A/C System and Removal of Forum…

September 30th, 2009

Two things today:

First, the A/C system.  I have decided to remove the A/C system completely, except for the buttons on the center console and the evaporator assembly behind the dash.

I am going forward with a new method of A/C using an electric motor from http://www.revoltevc.com/climate/cooling.html.  They have a controller that will take 9-30VDC which will draw power from my 130A alternator.  I will have this motor/compressor placed in the trunk.  I’m looking at picking up their ~6,000BTU compressor unit and the controller that goes with it.

I’m thinking of removing the condenser from in front of the radiator and creating a sheet metal shroud that will cover the front and mount the fans on it.  Along with that, I will probably pick up a smaller condenser that comes with two electric fans that I can position separately, probably under the car, in between the exhaust mufflers at the rear end where the compressor can connect to.  There will be two lines going from the compressor and the condenser to the engine compartment.  The lines will be mounted above the driveshaft and transmission.  Plenty of room there.

Second thing is that I decided to shut down the forum.  There wasn’t any activity going on there so I decided to close it and gives me back my time that I spent going in to manage it.  Instead, I am still here to answer any questions.

I’m back!

September 1st, 2009

Okay, I’m back from my summer hibernation with this Miata project…

I was notified by the Motor Vehicle Division for a renewal of my registration and was required to do the emissions test again. Doh!

I went out for the first time with the Miata in quite a while – approximately a couple months of inactivity with the vehicle. Before I went out, I had the oil changed, and cranked it to get it all lubed and ready to kick some ass during the fall and the winter. I took it out for a spin, and man, it still feels great. The motor is kicking like a newborn baby just coming out.

Okay, moving on to the real issue today, emissions. I decided that I would take the risk of taking ALL the emissions crap off the Miata, except the carbon canister for the fuel vapor return (the emissions folks are gonna be using this to test the pressurization of the fuel system).  I have a smog pump delete.  I still have catalytic converters on.

I arrived at the emissions station and waited my turn. As I propped up the Miata on the dyno and followed protocol. This kid – some 22 year old kid running the test station was giving me the “oh my god” look at having a Cobra V8 in my Miata and just rambling about it. So, finally he gets ready to conduct the test, I tell him, “Dude, be easy on the gas…” He shrugged it off as if he hears that very often. We’ll name him Jose for now.

Jose sat in the vehicle and gave it a test feel, he gave it too much gas and engaged the clutch too quickly and the car literally jumped out of the dyno even if it had wheel stop blocks on the front wheels. He gave me that “oh s–t” look.

I yelled at him (it was already loud from the engine) saying, “Dude! I told you!”

So he conducts the test on the dyno following this dyno “trace” line.  Jose was all over the place like he was unable to control the beast.  The car’s limited slip differential (LSD) is keeping the car from fishtailing and remaining straight (this was a problem last time because I didn’t have LSD before).  The test fails.  He says, your car failed.  I tell him, no way, you’re gonna do it again because you did a pretty crappy job of staying on the line.  Jose responds with, “It makes no difference.”

I responded, “F–king hell, it makes ALL the difference in the world.”  So, the shift manager, Juan (another 22-23 year old kid), comes by and wanted to know what was the problem.  I explained the situation so he takes over the second test.  Same thing as Jose.  Crap test.  So both of them tell me, “Your car is FAILING the test!”  I then said, “You both sucked at staying on the line!”

Robert, the station manager came out to see what was going on.  A chubby hispanic guy, seemingly in his late 40′s or early 50′s, comes out and wants to know what the commotion was about.  I explain it once again.  Robert says, “Oh okay, yeah it makes a difference if you’re all over the line and not staying on the line.”  I was looking at the two young guys, and said, “See…”

I ask Robert, “Have you had any experience driving a muscle car with stick shift?”  Robert replies with a perplexed face and hesistantly responds, “Yeah… I have.  I’ve had a Mustang since ’72.”  I quickly responded, “Okay! You drive.”

