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Tony D

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Posts posted by Tony D

  1. Swarf has been my bane the past week in Japan. We had a sudden rotor failure, and when disassembling the machine at site didn't really see anything. But back at the shop, found an aluminum chip in an injection nozzle feeding the side of the machine that failed. This is VERY odd as we have 100% wetted parts of stainless steel in the oil system, and the gearbox is an obvious ferrous casting. So the question is 'WTF is this aluminum chip doing in there, and where did it come from?'

     

    I don't think this one had caused preblems yet. But in another incidence back in May there was a serious swarf infarction that took out the high speed bearings on another machine with a similar non-ferrous swarf chunk in the nozzle. But there was ferrous stuff in the bearings like a gallery wasn't flushed properly at assembly or something. I can live with that one, we can see where it came from on THAT machine.

     

    This one.... WTF? Where did the mystery swarf come from? It almost appears to contradict the disproval of spontaneous generation!

     

    On the Aeromotive Regs, JeffP had one all full of machining chips that wouldn't let the regulator seat so it would bleed down and was hard to adjust. Take it apart and clean it all up...and notice there are cuts in the diaphragm... Replace and since then it's worked flawlessly. But that first attempt at fuel regulation was a dismal abyss of failure.

     

    A vendor who saw the install commented similar items had occurred to his customers. Maybe they had a bad batch and some are on the shelf? I'd disassemble and check like I do with Harbor Freight stuff...just to give me peace of mind. They never fail 'rich safe' damnit!

  2. Actually having the raw pulls would satiate my curiosity more than answer some 'documentation' claim. If Knepp says it was, that's good enough for me. The pull here on the GTP car is interesting for the boost response, it reveals some stuff I suspected but couldn't be absolutely sure about.

     

    I think the E-motive pulls would be equally enlightening! Even if they weren't 'all out' top power pulls...

  3. I have a bag and a backpack when I leave, but usually THREE BIG bags on the way home. Put the back seat down and it all fits nicely. And it tows the coupe around the yard with aplomb! They do tow trailers nicer than the coupes do... From my experience that is...

     

    It was a 'demand filler' to be sure. They would loose buyers when they had a kid. Face it, younger guys bought Z's because they didn't NEED a back seat. I bought it so I didn't have to give anybody a ride "Sorry man, 2 seater, I can only take her..."

     

    I had a Microbus if I wanted to move big things. And then, I took the back seats out so I wouldn't have to haul around too many drunks at the end of the night. Working the hose when I got home got tedious. Friendship can only go so far, and puke on the carpet kills most of that.

  4. Yeah, that is about right. I found with Europe that booking the freight from the USA is considerably cheaper than booking on that end. Same price but one is dollars and one is Euros!

     

    And you can fit more than three in there, with a Hi-Cube you can fit 6 S30's, a front clip, a bicycle, a 50,000 btu BBQ unassembled in it's box, and more FRP and parts than you can even start to imagine! LOL

     

    With a couple of reliable friends, the economics of shipping cars becomes nice. Four guys sharing a container (easy packing for four) makes your individual shipping costs only about $1200 a car, including almost an unlimited supply of space for parts. If you can get laydown service for the container at both ends (where it physically lays on the ground and not up on the wheels) you're golden!

  5. Actually, last evening I was sitting in my room with another engineer who works in our R&D section, and was reading your original post outlound and I basically 'channelled' him on the first post.

     

    To be honest when we went to Wal-Mart he actually (and this is the truth) picked up a package of panty shields and said something about giving them to 'that whining kid on that internet post you were reading me earlier tonight'!

     

    The LOL at the concentration camp guards comment was me. I found that funny as hell. There was a point where I had drawn a cartoon of someone with an "Arbiet Macht Frei" sign in the background as an overlooked charge digillently applied himself in his research time after class...the caption being 'why does this guy study so hard? Is Prof X really that bad?'

     

    Remember, I had a high school shop teacher that THREW things at you if you asked a stupid question. And his contention was that there IS a such thing as a stupid question: the one you don't put enough thought into YOURSELF before you ask!

