rudypoochris

That is a mean looking car. Honestly though the all black treatment doesn't appeal to me on the S30. I think the great lines become difficult to see. Anyone know more about that car?

I found it interesting, after some thought, that there was no mention of the Z32? Whats up with that?

Thanks for posting that!

I am wondering, from people who own these types of cars and have more age on them than I do, how a typical 90's sports car would stack up against a modern performance sedan. Take a Lexus GS350, Infiniti G35, or a BMW 5 series for example vs a Z32 Turbo, C4 or C5 Corvette, or a Supra. Have sedans really gotten to the level of last decades sports cars, or are they still behind. Just wondering peoples opinions on this one. Concerning stuff like handling, acceleration, etc. Or is this just way too general of a question?

72 240z build date 11/71

I have been thinking about tanks for a while. I came to the conclusion that a fuel cell might just be better all around and less of a worry... the problem is mounting it and the plumbing (minor).

So I notced the date on this forum is "69 to 78". I always thought that 78 was the last model year... thus 77 would be the last build year, or was there overlap?

Anyone looking for a set of never used 16X8 grids with 245/50/16 BFG Gforce Sport W-Rated tires on them? LOL.

Anyone know if a 245/40/17 on a +4 8.5" rim clears the stock fenders? I guess more importantly... Do ZG flares provide more clearance? If so is it enough. Hmm.

I want to jump on this one. I am happy with the grids, but have always liked the wantabe look so much more. What tires sizes do you guys think for this rim? 245/40/17... is 255 too large?

Thanks for the links! I think I will! OTM I am just a fresh-more too. Where are you located?

Heh im an undergrad in mechanical engineering. That is a good idea though.

Ya, liquid (water for me) is nice. Been looking into it alot. As for getting go/no-go data. That was what I was wondering. In a broad sense, ya sure. I think it would start to make a really big difference once one was to start caring about the finer points. Ex. Like at what angle will this wing be most useful, or useful at all. I would imagine that changes alot with speed and the medium. My plan was (if using air) to slot the bottom of a rectangular tunnel and pop on a platform which the car would sit on. Two springs of known constants would be hooked up and each would have a marker that pulls across a scale. The attachment points would be adjustable so you could "Zero" it out. Still thinking. The air speed issues are bothering me though.

How important is Reynolds number to this all. It seems quite important for fine tuning things, but for the overall it doesn't seem to be a primary issue. Am I correct in understanding that Reynolds number basically decides whether or not the flow over an object is laminar or turbulent? If water is used (density is about 13 times more than air), I think a flow speed of around 92mph would equate to 100mph of air at 1/12th scale. That might be relatively doable. Then again... 92mph water is really fast...

Wait... so you scaled down windspeed in proportion to the size of the car? So 100mph would be 8.3mph for a 1/12th scale model? Is that right...? Will that provided scale results (as in 1/12th the force being read)?

Well to keep the same reynolds number you need 1200mph on a 1/12th scale model for a 100mph "real life" test. I am not understanding if this will make equal forces as in real life, or if it will generate scale forces. As in 1/12th the downforce. What fan are you using Olderthanme? I am thinking of going with water if 1,200mph in air is needed.

I am on summer break now and have decided that I kind of want to build a scale windtunnel. I would like to put 1/12th scale models in it. The problem I am having at the moment is determining the correct windspeed... Here is what I am hung up on. I was reading on wikipedia that to achieve the same results for testing, a wing 1/4 the size would need 4 times the speed. Does this mean I would need 12 times the air speed to achieve equal downforce as on the real car? Or does this mean I would need 12 times the speed to recieve equal scale downforce (as in 1/12th that of the real car). 1200mph seems ridiculously fast. I am happy with scale results since I will be calculating coefficents and such. If I do indeed need 1200mph I am thinking of simply switching over to water... thoughts? The second issue is providing the wind. I was doing some calculations and I think even the more powerful 20" "block" fans are insufficent. I am unsure. I know the taurus fan puts out something like 4000CFM which would be (4000*60) = 240000 cubic feet per hour. Assuming the opening to the tunnel is 8"x8" or .444 sq ft. The windspeed would be (240000/5280)/.444 = 102.3 mph. This would seem pretty good provided the fan can push 4000 cfm loaded and that 100 scale mph is equal to 100 real mph's. If this all checks out, how do I power it!!?!? 40 or 60 amps at 12volts... do they sell converters or something similar? 40 seems alot, let alone 60. The last issue is measuring the windspeed. How would one go about doing this acurately in a small 8" square tunnel? I haven't looked at the calcualtions yet, but is it necessary to know the exact windspeed or is an approximation based off the CFM of the fan "good enough". Thanks!

I think this would be cherry. I like the image biohazard had and 240hoke's idea of changing colors. I think there needs to be a uniformity to it. I have a feeling members rides will just be too random and unorganized looking. Hard to get the quality and lighting similar between them. I think maybe a single picture with different variaties in color, like this, would be nice:

GJ on the clutch install. What bore is that MC? I wasn't able to get equal to the stock Fox's stroke with anything less than 1-1/8" IIRC. Maybe the stock stroke is over kill?

I don't know too much about boats... but I would think a stock L20 would be kind of weak for the application wouldn't it? Looks like an L6 fits....

http://www.imcdb.org/vehicles.php?make=&model=240z

My Privi Part. ammo is coming today. I am signed up for hunter safety in july. Tomorrow I will go to the range to hone my skills.

The modular 4.6L is alot larger than the 302. Get a tape measure and search. Pretty sure someone put a DOHC 4V in a 240z. It is a tight fit.

I think a standard R200 should handle your power fine. Weld it or get a beefy LSD carrier though.