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Old 11-20-2011, 02:39 AM   #5
Brent
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Join Date: Feb 2008
Location: Killeen, TX
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Quote:
Originally Posted by Brent Dalton View Post
Really fun weekend at Road Atlanta. A good bit of RX-7's and RX-8's. Saturday went well and I took 1st place in TTS with a time of 1:35.4 in the first session of the day. The car had more, but I was working my way into the new set up and feeling it out. My new coilovers didn't come in so I was way undersprung. This was also my first time at Road Atlanta in 7 months. I wanted a 1:33 so I decided to save my tires for the 1st morning session on Sunday morning.



Sunday the track God's made me work for my Ho Ho. First session out was the only session I was going to be able to make my goal of 1:33. So as I am pulling onto grid, another car is in my spot(3rd overall) so I just go ahead and pull into the 1 spot since I figure A.R isn't running since we are less than 1 minute out. I yell at Mark Nunally to let him know to pass me when we go out, but he says don't worry about it. Nothing but clean track, air, and opportunity. So after the warm up lap I take off and am doing my usual 85%ish lap before I do a couple as hard as I can(normally my 3rd lap is the fastest). As I am going down the back straight, I bang 3rd gear off the reve limiter(new traqmate dash is reading half the rpms... at 6000rpm's, it reading 3000rpm's)... I knew better. It walked the serpentine belt and cut my upper radiator hose spewing water onto my windshield. I back off a little, cross the start/finish line and am met with a black flag. I was expecting it since I knew I had a little water coming onto my windshield...

I pull into the black flag station and he informs me that my transponder isn't working. f@#k... I forgot to put it on. That lap was a 1:38 according to the traqmate and would have been good enough for 1st in TTS if I would of had my transponder on the car. I pull in and wait for the next session of the day. I will now have to grid last since I didn't get a time in the first session.

The second session I try to go out last. I wanted to sand bag on the back straight and try to get 20-30 seconds behind me and the last car. Didn't happen. I had a couple cars pull behind me and could not get them to pass. F@#k it, lets have some fun and carve through some traffic. Man of man, what a fun session, I was passing people everywhere. I passed a guy on the outside of 10a, in the esses, turn 5, etc... I was having an absolute ball and was really excited to see the video later. I was running low 1:40's with traffic and maybe a 39. Well, as I was just about to turn into turn 7, I hear a POP, and as I turn in, the car snaps to the right/inside of the turn. I cut the wheels left and only ended up spinning half way around(thanks to alot of luck)... which put me sitting backwards in the middle of the track staring right at a C5 Corvette. After a few cars dodged me, I was able to work my way behind one of the walls so the session wouldn't have to end early. In the process, an MR2(I think) came around the turn and went off track as I was trying to get out of the way. He drove right back on though. Soooooo, I drive the car off to the inside after the session is over and getting the go ahead from the corner worker... next to the skidpad. The tow truck driver gave me a lift back to the paddock. I grabbed one of my other wheels/tires and my jack and put them in the bed of my truck and went back to change it. Not real sure what caused it. It could of been rubbing on something in the fender well, but I doubt it. My other 17in A6 on the passenger side have no marks/grooves. I also checked my tires yesterday afternoon and their was nothing. My 18in tires are the exact same dimensions as the 17's and they also have no marks/grooves on them after 3-4 days at the track on them. I think I prob. hit some debris on the track. Once again, I was thinking that I'd like to see the video and see what happens.


You can't keep a good man down... or I'm too stupid to quit. I threw my 6 year old R6's back on in the heat of the day and prob. sweat out a gallon of water in the process and had just enough time to throw my suit back on and drive the next session. I almost sat it out because I thought I might need to rest after sweating so much and not eating lunch yet, but I wanted to have some reaction time(aka the next session) if something happened and I didn't get my time that session. Once again, I went out at the back of the pack and fought through traffic. I made a conscious effort to slow down since I was going from a really sticky set of tires to a not so sticky set of tires. I was keeping my eye on my speedo/time on the traqmate I only needed to beat a 1:42.4 to get first. After a couple of laps of pacing I got a 1:42.2. I went and got the timing sheet for the session to confirm the time and to confirm the other guy hadn't picked up any time. Back in first... and let me tell you... that was the most hard earned TT "lap" I've ever ran... haha. So I ended up getting first today by the skin of my teeth, but at this point I'll take it any which way I can get it. We had 6 in class again today so we were one shy of getting 2 hoosiers for 1st place. I'm good with 1 though.

