Jump to content
Model Cars Magazine Forum

olsbooks

Members
  • Posts

    987
  • Joined

  • Last visited

Everything posted by olsbooks

  1. Now granted and inline 8 cylinder NTC Cummins may never have existed so you certainly have all the artistic license that goes with it. But if you are concerned at all with theory of operation, the fresh air in and exhaust out needs a bit of tweaking. Again, THIS IS NOT MEANT AS NIT PICKING! Heck, I may put a hamster wheel in one of mine one day and savor saying "its mine and I like it regardless of what you think! So, with all these disclaimers, I commence rant. Turbo's are not placed in full series like you have due to theory of operation Far more common is to have them placed in parallel (totally isolated) or series parallel as on the NTC475 twin turbo or some new Tier 4 emission engines.. . Below is picture of the twin turbo NTC 475 (a horrible engine for reliability) and a CAT and how they did it with two stage. (series parallel) Note the routing and difference in turbo sizes. And granted it is a gasser, but this Buick 3.8V6 gives a good view of what I am talking about in terms of splitting the systems and (almost) true parallel though it does share the intake. (cant go as easy by old Detroits due to two stroke operation and the requirement of a blower and their tangled piping) I would suggest just modifying the intake and exhaust manifolds into 4 cylinders and have a dedicated intake and exhaust run for each set of 4 cylinders...if it were mine (and I fully understand it is NOT) and I certainly do not have the skill to fab the manifolds for such a beast. Sorry to go off. Spent too many years as a field engineer and instructor on these things. End rant and unsolicited school lesson. . Heck of a project John. I really like this one! Take care.
  2. That looks really good! Excellent detail putting the chunks stuck in the spreader and box! Well done!
  3. Yup Tom, they were 2 stroke. 53,71,92,149, etc series Detroits are all 2 strokes. Nice job William. Gotta start saving my pennies. Being a former GMC guy, once the gold nugget is done, somehow want to try a GMC General 12V and a Michigan Train in tow in 1/16. One of these days.....I can hear it screaming and leaking now.... Again, thanks for coming up with this stuff. Looks really good!
  4. I love it! Kudos for the creative genius!
  5. Most impressive! Very clever and nice looking with the magnets on the doors. How you got those tire/wheel "pockets" and rub strips to all line up so well is amazing.
  6. Never seen 'em as seperate pieces on anything 1/25 or 1/16. But I have not seem every kit out there. You can fab yourself using solid core wire and flatten the ends. Not perfect under the microscope but certainly better than a mold on. Detail Associates (model railroad supplier) offers some HO scale wire products and might be worth a look if absolute accuracy is required but wow do they have a price tag.... Good luck.
  7. That is scary! Big brother is watching. Never quite understood why these things were so heavy or expensive but I guess they were designed to take alot more abuse and banging up than a regular truck. Thanks for getting the the thread started on these things.
  8. Nice one my friend. Always like to see your projects. Gonna have to take the plunge into resin one of these days when I hit the big time. But where is your worker? A certain KW gold nugget is calling him and that pretty white overcoat he wears.
  9. I agree with Anthony. It is a very sharp and well done paint job but the dark glass really makes it unique. Simply gotta try that. Nice job!
  10. That thing is a beast isn't it! Look forward to watching.
  11. Most are in the 100-150 gallon per tank range supplied with most AMT kits. Good luck and have fun!
  12. I have not tried it myself but just about everyone, including the pros, that have messed with the AMT T600 has horror stories. AMT apparently hodge podged it from their w900 kit of the 70's. REALLY bad kit that takes a huge deal of work to get it right. Good luck and look forward to seeing your posts.
