TheNeedForZ

There is a company that makes 4-valve-per-cyl. heads for various engines, not DOHC but still something to drool on. http://www.araoengineering.com/

To figure out how much weight is saved using helium : Measure the weight of a fully air-inflated tire, then measure it fully deflated. Take the difference in weight and multiply by 0.86 is your weight saving. bjhines, Gases are equally compressible with almost no discernable differences, their absolute pressure change vs volume change is governed by the same gas law.

Have you tried to use 50/50 mix like I suggested in post#17?

Wow do you have the spec of the engine?

Mainly fear...if it's not giving you any real problems then there is no need to fix it. When the car is idling, it is running at low rpm and so is the water pump. If the coolant is pumped slowly then coolant also spend more time in the engine, maybe hotter that way? Did you check to see if the belt tension is ok so the pulley motion totally transfers? Ethylene glycol has lower specific heat than water. If there is a higher portion of ethylene glycol in the coolant, your coolant will be hotter given the same heat input. To reduce bulk coolant temp, try going back to 50/50 mix and see what happens. The same amount of heat that heat up water 10 degrees can heat up an equal weight of ethylene glycol 17.3 degrees.

A different cap is not going to make your engine extra hot, in fact when circumstance is there, it will prevent boiling/cavitation as long as every other thing seals. You need to address the problem/question johnc and jmortensen brought up : is the fan shrouded? Is the water pump in good condition? Can you safely say there is no blockage/residue in the water passages? "...I can't even drive the car cause temps at idle with both fans on are too high. Sensor was reading 232 at 900-1000rpm before i shut it down..." So why can't you drive the car? Does it really give you problem when car is idling or just the fear of something bad going to happen?

I just glanced over their science paper and the interesting thing is that they don't fully understand how it works. They know it works but they are only guessing how. They used spectral analysis to determine what they have produced, and they know it's not hydrogen+oxygen nor water vapor. Their educated guess is that electron cloud of oxygen and hydrogen, as well as angularity of water molecule, has been reconfigured(into a higher enegy state). In a nutshell, they claim to have stored energy into water molecules without seperating the atoms, which is an acceptable idea. But why do they still have to ignite the flame before use? Maybe it's not 100% HHO but rather a percentage of HHO in hydrogen/oxygen gas? What I don't understand is how can the inventor claim to have an engine that can run "exclusively" on water? They are still keeping the public and competitors in the dark so there is no patent(I can't find one) and only one preliminary "scientific paper" that is guessing how it works.

Thanks for the link, I finally have a video of a Delorean moving the way it is meant to be : fast.

"....Sensor was reading 232 at 900-1000rpm before i shut it down...." Maybe sensor has gone bad?

It's like a Z's cute sister.

Pity we don't see that kind of dogfight in F1 anymore...

Ohhhh, can't recognize it without the hood, heh.

Maybe you can stop oil from dripping on the pulley first. Dust chalk powder in the area and see where the powder is carried away by oil leak? There are UV leak detector too but I don't think you'll want that.

what car(the "little lady") is that?

Wow genuine item....people doing restoration will pay a lot for that.

Thank you for Video #15, nice work again. Your progress is ahead of mine now.

Congrats!

Brandon! Are you the owner of the orange Z parked around the curb? go get your shotgun! some kids in their baggy pants stuck a magnet in your tank, they are trying to steal your gas! Thanks for the link BTW.

Why is tempering hard to do on a already formed object? You didn't get my point, I wasn't asking why use cryo, I was saying cryo will not magically make two different alloys blend at the boundaries. You said cryo will "even out the metallergy", I said it is not going to make the boundary "blend" then you said you didn't say blend....and then you said weighing the head down and cryo will cure warpage, where did you see that cuz I never heard of it.

You have a TT V12?

Must have argued with girlfriend. So 50% is painted his way. 50% is "Hello Kitty."

AK-Z, I know what cryogenic treatment is. It's not for the purpose you are talking about. It is used to extend wear life of metal objects or to improve sound of music instruments. If you weld the seams with a slightly different alloy, that's as homogeneous as it ever will be. Cryo the head like you said will not "blend" the boundaries or bond the discontinuities.

heh, MY BAD.