strong enough to bend your chassis rails in your hands then your indeed pretty strong. If you crash your car at its paces, nothing will save your car anyway. How you come to link twisting a chassis rail with your bare hands and 1500kgs being put through its paces is mystifying! Given it is a scientific fact it is slightly harder to bend a tube with anything inside it than a tube with nothing inside it - is exactly the reason why I only said - it improves slight rigidity of the chassis rails? When you see the likes of the stupid crazy mental fast expensive super cars that are out there today with carbon fibre alloy composite chassis you will find some of the chassis sections are foam filled - but only in the carbon fibre sections, not the alloy sections?.[/I] This is actually incorrect! There are now many inexpensive and mid-range price cars out there with foam filled alloy sections! I am happy to obtain a list if you intend to dispute this! You forgot to mention or cover: Rust proofs the inside of the chassis rails Reduce vibration by absorption through the foam I do agree that it is not a complete solution as you would imply. but ...IT IS A VERY CHEAP, AFFORDABLE AND LIGHTWEIGHT solution that offers many benefits over NONE....and hundreds if not THOUSANDS of dollars of alternatives! JC..... Some parts of me must be missing as well!
Not in my humble opinion! I have rarely met anyone(other than Professional Race Drivers)who could genuinely gain ANY advantage from such a mod, nor have I ever encountered a situation in which MY "driving prowess" has been hampered by a shortcoming in my Z32's handling/road-holding(and I am not known to 'drive like a Granny', in most instances). It's all Wank Factor IMHO!:br:
great comparison and logic there mate! Professional race drivers cars cost millions of dollars and are made mostly of pure carbon fibre- this is a poor and stupid comparison to a cheap, lightweight and cost effective solution! :W: indeed! and...I hope you live near the sea so your chassis can rust from the inside out! :rofl: JC
