Tony D

This was known well before this time in Japan... Actually for mild turbo applications you can bore larger, but the specific output isn't really all that great. When you start pushing 200+HP/Liter, bore wall stability is a good thing. How thick are the liners on an Oldsmobile DCRE making 1800HP from 7Liters? (Or thereabouts...) This isn't rocket science, you just need to know where to look.

Who is John Galt?

Welcome to the Microsoft Haters Club. Why it do dat? Only Bill knows. I don't delete ANYTHING anymore, their craptastic backwards compatibility/incompatibility is legendary. I was going to say save it in the new format and you should be able to reopen it then later. Should. As usual, Microbloat software never fails to fail. Good Luck. I would have kept it in 2003, and run it in 2003. As long as I could. JeffP still runs 98 on his home stuff...

Step change is only going to affect you if the rings run over the gap... Outside the box, gentlemen, please! LOL

Well, now if you want increased deck height there is a device that looks like that, used in conjunction with cylinder liners...

Rolling a cone is a basic sheetmetal fabrication skill. Look to any HVAC Duct Construction layout book, and it should show you the layout for a cone. Stick it in the slip roller and you're done. Easy Peasy! Basically, you lay out two arcs which scribe through the circumfrence of the circles at the repsective ends, and cut a pie-wedge shape out of sheetmetal with the respective arcs at each end. It's a horrible explanaiton, but when you see it laid out from the text in the HVAC Duct Book, you will see what I mean. Start on page 2-19 on this link, and it will make more sense. "Frustrum", "Trammel Points", "Bisect".... ahhhh, old trades class, what has it been now, 25 years? http://www.globalsecurity.org/military/library/policy/navy/nrtc/14251_ch2.pdf

I've been up on that phrase ever since 1973, when in elementary school I foolishly raised my hand (as did everybody in the class) when asked by a gent of Chippewa Heritage if we all 'spoke American'---after which, he continued his little lesson in Chippewa... After a brief interval, he stopped, and laid out what we spoke: English. That this was his country, and his people spoke that way: American. And the furthest he would go would be to acknowledge we spoke "American English"... He started the lesson asking who was 'german' or 'french' and doing the same thing to them using those languages, and making the point they were immigrants of french/german descent and now they were AMERICANS, who spoke AMERICAN ENGLISH as 'the standard language of the country' (oh, how I wish that were true these days...) Since that date, I always wondered when someone said they spoke American, what particular dialect it was, Navajo, Cherokee, Chippewa, Souix, etc... And I never say I speak "American"... Maybe we all need an infraction!

pump impeller gone

You speak Navajo? (or in your neck of the woods, Cherokee...)

My bet on the blowby is that measurements of the bore reveal distortion during the freshening checks. It's one thing if the wals flex and you blow by, it's impending doom if the walls flex and don't return to round or straight afterward.

It's dependent on area. The original design was suitable for OEM levels of durability (say 70-100K miles) at stock boost levels. But they aren't 'overdesigned' like most other parts of the engine. When you run 10psi, as opposed to the stock 5psi you double the load on the bearing. At 15psi, you've doubled that again. Exponential? One of the biggest things people do to increase longevity at higher boost levels is go to a "360 Bearing" meaning the whole face has a thrust face on it, 360 degrees. Like VW Cam Gears (only one half of the split bearing had a thrust collar on it), for performance loading, putting more bearing there lets it live longer. Halving the loads. Basically, the loading at 10psi on a full thrust bearing would be the same loading of a stock turbo at stock 5psi of boost because the increased bearing surface.

My parents don't have that excuse... I got it, but my little brother escaped. Lucky bastige!

That is the 'Black Book' I was referring to in an earlier post bout fuel system layout. In conjunction with the Skyline Edition (Volume #2), it has a LOT of good relevant information about the cars, as well as the engines (L-Gata)... Mine arrived via DHL two days ago---beat me home by a day!

