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heavy85

Pikes Peaks 2016

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heavy85    17

Just put it back on the ground for the first time in almost 6 months - off season in the North sucks.  Lots of little tedious details that consume time getting it back together.  Fitting the dash which involved much more than it seems like it should, moved the seat then nothing around it worked, moved from 5 to 6 point harness so had to add new mounts, etc.  Added crank scraper and baffled pan insert and took the accusump off the pressure switch to always on.  We'll see how this works out for oil control.  Otherwise just some maintenance like tightening a rear wheel bearing.  A Test and Tune day at the local autocross site next week the shake it our before the first race (NASA TT) at the end of the month.

 

Been spending more time training (that's what I tell my wife) for next year.  Bought G27 set-up and R-Factor2 to practice the course in a sim.  With 11 miles, 153 turns, and ~11 minute lap times that sucks up time fast.  Between the sim and watching literally dozens of hours of youtube in-car videos I've now memorized the course and am working on fine tuning the details.  Just bought tickets to take my sons to watch this years race.  Really looking forward to seeing it in person.

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RebekahsZ    106

Thanks for the update! I hope to finish up my fire system this weekend. My bottle is a 10# and looks smaller diameter and longer-I like your bottle better. I got all my installation instructions from the supplier. My nozzles have to be oriented vertically-they aren't to be mounted on their sides. They are a different design than yours (Im not at all suggesting that one is superior to the other-it's just wild how much the products vary). My bottle is in the package tray because my battery is where your bottle is. My safety guy also instructed me to orient my nozzles I to the foot wells facing away from the driver. He says the idea is to activate the fire system while still moving to allow time to get car stopped and let the driver bail out of a stationary car. He was very concerned that I not direct nozzles onto myself because doing do might make it too hard to see to drive the car to a stop. I've seen em installed both ways. I too love your shifter boot (from a camaro)? And I like your prop valve location. What is the yellow knob?

Edited by RebekahsZ

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heavy85    17

Yellow knob is the dual master brake bias adjuster.  My fire instructions said to put the nozzles in the corner of the windows.  I thought that would be not good at all if you wanted to see and breathe so put them towards the legs/feet as well and the over the shoulder one.

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RebekahsZ    106

The only guy I know who has been on fire is CobraMatt. My safety steward said that most fires come from the engine/firewall/dash and the flames lick backwards following the wind thru any holes in the firewall. He said that at 150mph, a tiny hole is like a blow torch. I asked if I should do anything back at my gas tank due to my stock rubber filler tube passing thru the interior of the car. He said that statistically that was a low-risk area and not to worry with it. I will be putting a nozzle on each kick panel facing in and forward to firewall. Then later this summer I will put one on each side of the radiator support facing rearward. He says the wind blows the foam backward and that sprinklers on the engine side of the firewall don't do much beneficial. They are super strict against any openings in the firewall, so I will be taking a roll of foil tape. I watched some videos on YouTube of race car fires and they were all under the dash at the driver's feet. But, none of them were crash videos-just fires that started during the course of a race. So, you can adjust brake bias both mechanically and hydraulically?

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Mikelly    115

I've been in two cars that have been on fire on track... As RebekahsZ mentioned, most are due in no small part to fluid igniting on hot motor parts.  Do yourself a favor (as I will be doing) and weld closed ALL openings in the firewall, transtunnel, or anywhere else along the driveline... Think about any fluid that will connect with HOT exhaust pipes from CV Axle grease to differential and brake fluid to trans and motor oil to wheel bearing  grease.  ANY petroleum based fluid will ignite with enough heat and I've seen heat as high as 800 degrees on brake rotors/calipers/wheels.  So keep all that in mind.

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heavy85    17

Still working on it.  Two boys and I flew out to watch the race in June.  Incredible event.  May delay a year or two past 2016 but still definitely on the bucket list for the not too far future.  Been mostly doing maintenance like replaced clutch and hydraulics, etc and continue to play with aero.

Last weekend trekked 1580 mile to Pa and back for the Duryea hillclimb.  That is an intense hill ... 132 mph at the finish.  Still some seconds left in the car but still good for 8th out of 110 cars.  It will take full commitment and no margin for error to get there though.  If I dont do the PP next year likely to go back.

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heavy85    17

King of the Hill at the 'Chasing the Dragon' hill climb a few weeks back.  Didnt get the laptime I was looking for but able to FTD for the weekend and get the sweetest trophy ever - a full size sword.  Company cutbacks and according plummet of stock prices has PP in question for next year.  We'll see over the next couple months.  Regardless plans for update to fuel cell and rebuild the trans w/ faceplated gears over the winter.  Last race of the year next weekend so will get torn down soon.

