Hello Z car fans,

As ZCG gets ready to leave for the ZONC Hearst Castle Cruise, we have a Blog entry from Bill (a Z car fan and spirited driver).  He gives us a full report from his last track day at Infineon Raceway.  Have a great weekend and don’t forget your Valentine’s day card for your special someone.

Long live the Z

Rawb

The photos and videos are from Hooked on Driving’s January 27th track day at Infineon Raceway in Sonoma.

This 2003 350Z Touring model has seen a handful of track days. It started going to the track on the stock 1-piston brakes and street tires with only a few upgrades: Stillen dual exhaust and AEM cold air intake. Recently added (from ZCG) were StopTech’s small front and rear brake kits with Performance Friction 97 pads. This was the car’s first event on track tires: 245/40-18 BF Goodrich g-Force R1s on the original 18″ wheels. Track tires with tire pressure monitors! The car is otherwise stock (with heated leather seats to take the chill out of winter track days). Despite the upgrades, this is not a track-only car. After swapping back to street tires, it handles the daily commute to and from work.

Infineon is a very technical track, which is challenging but makes for a lot of fun. It has elevation changes, two hairpin turns and the famous esses. The track was wet in the morning. There were a few spins and other incidents, including this car’s slide off the pavement at turn 3a (notice the mud on the left front tire). Nothing hurt but the driver’s pride. A wet track really helps a driver learn to be smooth, a very important part of going fast when the track is dry.

The sun came out in the afternoon and speeds went up. The driver reports that the tires are great, but the StopTech brakes are amazing! With the track pads and regular bleeding with high-performance fluid, they haul the car down from speed over and over without a hint of fade; a huge increase in braking performance over the stock brakes.

This video is from the last session of the day in the intermediate group. It starts out with a few laps of lead-follow with an Audi S4. This run group started out small and by this session, many drivers had packed up for the day, leaving very little traffic. Gotta love having room to roam!

Video Part 1: http://www.youtube.com/watch?v=nv4Md5XmSpw

Video Part 2: http://www.youtube.com/watch?v=XOXHgn8PCUs

Hooked on Driving, a longtime ZONC supporter, is well known for putting on quality track events. With a strong emphasis on education and safety, it’s a great place for beginners to get started. The event prices include a catered lunch and individual coaching for beginning through advanced drivers. At noon, the coaches fire up their own cars and give beginners hot laps around the track. Big fun! Their web site, www.hookedondriving.com, has lots of information and videos for first-timers.

Even though most of this blog’s track day posts feature modified cars, a stock Z33 is a great track car if properly prepped. Track prep is not complicated. It includes checking the wheel bearings, lug nut torque, belts and hoses. It might also include replacing old brake fluid to help the brakes handle the higher temperatures generated on the track. ZCG can take care of prepping your car for the track.

Please note that in addition to providing full-service maintenance and upgrades, ZCG can also supply parts for do-it-yoursefers. This car’s StopTech brakes were sourced from ZCG and installed by the owner.

I want to start this post by saying that I don’t drag race very often and we only got in four runs.

I left the shop around 2:15pm on my solo tip to Sonoma.  I was hoping to get a better turn out of our customers and friends for the afternoon trip up to Infineon Raceway yesterday but hopefully there will be a better turn out next time.  The drive was overcast with a few sprinkles here and there but no serious rain on the horizon.

The hour and a half drive was fairly uneventful and I even pulled out the camera to take a picture as the 370 and I passed by the San Quintin State Prison on highway 580.  I pulled into the gate at Infineon around 3:45, paid my $25 racing fee (thanks to Rob for spotting me), and proceeded to wait in line for tech inspection.

The track staff, seeing that the car was brand new, waved me through without a fuss and I went directly into the “Street Performance” group’s staging lanes.  Apparently I have perfect timing because there was barely time to turn off the car and say hello to a few people before we were headed up to make our first runs.

I happened to be parked next to a ’71 2.4L turbo Datsun 510 for my first run so I was pretty excited (I own a turbo’d 510 myself, again thanks to Rob.)   I get to the water box to do my burnout and a second or two after the tires start spinning the car begins to wheel-hop pretty badly.  I cut the burnout short and roll to the lights.

Now here comes the part where you realize how little I drag race.  I’m saying out loud to myself, “Leave on the third yellow.”  I thought I did.  NOPE.  I launched the car at 5,000 rpm and I cut a .539 light.  Bummer.  The tires are cold from the crappy burnout and I leave the tree with the wheels spinning which again turns into wheel hop.  The tires spin pretty well on the shift into second again and I am on my way to turning a 14.672 @ 100.83mph.  At least this leaves plenty of room for improvement, right?

Well… our next runs would have to wait a bit because it did start to rain a bit for a total hold time of around 45min.  Now back to racing.

Over the next two runs I alter my burnout and launching techniques to get down to a 14.077 @ 101.28mph.  Now it’s time for eliminations.  At this point I am way more confident in launching the car and in my staging strategies so I dial in a 13.95 for the first round.  Now the problem is that I ended up lining up next to one of our good customers in his supercharged 350z.  This is bad for two reasons.  First, he has been drag racing for a long, long time.  Second, since we are racing each other, one of us is going to lose in the first round.

After a decent burnout, finally, we stage up and put the hammer down.  I cut a .158 light which isn’t too bad and I run through the top end with a 13.930 @ 100.45mph.  I ran faster than my dial-in time.

If you are new to bracket racing here is a very short tutorial.  You initially set a dial-in time of the fastest you think your car will run, mine was a 13.95.  The goal then is to get as close to that number as possible without going faster.  Sort-of like Price Is Right rules. If both racers go faster, or “break out”, then the person who goes over by the least wins.

So I broke out by .020 of a second which means that Walt had to go quite a bit quicker than his 12.95 dial in time to give me the victory.  He didn’t, but boy was is close!!  He ended up running a 12.933 at 104.28mph.  That means he was .003 closer to his dial in time than I was.  You really couldn’t ask for a better race.

I know that we will be going back to the Wednesday Night Drags as soon as we get a chance, and maybe someone with higher skills than yours truly will be doing the driving to make sure that we get the most out of the 370z, it should be good for low 13’s.  All I want is another piece of Walt and that supercharged 350z.

Enjoy the pictures below and click the read more for the full gallery.  Unfotunately none of the videos I took of the Zs turned out well but I will try to scan the time slips so that everyone can have a chuckle at my expense.

…[read more]