Wow, you know Angus Young? LOL I think I'm burning all my old photos from mom and dad when I get them... I don't want any photos of me out there pre 1984... LOL

Hoke probably put it better than I did, if you grasp at the wrong masters direction, you can either waste a lot of time, or get it right. Likely, you will miss the boat. Getting out there, and working gives you a LOT better idea on which way things are flowing. You may come across something you recognize people missing, or overlooking, and say "hey, I can be the expert here" and then specialize further. But until you get out there you won't know where that is... It's not like the movies where some guy comes up and says "Plastics" and then walks off and you spend the next 20 years going 'Oh man, he hit it right, I should've listened then!' But back to what Hoke said... he mentioned something I was being diplomatic about as well. I was once told by someone 'how can anybody be a 'master' without ever working? Others have said they won't hire a masters of anything unless they got the diploma after they were 32-35. In some administrative occupations I've been told they will basically ignore a masters acquired before the age of 40! I know a LOT of guys where I work that the company paid for an Executive MBA so they could go into upper management. But till then they paid and paid for classes and confrences, seminars, all sorts of knowledge. In an engineering profession, the company (if you have a decent one) will realize that any additional schooling you get, you will benefit from, as will the company. If you 'need' an administrative specialization like an MBA, you can get it at any time later. Till then, your hands-on skills will benefit the company more directly. Getting that first job and finding your niche is more important IMO than getting an upper level degree. Mostly because right now you're unfocused. You still have no clue what the working world needs, or wants. It may change in 2-3 years and you may find going in a different direction is more to your liking. If you are in school when this happens, you're SOL, you won't know it happened, or won't see the signs that it's happening and be able to shift your coursework accordingly. The one thing I've seen consistently over the past 20 years is that people doing the teaching rarely have a hand on the pulse of what the working world really wants. They know their cirricula, and they can teach that very well. But for trends in the working world they are sadly behind the times. Really the kids on internship programs are their most valuable feedback source for the information they DO have. I saw it in the military as well, and to this day I see guys with resumes written by base career counselors and usually take the time to talk with them after the interview: "Do you want to be the CEO of this company, or do you just want to do a job where you fix the exuipment, and go home at the end of the day and don't want to worry about getting phone calls in the middle of the night?"---in almost every case, these guys (upper level enlisted guys) will say they are SICK of upper level managerial responsibilities, and they just want to do a job and go home. I advise them to trash the resume the government people wrote them, and totally rework it. The government career counselors know what they THINK the working world wants to see, but they have no clue. Because they aren't out there. And that is the key, IMO: Get out there. Do something. Once you're out there, you will be amazed what you will find that will interest you. And if you're decent, good work will FIND you. Additional education can always be had, and if you are someone desired, they will PAY YOU AND PAY FOR THE EDUCATION. And to me, that is probably the best way to go about it. Having student loans sucks, you got to pay them off. Do so, with a job. And from this point forward, you shouldn't have to pay for classes again. Come to think of it, I just realized I have to call HR to get our company's scholarship for my son. He starts school next year, and I totally forgot our company has a 'gimmie' program for kids of employees who go into any engineering program. Hey, free is free, and anything I can get for him means less out of my pocket, right! LOL

I don't know about 'easily'... At 16psi, you are effectively putting 200% more pressure on the stock thrust bearing, and it will not last long. Frankly, I wouldn't waste my time with anything more than 10 psi on the stock turbo. You can use it for more, but the efficency is degraded quite a bit. Anything over 13psi and you start getting into longevity issues because of the stock thrust bearing limitations.

Most companies will pay for a job-related Masters even today. Why pi$$ away your money for another 3-4 years and go further in debt when you can go out, focus your life towards a specialty, then get someone ELSE to pay for it (and pay you decently at the same time!) Usually they want a business masters anyway, and not a technically-oriented masters unless you are in a really specialised field or doing research & development.

Any rotating equipment experience? What are your feelings about overseas travel...

Why did the Auto Union dominate at that time? Though using the term 'leaders'... According to the official Merc posters they didn't produce anything from 35 till the gullwing... BMW wasn't squat then, they made bikes and airplane parts... I hear they had a shortage of competent bicycle manufacturers in-country then, though. They relied heavily on compulsory voulntary donation importation from neighboring countries to fill that need. All das kliene kinder frolicing in the alps in lederhosen singing "valderi valdera, valderi, valdera-ha-ha-ha-ha-ha, et cetera..."

You're thinking of the earlier cars where the Auto Mount bolts into the unitbody of the car differently than the Std's. By the 280Z model, this difference was gone (actually by 72 or 73...)

Don't knock VW... You could buy one with stamps gathered at work, giving you the freedom to roam the autobahn... Truly, "arbiet macht frei" at that time. At least that's what all the signs said...

