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  1. TCAir

    Restriction calculation on elbows in intake system

    Pounded away and got it guys thanks Engineering has always been my love, but it ended up being my second career...
  2. TCAir

    Restriction calculation on elbows in intake system

    This is for a turbo charged diesel 4 stroke engine in a marine application. This is from the outside of the engine room to the turbo. The calculations I am coming up with using a k values for the bends is obnoxiously high. I want to figure out the psi increase through the 3 different styles...
  3. TCAir

    Restriction calculation on elbows in intake system

    Man my schooling has failed me. I am trying to build a spread sheet that encompass the about of restriction a 45 and 90 degree elbow will place in an intake system. I have the engine intake air velocity and all the variable but for the life of me I can not get a number that makes sense. The...
  4. TCAir

    2 strokes

    Dgallup: The legislature failed to get the 2 stroke banned, but you are right on the emiissions issue. ETEC has received the highest rating from the EPA for an outboard engine. Ultra-Low Emissions status. The only thing Ficht and ETEC have is common is computer controlled direct injection...
  5. TCAir

    2 strokes

    The Evinrude ETEC is the most modern 2 stroke set-up. They are not forced inducted but achieve better fuel economy and emission standards than their 4 stroke counter parts. These engines are not FICHT engines but a new design (obviously with lessons learned from FICHT) The big issue now is...
  6. TCAir

    Educated Opinions on Climate change - a denouement or a hoax?

    "rb1957 (Aerospace) 16 Dec 09 12:41 yeah, the trouble with the internet ... once it's there, it's there for good " ...but if Al Gore invented the internet, can't he just delete all this so he can continue to profit from it? Engineering has always been my love, but it ended up being my...
  7. TCAir

    What does PE-mechanical really do?

    All have mentioned great answers. I will add one more. If doing government work, it is highly favored. Engineering has always been my love, but it ended up being my second career...
  8. TCAir

    Fresh Water Corrosion

    Really rough guess here but are you loosing electrical current into the boat? Maybe a bad bilge pump wire. I know that can do it quick, just something to check. Engineering has always been my love, but it ended up being my second career...
  9. TCAir

    Jeep Hurricane Steering

    It could be an over running clutch system, we use similar systems in some products at work. With the drop at the wheel I would guess this is what it is. Engineering has always been my love, but it ended up being my second career...
  10. TCAir

    Should I start studying engineering in my late 20s?

    I was in the same boat. Wife and kid on the way at 28. Graduated when I was 31. It actually helped when I interviewed!!! A few places looked at it as a negative and you could see it when they were looking at me, but most looked at it as a positive. You have the ability to work. Most kids...
  11. TCAir

    Creating steering that feels alive

    PS. cibachrome's response is very accurate. The only point of contention is the OEM's knowledge. Every single point was a problem to overcome in the project. We did an SUV vs a sports car. I think it would qualify as a Buick. Engineering has always been my love, but it ended up being my...
  12. TCAir

    Creating steering that feels alive

    GregLocock, I didn't realize that I insulted anyone in my post. I just tried to give a quick synopsis and a point of contact for information without writing a diatribe. I tend not to give long explanations without data. Hence the "I don't have my notes." The only facts given was the OEMs...
  13. TCAir

    Death Wobble???

    GregLocock is right, you have changed the architecture completely. If you did a block-under-spring style lift you are completely out of luck. That style of Jeep does not do well over 1.5" without complete suspension re-work. Simplest solution would be to drop it back to 1.5" over factory and...
  14. TCAir

    Creating steering that feels alive

    Contact Jesse Black Ph.D. student at Clemson University. I was on a research project with him and we did all of this. I would give more info but I do not have my notes available. Truth is the OEMs know very little about "feel." We did synthesize it accurately in a drive sim we built. There...
  15. TCAir

    Cast Alum Fatigue Crack , But No Fractographic Evidence

    Was this on a Honda Dual Sport? I know there was a recall a few years ago due to a poor batch of forks. Not a very engineering answer but the point is that the issue was known. Engineering has always been my love, but it ended up being my second career...
  16. TCAir

    Am I cut out for engineering?

    DaveZR2, It is possible that you went into the wrong field. There are fields you are good at and fields you love, which if I am reading your post correctly, engineering may be first and not the last. You are not alone. I went back at 29 to finish my engineering degree. I knew that is what I...
  17. TCAir

    F.E. exam

    I agree with everyone here. I graduated Clemson in the fall and we have a 92% pass rate on the FE. It doesn't hurt that the NCEES offices are down the street and are comprised of a number of Clemson Profs. The three best pieces of advice I can give you are: 1. Know the reference book and...
  18. TCAir

    Carbon Fiber vs Steel 4130

    Thanks, that is exactly what we were looking for.
  19. TCAir

    Carbon Fiber vs Steel 4130

    I am looking for some information on the strength of certain carbon fiber weaves versus that of 4130 steel. I need enough information to provide reasonable conclusions to advantages of the composite versus traditional materials. Anybody have any recomendations?
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