So back to the video... I picked up the traqdash this weekend. I talked to the traqmate representative at the track as he was there with discovery parts and he told me that I just needed to put my camera into standby and when the traqmate starts timing, the camera will start recording... not the case and I don't have any video's from today because of it. Really bummed about that. I was really looking forward to editing video's this week My video's from yesterday didn't really turn out either. I'm going to have to play with this stuff between now and VIR next month so it's good to go.

Big thanks as always to Dan(Chadwick) at TweakIt for installing my new accusump after my old one was recently damaged and mounting my tires for me on a ridiculous time line.

Just talked to Matt at Penske and my coilovers are starting to come together and should be done soon if Indy Car teams will stop calling... I'm the low man on the totem pole.

I'm hoping before the UTCC to have the Penske's on, a new front splitter, maybe a rear diffuser, and the fire suppression system installed. I'll prob. have some pictures soon as well.
Quote:
Originally Posted by Brent Dalton View Post
A couple of new things:

Penske 8665 Coilovers:


New Traqdash from Traqmate(was able to get one of the first 100):







traqmate HD to overlay my data onto HD video:
Quote:
Originally Posted by Brent Dalton View Post
And a couple more of the Penske's(more info on them later):



Quote:
Originally Posted by Brent Dalton View Post


So a little information on my Penske 8665 Racing Shocks. These were built at Penske Racing Shocks in PA by Matt(who is an FD owner). The 8665 is a pretty neat little damper. It is what alot of the Rolex/Grand Am cars run and is the same shaft that is run on the high end stuff like Indy Car. It is a triple adjustable shock that all adjustments are on the top side of the car opposed to others where some adjustments are located on the bottom of the shock. Low speed compression and rebound(30 clicks of adjustment) are on the top of the shaft and high speed compression(14 clicks of adjustment) is located on the external reservoir. My starting spring rates are 900F and 750R. We'll see how they feel and adjust from there.

Two adjuster knobs on shaft:

Reservoir adjustment:


My Shock Dyno Sheet:


Bottom Mounts:


Brake box out of the car awaiting the new one to be installed:


Making a new dash due to the old one being damaged:


Trying to get a few things done to the car before the Grassroots Ultimate Track Car Challenge in a few weeks. I'm hoping to get a front splitter on the car before then as well. Week after that is a Chin Motorsports event at Road Atlanta that I'm going to be hopefully dialing in the suspension and getting some practice in. The week after Chin is NASA Road Atlanta. After that, moving to TX and heading back overseas immediately most likely.
Quote:
Originally Posted by Brent Dalton View Post
Had alot going on the last few weeks, but found a little time to get to the shop.

Today Dan worked on re-installing the pedal assembly and fabricating new hard lines that go to the brake and clutch remote reservoirs.

My pedal box was waaay out of adjustment and I was not comfortable with it once it was out of the car and we could observe it function. Dan called tilton and found the newer model that has some revisions done and appears to be a much better design.

How they mount in the car:


in the car, the pedals look nicer as well. Have to add an extension to the brake pedal to be able to heel/toe most likely.

Part number:


hardline bracket:

With lines:


with the soft lines before, they were always a pain to get bled due to always having high/low points that fluctuate. The hard lines are a way to make a linear drop from the external reservoir to the master cylinder reservoir.

I did little things most of the day like change spark plugs, beat out the sharp edge on my rear fender well, etc...

Also received my amsoil shipment. I'll be changing out the fluids in the next day or two. Pictures are for my reference so I can remember what I put in and when I changed it.



Greddy diff cover and diff cradle are on. Here's the greddy cover:


New Hawk brake pads came in. Thanks Hawk and Andrew Racing!


Rollbar reservoir mounts for the Penske's:


Penske shaft size in mm's:
Quote:
Originally Posted by Brent Dalton View Post
I like the characteristics of the stock diff. I haven't really found another one that feels that good for track stuff. The greddy covers allows an extra quart of fluid which will help it run a little cooler. It's also already tapped for a diff cooler if I decide to add one. Bill Lackey with the dry sumped LS1(450ish rwhp) melted the bearings in his last year during a race. Mine has been fine so far.

The cradle is just a little extra protection. TweakIt makes a cradle and is currently doing a group buy on it here: http://www.rx7club.com/showthread.php?t=952898 PFS makes one as well.
..
__________________
Road Atlanta August 2011 NASA TT 1:33
http://www.youtube.com/watch?v=IFY00PAK_Ps
Traqmate's video of my car from the 2011 UTCC at VIR
http://www.youtube.com/watch?v=2Zcn6...layer_embedded
Video of Yellow LS1 FD at NASA TT at VIR
http://www.youtube.com/watch?v=e6k0lJkcwrM

Last edited by Brent; 11-20-2011 at 02:49 AM.
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