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Report from HPDE at Midamerica Motorplex

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Slow old poop

15+ Year Contributor
707
7
Jul 24, 2005
Cedar Rapids, Iowa
About twice a year, Damien de la Huerta holds an HPDE at MAM. He gets about 40 cars, charges $150 for a day, and you get virtually unlimited track time. With three groups running every 20 minutes like clockwork, you can get in one session every hour, all day long. It's perfect for a test n' tune. Here's the report.

Encounter with Thieves
We arrived at the Marriot in Council Bluffs around 9 pm, and checked into our rooms. Should we unload the suitcases or walk across the street to Appleby’s and have dinner? We decided to lock everything steal-able in the cab of the truck and the Eclipse on the trailer, and have dinner.

Big mistake.

We were gone about an hour and, when we got back, discovered that someone had smashed in the passenger side window of the Eclipse, stole all the suitcases, helmets, Brent’s camera case with a professional Nikon and lenses (About $3,000), and the Scanmaster, and were in the process of taking out the Apexi when somebody spotted them. They fled in a cloud of dust.

Bummer. The loss of personal possessions (track clothes) was not a big deal, but the camera certainly was a heavy hit. We’ll check into the insurance coverage on Monday. They got my “Rehab is for Quitters” T shirt, though, and that’s irreplacable.

Theft from hotel parking lots is a major crime problem in Council Bluffs, Iowa, because Omaha, Nebraska, is only 5 minutes away on the interstate. City police are not allowed to pursue thieves across the state line unless they are in hot pursuit of someone who has committed a major felony. Breaking into cars is not considered such a felony, so the thieves are brazen. If a cop shows up, they head for the border, knowing they can’t be pursued across the state line.

What really torques me off is that Marriott refuses to install video surveillance equipment and adequate lighting, even though they are fully aware of the problem. The Settle Inn, next door, is lit up like daylight, has cameras, and is our preferred place to stay on race weekends.

A word to the wise: Don’t leave anything in the race car or the truck overnight in hotel parking lots.

Adventures at the track

Someday, I am going to write a book about all the things that can go wrong with a DSM at a road course event, because I am going through all of them.

First, the bolts holding the turbo to the exhaust manifold loosen up, so you have to take off the heat shield twice a day and tighten the muthas. If you don’t, they loosen enough to allow hot exhaust gas to escape, melt the timing belt cover, and the melted cover shreds the timing belt. Been there, done that last year, and lost an engine because of it. So now, whilst we await a set of bolts that are being drilled for safety wire from AMS ($40), checking the turbo bolts at the track is a regular item. A word to the wise: new bolts, lock washers, and Loc-Tite do not solve the problem. Only safety wire will stop it (we hope)

Second, excessive vibration loosens EVERYTHING on the engine under road race conditions. The furshlugginer radiator cap came loose, fer Pete’s sake, and I ended one session in a cloud of steam. We safety wired the mutha, and it didn’t come loose again. (How do you drill a hole for safety wire at a race track? You take a very sharp Phillips head screwdriver, and hammer a hole in the cap)

Third, running boost for 20 minutes of WOT tends to build up crankcase pressure, and force oil out of every gasket. Toward the end of one session, I was smoking out the left side pretty bad, but it was coming from under the car, not the tailpipe. Inspection revealed that the pan gasket was leaking. Cure: we unplugged the PCV and ran the hose to a catch can. No more smoke.

Fourth, keep an eye on the dipstick. We have ours tied down with tie-wraps, but it still comes loose under high crankcase pressure. I ended one session in another cloud of smoke when the dipstick popped out. Good thing I installed a Carbontrix (sp?) hood scoop, because I saw every cloud of smoke as soon as it happened. Mike the Mechanic finally really tied it down so tight we’ll have to cut the tie wrap to check the oil. There has to be a better solution.

The final killer was another vibration-caused problem. In the final run, the starter fell out! The bolts vibrated loose, the starter fell out, shorted across the motor, killed the electric power, and I coasted to a stop on the side of the track. Back to the pits on the hook again. This time, we couldn’t fix it. One bolt is lost completely, and something or other (pronounced “sumpin nuther,” down South) shorted in the cable from the starter to the fuse box. So we put it back on the trailer and came home.

