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MLM

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Posts posted by MLM


  1. I have done exactly as pictured using a CMM on my m42 cams to compare inlet and exhaust. I had to ask the operator nicely as it has to be done after-hours and takes a fair bit of set up. This generates a point cloud which is imported to cad. Can I ask what is your intent? Cam shops may have better processes for this.

    Edit - Are you asking for someone to create a cam profile from scratch FOR a cam shaft? or Create a cam profile FROM a camshaft? Your wording is for yet the picture is from...


  2. Replaced the clutch slave cylinder on my e36. Had to improvise a pressure bleeder from a coke bottle which worked a charm.

    Tight arse mod of the month is a adjustable clutch pedal stop, or an washing machine foot.....

    post-3850-0-57191400-1457596865.jpg

    Fits up perfectly (OEM on the right)

    not that a proper one costs much https://www.turnermotorsport.com/p-3807-uuc-clutch-stop/ but you cant beat near free mods for almost zero effort.

    • Like 4

  3. Soul for me is a descriptor of of character. Partially inherent in the design but also earnt over time. Does the old stuff have more soul, yes because it have been part of our psyche for a longer period of time, we learn to love the traits of a design good or bad. The new stuff hasn't had this effect yet so is perceived as less soulful even if the designs are equally good. increased cadence of model release makes it even harder to judge.

    Its also the cadence of model release where bmw could loose its way where designs only need to cover a shorter period of time. Design errors are tolerated because of this bringing with it short bursts of bad product. A "fixed in the next release" mentality combined with a arrogance of "you will have to buy the next model" marketing bs encouraging shorter design service life. The new car buyer will not notice, the second hand owner will damaging the brand name in that segment. I see this in many forms of product development. Is bmw doing this, have to wait till I buy my next "new" car...

    • Like 1

  4. I like those speed bumps! In my street we have speed bumps however they do not always work. On occasion they are deliberately used as launch ramps or as a leading car slows for the bump the following car overtakes on the ramp, this usually incites a drag race to the next bump on a blind crest...our street is full of young children.


  5. FEA is going to be a complex and difficult thing to do right. I suspect the cert guy has suggested it only because he is aware of it as a tool for stress analysis and probably doesn't understand the complexity of doing it right. Most mortals don't have the $$ or computing power to offer a real answer

    For a FEA to be done properly you will need to know the material thickness, type/grade, local existing connection strength ie spot welds? bonded? again what strength, single skin mullti skin let alone the accurate CAD to support this. You will need to know string rate for loading, assuming no solid loading is applied ie bumpstops and design this all to avoid fatigue etc. This will give you an indication of what's required. unless you did further testing to validate any assumptions. This work is long and complex to do right. For example your new design may be 4x stronger, but stronger than what? is the original strength known? Is the new design strong enough? Sorry im off on a tangent here but deal with this daily at work.

    One would hope the cert guy can be shown existing examples of structures which work in this configuration, and apply engineering judgement. Build it blatantly strong along side some known functioning examples will prove every bit as much and more than a FEA exercise.

    Hopefully some members can share their examples of what works.


  6. My review of redline rad from another thread. On a 4cyl so had to add a 328 expansion tank with a bracket. Possible alternative.

    The rad is from redline performance, Im happy with the product for the price. The only down point is the drain tap is poor quality with a press interference fit finger grip to release the the water. This has broken off. I think it was slightly damaged upon receiving it and the brass fitting it brittle. At some point i will braise on the tap fitting again and would suggest this as a first step if starting again with it.
    Dimensionally the product is good and fitted well (had to mod a few brackets but thats because its for a 6cyl not a 4. In conclusion, for the dollars it was about right and would buy another if need be.

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