April 22, 20159 yr Like I said before, the suspension did not have anything to do with my current project. I have some designs for bigger cars of scale 1:8 or 1:7 but for bigger car you'll need bigger wheels
April 22, 20159 yr Author Exactly, but! Lets take an Opel corsa (Vauxhall) from -99. The car itself is 3.75m with rim size of 13". Tires could be 165/70, giving the wheel diameter total of: 13"+(0.7*0.165)*2 Quick calculation gives: 13" in meters= 0,33m 0.7*0.165*2= 0.231 Total wheel size= 0.33 + 0,231= 0,56m 0.56 / 3.75 ~ 1/7th of the car length is taken up by one tire. The biggest lego tire we have that looks like a normal car tyre is the Unimogs'. 0.943m In lego studs, the tyre is roughly 12 studs. If I want to build an Opel corsa in lego and I want to use the Unimog tyres, my model would get 12*7=84 studs or 65.5cm long. That's impressive! If I want to build it using 8448 tires, the length would be 73 studs or 57cm. For the Unimog tires, the suspension has to feature my setup for the shock absorbers in order to carry the heavy weight and incorporate the full McPherson system
April 22, 20159 yr Exactly, but! Lets take an Opel corsa (Vauxhall) from -99. The car itself is 3.75m with rim size of 13". Tires could be 165/70, giving the wheel diameter total of: 13"+(0.7*0.165)*2 Quick calculation gives: 13" in meters= 0,33m 0.7*0.165*2= 0.231 Total wheel size= 0.33 + 0,231= 0,56m 0.56 / 3.75 ~ 1/7th of the car length is taken up by one tire. The biggest lego tire we have that looks like a normal car tyre is the Unimogs'. 0.943m In lego studs, the tyre is roughly 12 studs. If I want to build an Opel corsa in lego and I want to use the Unimog tyres, my model would get 12*7=84 studs or 65.5cm long. That's impressive! If I want to build it using 8448 tires, the length would be 73 studs or 57cm. For the Unimog tires, the suspension has to feature my setup for the shock absorbers in order to carry the heavy weight and incorporate the full McPherson system exactly - this is my biggest concern when building models - correct tire/wheel proportions - that's why I've ended to (try to) build muscle car with tires from silver champion... Unimog wheel/tire combo is also great for mini before 2001 when started new era with Bmw mini r50. We'll see what can be done when time allows that
April 22, 20159 yr Author Opel corsa tyre ratio Height:Width= 3.4:1 8110 tyre ratio Height:Width= 2.5:1 8448 tyre ratio Height:Width= 2.4:1 Silver Champion racing tyre Height:Width= 1.66:1 The higher the value of the ratio, the more accurate to real life. Ford Shelby rear tyre height: 0.71 m Rear tyre width: 0.285 Gives a ratio of 2,49.... In other words, the Unimog tyre is the best option :D
April 23, 20159 yr Opel corsa tyre ratio Height:Width= 3.4:1 8110 tyre ratio Height:Width= 2.5:1 8448 tyre ratio Height:Width= 2.4:1 Silver Champion racing tyre Height:Width= 1.66:1 The higher the value of the ratio, the more accurate to real life. Ford Shelby rear tyre height: 0.71 m Rear tyre width: 0.285 Gives a ratio of 2,49.... In other words, the Unimog tyre is the best option :D You're right, I was just pointing from my experience when there was no Unimog tire available. but to be honest silver champion tire/wheel combo is interesting for muscle cars from 60s because of metallic silver color
April 23, 20159 yr Author That's true! I just gave you the numbers so that if you decide to bring up the build again, you just go ahead with those wheels. Btw, I think there is a BL store that sells chrome-painted rims that fit in the Unimog tires. Check it out ;) there you have a set of awesome wheels! Status of the project: Due to a LOT of work in my daily job and delay of BL order, I had to set the project aside. I just recieved an order, three more to go which should arrive today or tomorrow. The car will be a 2008 BMW e92 M3. Front suspension is missing 4 important parts, as I get them the suspension will be complete and pictures can be published. The suspension features: Ackermann steering geometry 10 degrees caster angle 2 degrees camber angle Anti-roll bar Full McPherson system Wheel of choice: Unimog tires Model scale: 1:7
April 24, 20159 yr That's true! I just gave you the numbers so that if you decide to bring up the build again, you just go ahead with those wheels. Btw, I think there is a BL store that sells chrome-painted rims that fit in the Unimog tires. Check it out ;) there you have a set of awesome wheels! Status of the project: Due to a LOT of work in my daily job and delay of BL order, I had to set the project aside. I just recieved an order, three more to go which should arrive today or tomorrow. The car will be a 2008 BMW e92 M3. Front suspension is missing 4 important parts, as I get them the suspension will be complete and pictures can be published. The suspension features: Ackermann steering geometry 10 degrees caster angle 2 degrees camber angle Anti-roll bar Full McPherson system Wheel of choice: Unimog tires Model scale: 1:7 Hi the project that is tempting me is to make model with V8 LPE and automatic transmission like on GT500 is this one http://www.hotrod.com/cars/featured/113-0501-1970-plymouth-barracuda/ but I need wheels with some 95mm diameter with skinny sidewall (I mean low profile) one of my ongoing project has to use Ackermann steering is wf-trac 8X8, but like several 4 projects I'm waiting for time to make prototypes to see what parts I need to finish them...
