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Hello people!
Well, I’m having a creative explosion, and as a few of you know (actually nobody I guess) I’m deeply into designing a car. In fact, I’m into creating a 3D model of it, as realistic as possible.
I’m not entering on too much details, but I have a few technical questions, like what should be the maximum engine’s operating temperature at which an EGR valve is not needed?
How desirable would be to have separate radiators to cool turbos, engine, HVAC and gearbox?
Is an aluminum block sturdier enough to be an active parto of the chassis?
Is Carbo-Titanium really that good? can I use it on chassis?
Is possible to have a quad-turbo induction system coupled with a supercharger on the same engine?
I’ll post some pictures for you to enjoy…
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I almost forgot, this is the chassis only. The body is modeled too, and you can see a sneak peek of it on my profile pic.
Anyway, I’m open to ideas, tips or anything you want to contribute with.
I’m expecting this to be an oportunity to explore your ideas, use your imagination and see it transformed into something you can share with the world.
I’m waiting your feedback 🙂I think we all have played this game. When working on cars I often think that the people who designed these cars had their heads up their a**.
For me every moving part would be grease-able and rebuild-able. Then when opening the hood the engine would be in the open so service would be so easy, The transmission pan would have a drain plug and the filter would be a spin on one just like the oil filter (even the filters would have easy access and would be the same part #). All Suspension arms would be adjustable and bushings would have been anti-seized from the factory to make alignments easier.
I would have all four brakes use the same calipers/pads/rotors, front and rear differentials would be the same as well as all four axle shafts and wheel bearings.I like your car from a design point of view but from the guy who has to work on these things common parts and ease of access/maintenance to me are more significant.
Please do not make me remove the engine to replace the headlight.
interesting…
Aaaah, yeah. the suspension will use exacly the same spring/damper assembly on all four wheels (with different spring pressure for the rear of course) and the same brake pads and rotors.
I just finished some details of the steering, which is electrically assisted (so, no PS pump). the steering rack is extremely easy to access and/or adjust, you don’t even need to lift the vehicle, will be a matter of opening the bonnet, removing a panel and that’s it.
The engine will feature a dry swump system, with an independant external filter (the blue thing on the side picture) which will be standard. The transmission will have an external filter as well.
The only thing that can be complicated is an engine swap, because the transmission acts as part of the chassis, and the engine is caged within, so you will need to literally split the car in half to remove the engine (the chassis is made of 3 cages, the rear cage, the cockpit cage and the front cage, they are held by huge titanuim bolts.
About the hood, yes, it is like any LMP racecar (cite, the mercedes CLK-GTR and the pagani Zonda R) so, when open it will not block anything. It will be removable as well. With the hood open the air filter will be completely exposed.
Another concern will be the wheelsize, those are HUGE. trust me… bigger than lambo’s wheels.[quote=”brokemechanic3000″ post=77979]I think we all have played this game. When working on cars I often think that the people who designed these cars had their heads up their a**.
For me every moving part would be grease-able and rebuild-able. Then when opening the hood the engine would be in the open so service would be so easy, The transmission pan would have a drain plug and the filter would be a spin on one just like the oil filter (even the filters would have easy access and would be the same part #). All Suspension arms would be adjustable and bushings would have been anti-seized from the factory to make alignments easier.
I would have all four brakes use the same calipers/pads/rotors, front and rear differentials would be the same as well as all four axle shafts and wheel bearings.I like your car from a design point of view but from the guy who has to work on these things common parts and ease of access/maintenance to me are more significant.
Please do not make me remove the engine to replace the headlight.[/quote]
I agree with most everything you say except for a few things…
the reason there are different pads and rotor sizes on the rear breaks is beacuse of weight transfer during breaking, more breaking force is required during breaking too the front wheels and less too the rear, if you had the same calipers, pads, rotors, on all four wheels, it would result in less than favorable breaking performance as the front breaks would not be able too put full force down beacuse the rears would lock up in the process, unless however you have some sort of ABS system or proportioning valves that limit pressure too the rear breaks during hard braking… then again this would result in very un even break wear, the front brakes would wear much faster than the rear… yet then again… you could do a occasional break pad rotation every other oil change with the tires…
otherwise i compleetly agree, why do they not have spin off filters and drain plugs for trans filter changes as well as oil filter changes, it would make the job SO MUCH easier… however once you think about it how much fluid is in a automatic transmission, and how long a service interval is between each trans fluid change you would require a rather large filter for this application, i would think no averaged sized spin on filter would be suitable, unless you where too simply change filters with every oil change which would not be too bad compleetly tolerable… why are pins and bolts not lubricated in brakes and suspension from the factory, it would take maybe just a little more effort and time, so many little things the factories do too bring down the cost and time of production… just stupid.
