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Pop N Wood

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Posts posted by Pop N Wood

  1. I run two sets of wheels and tires that are the same as the ones you listed. My street tires are stock 14 steel wheels with I think 195 70's while my autocross tires are 225 50's on 15" Riken wheels. I have never noticed anything adverse in the ride with the autocross tires, other than feeling more bumps from the lower profile tires. Not sure what you mean by "tracks the road".

  2. First off, excellent post. Always learn a lot from such posts. Good dissection on how an engine is destroyed.

     

    BUT the statement

     

    first thing to keep in mind is that [b'] theres no such "thing" as horsepower, horsepower is a mathmatical formula for the RATE at which TORQUE can be applied

     

    is misleading to the point of being untrue. People constantly quote that and it is simply a wrong way to look at the problem.

     

    This has been discussed many times. If anything power is the only "real" thing and torque is a mathematical contrivance. The second law of thermodynamics governs HP, it can neither be "created or destroyed". Torque is a number that varies as it goes through gearing. It is calculated by dividing power by the shaft RPM. Torque can be increased or decreased at will. Just use different gears. But the power in and out of a gear set (less losses) is constant.

  3. for those that have done there gas return lines etc. What did it intale and were the parts (hoses) expensive. Did you get them at msa or victoria british? And what were the parts called? I am figuring that when I corner left I get more fumes in my car it probably is the hoses are bad. I thought I sealed everything else with new rubber and silicone. But man it stinks bad on a hard corner.

     

    Thanks all

     

    That was the exact same problem I had. On my 1971 Califonia model there is a plastic fume tank in the right rear C pillar that has 3 or 4 rubber hoses going to it. Different years have different set ups, and the Califonia editions are different from the non-Califonia models.

     

    The Nissan dealer had the hoses, and they were $150 more than 15 years ago. Don't try and use heater hose as it won't hold up to the gas. Installation is not so bad once you get the tank and interior body panels off. (That's a joke son. Getting the tank out can be a beotch.) I have read of people capping the vent lines at the tank. I don't know why they had to vent the tank at so many different points. Seems like a single vent at the fill spout would be enough.

     

    This is an absolute must do fix though. The car was miserable before I replaced the hoses.

  4. Guess if it were my car I would replace all the obviously bent parts then look into having a frame shop do a check on the chassis. You want to start with a nice, straight chassis before you weld in the rear quarter panel.

     

    Probably 95% of the guys wouldn't do it this way, but that's the way I would do it.

  5. Arizona Z car suspension. All 4 corners. Big bucks. How fast can you afford to go?

     

    Then sell me the stuff you take off.

     

    Quiaffe. R180 at that (saves weight). Aluminum driveshaft.

     

    Gut interior, aluminum dash with mininum number of gages, full cage, and of course the camber plates will come with the Arizona Z car suspension. 15" wheels. No bling.

     

    Get with JohnC and get alignment specs for the track. Guess they aren't the same as street.

     

    Aluminum radiator, lexan windows, carbon fiber hood-hatch-door skins, anywhere you can get it. No heater, AC, power steering or even radio. Single racing seat. Small battery. 8 gallon fuel cell, maybe smaller. Gotta shed weight. Under 2000# would be a good goal.

  6. It would just make sense that sealing the rear would help with fumes, because driving with the rear hatch open definitely causes it. But in all the posts I have read I don't remember anyone claiming to have cured exhaust fumes that way.

     

    I have read claims that extending the exhaust tip out and cutting it at an angle cured the problem.

     

    Now gas fumes are another issue. The early California Z's have 3 or 4 rubber vent hoses snaking all over the back of the car. Those were bad on my Z when I first got it. Car stunk to high heaven every time I took a hard turn. I walked into a Nissan dealership with the hoses in my hand, the guy looked at me and without saying a word dropped the hoses in front of me and said "$150".

     

    guess it is a pretty common problem.

  7. If someone manages to fit cats under a first gen Z I would like to see pics. 2.5" in/out cats are probably 3 or 4 inches at the thickest point.

     

    The rear O2 sensor are usually not used to make the engine run. They just throw a code. So if the code is edited you should be good to go. You absolutely want to have the before cat O2's or your car will never go into the closed loop mode.

  8. The Onstar has to have some type of antenna. If you can't pull a separate fuse, then is it possible to short out the antenna? Maybe hook a plug wire to the antenna output port?

     

    Guess if the black box is part of the ECU the only way to disable would be by reprogramming it.

     

    Hmmm. Sounds like a new ebay buisness opportunity. Get a copy of LS1 edit and delete the onstar-black box code. Probably get $200 a pop.

  9. My 240 doesn't stink, windows or not.

     

    fl327 always claimed 240's are more prone to this than 280's. He has owned both so must be something to it.

     

    There was an old thread about belly pans and diffusers that went over and over on this. One of the take aways is to extend the exhaust tip out and down. Otherwise the exhaust gets pulled up behind the hatch and comes along the rear quarter windows and in the car.

     

    In all the posts I have read, I have never heard of anyone fixing this problem through sealing up holes. Must be more to it.

  10. Sounds real shaky to me. Not sure what he could tell from a copy of a money order. Not sure what the angle is there.

     

    I personally would never enter into a bargain like that. Then again, I would never buy a car without seeing it first. Not for any reason (unless it was the pope's car or something).

     

    Either book a plane trip or try to find a HybridZ member in NY who will take a look at it for you.

  11. nissan mounted the mirrors on the fenders to make the car narrower. If the mirrors were mounted on the doors like other cars' date=' that would be the widest point of the car and the widest point is what Jap car makers were taxed on.

     

    Anyways I would just run a small fiberglass bumper, like the 240 style, that IC looks mean[/quote']

     

    Interesting. I have always wondered why Japanese cars had the mirrors so far forward. Must be a real beotch to adjust when they get bumped in a parking lot.

     

    I know a grill doesn't help much, but I would worry about rocks taking out that unprotected IC. Even a slight deflection could make a difference. Think what a small animal would do.

     

    Z's are notorious for having too large of a radiator opening. All that air entering the engine compartment actually causes the front end to lift at speed. Not to mention the increased drag (sort of like riding a bike with your mouth open). I don't know that a G nose wouldn't increase the cooling flow through the IC. It might smooth out the air flow.

     

    Just a thought.

  12. Actually I already own the 240sx brake kit. What I was talking about was Ross's $695 4340 axels

     

    http://www.modern-motorsports.com/catalog/product_info.php?manufacturers_id=&products_id=62)

     

    mated to his $395 4340 companion flanges

     

    http://www.modern-motorsports.com/catalog/product_info.php?manufacturers_id=&products_id=63

     

    Then I just need the 280 ZXT shafts, bearings and seals to get it all to work with my R200.

     

    JY 280 stubs and the stock 240 U joints don't sound so bad for now. Think I would rather get an LSD before worrying about axels and halfshafts.

  13. At 35 years old and counting, my 240 stubs are coming out to get inspected anyway. Since I will be replacing the bearings in the process, I might as well upgrade AND do the 240sx disc brake conversion all at the same time. That way the disks will at least keep the wheel and broken stub axel in the same lane as my car. Some things just aren't worth risking.

     

    My only real question is to use JY 280 stubs and flanges or go with Ross's 4340 axels. Anyone know if the 280 inner flange is compatible with the 240 half shafts? Tempted to do the CV conversion at the same time, but that would put me well over $1000 in parts alone.

     

    Also JohnC has often said that big tires and hard corners can break the stubs, so don't know that this is an issue for the V8 guys only. I have seen pics of broken stub axels posted from cars with stock engines.

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