Still at 10 psi!
This is the second event in a row where we tried to increase boost from 10 psi. The last time, the manual boost controller snapped off. This time, we had a new boost controller, but the thieves stole my Scanmaster, so we couldn’t monitor knock. Mike the Mechanic did not want to kick the boost without seeing knock, so we ran it at 10 psi again.

So I decided to explore the limits of the tires and try new lines, instead. After all, that’s what a test n’ tune is for, right? With much sliding, chirping under acceleration (don’t you just love the sound an AWD DSM makes when it’s cornering at the limit, accelerating like crazy, and spinning the front tires? Only an AWD car makes a sound like that!), and flat-spotting tires, I tried corners every which way.

Mike, Jon and Brent, observing from the cheap seats, said I had an unusual line into one corner (14?) and managed to lay down a patch of fresh rubber under braking that was building up as the day wore on. I loved that line, though. It short-cuts the corner so much that I could inhale lesser cars. The boys said I almost T-boned a Z06 that was taking the conventional line. Nah, wasn’t even close. I just wanted to get his attention so he’d move over and let me by, so I let him see the Diamond Star on my hood up close and personal out his driver side window. He let me by on the next straight.

Only one really good thing came out of all the experimenting: The M Coupe that won TTB at Autobahn last month was there, and I ran with him a couple of times. I was able to hang on his bumper lap after lap, but couldn’t pass. So, if we ever get the boost up to 15 or 20 psi, I might actually be competitive at the Road America NASA event.
 
Wow, sorry to hear of your misfortunes. Sounds like you had a hell of a time. WTF

And thanks for the advice, LOL ... I'll be sure to use loctite on everything I bolt onto the block. :D

But it sounds like the track session wasn't as bad. At least it sounded like fun, anyway. Hope your next session goes better! :thumb: Maybe I can make it to the next Autobahn event ...
 
You're scaring me from putting my car on the road course. Where was all the excess vibration coming from?
 
I’m so sorry to hear about the vandalism. That pisses me off to no end and makes me a true believer in the “Dirty Hairy” kind of retaliation! In the past five years we’ve had three complete rigs (trucks with trailers) stolen from hotels at NASA events. When the police eventually found the remnants the shells were picked clean. A true heartbreak for all the money and energy put into someone’s passion… We do shifts at gas station pee breaks and have always been able to park in areas at restaurants were the truck and trailer are in full view. It’s always a PITA… and by the way, welcome to Earth!

As far as your mechanical woes, the learning curve seems endless sometimes but the passion always overcomes. I have three large plastic milk crates full of spare parts like, starter, coil, plug wires, alternator, slave cylinders, crank pulley, two sets of belts, injectors, and so-on. I have a 10-pound box of nuts, bolts, and just about every connector I can get my hands on. Everybody at the track knows about my "bolt box" and I get at least a half a dozen people at every event going through my selection. As far as tools go, thank God for Dewalt and Makita battery operated drills, saws alls, and impact guns. (Don’t leave home without them)! But even with my diversity of tools and parts it always seems I’m missing something!

It’s fantastic that you were able to deal with your problems and get the track time on the car. It’s all about testing, testing, and more testing! Unless you have the availability of a road course within close proximity of your home, it’s always a three or four-hour tow to discover your car is running good, ok, or a piece of crap
 
Man that sux!! I can't stand people like that and I will shoot them on site. The 2 national level cars in my region/class pulled out for this year because of an attempted break-in. It amazes me at the amount of lazy people out there that aren't the least bit willing to work for anything, they all should be shot.

I'm assuming you have poly motor mounts on your car?? I have a friend that has them and has things rattle loose all the time too, so now I'm scared to put them on my car as it seems to cause some of this kind of trouble.

At least you got to run the car some, more than I did at my last autocross.
 
Damn weddings.

I really wish I could have came down and met you. I am sure it will be sometime in the near future. I will have a lot to learn when I start on the road courses. Ecentually you will probably get most of your mechanical problems all buttoned up. I know when building the FSAE car at SDSM&T we spend alot of time shacking down the car so we don't have something come loose during compition.