     

    I have to say, even though there were trials...afterwards I have not failed at any task assigned to me. Either I'm classically selecting easy assignments and taskings, or I was well prepared by classes and practical training. I can not say 'school was easy' after high school. It did take all my attention.

     

    Actually that is really what is going on, some people don't know how to focus their attention. Fear is a great motivator. Some of this isn't applicable later on, but the concept of focus and application of all energies in a singular direction IS something that will pay off no matter what you do.

     

    And the business knocks were mainly due to many of the guys I knew who 'went to the dark side'---a good guy I know at a major competitor who was working towards his BSMET, and though he was hauling a 3.8+ GPA, just changed to business management in his 3rd year. Why? Because in his exact words: "I looked at what I was going to make, and it didn't make any sense. I'm busting my balls and won't get $80K. If get a business degree with what I already have (AA in MET, along with 10 years in the engineering field) and I can start at $100K+ as a manager."

     

    At least he was honest. And he was right. If he'd followed the engineering goal he would be overworked in a cubie doing aerodynamic profiling or something on turbine blades. Instead he's a manager making six figures and he's done with school witohut nightmares. The change was 'like night and day, it was a breeze!'

     

    I worked with too many guys who had no engineering background and were souless MBA's with nothing more on their mind than their next 90 day performance bonus made on the backs of people like me who were in the field billing hours and providing something to the customer of value. If that happens, no trickery is needed to provide value for shareholders, the profits will come, and the dividends will follow.

     

    I watched a whiz-kid (my age, actually) throw away $12 million annually in service work to try and make a 'no touch' parts business. A pure pass-through mark it up and profit venture. The business technically 'grew'... and the service work was given away, another local business started up with 'overhead he eliminated' to provide services to the customers he didn't care about. And the company, while looking great on paper, failed when the house of cards fell. But he got his bonuses. He got a 'Best place to work in XXXX XXXXXXXX' gold star on his resume, while our engineering displaced former service manager and salesment and technicians.... they got a $12,000,000 GRANT for small business development from the state of XXXXXXXX. They used that to build one nice damn building/shop/inventory stockroom. As opposed to the old Tobacco Drying Barn we were working out of... This guy actually told Katrina Victims who bought used equipment from our company 'you bought used equipment, what do you expect?' Answer: I expect the MFer to at least RUN! Talk about destroy a company reputation. All about the money.

     

    And that brings me full circle on my digression to the money. You already have numbers in mind. Expectations. Most younger guys are all about the money. There are more important things. Be open to the fact that poor is not necessarily a bad thing if you are happy doing what you do.

  6. CONGRATS! Amazing that no ducting to / sealing of the radiator to the core support appears to have been done...no aero mods at all!

     

    That is the intent of the class! It has to be STOCK as it came from the factory. The limited exceptions are things that could make a hazard if they fly off at speed: Wiper Arms, Mirrors...but that's about it. No taping of seams, no ducting of radiators (unless stock...like the S130 Euro Duct I have...) This is about as stock a Stock Z as you can get!

     

    This feat is VERY impressive with the CD and Drag on that known and verified. DAMN impressive. Understand we only had about 280HP when we went near that same speed with the G-Nose, Light Covers, and Full Belly Pan! 100HP got him to where we were with aerodynamics. If we had used his engine our speeds would have been 'long track' eligible. BTW, our 'best speed' was a measured mile around 176mph, the two-way average was 173.325.

  7. "manoeuvre noun ( MOVEMENT ) UK (US maneuver) /məˈnuË.vÉ™r//-vÉš/ n

    [C] a movement or set of movements needing skill and care

    Reversing round a corner is one of the manoeuvres you are required to perform in a driving test."

  8. Yes, I may be an A$$, or an A-Hole, but I'm also one with four RHD vehicles that I have been driving in the USA continually since 1991.

     

    How many to you own? How many have you driven?

     

    "Yelling" is in fact the fact that were you in front of me I'd be RAISING my voice to punctuate the statement. You want to call it yelling, I call it PUNCTUATION!

