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Force

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Everything posted by Force

  1. Ouch...looks very simplified...and they still states they have done the best GT40 MkII ever...yeah right. All 427's was not Side Oilers because the 427 came in 1963 and the Side Oiler didn't come out until 1965 so the Tbolt is out if you want a Side Oiler...the engine in the Tbolt is a 427 High Riser with a Top Oiler block. The 3D printed engine Mad Mike does looks about right for the GT40 427 with the correct dry sump oil system.
  2. The wrecker bed is too wide scalewise and need to be cut down 1/8th of an inch on each side. Ohh by the way, there is no "u" in Peterbilt.
  3. It's strange if they do the 2021 car with the change to the Next Gen car 2022, everything is totally different except for the engine on the new car, 18 inch aluminum wheels with center nut, sequential gearbox, independent rear suspension and the body looks different from what they use today. Revell did kind of the same mistake when they did the last NASCAR Chevy SS kit 2017, the year after the GM teams changed to the Camaro body, they are neat kits but got out of date very soon after they released the kit.
  4. Something important is missing...no engine sound no fun.
  5. The bed is too wide scalewise, so it needs to be cut down to look right
  6. Thanks. I have allways been facinated by Nitro engines since I experienced one the first time live in my life, it was a Swedish Nitro Funny Car called Ragnarök who was doing a burnout at a local car show back in 1977, and I have been hooked on Nitro cars ever since and need a shot of Nitro fumes and sound every year to feel complete. That said I have learned a lot regarding Nitro engines over the years, allmost a bit nerdy, and I gladly pass on what I have learned to anyone who want's to know. One thing one can say is allmost all you have learned about combustion engines can be thrown out when it comes to Nitro engines, the mechanical side is similar but the rest is a totally different ball game. One thing about the powerful exhaust gases from a Nitro engine is that when a cylinder or two goes out (not igniting) on one side of the engine the car starts to drift towards that side as the exhaust gases from the four cylinders on the other side are so powerful that they push the car over and it often gets out of "the groove" and the driver has to lift. From my screen name and avatar you might have guessed who my favourite driver is and I have met the man himself 5-6 times both at his Yorba Linda shop, in Las Vegas at SEMA and at the Las Vegas and Pomona tracks, last time I met him was at the Yorba Linda shop and he came in to the Race Station store and talked with us for a while, wrote some autographs and posed for some photos, so he's a neat guy.
  7. Ouch, that was a lot to try to explain. The ignition in a Nitro Top Fuel and Funny Car engine are done by dual MSD Pro Mag magnetos wich delivers 44 amperes current each to the 16 spark plugs and the timing advance is about 58-65 degrees before Top Dead Center as the Nitromethane burns slow, it still burns in the exhaust pipes thus the visible flames and very loud sound, the 16 spark plugs are burned up and melted by aproximately half track and the engine "diesels" down the track from the compression heat and the glowing red hot exhaust valves, the only way to stop the engine is to shut off the fuel delivery. The fuel mixture is pumped by dual mechanical fuel pumps that can fill up a bathtub in a few seconds, the capacity of the pumps is around 100 US gallons per minute each, it's a constant flow fuel system with a system pressure around 500 psi where you regulate how much fuel the engine will get and burn (lean or rich) with how much fuel you return to the tank, and it's quite complex with a lot of valves, return lines and stuff, the fuel goes through a barrel valve and distribution blocks and is injected at three places in the engine through 42 or more nozzles, some of the fuel is injected under the injector hat on top of the supercharger and that fuel is mainly to cool and lubricate the supercharger, some of the fuel is injected under the supercharger in the intake manifold runners and the main part of the fuel delivered to the engine is injected through 2 nozzles in each of the intake ports in the heads right behind the intake valves and goes directly in to the cylinders. As the engine has no water jackets it's also cooled by the large amount of fuel and they use about 15-20 US gallons of the Nitromethane/Methanol fuel mixture for one run. Nitromethane carries two oxygen atoms in the molecule (CH3NO2) so a Nitro engine can burn about 7.6 times more fuel than a gasoline engine can because you get oxygen in with the fuel itself, so they push in as much fuel as it's possible to do without locking the cylinders hydraulicly, that will say very much but not as much so it fills up the whole cylinder, because you can compress gases but not liquids so you need to leave some room otherwise the heads will fly off, the engine block will split in half, kicking out the conecting rods through the block sides or the crank will exit through the oil pan...I have seen all of that happening. A supercharged Nitro engine is calculated to produce 10 000-11 000 hp or more and over 7 500 ft-lbs of torque, the manifold pressure under the supercharger is around 55-75 psi and it takes about 800-1 000 hp just to drive the 14-71 supercharger at full pressure. The cylinder pressure is about 1 160-1 450 psi and the exhaust gases from the engine produces 900-1 100 lbs of downforce through the individual zoomie headers at full throttle. A fun thing is the the crank shaft in a Nitro engine at 8 000 rpm turns just around 500 revolutions from start to finish and a Top Fuel Dragster does 0-60 mph in 0.7-0.8 seconds and they go well over 60 mph at the first timing point at 60 feet. You can read more here. https://en.wikipedia.org/wiki/Top_Fuel Here is a video on how much fuel a Nitro engine uses per cylinder, first at idle and then full throttle.
