[vnarma]

Just back from my second visit to the Glen, and first for the 968. Car was wonderful, and enjoyed the three days. Did a 2:28.2 on NT-01s Curious to see what more experience 968 drivers do at the Glen. Need a compariable goal to work towards. My data is via Traqmate.



There were some six 968 up at the Glen this with the NNJR-PCA, hoping a few of you were data acquisition equipped.

Partial Post: Please Login or Register to read the full post.

[Jim Child]

PCA F Stock 968's run 2:14 to 2:16. I don't know what your prep level is, but anything under 2:20 is pretty quick for a 968 at the Glen.

Partial Post: Please Login or Register to read the full post.

[H2Ojazz]

I was there, no data, but ran my fastest yet with a great instructor (Jim Briggs from Ohio) He had me passing some significantly faster cars. Unfortunately when I was signed off I became significantly slower! <img src="/forum/images/smilies/968/blink.gif" class="smilie" alt="" /> It looked like Pablo was running some fast laps with a car prepped by Pete.



Great event!

Partial Post: Please Login or Register to read the full post.

[Apex Rex]

Vaino, with your cars prep level I would say that the car is capable of running high teens. There are a lot of little things at the Glen that add up to big differences in speed. Hopefully my car will be ready for NNJR's WGII event and I might be able to get you some times for a nearly stock car.

Partial Post: Please Login or Register to read the full post.

[pmcrespo]

What an awesome weekend indeed! Outstanding to see all of us running the 968s at speed and all looking great.



Vaino; I am no expert in lap times but you certainly looked very well out on the track the few times I was able to watch you. I may have some video and pics I'll try to post later.



Bill: Congrats on your signoff! Its great to see you drive so well! Cheers!



Indeed, Pete was out in full force and helping me shake down the car (and driver!) he has been building (I think we are finally on the right path to get him back out on the track more consistently - has something to do with the right breakfast sandwiches!) . I did not have a data system so no idea on lap times. But the car was running very strong for its first outing and given the slow rookie driver. The car is probably good for great laps but then again, I may have been able to pull a lap every 5 minutes! :-). I will start a thread when I have a chance to track the progress of the car (and driver) with the goal to see another 968 representing in NASA and PCA Northeast and Mid-Atlantic races by early 08.



Maybe Pete will let me get a Traqmate by next outing if I beg enough :-(



Pablo

Partial Post: Please Login or Register to read the full post.

[Jason Judd]

On a good day, I've done 2:13...but not consistantly lap for lap.



That my car has a good deal more power than a stock 968 makes most of the difference...As you know, the Glen does reward the higher HP cars.



Only once I'm consistant with my lap times in the low teens, will I even consider taking credit for it...



Jason

Partial Post: Please Login or Register to read the full post.

[flash]

waaaaah - i wanna come out and play - stomp stomp stomp



oh well, maybe next year

Partial Post: Please Login or Register to read the full post.

[vnarma]

I was assuming, based on the data I see, that given a clean, low traffic run, I'd be in the 2:24/2:25 bracket. A little more speed into turn 1, and Turn 10, and maybe into the carosel (May try the inside line there), I'd be able to break 2:20. Don't know yet if I'll make NNJR WG2, will likely go up with NASA/PDA mid Oct. Hoping to work on those segments.

Partial Post: Please Login or Register to read the full post.

[Jim Child]

Make sure you're going flat out from turn 1 all the way to the bus stop. No lifting in the esses. There is also tons of speed to be gained in the bus stop. Make sure you're not overslowing the car as you brake for the it. You can carry tons of speed into and out of the bus stop. There's also lots of speed in the carousel. Once you get the car turned in the banking will support full throttle all the way to the brake zone for turn 6. Try not to overslow the car for turn 6. For turn 10 you only need a lift, or a very small brush of the brakes. Don't brake hard for the corner. If you do all of those things you will see a sub 2:20 lap.

Partial Post: Please Login or Register to read the full post.

[vnarma]

[quote name='Jim Child' post='40267' date='Aug 22 2007, 03:47 PM']Make sure you're going flat out from turn 1 all the way to the bus stop. No lifting in the esses. There is also tons of speed to be gained in the bus stop. Make sure you're not overslowing the car as you brake for the it. You can carry tons of speed into and out of the bus stop. There's also lots of speed in the carousel. Once you get the car turned in the banking will support full throttle all the way to the brake zone for turn 6. Try not to overslow the car for turn 6. For turn 10 you only need a lift, or a very small brush of the brakes. Don't brake hard for the corner. If you do all of those things you will see a sub 2:20 lap.[/quote]



Jim,

Thank you for the feedback. I'm entering Turn 1 at 59mph, and accelerating out to turn 2. I hit turnin for Turn 2 at 90mph, I am flat out from turn 2 to the braking zone on the bus stop. I'm tight up the right side I hit the beginning of the straight at 114mph after the Esses. I find if I take Turn 2 too hot (95mph), I end up to far left to get a good line up for the Esses. I'm only able to pull 1.3G in the corners max. From Turn 2 on I'm quite happy through the Esses. Use this as my lead up to pass cars on the straight before the bus stop. Catch a car or two every time. Topping at 125mph. Need to brake about a car length later, and I'm about 5 mph too slow through the bus stop, and 8 mph too slow carousel (Maybe more, need to work on it). I carry speed well through the chute, and into the toe (105mph before braking). Turn 6 is a favorite, where I can catch folks on the straight after. General get the drop on most cars here. Turn 10 is weak, this will be my primary focus of improvement. Line is good, just WAY TOO slow. I'm only drifting out 3/4 of the track. Losing a full .75 seconds through here alone. Car can certainly carry far more speed. Turn 11, on the straight, will also need a bit more speed. Overbraking this turn.