As far as the vibration its a RACE car. Solid motor mounts, very stiff suspension, Rod Ends instead of poly bushings... These factors all cause excessive vibration. When something comes loose (IT WILL COME LOOSE) fix it right using the proper lock nut, or safety wire. Also don't reuse lock nuts on important components because they are not as secure the second use. Another little tool that helps make sure 3 threads are showing, gives a little safety if the nut comes a little loose.

I could go on for ever fasteners are the DEVIL. I have problems with them at work, and at the track. I recommend going out and purchasing Carol Smith's Fastener Book.
 
Greg Collier said:
It’s fantastic that you were able to deal with your problems and get the track time on the car. It’s all about testing, testing, and more testing! Unless you have the availability of a road course within close proximity of your home, it’s always a three or four-hour tow to discover your car is running good, ok, or a piece of crap

I am extremely lucky to have a great crew of guys (Jon, Brent and Mike) who take care of the car. I pull in with the car smoking, on the hook, things falling off and whatnot, and they fix it. I am a great believer in letting people who know what they are doing do their thing, and I just stay out of the way. I could not run these events without this support.

I pull into the paddock thinking "Oh sh*t, what did I do now?" and they rub their hands together and say, "Oh goodie, something new to fix! Isn't this fun?"

You're scaring me from putting my car on the road course. Where was all the excess vibration coming from?

I'm assuming you have poly motor mounts on your car?? I have a friend that has them and has things rattle loose all the time too, so now I'm scared to put them on my car as it seems to cause some of this kind of trouble.

Two places, probably. First, when we got the broken motor ear welded up at AMS, they replaced the front motor mount with a poly bushing. We plan to replace the rest of them with poly bushings, too. Having just one is not good. Gotta do all four.

Second, I flatspotted the tires by trying new lines that didn't work. When a line doesn't work good, you get into "Ohshit" situations that require nailing the brakes. On cooldown laps, I could feel the shake in the steering wheel, so I was getting lots of vibration from the tires.

Don't be scared of road courses. They are tons of fun. The reason I have so much trouble is that I tend to push my car very, very hard. Sheesh, I even snap off throttle pedals. You don't have to drive quite that hard.

I really wish I could have came down and met you. I am sure it will be sometime in the near future.

No more events at MAM this year. Our next one will be at Autobahn in September, then NASA at Road America in October. Why don't you cruise over for Road America? You could run in HPDE1 with an instructor at the greatest track in North America. What a way to start your road racing career!

Rich
 
Slow old poop Fourth, keep an eye on the dipstick. We have ours tied down with tie-wraps, but it still comes loose under high crankcase pressure. I ended one session in another cloud of smoke when the dipstick popped out. Good thing I installed a Carbontrix (sp?) hood scoop, because I saw every cloud of smoke as soon as it happened. Mike the Mechanic finally really tied it down so tight we’ll have to cut the tie wrap to check the oil. There has to be a better solution.

My spring lock...
 

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Greg Collier said:
My spring lock...


That's cool! We used tie wraps because my crew (Jon*, Brent and Mike) are two electrical engineers and an electrician, so tie wraps are their life. Most people use racer's tape to fix everything. These guys tie-wrap everything. If we ever un-tie-wrapped my car, it would get rid of 40 lb of plastic.

*Jon also is a software engineer, but he couldn't write a program to fix the dipstick.

Rich
 
Greg Collier said:
My spring lock...

I bet that works great! So are you going to take pictures of every square inch of your car or do I have to come out there and do it? :D

Yes, thieves suck and I would've loved to have caught them in the act. I got off pretty lucky because I decided not to bring some things. I didn't bring my camera because our friend was bringing his fancy camera. I didn't bring my tools, because Rich had his (and luckily his tools weren't stolen, because the thieves were interrupted). All I really lost was my glasses (I have contacts, but I wear my glasses between the bed and the bathroom), some clothes, a pair of shoes, a leatherman multi-tool thing, a flashlight, and my electric shaver that I wanted to replace anyway, but didn't want to spend the money on. ROFL But waiting 2 1/2 hours for a cop to show up and then going up to Walmart at midnight to get toiletries and clothes sucked. My long sleeve shirt ended up being too tight, uncomfortable, and I'm sure I looked like a complete tool. WTF

10psi, ugh! Once again we had to run at wastegate pressure. :beatentodeath: But it doesn't hurt Rich to work harder at making up the horsepower with better driving. His "tire and line testin" made for some good entertainment at the least. You should've heard the peanut gallery in the spectator stands (well, mostly me), especially at the previously mentioned ZO6 encounter. But a little more horsepower when we kick the boost is going to take this potent little Eclipse to a very interesting level. Look out TTB!