     

    You made a statement based on reasoning without EVER having driven the vehicle. It's like you're giving sex advice as a virgin. You read about it someplace, and heard this or that....and are passing it on.

     

    I, on the other hand, am the RHD *****. Full of years of experience and willing to share whatever I have. And what I have is probably 100,000 miles+ of driving in RHD vehicles here in the states and never having ANY of the problems you SUPPOSE you will have.

     

    And again---you said you can't see past the vehicle. If you can't, YOU ARE TOO CLOSE! This is a FACT. Overtaking is not done from DIRECTLY BEHIND another vehicle! LHD or RHD.

     

    You state you have a valid point IN YOUR OPINION, and refuse to change it. I have one based on 20 years of EXPERIENCE---which one is more valid? Are they EQUALLY valid? Which should be subject to revision?

     

    Should it be the one based on 'thought'?

     

    Or the one based on EXPERIENCE?

     

    I might say that someone who has done it MIGHT (maybe) have a little more valid contribution to make. But you have discounted that, thrown it out or ignored it entirely. But I'm the terrible oagre here.

     

    Be open to the possiblity you have 'thought wrong'... That you are standing on a TECHNICAL point that in PRACTICAL everyday application means not jack shite!

     

    This IS a possiblity that has not occured to you, I can see that. Hopefully you will see it as well.

     

    Making a statement that RHD vehicles are DANGEROUS in the USA is plain ignorant. FACTS and hundreds of thousands of miles driven by THOUSANDS of RHD vehicles in the USA tend to make that point for me without having to argue. If it was a big deal, I'm sure the media and the regulators would make you convert them when importing (like in Australia---who curiously now has relaxed that requirement...wonder why?)

     

    Keep an open mind towards those who have done, especially when you haven't!

     

    "You never try to put insight on the subject. Instead you force your ideas on people, at the same time just bashing the others ideas. "

     

    Force my ideas? Is that the same as 'advocating a stance'? I thought that was what debate was about? If someone posts a wrongheaded idea, is it not right to conter point? I have counterpointed from experience a position you advocated from 'thinking about it'... If you are offended at the possibility that 'you thought wrong' or perhaps my examples cause you to doubt your position...maybe that's what it's intended to do. Making a ridiculous statement like "RHD Vehicles make Passing Dangerous and are Harder to Drive"---you haven't given any factual statement to support it in ether case. Harder to drive is plain wrong on the face. Passing Dangerous? It is inherently dangerous, but no more so than in an LHD vehicle. I have no visibility problems in an RHD vehicle. S30, S31, S130---got them all, along with having a Sunny Pulsar GTi-R that I scooted around in for a couple weeks. Not a problem.

     

    So what do you do with that, this is not being contrarian. Is it because I'm some Super Uber-Driver? I would like to think NOT. I would like to think I have no 'special driving powers'---so what explains the FACT that I do not experience the dread or problems you apparently experience when simply THINKING about RHD vehicles? How do you reconcile that?

  9. You need to download the FSM and look at the wiring diagram. What happens to the gauge when you ground the yellow wire against the chassis---it should move one way all the way. When you remove it from ground it should go back the other way (whichever that was)...

     

    If it doesn't there's either a break in the line or no power to the front of the circuit (or a bad gauge)...

     

    You need to follow the circuit on the FSM wiring diagram, this one is not one I can do from memory!

  10. BTW a statement of opinion is opent to attack if it's showing evidence of ignorance or incomplete thought.

    That someone brings up a different point that may be just as valid.

     

    Driving a VW Microbus, overtaking is a 'lay back, plan ahead' and I will say this: it is FAR easier for me to overtake in an RHD Z, and the safety is much higher being able to pass in the onciming for mere seconds, than it EVER was in a VW trying to pass someone at even 45 in a 55 zone!

     

    Laying back and passing with clear visibility is not anything all that difficult, especially when you have the power to pass. People have grown used to the interstates and I doubt driver's ed today even teaches proper overtaking.

     

    The position to overtake is NOT behind the vehicle so close that you can't see around it (LHD or RHD). And a statement that it's dangerous is plain wrong (and opinions CAN be wrong!)

