ventec Posted March 27, 2009 Share Posted March 27, 2009 Could someone share their DWG. of the the spacers. I do the costing for a Plasma table at work. I could spin a few of these out pretty quick. and cheap depending on the quantity. Link to comment Share on other sites More sharing options...
6spdhlsd Posted April 4, 2009 Share Posted April 4, 2009 DISCLAIMER: The below is a rough approximation. The figures calculated are in no way determined to be accurate. Please review the Notes at the bottom. Let's see here. Of course we're just estimating, but, the advertised curb weight of an average R50 is ~4300lbs. The weight distribution is 62/38 F/R. 62% of 4300lbs is 2666lbs. Assuming unequal distribution left/right*, on a 8% difference, that means that 54% of the weight is on the drivers front, and 46% of the frontal weight is bearing on the passengers front. Meaning that the drivers front strut is supporting 33.5% of the total vehicle weight, or approximately 1450lbs. Consider the diameter of the strut mount bolts, at 10mm (about 3/8"). There are three bolts supporting the strut mount to the vehicle, which means that each 10mm bolt is supporting up to 484lbs at any given moment. Now, the forces exerted on that bolt, are the weight supported multiplied by any acceleration acting on that bolt. Gravity, suspension harmonics, suspension movement, etc. The acceleration due to gravity is 32ft/sec^2 using US units (of course the calculations are easier using SI/Metric units, but Ft/Lbs/Sec are easier for most people to understand. Each bolt, under maximum strut extension is seeing over 3570PSI of force!! Let's also not forget what happens when the truck is compressing the struts, that force will go up exponentially - so much so, in fact, that my own truck broke off the entire strut tower from the inner fender skin! Not something you would want to trust a safety critical part to a washer! *Drivers weight, weight of fuel in tank, and other factors apply here to generate the uneven left/right weight distribution. NOTE: This is also assuming a STOCK bodied R50. Once you add accessories, such as a bull bar and winch, the weight distribution is even more front biased, and the forces exerted on those little 10mm bolts are even more exaggerated. ADDITIONAL NOTE: Also realize that to determine the exact forces exerted on the strut mounts would be very complex, and would have to take into account exact corner weights of the vehicle in question, sprung and unsprung weight, center of gravity, and it would depend on exactly what situation the vehicle is in at a particular point of interest. At rest, the forces exerted on the strut mount are the corner weight of the truck pushing down, and the force of the spring, and the strut pushing up. So you have compression forces acting on the mount from both sides. The calculations above are a VERY rough estimation based on approximated figures and should be taken only as such. These are not accurate figures, but are merely an approximate representation to give you an idea of what is going on in your suspension. This is why it is imperative that you use a high-quality strut mount, such as the OEM Nissan one, and not a cheap mount, like the KYB, which will fail after a short period of use. I am wandering what kind of experience do you have that led you to the analisys and conclusions above? FYI the unit of measure for force is lbs or lb (pounds). PSI = pounds per square inch is the unit for stress. If the bolt in question sees 3570 psi of stress you have a huge safety factor since a grade 8 bolt has a yield strength of 120,000 psi. Link to comment Share on other sites More sharing options...
tekazgtr1984 Posted April 4, 2009 Share Posted April 4, 2009 Could someone share their DWG. of the the spacers. I do the costing for a Plasma table at work. I could spin a few of these out pretty quick. and cheap depending on the quantity. I'd be down for a set. Link to comment Share on other sites More sharing options...
kmgar99 Posted April 4, 2009 Share Posted April 4, 2009 Damn...those are nice...the ones i made don't look that good....but i have the write up on my website Front Strut Spacers Link to comment Share on other sites More sharing options...
E_ROCK Posted April 10, 2012 Share Posted April 10, 2012 Damn...those are nice...the ones i made don't look that good....but i have the write up on my website Front Strut Spacers Nice link, thanks. I think I'm going to my Metal Supermarket guy tomorrow to get some aluminum prices and start on my own spacers. Link to comment Share on other sites More sharing options...
Iceman2989 Posted April 13, 2012 Share Posted April 13, 2012 I'd be down for a set. x2! Link to comment Share on other sites More sharing options...
WOT Posted April 13, 2012 Share Posted April 13, 2012 2009 bro Link to comment Share on other sites More sharing options...
devonianwalk Posted April 13, 2012 Share Posted April 13, 2012 2009 bro Link to comment Share on other sites More sharing options...
Daddy Rim Posted April 14, 2012 Share Posted April 14, 2012 x2! I still have one set that Iwill sell to NPORA members for $110 + shipping if your interested. Link to comment Share on other sites More sharing options...
devonianwalk Posted April 15, 2012 Share Posted April 15, 2012 I still have one set that Iwill sell to NPORA members for $110 + shipping if your interested. They are worth it fella's. I'll testify that these are quality built ... almost look stock. Link to comment Share on other sites More sharing options...
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