The carbontrix vent worked great with the added diagnostic benefit Rich spoke of. But we did find out it's not easy to clean oil off a windshield with anything but Windex. That fancy aerosol stuff works great on a clean windshield, but doesn't cut the oil like Windex. :thumb: But back to the vent, with it mounted right over the turbo, a ton of heat was able to escape the engine bay. I wished we'd had the Scanmaster so we could've seen the coolant and intake air temps, but the theives thought they needed it more. I'm trying to come up with a good way to mount one or two of these vents on my Dodge Stealth RT/TT now. I'm very impressed! :thumb:

For the vibration, we're going to replace the other 3 motor mounts with poly's. I also want to replace all the lock washers and blue loctite everything. Hopefully we'll get that monkey off our back soon.

Tie wraps are great. Great holding strength to weight ratio **and** they come in pretty colors. :D

I pull into the paddock thinking "Oh sh*t, what did I do now?" and they rub their hands together and say, "Oh goodie, something new to fix! Isn't this fun?"

Um, that's not what we're saying, Rich. Replace "goodie" with an expletive and I don't believe an "Isn't this fun" has been said when you get pulled in on the hook or blowing fluids out. :D It's more of a challenge-accomlishment-next problem sort of relationship that we have going on with the car. The car throws a challenge at us. We fix it, most of the time temporarily. Then it throws another problem at us. We keep going throughout the day until one of us wins. Sometimes, the car wins and we put her on the trailer for the ride home. Sometimes we win and Rich gets to keep beating on it until the track closes. What's in it for us, you might ask? Well, mostly it's getting away for a day or weekend with the guys and acting like men including driving fast, talking with free rein, and fixing problems. I don't know about anyone else, but is there anything a guy likes doing more than being able to fix something? Especially if that something is a toy that provides a lot of fun and entertainment. :cool:

I just found a modded Talon that I might buy for road-racing. I know, I know, I'm a glutton for punishment. ROFL
 
stealthTT said:
I don't know about anyone else, but is there anything a guy likes doing more than being able to fix something? Especially if that something is a toy that provides a lot of fun and entertainment.

That's what I meant by your saying "Isn't this fun?"

That was Mike the Mechanic, by the way, the best DSM/3000GT wrench in the Midwest. He, Jon and Brent keep me going in spite of everything I do to break the car.

Rich
 
stealthTT So are you going to take pictures of every square inch of your car or do I have to come out there and do it?

At this point I think just about every square inch up on the site... I've changed everything over to Poly Urethane and when I strap myself into the seat I become one with the car. If something’s amiss I can feel it deep down in my bones. I even fabricated my own rear motor mount using a Poly Urethane front mount insert. The rear mount after market inserts that they sell are crap!
 
Rich I've had good luck so far with the conical washers the 2g's come with. Heat the car up, torque the bolts down, let it cool. Mine used to come loose every other week or so, they've been rock solid for the last year after that one mod. $2 a washer so $8 total, but it was worth it.

As for the vibration of other bolts. I'm going to pick up this set eventually, but for now I just have the red loctite stick.
http://www.alliedbearings.com/new_prod/loctitestick/loctite_stick.html
 
mavisky said:
Rich I've had good luck so far with the conical washers the 2g's come with. Heat the car up, torque the bolts down, let it cool. Mine used to come loose every other week or so, they've been rock solid for the last year after that one mod. $2 a washer so $8 total, but it was worth it. http://www.alliedbearings.com/new_prod/loctitestick/loctite_stick.html

AMS finally shipped bolts that have been drilled for safety wire, so that oughta fix them. That, plus installing poly motor mounts all the way around.

Rich
 
I hate Council Bluffs, Iowa. I used to live in Omaha so I know whats its like. The only reason I'd EVER go there is to cruise Broadway on tha weekend. Im not sure which is better: Council Bluffs, or Lakeland, FL. LOL. They both suck
 
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