JMortensen

Ground Control now makes a strut that is good enough for super high spring rates. Price is high (compared to a set of Tokicos or Konis), and if I recall correctly they only fit 280Z tubes. Also, front springs seem long. Not sure if you'll have a problem, just commenting. Jon

Also you could put a cyl at TDC then use an air gun in the spark plug hole. If the air comes right out the intake or exhaust port, that would be a pretty good sign. Jon

Check the valve lash. Should be way outta whack if the valves are bent. I suppose that if they just barely hit then they could still be pretty close, but if pistons and valves smacked hard they should be pretty easy to tell. Jon

Cool! If you have any questions shoot me a PM. If I knew then what I know now I could have saved 1000's of $$$. Jon

That's interesting, as I had heard that you could not swap the pivots out. Sounds like you have done this before, or are at least sure that it will work on the head you are building. One more rumor debunked! Jon

Check this out: http://www.geocities.com/zgarage2001/p90.html If you haven't already seen it it has some good info. Also, I thought P90a was the hydraulic head. Jon

74, that is sweet. Jon

Do you have any idea of the total weight in tubes that you've put it? I just sold my 50lb Autopower rollbar to Auxiliary, I was kinda hoping to get a full DOM cage for about the same weight. The guy who did the all .095 cage in the 510 said he could do a 10 point in a 510 that weighed less than my rollbar. Jon

Yeah thanks! Very interesting. Jon

That was the royal "we" Jon

I can't speak for anyone else, but I never liked driving the Escudo so I didn't mess with it much. No matter what you do you can't get the car to rotate, at least I couldn't. Jon

Oops. Sorry we had your nick wrong. Would you care to enlighten us despite our faux pas? Jon

.080 shaved would be .160 extra chain FWIW. SleeperZ, you would think that the tensioner has enough throw to keep everything in line, but the engines I saw with milled heads that did not have shims did just what DAW described. Not sure why it happens, but I've seen it. Jon

That's enthusiasm. Jon

Check the Jeep at the bottom left of the page! http://www.molestedcars.com/trucks2.html Jon

OK, thanks for the input. I appreciate your viewpoint. Jon

So JohnC, I thought the downside to DOM was brittleness vs pipe. Was I mislead? I think I was reading that in "How to Drive Faster" or some such book. They basically said that DOM tubing was stronger thickness for thickness, but more brittle and pipe was softer so it would bend instead of crack. I already know I had the schedule 40 thing wrong, but what about the other? The book also said something to the effect that pipe was preferred if weight was not an issue and there was a possibility of multiple impacts (which I took to mean circle track racing). Oh, and what material is your cage made from? I've heard people talk about .095 wall and .125 wall 1 3/4" DOM. The .095 wall was on a recently done 510, not sure if that would be thick enough for SCCA or NASA on a Z. I suppose I need to follow my own advice and get a rulebook too. I think this project is in the near future for my Z. If I were to prepare it for a class of roadracing it would probably be an EP car, that is what it is closest to at this point. Thanks, Jon

We need HLS30 to tell us about the Z432R...Japanese highway patrol car 6 cyl 2.0 liter triple sidedrafts. That's about all I know. Jon

I don't think that there is a class that wouldn't allow heavy pipe, like schedule 40 or thicker. GET A RULEBOOK! The main advantage to DOM (seamless) is that you can run a thinner wall with the same strength and a lot less weight. Jon

The spring rates on Eibachs are usually printed in white on the coils. They have 3 listings spring length, diameter, and rate (not sure which order). I think my 10" 2.5 ID 250in/lb say 1000.250.250 if I remember correctly. Its late, sorry I couldn't be more specific. Jon

http://auto.howstuffworks.com/differential.htm It's all in there. Jon

Hydraulic lifters in the P90a can't handle really high lift cams. Jon

My wife has food poisoning and is at the moment, so I'm probably going to be up all night... bad sturgeon. She liked the taste the first time... http://www.geocities.com/ecocorner/intelarea/rb.html "On the evidence so far, the success of this strategy has been, if by no means complete, greater than usually understood. Under pressure of the deficit, spending as a percentage of GNP peaked in 1983 and showed a gradually declining trend for the remainder of the Reagan Presidency." Maybe that's what I had heard. Government spending in proportion to GDP, not debt in proportion to GDP. You completely avoid addressing any of the supposed benefits of that system. The question to me is "Do the benefits outweigh the costs?" If you only look at the debt, the whole situation seems a no-brainer. In my personal experience, though, I can tell you that I am happier and have a better outlook on the future now despite the fact that I am as heavily in debt as I have ever been. The debts that I incurred allowed my wife to go to college and for me to start a business which is now making a profit, and that is more important than the currently accumulated debt totals. I had no debt for the first 5 years that I owned credit cards by the way. Always paid up, but I wasn't going anywhere in life. Again, I don't claim to be an expert here, but here are some benefits listed in some of these articles: 1. Collapse of USSR 2. Largest peacetime expansion of any economy ever 3. GDP growth per worker increased from .8% to 1.8% 4. Productivity in manufacturing increased 3.8% per year 5. Unemployment declined from 7% to 5.4% 6. Inflation dropped from 10% to 4.2% Some cons: 1. Went from 1 trillion debt to 2.8 trillion 2. Introduction of trade barriers Was it worth it??? Jon

Something makes me want to say that the driveshaft and the car are not related. I've seen rockcrawlers do that with double transfer cases and 5.13 gears on 44" tires while bouncing on rocks, but never a drag racer. Also, you would think that it would blow a CV before twisting the driveshaft that hard... That's a lot of twist for a BMW. Unless of course the car was up on jacks spinning at redline and someone pushed it off. Look how rusty the driveshaft is, then look at the car. I just don't buy it. Jon

http://www.parida.com/reaganomics.html http://www.econlib.org/library/Enc/Reaganomics.html Two totally different perspectives. I'm still lost. Jon