 

https://youtu.be/aY9ksFVdifA

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heavy85    17

Nice run.  What time you were hoping to get? Sorry to hear that PP is looking less likely to happen.  It would be great to see it come together.

 

Cary

 

Thanks.  Class record is 117.1, my previous best was 117.3 weekend only got down to 117.5.  Was hoping to beat the class record. Kicker is previously I was on used R6 and upgraded to A6 specifically just to beat the class record but not to be.  On subsequent runs kept slowing down and eventually found both rear tires showing cords so maybe the tires were gone.  Only had about 20ish runs by then.

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heavy85    17

Still kickin. PPIHC is definitely going to have to wait a year or two but still making the best of 2016. Transmission is strapped to pallet ready to ship for a rebuild. T/C rod conversion to rod end is complete. Diffuser is mostly complete. Front end aero redo is almost complete. Singed up for Ultimate Track Car Challenge at VIR in May.

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heavy85    17

The new front end for whatever reason makes the engine run much cooler. Its what you see plus the splitter was extended back maybe 8" to right up against the crossmember. Has always been sealed and ducted to the front but now pretty much run at the stat setting instead of the low 200's before. Ran Gateway in St Louis which was more fun than i expected then UTCC and NASA TT at VIR last weekend. VIR was even more challenging than I epexpected and only ended up with a 2:04.5 lap time well off the target 2 flat. The UTCC was really not much of an event with only 35 cars and didnt feel any different than a TT. After the UTCC I found the right rear gland nut to be completely loose alowing the strut to slide up and down in the spindle. Then Saturday the spindle itself snapped and caused wicked loose condition but got luckly and made it onto the trailer with no other damage. The new 3.54 / tuned OS Giken worked really well. Now need to replace upright and figure out rest of season.

Edited by heavy85

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heavy85    17

So ended up participating in the Grassroots Motorsports UTCC at VIR (13 hr drive).  UTCC was a waste of time and money but stayed for the NASA TT over the weekend.  VIR is an incredible track - very challenging.  Hit 150 mph on the back straight but fought the car all weekend.  A rear gland nut came out so the strut was just sliding in the upright.  Wicked vibration in the front end.  Then cracked a rear spindle so went home early.  First DNF ever in nearly 10 years of racing this car but at least I noticed it and came in before bad things happened.  Really disappointed to only manage 2:04 but with car issues and traffic never really figured out the track.  Regardless VIR has to be a bucket list track for anyone.

 

From this realized that Z parts are getting hard to find.  Replacement spindles were not anywhere local and ended up spending more in shipping that the parts cost but now have in hand and half of them on the car.  Been fighting a front wheel that was chronically loose and finally found the outer bearing surface was worn on the spindle itself.  So upgraded to much beefier 280Z parts and installed one front and one rear new upright.  The other corners will have to wait for winter project. This shot the meat of race season so missed a couple races.  But thanks to encouragement of wifey just got back from another 13 hr drive to Pa for the Giants Despair hillclimb.  It was really run and well worth the drive.  Ended up first in class and 9 out of 108 overall.  There were like Indy cars and stuff here so some REALLY FAST cars.  I really enjoy hillclimb - by far my favorite type of racing.

 

I'll have to come back and add the video - for some weird reason my computer wont currently paste?

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heavy85    17

So, you broke a second spindle? Or are you referring to the earlier spindle breakage?

Just one rear. But the found that the bearing race one front strut was wallowed out so bad it cause vibration so change it too.

Edited by heavy85

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RebekahsZ    106

You know as well or better than me, but is your suspension bottoming out some? Would some bump stops promote component longevity? Those are hard dips on those courses! I sure don't have the balls for that. I still fly off into the grass with regularity.

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heavy85    17

Weatherly hill climb last year.

 

 

Then ended up last minute trip down to Road Atlanta in December where managed a 1:34.  With the move this year Pikes Peak is still year(s) away however am now planning for Mt Washington in July.  Had to add three bars to the cage but that's done.  Need to figure out how to make the fuel pump automatically turn off when the engine dies and then should be legal.  It's a really, really yumpy road with one mile of total seven mile race distance being gravel.  Trying to figure out springrates as they say to run soft but am worried with bottoming.  It's going to take a long time to memorize the road but that's in progress now.  Mt Washington is one of the oldest races in the country and one of the most challenging hillclimbs anywhere.  Should be fun.

 

http://mtwashingtonautoroad.com/climb-to-the-clouds

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