     

    Don't make the move from ignorance to stupidity. Being ill informed or basing things on incomplete knowledge or assumptions is one thing. Being presented with evidence and steadfastly adhering and not being willing to even entertain the thought your original supposition was incorrect is the definition of something other than plain forgivable ignorance. When informed of the situation and the variables, refusing to change the stance is stupidity.

     

    With probably more miles behind a RHD vehicle in the USA than I ever drove in Japan in 5 years...I think I've got a pretty good idea of what it's like to drive an RHD here (probably 5 to 10K miles a year since getting my RHD here in SoCal in 1991)

     

    I also had to drive BIG USA Built LHD trucks in Japan. As well as smaller US Sedans (LHD) in the world of RHD (Japan, U.K.)

     

    The statement 'its dangerous' is the same as guys saying 'it's harder to shift with the other hand'---either there is a mental block or challenge, or you've never really done it. It's no great shakes. It doesn't take Yogi Bear to do this, my bud Drew can drive his RHD Celica here and he's not Steven Hawking when it comes to brain activity. Probably more along the line of Tommy Chong's Character in 'Up in Smoke'...when stoned. If he can do it, it's NOT that hard.

  11. "Ok, senario, you are on a 2 lane road, behind a large truck, lets not even say a semi. The truck is traveling a lower rate of speed than you would like to. So, you would like to pass the truck. You cannot see the on comming traffic and you cannot get far enough over to see around the truck without putting you and your car in danger of on coming traffic. That is how it is dangerous. I don't see what is so damned hard to understand about that? Its dangerous to pass anyway, there is an increased risk passing on a two lane road in a right hand steer car. "

     

    YOu have never driven an RHD Drive Vehicle in America, have you? Nor an LHD Vehicle overseas. I have done both. It is neither dangerous or anything more than a driving adjustment that needs to be made. If you think 'laying back' doesn't give you room to pass, then you have spent FAR too much time driving on America's Interstates.

     

    Driving is a dead art here, nobody knows how to properly pass and it's evidenced by the TERRIBLE technique evinced in this ignorant rebuttal. Proper overtaking IS NOT DONE ON THE ASS OF THE VEHICLE YOU INTEND TO PASS! That's called TAILGATING and is EVEN MORE UNSAFE than any attmpted passing manouvre. If you are so close that you have to duck your car out into the oncoming lane to determine if it's 'clear' then you haven't been properly instructed on driving and overtaking and that's the end of the discussion in this thread.

     

    If you don't know how to drive, please don't blame the equipment.

    If you've never done it making an ASSumption leads to this kind of exchange.

     

    "It's Dangerous to Pass" is the ONLY thing you have said that has merit. LHD or RHD makes no difference. Two lane road or more, makes no difference. Your driving technique needs gross improvement!

  12. Maybe it's the black wire that should be ground?

     

    The 240 does have ground and power on the connector and the wires all tend to have the same color back there after the years take their toll.

     

    The circuit, btw is on the ground side, the 'power' wire is actually the ground side of the gauge movement. The sender regulates the ground for the gauge and that is how you register fuel level.

     

    One wire is directly grounded to the chassis though. That keeps the sender which technically floats on that rubber o-ring, connected securely to ground of the chassis. The wire harness is grounded back there as well so there should be a decent ground path. Cleaning that ground point back there on the chassis should brighten up your tail lights as well!

  13. "because it's there to catch vapors and condense them and return them to the tank."

     

    That's what 'phase separation' means John.

     

    I already conceded you win. Gas expansion is not an issue, and the incontravertable evidence that the 69Z's didn't have one proves beyond a shadow of a doubt that they are unrequired, and indeed were only put there to keep a relative employed who happened to make expansion tanks.

     

    15 7/8 is not 16 since pendantic adherence to form was what was being required and the forest was obscured by all the trees...

     

    All I know is filling up on a winter morning and driving to work to let diurnal variation do it's thing on a black car will have fuel coming overboard out the filler neck vent (JDM fuel system) and puking fuel on the ground. This is not due to thermal expansion, it's due to bacterial breeding displacing the fuel. Or something else. Expansion is not the mechanisim causing the fuel to rise. That does not happen.

