| MIATA BUILD |
|
|
 | |  | August 27, 2008 - I spent some time under the car last night.
An oil change, a quick nut-and-bolt check and a general under-car inspection. Remember that red PPF?
I also decided to add a bit of heatshielding. You can see the factory heat shield that I've added above the catalytic converter in this picture. It weighs next to nothing so I'm not sure why I never put this in before. Probably because it's the sort of sharp, oddly shaped piece of metal that always gets first squashed flat by accident and then eventually thrown away.
There's also some Reflectix insulation inside the transmission tunnel. It's not very visible here, but it's near the white header. I attached it with waterproof foil tape which has been very effective in other applications, but which seems to disapprove of the particular texture of the bottom of the car. So while I'm happy with the effect of this shield, a quick peek under the car when I arrived home showed that the bottom tape had separated. Shame. The material itself is pretty neat, just a double layer of bubble wrap with a Mylar coating on each side. It weighs next to nothing (a 24"x25' roll is about 3 lbs) and can withstand 180F in direct contact. That's borderline for this use but the air space will help a lot. A good thing about it for under-car use is that it's also completely unaffected by water. I'll probably end up removing it if I can't manage to adhere it. Still, given the lower temperatures in Newfoundland, the heat shouldn't be too big a problem.
entry 519 - tags: ergonomics | | | August 27, 2008 - Dyno run!
The car spent some time on the dyno yesterday, making sure that it was safe and ready to go. Jeremy at Flyin' Miata managed to pick up a bit of top-end power but more importantly he was able to confirm that everything was in good shape and ready to go.
The chart is interesting. There's a big dip in the curve at around 4000 rpm. I don't feel it when driving, but the car would be faster without it of course! Jeremy spent some time trying to tune it out but didn't have much luck. If I was building the car now, I'd probably use a VVT head from a 2001-05 Miata instead of the 1999-00 one I used. They have much better torque curves down low. But if you don't learn something over the course of a project, you're not trying hard enough.
I waffled a little bit about whether I should put this chart online as it will invariably get held up on various forums for ridicule and taken out of context, but what the heck. Here goes.
This is Janel's little blue car vs the race car. She has a Flyin' Miata Voodoo II turbo installed on a stock 110,000 mile 1.6 engine. The turbocharger itself is the smaller 2554 unit, chosen for response instead of ultimate power. Since her power level is limited by the injectors in the car regardless of altitude, I used an uncorrected chart for her. Since I'll be able to make more power at sea level (close to 20% more), I used the SAE standard correction. This chart should be accurate for the relative behaviors of the two cars at sea level. The biggest change will be that the turbo will spool up a bit quicker.
What's interesting about the chart is how similar the power curves are, once you hit 3700 rpm. Two very different ways of making power but with surprisingly consistent results. Below 3700, the big displacement of the naturally aspirated car really helps. It's no wonder people comment on how quickly it squirts out of corners, with almost full torque available at 3200 rpm. That's more important than some sort of headline horsepower number. The dip that bothers me (intellectually, I've never noticed it driving) in the race car is there in the turbo car as well, but it's not as noticeable because it doesn't have the big torque swell earlier in the range.
I've always known that I chose a more difficult way of making power. If I was using that little turbo 1.6 in the Targa, I'd be running in the Unlimited class and would have to drive much faster to avoid penalties. But really, it was an excuse to build a cool engine. I love the response of a good naturally aspirated motor. I'll do more development on the engine when I return from the race, trying to open up the breathing on the intake side and maybe swapping a VVT head on. For the race, reliability and tractability are more important and I didn't want to have to babysit a fussy mill. Focusing on the handling and suspension of the car will pay greater dividends, so that's why I spent my time there.
I'm looking forward to feeling how the race engine feels at sea level with a 20% power boost. I think it's going to be a very good tool for the job at hand - dealing with unknown roads as expeditiously as possible.
Dyno chart
entry 520 - tags: engine, dyno | | |  | August 29, 2008 - Janel and I took a First Aid course yesterday.
Both of us have had fairly extensive training in the past - I used to be a swimming instructor, her job in the construction industry opens up the option for all sorts of gruesome problems - so it wasn't a difficult thing. Still, it's good to shake the dust off those skills again.
While going through the regulations one last time to avoid problems at scrutineering, I discovered that our first aid kit (supplied by the good folks at Rallylights.com) needed to be in the cockpit instead of in the trunk where I'd mounted it earlier. Finding room for the big white box was a bit tricky, so I stuffed everything in a small tool bag. This is strapped up under the dashboard where it can be in Janel's hands in seconds, but it's out of the way. It's also less than half the weight it used to be!
entry 521 - tags: skills, preparation, safety | | |  | August 29, 2008 - Something else that showed up in the rereading of the regulations was that the car should not have antifreeze in the cooling system.