what program is this, i am designing a car myself and want too make a 3D model.
it has a special intigrated chassis rollcauge design, special suspension and transmission, and the engine is very special very unconventional, yet very conventional in some ways… its a race car, front engine rear wheel.
as far as i would do for the chassis i would use a high adhesive strenght carbon fiber, what ever is light but rigid and strong…
for a combo charged system what ever boost you are looking too get i guess, if you want four turbos and a supercharger sure… just remember you don’t want too blow head gaskets and burn holes in pistons beacuse there is too much boost and it runs too lean or just too much pressure and blows head gaskets…
also keep in mind of what fuel your car will require… if you want too run it on pump gas i don’t think combo charging with four turbos and a supercharger will be a good idea 🙂 my car has a specially designed supercharger with a series of turbine fans that compress the air into a narrowing tunnel chamber with a screw shaped centrifugal fan that forces the compressed air outward too further compress it, it is variable drive for more instant levels of boost at lower RPM and at high revs the system releases pressures via blow off valves and reduces drive ratios on the supercharger too maintain boost levels too maintain a certain power level or prevent the engine from self destructing, it is driven buy a driveshaft too the rear of the engine, and as a result of the high boost and high compression it also requires a very high octane fuel… running 93 octane pump gas would just result in the engine spark knocking, and burning holes in pistons and blowing up engine parts all over the place.
[quote=”13aceofspades13″ post=78280]what program is this, i am designing a car myself and want too make a 3D model.
it has a special intigrated chassis rollcauge design, special suspension and transmission, and the engine is very special very unconventional, yet very conventional in some ways… its a race car, front engine rear wheel.[/quote]
It is Blender 2.69, but I would recommend you starting with a less complex program first. Yes, blender is easy when you got used to it, but its interface could scare you. I started in a program called Zanoza Modeler, then I moved to blender.
[quote=”13aceofspades13″ post=78281]for a combo charged system what ever boost you are looking too get i guess, if you want four turbos and a supercharger sure… just remember you don’t want too blow head gaskets and burn holes in pistons beacuse there is too much boost and it runs too lean or just too much pressure and blows head gaskets…[/quote]
Yes I’m aware of the overboosting issue. that’s why I’m using huge and dual intercoolers and 2 pre-manifolds. Ah yes, also the five radiators, and two private oil radiators. I’m serious about temperature and pressure management. Well, going back to the manifolds, those will decrease air pressure, and help avoid forcing the turbos if the supercharger is getting in more air than the turbos could deliver during their spinup. I’m also bringing in a small tank of Nitromethane (not really useful, but funny).
about the engine, I had this crazy idea to use the very same valve assembly as on Formula 1 engines. Instead of springs, they use compressed nitrogen. Those valves allow high RPM, and I’m into an idea of pressure-openning valves, so, they will open due to pressure difference between the cylinder and the manifold, or at least for the intake. Well, is just an idea.
Yes, I’m also including the blow-off valves, on both sides of the turbo system (both the exhaust and the intake of the engine)
Thanks for your feedback. B)I also forgot to mention some features of the body. on the rear, just below the muffler will be a huge wing, it will help keep the car on the ground (it may have a similar force to those used in LeMans, being a bit higher) and the car will also feature four independant flaps, something similar to those on the Pagani Huayra.
The rear brakes, aah yes, you’re right. Happens that just today I was modeling the braking actuatorand cylinder (actuated by a pump rather than a vaccum hose)and I did include the ABS control unit. Trust me, I know for sure that rear brakes are smaller for that very reason, but I decided to make them bigger and the same size to spread the heat better, and to have some kind of cost-reduction. If you could see closely, you’ll nottice that both structures look identical. In fact they are almost identical. I’m planning to upload some pictures of it soon.you have put a lot of thought into this car… i like the design, four radiators! two intercoolers?! and two oil coolers, yea you have cooling covered for sure! my car has a special cooling system, a large radiator and oil cooler located in a scoop on the roof of the car, downside is it gives the car a higher center of gravity, the upside is the cooling system actually creates thrust! it is based off a similar design used in the P-51 Mustang, as cool air passes through the radiator and oil cooler it is quickly heated up and the air expands, the air is now expanded and sort of pressurized, and exits out a large vent in the back of the car creating thrust at higher speeds, thrust enough too cancel out the drag created buy the cooling system.