April 24, 20159 yr Author Whats your plan on the automatic gearbox? How many speeds, the driving functionality etc.. :) The plymouth is indeed beautiful :) go go go! Little update on the project: Yesterday I measured out the approximate size of my model by building a frame and set out positions for the wheels. The model is 85 studs long, 32 wide. Wheel positions are 15 studs from the car front to the center of the front wheels, 51 studs wheel base, 19 studs from rear wheels center to the back :) its gonna be huge!
April 24, 20159 yr Whats your plan on the automatic gearbox? How many speeds, the driving functionality etc.. :) The plymouth is indeed beautiful :) go go go! Whats your plan on the automatic gearbox? How many speeds, the driving functionality etc.. :) The plymouth is indeed beautiful :) go go go! Little update on the project: Yesterday I measured out the approximate size of my model by building a frame and set out positions for the wheels. The model is 85 studs long, 32 wide. Wheel positions are 15 studs from the car front to the center of the front wheels, 51 studs wheel base, 19 studs from rear wheels center to the back :) its gonna be huge! 3-speed automatic like original LPE in red like real HEMI engine (14 studs tall) but no 700+hp front suspension http://www.magnumforce.com/magnumforce_tubular_kmember.htm rear suspension http://www.magnumforce.com/magnumstore/shop/item.aspx?itemid=19 rear wheel drive door and hood opening mechanisms seats similar to 8448 set (hope) fully studless probably in black - so it would be a sick fish turned black as I already said wheels are my biggest concern. It would be great to build it (and to finish GT500) and compare it to GT500 Little update on the project: Yesterday I measured out the approximate size of my model by building a frame and set out positions for the wheels. The model is 85 studs long, 32 wide. Wheel positions are 15 studs from the car front to the center of the front wheels, 51 studs wheel base, 19 studs from rear wheels center to the back :) its gonna be huge! It would be huge but great - in this case big is beautiful ;-)
April 24, 20159 yr Check out my Flickr. Just built a mockup of maybe what you are seeking ;) yes this could be good solution for front suspension...now to find out how to stop time, or to make in a teamwork spirit - transmit work and responsibility to someone else to gain some time for LEGO
April 26, 20159 yr Author Update!! Check Flickr, rear suspension almost done. Front suspension same, waiting for parts!
April 27, 20159 yr Update!! Check Flickr, rear suspension almost done. Front suspension same, waiting for parts! Cooooooooooooooooooooool. Very nice solution - If I may suggest something - install bigger differential based on turntable (at least my Cuda will have it - one day)
April 27, 20159 yr Author Cooooooooooooooooooooool. Very nice solution - If I may suggest something - install bigger differential based on turntable (at least my Cuda will have it - one day) We'll see :) the automatic gearbox I'm using will detect the friction in the rear axle and try to overcome it, with an infinite ratio between 1:1 and 3:1. After a testrun, the results will tell me if I should replace it with a turntable diff
April 29, 20159 yr Author Cooooooooooooooooooooool. Very nice solution - If I may suggest something - install bigger differential based on turntable (at least my Cuda will have it - one day) Igor, what do you think? Any ideas on the work so far @flickr?