This is fairly common with race cars because antifreeze is really slippery stuff. I should have thought of that. So the coolant was drained and refilled with straight water and Water Wetter. It's a water pump lubricant (as per the regulations) that also drops the surface tension of the water to avoid spot boiling. According to the bottle it has all sorts of magical properties, and it really does work according to some testing we've done at Flyin' Miata. It's also the coolest color.
entry 522 - tags: preparation, cooling | | |  | August 29, 2008 - Preparation goes beyond working on the car.
I need to pack enough tools to deal with any job I should be expected to do, from the nightly nut-and-bolt to a rebuild of one corner of the car. But I want it all to fit in my super-cool wheely toolbox with extendo-legs so it's easy to deal with. Thanks to the recent track visits, I have a basic tool load figured out - I started taking notes about what I commonly packed so it's easy to duplicate in 15 minutes before leaving.
In this case, though, I'm also packing a smaller toolkit to go in the car. It'll include emergency tools, the sort of thing I need to perform roadside repairs until I can rendezvous with the mothership. Radiator stop-leak, a test light, duct tape (and the superior foil tape as well as electrical tape), the Holy Trinity of Miata wrenches (10, 14 and 17mm), zip ties, etc. The toolbag also includes the required tow strap. I'm apparently the first person to ask how long it should be!
So, almost ready then. I've been going through the tech inspection required before leaving, and just to be sure I changed the front brake lines which had a little damage to the cosmetic colored sheath. So I need to bleed the brakes and then cornerweight the car with the correct tool and people load in it. I'm trying to decide if I should scrub in all six race wheels or if I should just take them as virgins. Maybe I'll stop by the track on Wednesday and give them a few laps to get the initial scuffing done. But even if I do that, I'm almost ready to go. It's getting close!
entry 523 - tags: preparation | | | August 31, 2008 - Sharp-eyed readers will have noticed an addition to the menu on the left side of the page: RACE UPDATES.
Hopefully the purpose is clear! During the race, I'm planning to make regular updates on our progress. There are no guarantees that I'll find time or have the ability to do this, and it'll only happen in the evenings if I do. But I will do the best I can.
The weather in Colorado today is almost exactly the same as in St. John's - wet (I think we got half of our 6-9" of annual precipitation last night!), cool and kinda blah. I pointed this out to Janel and she said "Uh oh".
entry 524 - tags: announcements, preparation | | | August 31, 2008 - Remember how I said the weather today was like St John's?
Well, during one heavy burst of rain, I looked at Janel and said "I should take the car out and test it in this weather". She looked back and said "I'll come along". So we buckled in and backed the nice clean car out into the storm.
Unfortunately, traffic was heavy on my Targa Simulation Road and there is absolutely no place to pass on it. So we were stymied going both up and down and didn't get a chance to feel what the RA1s were like in standing water at full chat. But it wasn't without merit. First off, I learned the car is pretty resistant to hydroplaning. I wasn't able to travel too fast (curse the luck) but my best efforts were met with dogged traction. So that's good.
We also got a chance to test the defroster. Finally! It worked a treat on my side, but it blew off one of the ducts on Janel's side and was less than effective. I'd disturbed things when working on the dash light wiring a few weeks ago and never bothered to tape it all back up again properly. It's an easy fix, but an important one. Had it happened in Newfoundland, I would have have had everything needed to fix it in the car with me.
So that's a success then. I'll crawl under the car and see if my new, improved heatshield mounting held up as well - I have high hopes for it. All I did was scrape the undercoating off in that one area so there was smooth metal for the tape to grab, and I know from experience that this tape loves the smooth metal.
It's quite refreshing to be able to spend the day just poking around like this, two weeks before the start of the race. There's no big list of problems to solve or jobs to do. The car's basically ready to load into the trailer. This is very unlike normal racing practices but exactly the way I wanted it. Tomorrow, I think I'll do some painting inside the house.
I've just jinxed myself, I know it.
entry 525 - tags: preparation, testing | | |  | September 3, 2008 - Lots of detail work today.
I needed TOW stickers for both the front and the rear and I only had them on the rear. So I cut a couple out of reflective blue vinyl. Why not? They shine!
I also spent some time chasing insurance. The latest revision of the regulations require us to carry a million dollars in liability insurance. But normal auto coverage has a half-million limit. Of course, as soon as I mentioned racing to the insurance company, they got all nervous. The coverage is only for the transit sections but they were still spooked. A call to the Targa organizers and everything was sorted out quite easily. Whew.
entry 526 - tags: preparation | | |  | September 3, 2008 - I spent the day cleaning the car and doing final prep.