  13. I seem to recall (and certainly subject to correction) that the "big grill" originally was an extra cost option but later became standard. Chevy had the big grille for while but as pointed out, not for long since they were axed. All this fluff was originally part of what they called an "exterior decor package" that had stuff like the full "bright" grab rails, tinted glass, "bright" review mirrors, exterior visor, and "bright" full width bumper. In other words, get it all or get none of it. Always tickled me as rarely did they use the term "chrome". I suppose it left them wiggle room to change or substitute aluminum or stainless or the infamous GM "argent" silver paint. With GM you rarely had choices, good descriptions, or even mention of the vendor of small parts. Unlike KW or others where they might offer a dozen different types of say driving and fog lights calle dut by manufacturer like Perlux, Hella, KC, etc. with and without stone guards, different candlepowers, blah, blah, blah. With GM, it was just "Driving lamps, auxiliary, amber, bright housing, bumper mounted - Qty 2. Option code D52" or similar. Very simple, limited, generic.. And as a result, considerably cheaper in price. I look back it now and chuckle. Back then it drove me nuts with their ambiguity.. Thanks for the info about the General grille being smaller dimensionally. Nice to keep in mind for future projects.
  14. Looking REALLY good. Just a thought...not telling you what to do. If you want "newer" style glass, consider using the plastic from a 2 liter pop bottle and just a bit of heat from a candle or hair dryer. It may take a few tries but you can get the profile you want. Only after you have made the glass, then whack out the center post and vent window posts and fill/modify as you want. That stuff is thin enough that even if you dont get it "perfect", a little tape and white glue should hold it in place properly. I have made fighter plane pilot canopies out of it and been real pleased with it. It aint perfect under the magnifying glass but certainly passes the "two foot" rule. Just be willing to try half a dozen (or more) times and experiment with molding/shaping it before whacking out any "white" plastic. Good luck. Very nice!
  15. The so called redesign of the bigger grille was purely cosmetic and cost savings just as an FYI. The upper 6" or so was just a single plastic cover plate on a hinge to LOOK like the grille. It was not even hallow and the basic metal stamping behind the grille was unchanged. Therefore airflow to the radiator remained unchanged. It actually cheapened the price going from a metal "slat" type grille with stamped, hinged,latched access doors along with metal individual letters that had to be aligned/drilled and screwed down to a single plastic hinged affair. HUGE labor and materials savings. I have never checked individual sub assembly part numbers but it likley utilized many of the same components or portions/tooling thereof as the Brigadier and General grille assemblies. It was also a great way to compensate for fatiguing tooling...much like the change to "plastic" doors and paddle type latch catches on the door frame. It (bigger grille) surely looked much better (in my opinion). Not always "bad" changes...sometimes cosemetic improvements and in other benefits resulted (doors fitting better/staying shut and lighter weight). Things are not always what they seem....especially when dealing with GM back then. Ah the good old days????
  16. Never seen one of these before. Very nice!
  17. Nice job! Beautiful color! Did you make the little running lights above the headlights? They look really good, a must on an older W900 that were not in my kit. To Jim3, the tires are "rubber" in this kit. Pretty good ones actually and quite "squishy". They just dont have much tread depth so if you sand them down to kill the gloss, be careful. I need to put some belts showing thru on my gold nugget drive wheels...LOL. Probably less than DOT requirements all around. Speaking of which.....anyone ever try making recaps?
  18. Repeat of Big Bad's and all the other comments! Gotta be one of my favorites since I used to sell GMC's back then.
  19. BAD DOG! But you pulled off something really nice here. Like the pallet!
  20. Personally I use the really cheap diluted Tempera paints and chalk/powders for light to moderate stuff BUT eeons ago used to help on dirt track cars know you are dealing with serious buildup. The military boys got some amazing stuff on tanks and what not but if you are going for the really caked with 3-6 inches of red clay, why not actually try the real thing? Dilute it a bit to get a base started, let it dry, and then build up with progressively thicker? The other (and very messy) would be perhaps before you put the tires and wheels on, take rechargable drill (slow speeds) with a small wire brush on it. Dip the brush in some of the "slop" and have it sling up like the real thing. A less messy way might be to dip an old toothbrush in the slop and "spray" it on using your thumb. One thing about it, it aint gonna come off once it dries! Dont know if any of these will work or not but you really got me thinking. Poke thru the sight and you will get some great ideas on a tank. Quite a few have pulled off some incredible works using PVC pipe. REAL curious to see what others have to say and see what you come up with. Keep us posted! Really neat project!..well...I guess not
×
×
  • Create New...