PASSED!  Robert handled that motor like a champ.  Robert gets out of the car and says… “Holy s–t… This car’s motor feels like a ’72 Mustang with a big-ass cam.”  Then looked at me, and asked, “Kid, did you build this thing?”  I said, “Yup, you bet.”  He responded, “You did a hell of a job. I’ve built my share of small blocks and big blocks and this is among the best built.”  He then added, “My God, I’m impressed on the throttle response all the way through all gears…”

Hint:  When hitting high RPM’s in a delicate situation, shift to the next higher gear to stabilize the engine’s behemoth torque to throttle response so you are not surprised.

The numbers were slightly higher than the last time which shows you how big of a waste of space those emissions components are.

Miata’s Status…

July 3rd, 2009

Y’all must be wondering why I haven’t been doing much on my Miata lately. It’s not that I have given up on the project. I have definitely NOT given up on the project. It’s a matter of the weather out in Arizona. The weather in Arizona has been reaching temperatures of around 105-plus. The rays from the sun are so harsh that you could get a tan in matter of minutes even if you used sunblock with a SPF of 70.

I have been having issues with the A/C, cooling of the engine, and the such. In a previous post, I thought about removing the A/C system and implement an electrical A/C system.

So right now, I’m just riding the summer out because it’s extremely uncomfortable in the Miata while rollin in direct sunlight in the 105+ degree heat.

New Server Configuration

July 3rd, 2009

I rebuilt my entire server configuration for two things: lower power consumption and better redundancy and fault tolerance. Below, You can see my picture that I took of my servers in my hallway closet. This server is the server that is hosting this site right now.

This is how I’m able to sustain the site financially. The gray server on the right is a Dell Inspiron 530 with a Intel Core 2 Quad Q9550 processor and loaded with 8GB of RAM and has a PQI 32GB SSD HDD in it. The HDD contains only VMWare ESXi 4.0 as the virtualization system.

The server on the left, the black box, is built with 8 Seagate Momentus 5400.6 320GB 5400RPM SATA HDD’s. Why those? They consume only 0.9-1.4 watts per HDD as opposed to my former configuration that sucked about 5-15 watts per HDD. I had 4 in the previous set-up. Now, this black box is an iSCSI box that also has a PQI 32GB SSD HDD that runs Ubuntu 9.04 64-bit and iSCSI Enterprise Target 0.4.16 (IET). I have about 2.2TB of usable space on this iSCSI system. I’m using RAID-5 with a HP RAID controller with the LSI Logic chipset that I picked up on eBay with the 256MB write cache with battery backup. I yield about nearly 650MB/s read and 450MB/s write, sequentially.

Basically what’s happening here is that I have 6 total servers that run on the ESX box and the 6 servers are actually just “files” on the iSCSI box with a dual gigabit direct line in between.

VMWare ESX allows me to better utilize my server resources by manipulating how much resources one system consumes and lets me stretch my operating budget. I’m consuming no more than 120 watts altogether. Thanks to the ultra low power Core 2 Duo processors and the ultra low power HDD’s. Because of the extreme low power consumption, the servers give off less heat than a 120 watt bulb. There’s no need for me to ventilate or cool my closet because of how low the radiant heat is. I was sucking about almost 450 watts before. That’s going to make a big impact on my electric bill in the coming months.

The beige tower on the very left is my UPS unit that will hold this set up for a good 1 hour or a bit more because of the extremely low consumption.

Air Conditioning…

June 29th, 2009

I have decided to toss the entire A/C system and approach this differently. I saw an advertisment on TV the other day and it sparked a new idea. Electric A/C! WTF. I saw this cheesy commercial for the Prius that has solar panels on its roof that is supposed to help power the electronic A/C unit that it has. I was thinking, that I could probably pull this off by using some kind of window A/C or something like that.

The only obstacle I would have is dealing with the freon plumbing. Using a blower and reposition the condenser outside the car somewhere. I was thinking, holy crap, this is definitely do-able. No more robbing the engine of precious HP. Better emissions as a result. I have a 160 AMP alternator on my engine and with plenty of energy to provide.

What do you guys think?