Tony D

There is no distinction. The position of the sensor is irrelevant if the linkage is properly designed. "The lines are our friends, stay within the lines..."

The population doesn't justify it. Port diesel emissions are mainly from Two-Stroke diesels. The conversion to CNG/LNG considerably cleans up the atmosphere. I've seen that dramatically, having been in Downtown Bangkok in the 80's, and returning more recently. Their push to CNG has been VERY effective in cleaning the air from heavy vehicle pollutants. The truckers brought that on themselves with rampant over fuelling, and no particulate traps. Don't police yourself, someone else will, eventually. My main objection was to the use of "two stroke" which no passenger diesel has used for a long time. It's a heavy truck and stationary powerplant. (Many ships) and many people incorrectly refer to ALL diesels as "two strokes"... They're not. Btw, two-stroke automobiles under 1,000cc's are smog exempt. New option for newer Z owners looking to dodge those pesky smog inspections every two years!

The Oilburners are NOT two strokes! Those are like Detroit 51/71/92 Series Diesels...

Mileage motors for competition in the 70's~early 80's commonly used it. They go on one premise: pick a speed and load, dont vary much from it, and then trim to minimum fuel to maintain forward motion and nothing more. Acceleration? Hillclimbing? Require enrichment and shoot the 100mpg claims in the foot. If you look at today's high mileage cars, they have CVT's. put engine to its peak efficiency point, trim for it, and keep it there. Same premise. We didn't have them in 1979... Except on snowmobiles! The more things change the more they stay the same. That looks like Yunik's Adibiatic Engine, the Fiero he set up to run like that was on sale recently. There are principles that can be leveraged, but the more you leverage them, the more critical each component becomes. One thing off, and you have a cascading catastrophic failure. Not practical for 99.9999999+% of the everyday motoring public.

Buying one of those was a godsend at my place, easily do tire changes unassisted now. Nice idea for doing the wide rims!

Why does he TPS HAVE to be throttle-body mounted? Putting it on the crossbar is just as effective... For that matter, you could put it ANYWHERE you got a decent movement with enough degrees of resolution...provided you don't make a sloppy linkage arrangement...

Yerp, no BMW Oilburners here yet...

I guess Monzster "Felt" he had to say that! Guffaw! Merry Christmas to all! Ho' Ho' Ho'!

More bad or misleading information! The manifold I'm referring to is stock, with extrude honing ONLY. Diameter of the runners isn't even the FIA-Homogolation Legal 35mm, rather a polished 32 mm stocker diameter. The power quoted was at the rear wheels, and was achieved between 6800 to 7200 rpms, depending on the boost being used. The quoted Electramotive numbers are publicity-only figures, nowhere near what it made. That car utilised a Nissan Comp Triple Manifold (so did the head above using the stock manifold, it's how the inferences were quantified...same porter who did the Electramotive Head in the GTO car, did this head as well...) the Electramotive car made 1,100hp with around 30psig using first generation fuel and ignition controls. For most races it was runnin closer to 740 HP, depending if they needed to make time. If you actually PORT the stock manifold, it flows more than 190cfm per runner. The 190 was an extrude-honed stock diameter, and it's not a limitation at 650/72~7,400 rpms... Other than it could flow as much as the port (225 CFM)... But when you're making 650hp at 17psi of boost it ones your eyes to some paradigms that aren't necessarily true! (EDIT) Oh, and to address something stated above, during low-boost setting testing, this engine had a torque reading of 380ft-lbs at 4,500 with 8.39psi boost... The 5,500 "out of breath" phenomenon is PURELY a CAMSHAFT FUNCTION!

Yep, actually LY's were making 325+ as L24's... Bigger engines make more!

Cool!

Yes!

Turbo'd LY, yep.

Behind the passenger's seat.

Urinal? http://www.tradewindsimports.com/21-mira-single-bathroom-vanity-espresso.html This is a urinal, right? And pants are not my favourite bit of clothing...

The value of the dollar sure has gone into the toilet!

"Undies"? "Pulls pants up"? SIR! You assume facts not in evidence!!!!

Yes, exactly. A shop that works on them all the time would have told you this 40 posts ago. Now you're out money and can do the Gollum-Suggested #2 option. It is a Gene-Berg "if you don't have the money to do it correctly now, when will you find the money to do it over?" Sometimes when the machinist says its not repairable (economically is the term they like to use...) they really mean just that! Stick with the Z-Club, find someone with a used head you can bolt on and run. You just learned one of my oldest axioms: "I'd rather run a Nissan-Assembled component with 100,000 miles on it than most stuff people have "overhauled" and are selling for some reason only 10,000 miles later!" Most work is fixing things that aren't broken, or limping things along that should be scrapped! Sucks, sorry about the painful lesson. I'll be in Houston next week, with a truck... Get a lead on a head anywhere from Chicago/Wisconsin to Dallas, I can pick it up and deliver it to you! (Maybe a whole engin!" Get on the Internet and with the local club.... I can take shipping out of the equation if you PM me before I pass wherever your new parts are laying!

What's in my profile? JeffP is Underwriter's Lab... Especially when I'm around! We way over tested the XXXXXXXXXXXXXXXXXXXXXXX on the engine dyno, but the results were amazing!

Some of us just stand up and walk to the cabinet. No drama... To quote Arnie Cunningham: "Sh*t wipes off..."

This story reveals minimum checks done at EVERY STEP. The "Blinder's on System of Checking"---go until you find the first thing, then rush to fix it. A dimensional check on a bare head takes five minutes with a feeler gauge, straightedge, and height checking device like a surface plate mounted height gauge or vernier calliper. That they are fixing one thing at a time is par for the course for a production shop being told what to do, or being quick to push stuff out and bill for it. Again, Houston-San Antonio-Dallas ALL have GREAT Z-Car Clubs, with hundreds of active members who can tell you where to go for COMPETENT machine work on the Nissan OHC head... Pleas avail yourself of this LIVE resource and find a shop that knows what they are doing. This is turning not the classic pay me now or pay me later scenario...

Let the beasties in cauldron #4 at OCSD Fountian Valley digest those articles as well JC.... Rub it enough it gets furry.... mmmmmm, Sears Catalog glossy paper wiping....

Crowne Plaza, free nights for me! WOOT!!!

That will be one hell of a break! I hope you take an "interesting" route, following the old spice road through the former Empire! Burma is now open... I've been toying with the idea of a RoRo to Singapore and auto-touring through Malaya, Thailand, Burma, Cambodia, Laos, and maybe Vietnam. Rally-Spec 2+2 mandatory!

Process covered extensively in the "How to Modify" book.