i was also thinking of having a nitromethane injection system…
for exteem boost situations you could also have a PCM which could be set for ether pump gas or race fuel, the driver could select what fuel he has or octane level and the PCM could adjust ignition timing and boost pressures according too the octane levels used… or you could use a Alcohol injection system, have a seperate tank that holds Alcohol or a very high octane gasoline that could be injected at higher boost levels too prevent spark knock, the PCM could detect spark knock and retard timing and boost levels and notify the driver asking him if he has the correct octane selected.
this engine is a W16. I’m glad you notticed!
Interesting setup your car will have.. sounds fun!
I would like to see the car… 🙂BTW, you could benefit from this guy on youtube…
http://www.youtube.com/user/EngineeringExplainedCORVETTE F-Zero
[URL=http://s49.photobucket.com/user/13aceofspades13/media/CorvetteF-Zero.png.html][IMG]http://i49.photobucket.com/albums/f261/13aceofspades13/CorvetteF-Zero.png[/IMG][/URL]
think of the Corvette F-Zero as sort of a carbon fiber gocart with a massive V8 power plant that is supercharged buy a jet engine with a 7 speed transmission and you have the Corvette F-Zero…. i have been designing this car since i was in middle school, always dreaming of a car with no compromise between some handling capability and still having the ability too reach 300MPH or greater. when i was a kid i used base Corvette race car chassis for my designs and simply designed different engines and transmissions for the cars but wanted something different. the initial design was inspired buy the Corvette concept race car, a single central seat streamlined race car, it featured a 427CI Big block V8 with a majorly overdriven roots blower.
later on i started thinking of my own designs starting with the engine which has changed since then, different combustion chamber designs, different piston head designs, different supercharger designs, different connecting rod and crankshaft designs, cylinderhead and valvetrain designs, and fuels, and this car runs on a mixture of Leaded 150 Octane Gasoline 90% 5% 190proof moonshine 5%Nitromethane and fuel blends can very more or less Nitro… i was exploring all the possibilities for the engine… using some of the technologies as you stated with your car, such as a Pneumatic valvetrain! came up with my own chassis which i have no idea what the exact dimensions will be beacuse i have too build them around the engine and transmission, wheels and tires and driver and seat, and i want the right wheel base and with and thats how the chassis will be built around, the chassis primary construction is a high adhesive strength carbon fiber, the chassis will weigh aprox 40 pounds but is a roll cage chassis intigraded tubular chassis for rigidity, the suspension was going too have the traditional transverse leaf springs corvette used for YEARS! but i decided to go with coil overs… it has SLA suspension with a very long lower control arm at the bottom and a very short one at the top so when the car corners more camber goes in too help cornering, the brakes at the front feature cryogenically treated cross drilled carbon ceramic brake rotors with carbon ceramic pads with vents too prevent gas fade and assist in cooling during hard breaking, with two six piston calipers too double breaking forces and equalize breaking pressure on both sides of the rotor, the rear brakes have a single caliper but the caliper on the rear is much larger and use a special fluid called DOT-6, the wheels like most of the car are made of a high adhesive strength carbon fiber and the tires are racing slicks of a certain compound the belts in the tire are ALSO made of carbon fiber too save weight… the tires come in different profiles and withs and compounds depending on the track, they of coarse are inflated with Nitrogen
the body has changed over and over and over, i wanted too keep a Corvette look but keep it short and streamlined, the car also has a massive spoiler on the front a set of wings that stick out from the sides of the front bumper that rigidly bolt onto the chassis, a massive wing on the rear facilitates downforce greater in pounds than the car weighs at high speeds when the downforce wings are fully deflected, electric servos control downforce depending on braking, cornering, acceleration, over all speed and over all drivers wanted setting… the car has a 7 speed transmission intigraded into a differential that locks when the steering wheel is in a straight line with a series of wet clutches or when the driver manually locks it, it also has a set of clutches that distribute torque too the wheel that would assist steering the most, this helps with cornering and stabilization depending on how much the wheel is turned and how much the gas is pressed….
the cooling system as explained before is based off the P-51 Mustangs cooling system that actually creates thrust, it can also in some cases make drafting the car interesting as it probably creates some sort of a heat wave jet stream behind the car at high speeds….
i watch engineering explained all the time, he is quite knowledgeable and i have learned a few things from him as well as Eric…
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