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  1. Toddr8541

    Welding to Concrete Filled Hollow Steel Sections

    Steel roof trusses are welded to steel embeds that are placed in concrete on top of the bond beam of CMU walls. I have seen them done the day after the concrete was in place without any issues. This situation maybe a little different due to the concrete being encapluated in the steel tube. I...
  2. Toddr8541

    MPG loss with 10% ethanol---

    Ethanol has less BTU's per gallon. Therefore to maintain the same power output the engine requires for fuel.
  3. Toddr8541

    AWD Pushrod front suspension design

    Wolf you are partially correct. You can still have a pushrod system by placing the attachment on top of the A-Arm. You could do it several ways but the a-arm would incorporate both the a-arm function and bell crank function in one part. Early F1 cars did this in the 60's or so.
  4. Toddr8541

    diesel vs gas

    I am a engineer. I am not looking for a detailed report on the differences with temp and pressure graphs. All I am asking for, is if someone has experience with both types of engines to say engines of comperable size and power rating. ie: "Diesel cylinder pressures are about 10 to 15% higher...
  5. Toddr8541

    plywood on exterior walls

    What is the benefit of installing the exterior plywood vertically as opposed to a horzintal in a running pattern (like brick or block) other than speed of installation?
  6. Toddr8541

    diesel vs gas

    has anyone done a comparison or know what the differences in cylinder press and cylinder temps on a diesel engine vs SI engine of comparable size?
  7. Toddr8541

    call me crazy

    hahaha trust me she knowsI need couseling hahaha. She just shakes her head everytime I come up with an idea and then tells me how engineers are crazy. She knows everytime I am quiet I am thinking about something and tells me I think too much haha.
  8. Toddr8541

    call me crazy

    haha thats what my fiance says haha. I know it's doable and I will hire a structural engineer but I was wondering what everyone here thought. I've never built or reviewed plans of one so I don't know how it differs from a parking garage other than on a smaller scale. What is a stepped garage?
  9. Toddr8541

    call me crazy

    Guys and Gals I have moved to a area that is very sloped. Not many flat land options. I am considering building a two story garage. Both stories capable of storing cars. Each floor would be 1200 Sqft. with concrete floors. The first floor would be built into the land with the garage doors...
  10. Toddr8541

    Machine shop responsibility to comply with "Industry Standard".

    Have any of you also seen the note " must meet quality workmenship standards" I saw that on a print at a company i worked at and asked the engineer what he meant by that. His response "make sure that it's done correctly even if i missed something" I told him to remove it from the print and...
  11. Toddr8541

    Polyeurathane foam

    yes but we are having problems with them. They are a very large company and not really offering any solutions. In the past we have relied heavily on our suppliers as we don't have any internal experts but we changed suppliers because the previous supplier is out of business. So we are looking...
  12. Toddr8541

    Polyeurathane foam

    I need to speak with someone regarding polyeurathane foam. We are having a high rate of tears in our cushions and need some assistance. If anyone knows someone on here or otherwise please let me know. Thanks Todd
  13. Toddr8541

    700hp 300ci pushrod V8 race engines how do they do it?

    Does anyone have any more details on the blocks and heads and rules for these cars. I know the fine details will be left out for obvious reasons but maybe some generalities. For example do what range of stroke or bore do they use.
  14. Toddr8541

    tail light lens material

    I don't know if this is the right area for this question. I want to make some new tail light lens and was wondering what material it should be made out of. i plan on doing a homemade vacuum mold machine to mold the lens. Can anyone tell me the material used for todays tail lights lens...
  15. Toddr8541

    Inboard suspension and shock hysteresis

    Jim I agree with the dirt bike analogy but in that case the shocks work well because the closer the shock is to the pivot point the smaller the shock and still get adequate suspension travel. The shocks are also valved for those conditions. However, lack of adjustability can be offset by...
  16. Toddr8541

    Inboard suspension and shock hysteresis

    Have you thought about placement of the shock in relation to the wheel itself. The closer to the wheel the more accurate the dampening for the motion of the tire and wheel.
  17. Toddr8541

    Scrub, KPI, spindle balance

    I doubt you will get that type of answer because there are too many factors involved to determne a good KPI/ Scrub. Every different car will be based on tire, roll rates type of usage, etc. A good starting point is Zero scrub and adjust your KPI to work with the other attributes of the...
  18. Toddr8541

    Antisquat force vs spring K rate force

    I've never looked at 200 % anti-squat as I've had a car that would withstand that kind of anti-squat. The reason is that it would hit the tires too hard and didn't have enough shock adjustment to reduce the rate of extension. There are several factors involved in determining the amount of...
  19. Toddr8541

    Antisquat force vs spring K rate force

    didnt mean to state "lateral acceleration" just "acceleration" sorry for the confusion.
  20. Toddr8541

    Scrub, KPI, spindle balance

    If you are designing and building a new upright I would build the spindle length to maintain current track width (wheel mounting distance from each other or center of car) unless there is a interference problem. That way you dont have to worry about making all of those changes. It's alot...

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