The last thing I did was bolt the camera mount in to place. It's about eye level so it should be pretty good for capturing the race nicely. I'm hoping to tape every competitive stage, although this particular camera can be quite ornery.
entry 527 | | |  | September 3, 2008 - So, it's Wednesday night.
I'm leaving early on Saturday - and the car's in the trailer! This seems so wrong. Race cars don't work like this. The tools and race gear are loaded up and I'm pretty much ready to fire up the truck and head east. I should probably pack some clothes other than my race suit, though.
I forgot to mention that I cornerweighted the car on Tuesday night. It was actually just about dead on. When I throw the electric impact gun in the back, it'll be perfect. The car, with about 3/4 tank of fuel, has 49.8% of the weight on the back wheels.
So that's it then. All the documentation is gathered. The car is ready. The trailer is loaded up. It's time for the last couple of years of preparation to be put to the test.
It's important to manage expectations though - while I think the car has the potential to win the event, Janel and I do not have the experience needed. The goal is to finish and bring the car home in one piece.
entry 528 - tags: preparation | | | September 5, 2008 - I'm heading out tomorrow morning, bright and early.
Here's what's bouncing around in my head. I'm still doing some last-minute prep - printing out a checklist of things to do to the car each night so that we can make sure that one of the crew does things like fill the Camelbaks, torque the lug nuts and replace the battery in the intercom.
The load of spares is a tough one. Miatas are hardy cars and I don't anticipate a lot of breakage. I have a spare set of brake pads and rotors as well as a different rear sway and a set of lower control arms in case of a big mistake on my part. But that's about it other than the usual repair parts like racer tape, electrical connectors and hose clamps.
It looks as if the ferry service to Newfoundland is running a little slow due to weather - the sort of weather that gets given a name. Right now, it appears we won't get to St. John's until 11 am on the morning of registration and tech inspection. Normally, we'd be coming into town about 4 hours earlier which is perfect. Oh well, it's not as if Newfoundlanders aren't used to weather delays. I'll get my way through it.
For some reason, all of my focus is on the drive out there, making sure I have everything and getting through scrutineering. The race? Not even thinking about it. Although I'll probably watch my in-car footage from the Kloosterman team over and over again on the trip out. I have a week to do nothing but sit in the truck and think about the race.
On the road tomorrow - here we go!
entry 529 - tags: preparation | | | September 5, 2008 - It appears that live scoring will be available through the race.
http://rallyscoring.com/results/index.htm should keep you up to date. In fact, I expect that someone reading that site will have a better idea of what's going on than I will.
To make things interesting, there are a couple of storms moving in that might bring along some weather. Storms named Ike and Josephine. Great, just what a guy who lives in the desert needs!
entry 530 | | | September 8, 2008 - We're about halfway through the long, long drive to Sydney, NS.
My friend Trevor flew from Ottawa to Denver on Saturday and I picked him up at the airport after driving over the mountains to get there. We've been making good time, mostly because we know it's going to get slower as we hit the maritime provinces. We drove within about 45 minutes of Trevor's house this evening and kept going. Nobody said this all had to make sense. The border crossing was very easy, with no lineups and just a brief explanation.
At the moment, it looks like we might make it to Sydney a day early. That'll give me the chance to pull the car out of the trailer and make sure it's happy running at sea level.
I found out that Talk Like A Pirate Day falls in the middle of the Targa this year. I can just imagine the calls over the intercom from Janel:
"Hard to port, you scurvy dog!"
"Loose the anchors, bear to starboard then full sail! Arrrrr"
Okay, maybe not. Maybe I've been spending a bit too much time in the truck.
entry 531 - tags: pirates | | | September 10, 2008 - The trip across the country was uneventful, and we arrived in Sydney a day early.
Unfortunately, we can't head over to St. John's a day early because my parents won't be coming into to town until tomorrow, but that's not really a problem. Based on the parking lot in the hotel, only one car is heading across tomorrow anyhow.
So, tomorrow I'll pull the car out of the trailer and make sure it's happy at sea level - and hopefully work any flat spots out of the tires from the car being tied down for a week.
The weather forecast is looking pretty good for the week. All the hurricanes appear to have declined the invitation to ravage the island while we're visiting. Yay!
entry 532 | | | September 11, 2008 - Testing today went smoothly.
It wasn't a major test, simply a run down the road to make sure the car was happy at sea level. And yes, it is. My biggest concern was knock, as the higher ambient air pressure at sea level means higher cylinder pressures than before. The tuning is good, though. Nothing showed up on the knock sensor at all. The 20% increase in horsepower is quite obvious, especially when the car gets on cam. The first time I ran it through the gears, I burst out with "Yeah! THAT'S my engine! Woohoo!" Followed by a lot of laughter. Yes, I'm a complete professional.
