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  1. optimum

    EGR and how it adds to fuel economy???

    If you open the intake valve during the exhuast stroke you will contaminate the mixture enough to lower NOX. I dont know how this would work on throttled engines, but it seems to work very well in CI engines.
  2. optimum

    How many miles on synthetic motor oil?

    I run 10K miles in both my escorts, Mobil 1 and quality filters (Baldwin or Donaldson) Both cars rarely short tripped, so always at temp. I have never done SOS on oil, because frankly I don’t care. If they die, I fix or replace. My rule of thumb is dirty oil is always better than no oil. I...
  3. optimum

    recommend a torque engine for towing and high MPG

    EGTS=Exhaust Gas Temperature's A turbocharged gasoline engine towing will be in boost for long periods of time, in the mountains which will create lots of exhaust temp. Propane is a nice option but you would need dual fuel unless you know where all the propane refill stations are. A big diesel...
  4. optimum

    recommend a torque engine for towing and high MPG

    What do you mean by "as Diesel makes me physically ill to be around, unfortunately"?? You should not smell it in your cab. Go to full service stations and avoid standing behind it. You are asking for something tha can not be done with gasoline. You want to turbo charge a 300 six? Can we say...
  5. optimum

    EGT measurement for 150 HP turbo-diesel

    ISSPRO, Autometer, VDO, Stewart Warner
  6. optimum

    Uprating turbo-diesel engine power

    It sounds like you have way to much gear for a turbo engine. I know the cat turbo's run a very steep gear to keep the engine loaded. I would not be afaid to crank up the fuel and boost in a marine engine, they are steady load applications unlike a truck which is not. Marine engines live in a...
  7. optimum

    Possible to Duplicate Natural Body Functions

    Hello, Would it be possible to duplicate the lower intestine, the bacteria, and the gases formed in the process. I would be interested if this could be done on a large enough scale so as to capture the gas formed. Tim
  8. optimum

    brake rotor material

    Try http://www.colemanracing.com/catalog/advanced_search_result.php?keywords=disc+brake+rotor&search_in_description=1
  9. optimum

    Hoooking a vacuum pump to a crankcase?

    You usually use adjustable air bleeds mounted in the valve cover to control the level of vacuum. Most drag engines have used them successfully for years with very narrow/light ring packs. Tim
  10. optimum

    Fuel Injection, What pump to use?

    http://www.msdignition.com/fuel_6.htm http://www.weldonracing.com/d2015.html http://www.weldonracing.com/d2025a.html
  11. optimum

    Correct Plating For A New Engine Design

    I do know that much about coatings but Goodridge offers their aluminum hose ends in electroless nickel which are subject to wrenching on. It holds up in this application as well or better than traditional red & blue anodize. Maybe they have a different process...
  12. optimum

    42V automotive system. What's the latest?

    I thought exide and johnson had small 36 volters that would package a lot better. What is this that you posted? Tim
  13. optimum

    Automoitve frame jig points

    Ford has most critical dimensions in their factory manuals in the body section. Pre-delivery manuals may also contain these locating holes because some double as tie downs used during shipping. Tim
  14. optimum

    Camshaft Design- New

    What ever happened to ceramics in the use of valves and seats? Ceramic would be good hi heat applications.
  15. optimum

    FORD ECC'S , APLICATIONS

    Again I dont know what country you are in but Napa used to publish very informative book on efi that listed all makes with pinouts and sensor specs.
  16. optimum

    FORD ECC'S , APLICATIONS

    Hi Jon, what country are you in? I the info I provided was right out of the book from ford. There were not to many 4.0's sfi, but i dont know why you couldnt make the 3.0 sfi computers work. Tim
  17. optimum

    CO2 MIG WELDING

    Spray arc with a tri-gas Argon-Co2-O2 will provide very good fusion and penetration and pass UT. Very fast Process
  18. optimum

    FORD ECC'S , APLICATIONS

    The eec's label on the units themselves usually say SFI on them. 92-up 3.0 V6 Taurus, 89-up SHO, 3.8L V6 1988-up, 90-up 1.9 Escort, 93-up Calif. Explorer 4.0L(49 States most likely added in 94-up) 92-up Aerostar/Ranger 3.0L 1988-up Ford Car 5.0L Tim
  19. optimum

    FORD ECC'S , APLICATIONS

    Am I talking about the same thing? Ford injects the fuel right as the intake valve opens, SEFI. Ford had used this method on eec4's I was familiar with. That was why the wiring harness had separate conn's for each injector. Otherwise they would have tied them in banks or batches. Maybe we are...
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