  14. I used a 15mm to 10mm 90 degree nylon barbed adapter to make the transition easier. Also on the rearmost right tank vent (1/4") I made a "U" bend from stainless to make it fit better. All my vent lines are connected, but they are only 10mm or 5mm fuel line. I don't have to fill slowly, the 10mm seems to vent fine, you just need all the points connected. Maybe the combination of 10mm and 5mm off the back is what does it.

     

    On my 74, the back right vent is what I hooked up similar to what you did: Bring it up high in the "C" pillar above where the stock expansion tank is where I put an 'instrument loop' (double wrap about 3" radius) of fuel line, and then brought the line back outside the passenger's compartment and put the rollover valve and a small K&N Gauze filter on the end.

     

    Seems to work fine for me as well. As long as there is enough line volume to handle gas expansion when you fill up, nothing will pressurize or puke over. ( I still content gas expands when it gets hot...)

     

    Another thing nice is the fumes---I can put 5psig in my tank and it won't leak down over night. Any fumes I get I KNOW are not tank sourced. If you plug your carbon cannister vent line, or the diverter valve on the earlier 240's, you should be able to hold 2psi in the tank overnight. If you don't, you have a leaking line---most likely a vent, and it can cause gas fumes to be smelled.

     

    Main factor for me was cost as well, I put the fuel line conversion in years ago, and those lines are still fine. Even if they weren't the line is CHEAP to replace once the nylon conversion fittings are on there. These fittings were the same as Datsun used originally, I found them in a plumbing supply section at a hardware store. They had nylony, ABS, even brass. Since Nissan/Datsun used Nylon as an OEM choice, that's what I used, and they were cheaper than brass. Don't see a need for the weight and durability has not been an issue.

  15. It's not a Pop Off Valve, as it's not something that opens to relieve pressure. It's not an unloading valve perse, because we are not unloading it. Really BOV is describing it's function, and in both cases it does exactly the same thing: keep the turbo from surging by relieving (blowing off) excess air to prevent the turbo compressor wheel from going into a low-flow surge event. It stabilizes minium flow rates through the compressor as it's primary function (blowing off excess flow) and at the same time allows shaping of the intake manifold pressure curve dependent on speed, throttle position, or whatever other variables you would choose to corporate. Traction control is a great example. If you had a small turbine housing you could keep the wastegate closed, and run some pretty high boost pressures at very low engine speeds. You blow off the excess to prevent a surge at that low a flow, but the engine doesn't care that you have 12psi at 1000 rpms, and are blowing off 75% of the air produced by the turbo---it only knows it's got all the air it needs to have 12psi in the inlet manifold and it produces power accordingly.

     

    That is the hardest thing for people to grasp---you will launch harder (if you have traction available) being able to launch at 12psi and run a midrange psi of 20 rather than the conventional thinking of getting 30psi but only after 3400 rpms or whatever. The 'area under the curve' is huge compared to conventional wastegate only control.

     

    And it's great I checked in this morning, that means I got to get the manuals form Bill today as I leave tomorrow from here!

  16. If you look at the photo I posted yesterday in the S130 forum in the 'guess the cars hp' thread, it has the Z32 GTPZX dyno sheet...take a look at what the turbo boost is doing and tell me how that was achieved!

     

    One of the things the original Electramotive Company still sells is a turbocharger tachometer.

     

     

    Engine flow is irrelevant...the pid loop is based on turbo speed, and the actuator on the wastegate is set to track that. The BOV is set to maintain manifold pressure as you want it (see those 'steps' in the dyno sheet posted? Wonder how that was achieved on a WOT pass from 4000 to 8000? It CAN NOT happen like that from wastegate-only control. If you have the ECU controlling turbo speed and the controller for the BOV set to maintain manifold pressure based on rpm, throttle position, etc, you can actually tailor your power delivery so power comes on when you have sufficient traction, and really lay torque down.