It's good to drive the car again too. The suspension feels nice and supple and the throttle response is very sharp. This is going to be fun.
So the car's good. My parents arrived this afternoon - and if I'd known to check the ferry schedules, I'd have realized that leaving today wasn't an option anyhow. Tomorrow, we get on the ferry for the long trip over and when we land, everything shifts into high gear as we go straight into scrutineering upon arriving in St. John's. Janel will be flying in and will beat us there by about 10 hours. There are at least two other racers on the ferry with us and I expect to see a number of others tomorrow.
So that's it for the pre-race. The next reports will all be on the race page. Here we go!
entry 533 - tags: engine, preparation | | |  | September 13, 2008 - After the long haul across Canada and the US, the race car was finally unloaded in Newfoundland.
The car survived the trip just fine thanks to the covered trailer - I didn't even have to dust it off. I drove it directly into the arena where registration, scrutineering and the first "car show" were taking place. The car's not very happy idling when cold at sea level, but I don't have a lot of time to mess with the tuning to fix that up right now. It pulls nice and hard though.
entry 534 - tags: registration | | |  | September 13, 2008 - Inside the arena, the most impressive aspect was the range of machinery present.
The Targa Newfoundland is a historic event that also allows modern machinery. The E-Type (or XK-E, I always forget) in is the Grand Touring class and is gorgeous. The Porsche is one of many, with BMW also very well represented. Later arrivals had to park outside and that included a number of Mitsubishis and Subarus as well as a heavily modified Challenger with an intake bursting through the hood. Yes, the new Challenger. I'll get a picture of it later when it's not completely mobbed.
I do have to say that the Miata presents pretty well. The livery gets a lot of attention - as it's supposed to! - and it's gratifying to see how many people know the car. It's a very friendly bunch.
The variety of cars and the friendliness of competitors is not a surprise. That's how everyone describes the Targa. Well, it's true.
entry 535 - tags: registration | | |  | September 13, 2008 - My biggest worry before the event was making it through scrutineering.
Missing something small (or big!) in the regulations could make for a very busy day. That's why I'd been reading them very carefully and repeatedly, and emailing the organizers with questions. The car breezed through with no problem at all. Less than 15 minutes after pulling into the arena, I was done. Wow.
Not everyone was so lucky. I saw a number of cars who had missed the labelling requirements, including a beautiful Porsche Carrera 4 with a towing arrow made out of duct tape! I took pity and gave him my spare tow stickers. I also saw a Touring-class Porsche with the driver's name written on the windshield frame in marker. Another team had a scare when they were initially told their helmets were not legal. The regulations for Grand Touring helmets weren't clearly written so they had some anxious moments.
entry 536 - tags: registration | | |  | September 13, 2008 - We're only allowed 6 tires for the event.
All of my tires were marked with a special magical orange blob as well as my car number. Eww.
The other aspect of registration was paperwork, of course. Copies of driver's licenses, competition licenses, first aid certificates, etc were traded for a big stack of route books, jackets, hats and stickers. Many stickers.
I then spent the rest of the afternoon putting stickers all over my poor car. It's not a big car, and there are a lot of sponsors involved in this race! I did my best to make sure they looked good and not just slapped on.
entry 537 - tags: registration | | | September 13, 2008 - We had the chance to get out on the roads today for a bit, calibrating the odometer.
It's going to be difficult to drive some of these roads without stopping to take pictures, as it's a gorgeous area. And we have gorgeous weather right now, sunny and warm.
Tomorrow is the Prologue. That's three stages that are not timed, to give us the chance to get into the rhythm of the race. It's exactly what we need. Janel is doing her homework, analyzing the route books and translating the tulip diagrams into her instructions. "Does this look like a sharp right at a Y, or a square left at a T?" We're discussing the distinction between "easy right over crest" and "easy right into crest". It's all well and good for me to discuss that here in the hotel room, we'll see how I deal with it at speed!
We had a reception tonight to welcome everyone. Like a bunch of nerds, we showed up first right on time. Yeah, I'm that guy. An hour later, the place was hopping. We took off right after the speeches because Janel's exhausted from a late-night arrival into town. Trevor's off in the morning after being a huge help on the drive out.
So, a good first day. The only problem we had was with a stripped screw inside the trailer jack that could not be fixed despite the best efforts of the support crew. No worries, it can be sorted when I get back home. The expected chaos and problems did not happen. The car's legal, everyone's friendly and we're all ready for the first shot at a closed stage tomorrow.
entry 538 - tags: registration | | |
|
THE DIARY