Yeah, but only one subset of the two populations perpetually drives in the left lane with their left blinker on, and a finger continually on the fullbeam switch... "EPBMWD" LOL

AND I QUOTE FROM YOUR OWN POST: "On another note I used about 8 pounds of soda and 40 gallons of water for the solution. " Hence my commentary of using 5# of HTH to knock it back to 7. As I said, this is basic chemistry, not rocket science. You don't need to be a boy genius to figure this out. Your sig says Houston, and you said "SEWER" ... 2+2 logically equals 4. If you are on your own septic like I am...then I don't have a public forum comment for what you did, it surpasses dumping it to a million gallon a day system by a factor that is mind boggling. You're upset because I don't find what you did funny, or cute in the least. I'm not on a high horse, I'm being intellectually honest about the situation. If you choose to delude yourself, that's fine. It's something I would never have done, because it's wrong. If not by Houston Guidelines, if not by Federal Guidelines, by moral guidelines. I don't see poisioning the planet as humorous. Not in the least. And it's something I can not support or condone. 5# of HTH and a broomstick and none of this conversation would have been needed. And regardless of your take on it, IMO, that course of action was the mature and responsible action to do before sewering it. And you're arguing that point. This is a point I shall argue no further, to me it's simple black and white.

I don't own a Z Car with a stock weight flywheel, an can't imagine a situation short of the wife's Navara going rock climbing in compound low where I'd want a stock weight flywheel! That goes for VW's and Corvairs I own. I've had lightened flywheels in everything since 79! The following generalities are true: having a stock 3.36 gear will make it harder to launch. having a stock L24 with no torque will make it harder to launch than a larger engine. having any turbo or L28 is childs play, even at 3.36... If you can't hold a car on a hill with a clutch, likely you will have an issue launching the car with a lighter flywheel. I have no problem holding my car on a hill with a light flywheel...My son doesn't stall the car either, and that was his first learning experience. Matter of fact, he thinks the wife's Navara 'is really mushy' on the engagement compared to the light flywheel and clutch setup he learned on in the Z.

Let me make this perfectly clear: California is a big PITA to deal with bureaucratically. We had processes where we ran glycol. If the glycol was in solution BELOW 50/50, we could directly sewer the wastes. If the glycol to water concentration was ABOVE 50/50 (like 60 glycol, 40 water) we COULD NOT sewer it, it had to be disposed of in drums as toxic waste. We COULD NOT dilute it to 50/50 and then sewer it. It was illegal. And they fined you. And they DID do checks. Curiously after finding this out, all our glycol systems were administratively corrected after engineering review to allow the usage of 45/55 glycol water mixes. And STUPIDLY enough, we were allowed to dilute the mix in the system (basically pumping in water by calculation) to reach this new leagally sewerable goal. If we removed the mix, to dilute it and then reintroduce it to the system it would have been covered under it's original operating conditions, and would STILL have to be carted off to hazmat because it was originally more than 50/50 concentration. Glycol is water miscible, you can dilute it at any time. We literally had thousands of gallons outflow a day (an hour...) and dropping in 55 gallon drums of glycol straight into our clarifier wouldn't have made a DENT in our allowable permit conditions. No way they could have ever told either. But having some ethical and moral compass when it comes to dropping untreated chemicals in large doses down drains (or even better: storm drains) seems to be the better route and higher ground than cutsey rationalizations or excuses. I have seen people in other states (small towns especially) who have dumped things down the drain, and later in the day or the next day had people knocking on the door with fines. When their little 'deposit' hit the sewerage facility, it set off all sorts of alarms. And then they went to sampling the relatively small sewer system to determine which points the substance was found, and from there, tracked it right back to the originating household. Never dump a gallon of gas down the drain in East Tawas Michigan, "the sewer police" WILL find you! (And that was 1979---imagine technological advances in real time tracking nowadays and what they can do!) Seriously, 5# of HTH and none of this discussion was necessary, and you would have sewered harmless saltwater. You're arguing in defense of what you did that it was the right thing to do? In light of how easy it would have been to simply dope the drum and then sewer it correctly, I don't see it that way. Doubtful the local sewer people would look kindly on it had they known, either! Might check with city of Houston eGubbmint site regarding the people at Pretreatment: "It administers and enforces federal EPA regulations, as well as City of Houston Ordinance, Chapter 47, Article V., (Disposal of Industrial Wastes through City Sewer System)." I'm sure if there was no issue doing it, the guys at Pretreatment will tell you so: 'Go ahead, just dump it, we got enough volume, it won't make a difference!" Could be the case. Doubt if it is, though.