     

    I took a ride in that car that the dyno sheet is taken from down in SanDiego in 1994 at the Z-Con Auto-X. Phenomenal. Johnny O'Connel was driving in Jack Murphy Stadium Parking Lot. Got some bitchin' video on VHS someplace of some other people riding around in it as well. It was restricted at that point, though, only making 750 or so horsepower, but with A LOT more torque down low. The car (according to Steve Millen and O'Conner) was MUCH more driveable with less HP and more torque.

     

    Most guys were sensory overloaded, I was. But I was spending a lot more time watching gauges trying to figure out what I was seeing. And I hadn't seen that dyno sheet until really recently. It is all making sense now what I was feeling while in the car, and how they achieved it now.

     

    Plus, some other things relating to the contrasts between tuning the VG30 for 1000HP versus the L28 for the same level of power. Some of the stuff Knepp said and was proud of now starts to make a lot more sense. As we deal with JeffP's car, we are starting to get a much clearer picture of what E-Motive did, and now that my fellow engineer is here in China with me, and has FINALLY brought all the damned manuals with him for this setup, I got to take them and then read a LOT on the plane to get up to speed. JeffP may now have a totally different way to control his boost.

     

    And I may have a way to run a GT35 on a non-ported head without partial throttle surge and hellacious holeshots!

     

    But I digress...

  17. As the owner of three S30 RHD 2/2's, I find this statement smacking of ignorance, please explain what you mean:

     

    "It just makes it dangerous to pass and harder to drive in the US."

     

    I don't have a problem passing, and I have no issues driving especially in SoCal where most drivethru burger places have windows on the right AND left sides of the buildings!

     

    Now, the ADVANTAGES of an RHD 2/2? I don't know, mine is about 2695# with a full tank of gas and my (at the time) 255# corpus in it... You do the math when they come with 4.11 or 4.38 differentials STOCK.

     

    Maybe that's why my 76 2/2 runs consistent 15.30's and US Specification slug-coupes are in the 16.50 range in the 1/4 mile.

     

    I head home on Friday, and if that car is still available I'd seriously consider picking it up. For nothing else, but spares of RHD specific parts. The prejudice against 2/2's is borne from ignorance, the RHD phobia? Perhaps a general inability to drive... Don't know, but I haven't had a problem since owning one since 1985 (coupe or 2/2)!

  18. "This is easy, its busy work but painful."

     

    WELCOME TO THE ADULT WORLD OF WORK OF AN ENGINEER IN AN OFFICE!

    YOU HAVE JUST DISCOVERED THE SECRET OF LIFE, SON!

    LIFE IS PUNCTUATION, SYNTAX, AND SHOWING UP ON TIME...

     

    "I feel like UTA is trying to fail me out rather then help me PASS."

     

    The purpose of a school is to weed out those incapable of performing at the level they demand for their criteria for a given subject.

    This is why Western School of Law in Torrance on Sepulveda graduates (a help you pass the bar exam eventually kinda school...) has an average salary for their matriculated and Bar Accepted Students of maybe $70,000.

     

    And why Harvard Law graduates with a "C" make 5-10X that amount.

     

    Same for Engineering Schools...go to a good one and it's not easy. If it is, your pay will likely reflect it when (if) you graduate.

     

    You, too can now laugh at the kid on ZCar.com who stated to me because he took advanced placement classes in Statistics that he 'had a good understanding of the subject'... He hasn't a clue. You are now finding out what inflated grades in High School do for you in the real world.

     

    It doesn't get any better out in the real world. You thought your classes are hard now? Wait until you take on a real job, and get responsibility for something...MUAHAHAHAHAHA! You haven't a clue what awaits in terms of workload. Salary job? he he he he... No overtime for salaryman! Just business expense account if lucky, and no questions on the bar tabs nightly!

     

    "I was under the impression that these classes are weed out classes and it will get better once you're in the department. If I'm wrong, I don't want to have anything to do with engineering at UTA."

     

    It's not any better at any other good school. It doesn't get much easier than the 'weed out classes'...it's what determines who is an Engineer, and who gets a business degree...

     

    And eventually an MBA...

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