  8. Usually when they chop a 32 5W Coupe the align the center post and massage the front and rear to fit. A friend of mine did it that way and I saw Gene Winfield do it in a car TV show just the other day.
  9. It looks like the old IMC/Lindberg trailer issued by AMT recently.
  10. Do you really need locating pins? I usually cut them off so I can adjust until all edges meet perfectly.
  11. Many thanks and keep up the good work, it's really appreciated. 👍 Regarding the like button, I don't care for it as I don't think it's necessary and I prefer and appreciate a more personal written comment before a number of likes any day...well that's me.
  12. Don't worry about it Phil. The kits has been out now and again for over 40 years and I just wonder why no one on the aftermarket has done a correct K100 Aerodyne dash before as most of us know the dash in both the AMT and Revell kits are wrong. I mean there are right hand drive conversions available for most kits but the incorrect dash has been overseen, so a correct dash for the K100 Aerodyne kits is not available in left hand nor right hand drive.
  13. I think it looks nice even tho' it's not an exact replica due to the hood length. Yes the Revell AG kit has the 74 inch long hood but the AMT kit wich has the shorter 63 inch hood wouldn't have been right either as it has the older pre 1972 cab with wrong door handles and larger ventilation windows, the bumper and battery box would also be wrong. The Revell snap W900 Aerodyne has the 1972 forward cab, shorter 63 inch hood, right bumper and battery boxes but wrong sleeper wich is also molded with the cab. So the thing you could have done was to use the shorter hood from either the AMT or Revell Snap kit or cut down the Revell AG hood to the right length, the difference is 11 inches at the centerline of the hood so you have to remove 11 scale inches, and move the cab slightly forward on the chassis to meet up with the hood...pretty much the same thing you have to do to do the Movin' On truck.
  14. I'm also qurious why anyone hasn't done a correct dash for the K100 Aerodyne kits, the K100 Aerodyne cab itself came 1976 with the Bicentennial Edition and AMT kit of the K100 Aerodyne have been on the market since the late 70's and the Revell Germany K100 Aerodyne kit since the early 80's and neither kit has a correct dash, I mean, it has been over 40 years and still nothing. With today's technology it wouldn't be that hard to 3D print a master an cast them up in resin or something...if I could operate a CAD program myself it would for sure have been done allready together with some other parts I would like to have done.
  15. Tyrone Malone's transporter for the Bandag Bandit race truck, the Hideout Truck had a white chassis, you don't see much of it under the bed but it's for sure white.
  16. Yes it has it's drawbacks but they are at least not spread all over the countryside high up like the wind turbines are, you see these ugly wind mills everywhere and from a long distance...not a view I like to see. Hydro electric plants are fine, at least the ones allready built, but I don't want them to destroy any more rapids and rivers to build more of them. I don't agree with the hydrogen being a widespread hazard because it isn't if you use it right, and there are lots of vehicles using it allready. We have some hydrogen fuel cell vehicles here used by the state operated road maintenence company and they make their own hydrogen on site in a container size plant and their vehicles run every day the whole day and only needs to fill up every 450-500 km's wich takes only a few minutes and they are ready to run again. One thing with hydrogen people haven't thought about is that a hydrogen plant can convert salt sea water to fresh drinking water, you make hydrogen with salt sea water, combine the hydrogen with the oxygen from the air in a fuel cell and you get fresh water as a biproduct from the process as the exhaust is water vapor and you just have to condence it.
  17. The wind and solar power pants are so inefficiant and unreliable to be economiclally defensibile, has short lifespan (about 20-25 years before the wind turbines have to be replaced with all new ones) and will never make up for the CO2 emmissions from the building of them and the infrastructure for them under their lifetime...and they "pollute" the environment because they are ugly and bad for the insect and bird life. To replace nuclear power plants with wind turbines you need hundreds of them just to replace one reactor, and most nuclear power plants have several reactors.
  18. Yes you are right, we have to make changes to what we drive, but the infrastructure for charging battery powered electric cars are more extensive, expensive and takes a lot more time than for most other alternatives. More power plants has to be built as the need for more electricity increaces, upgrades most of the power grids and build new ones are needed as there aren't enough capacity today, building charge stations everywhere to be able to charge the cars, and things like that. And where does the electricity you charge your car with come from, if it's coal, oil or any other fossil burning power plants where are the environmental gains then. Why wount internal combustion engine road going vehicles be manufactured if they can be running on fossil free bio fuel with very little or no CO2 emmissions, that type of fuels are available today and can be used but these cars are taxed to death like everything else except battery powered electric cars, so there are a lot of obstacles put up by politicians you have to overcome to be able to make progress.
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