April 29, 20159 yr Igor, what do you think? Any ideas on the work so far @flickr? so far I think it is quite OK. Front part is getting shape, but I'll wait for final result - it is very hard to predict final outcome, but it looks very promising. Rear multilink suspension looks very good. If it matters I've put your flicker as start page on new speed dial dialog on my opera browser. My current concern is something else - how to put LPE V8 in my cuda with 8448 wheels. so far just small calculations an planing based on one image on A4 paper format...
April 29, 20159 yr Author The only idea I have of a V8-LPE that would fit in scale with the 8448 wheels would be a small pneumatic cylinder V8-LPE. It would fit the scale properly but unfortunately the power would not be sufficient to propel the car due to the weight. Plus it would be very expensive :/ but if you have eight of those cylinders, go for it!! It would be awesome to see! The only ideas I have for a scale 1:8 or 1:7 with a proper LPE clone of an engine that would replicate real life is the following: Big cylinder engines: Inline 3 (transversal mounted) Inline 4 (both transversal and longitudinal mounted) Small cylinder engines: Inline 4 (both options) V4 (both options, though the second uncommon) Inline 6 (longitudinal) V6 and V8 Any feedback? ;)
April 30, 20159 yr The only idea I have of a V8-LPE that would fit in scale with the 8448 wheels would be a small pneumatic cylinder V8-LPE. It would fit the scale properly but unfortunately the power would not be sufficient to propel the car due to the weight. Plus it would be very expensive :/ but if you have eight of those cylinders, go for it!! It would be awesome to see! The only ideas I have for a scale 1:8 or 1:7 with a proper LPE clone of an engine that would replicate real life is the following: Big cylinder engines: Inline 3 (transversal mounted) Inline 4 (both transversal and longitudinal mounted) Small cylinder engines: Inline 4 (both options) V4 (both options, though the second uncommon) Inline 6 (longitudinal) V6 and V8 Any feedback? ;) I have one inline-3 engine but I'm probably too dumb to create transverse manually controller transmission, so I need 5 pneumatic cilinders and one switch to modify (have 12 pneumatic cylinders and 3 light bluish gray switches - studded). I'll go for proper big block V8, but I have to create all other parts, chassis, suspension etc based on LPE V8 model and final step to contact one good friend of mine to modify before mentioned parts. Model will have front independent suspension and rear dana-6 type suspension, but I'll see -perhaps I'll use Unimog wheels.. small cylinders are expensive and I have only 4 of them, and for me it is a blasphemy to make muscle car model with anything other that V8
April 30, 20159 yr Author Thats true, I agree. Is your friend Alex (Nicjasno)? Have you considered any 3rd party tires that fit the 8448 rims?
April 30, 20159 yr Thats true, I agree. Is your friend Alex (Nicjasno)? Have you considered any 3rd party tires that fit the 8448 rims? Yes is an answer to both questions... but I'll take step by step, if you have some idea wether conrad or similar electronic shops have something suitable for 8448 rims and with slightly bigger outer diameter for pair of rear tire that would be probably the first step to do...
April 30, 20159 yr Author Yeah, he's a nice and very helpful dude. Regarding tire shops, I have no idea. Google :D Rear suspension has been rebuilt, pics coming soon. The result is much stiffer and better now! Let's put that aside and have a look at the rear part of the car
May 5, 20159 yr Author Just mailed BL-store, pissed off. I placed the order and paid for it 3 weeks ago and the guy still hasn't sent the package... It is so frustrating as I really need what is in the box in order to continue my build
May 5, 20159 yr Just mailed BL-store, pissed off. I placed the order and paid for it 3 weeks ago and the guy still hasn't sent the package... It is so frustrating as I really need what is in the box in order to continue my build I know the feeling. It happened to me several times. Sometimes my bank made transfer to wrong account, so money was on some temporary account for months...so I've decided to buy set for part when they are on discount; like on Saturday 50€ for 42000 set... but good news; I'm 90% sure that the car that will be template for my model is 1971 g-force cuda... http://www.hotrod.com/features/shop-tours/0604phr-1971-plymouth-barracuda-builders/ but with just two headlights... ...looking forward to see progress of your masterpiece
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