Going through my Traqmate data, and my video, I have an action plan for the next event. Each segment has areas of improvement. Some bigger than others.



Curious. What tires and brake pads are you running? What kind of G's are you seeing? I peak corners at 1.3G, and braking is 1.18G. Tires NT-01, and brakes Hawk HT-10s on 928S4 rotors/brakes. Stock roters/brakes rear. 928 Brake Bias valve.

Partial Post: Please Login or Register to read the full post.

[Jim Child]

[quote name='Vaino' post='40301' date='Aug 23 2007, 05:36 PM']Curious. What tires and brake pads are you running? What kind of G's are you seeing? I peak corners at 1.3G, and braking is 1.18G. Tires NT-01, and brakes Hawk HT-10s on 928S4 rotors/brakes. Stock roters/brakes rear. 928 Brake Bias valve.[/quote]



I run Hoosiers and Hawk HT-10 pads. Last time I was at the Glen was in 2005, and I may have been using Pagid Blacks at that time. I don't have data in my car, so I can't give you exact speeds and G's. My car is maxed out to the PCA F-Stock rules, with double adjustable suspension, etc. running at around 3,250 lbs with driver. My best time from 2005 is a 2:16. I'll be disapointed if I can't get into the 2:14-2:15 range with the car in its current trim the next time I go.



Lifting for turn 2 is killing your times. Going flat through there is worth at least a couple of seconds. You say if you hit turn 2 too hot you end up too far left to line up for the esses properly. There are two ways to fix that. First make sure your line into turn 2 takes full advantage of the banking in that corner. Walk the track if you get a chance, and you'll get a full appreciation of how much banking there is there and where you have to be to hit it best. Walk through the corner and turn around and look back at it. Second, if the car is understeering in spite of being on the right line, then try to dial it out. Try stiffening the rear a little bit with whatever adjustments you have available.



Going flat through that section the first time is a real white knuckle ride, but after you do it once it becomes much easier. Its one of my favorite sections of track anywhere.

Partial Post: Please Login or Register to read the full post.

[vnarma]

[quote name='Jim Child' post='40303' date='Aug 23 2007, 02:14 PM']I run Hoosiers and Hawk HT-10 pads. Last time I was at the Glen was in 2005, and I may have been using Pagid Blacks at that time. I don't have data in my car, so I can't give you exact speeds and G's. My car is maxed out to the PCA F-Stock rules, with double adjustable suspension, etc. running at around 3,250 lbs with driver. My best time from 2005 is a 2:16. I'll be disapointed if I can't get into the 2:14-2:15 range with the car in its current trim the next time I go.



Lifting for turn 2 is killing your times. Going flat through there is worth at least a couple of seconds. You say if you hit turn 2 too hot you end up too far left to line up for the esses properly. There are two ways to fix that. First make sure your line into turn 2 takes full advantage of the banking in that corner. Walk the track if you get a chance, and you'll get a full appreciation of how much banking there is there and where you have to be to hit it best. Walk through the corner and turn around and look back at it. Second, if the car is understeering in spite of being on the right line, then try to dial it out. Try stiffening the rear a little bit with whatever adjustments you have available.



Going flat through that section the first time is a real white knuckle ride, but after you do it once it becomes much easier. Its one of my favorite sections of track anywhere.[/quote]



I got a copy of a friends 2:20 traqmate data from the same day. I am losing some time through turn 2, but more distrubing is the time lose through bustop into the carosel. Looks like I lose a full 4+ seconds in the section, and about 1.5+ seconds from the slower turn 2, and an 1+ second from turn 10 (fast left hander). This will likely add up to more than the 6.5 seconds, and should help get me into the sub 2:20 range. I'm really looking forward to making up these differences. Sad, I looked at my videos from my prior visit, in the 924S, and I'm flatout through Turn2. <img src="/forum/images/smilies/968/blink.gif" class="smilie" alt="" />

Partial Post: Please Login or Register to read the full post.

[JAM]

I just came back from two days at WG with Metro NY.

That was my first time at WG. What a track! Awesome! Really a world class venue.

Perfect blend of fast and slow turns with quite long straights in between.



Now, talking about those straight runs, especially from the esses to the bus stop. Do you guys up-shift to 5th on that straight or you sort of coast in 4th at the redline? I am redlining 4th at 7k roughly half way into the bus stop after flat out in 4th through the esses.



What tires and pressures are you guys running? I've been experimenting a little with different pressure settings for my street tires, Michelin Pilot Sport A/S but it makes no difference. They understeer and sing so loudly especially in turn 6 and 7 that I feel myself blushing. <img src="/forum/images/smilies/968/ohmy.gif" class="smilie" alt="" /> My instructor says I need a dedicated set of race wheels and tires. Oh well, another expense. <img src="/forum/images/smilies/968/rolleyes.gif" class="smilie" alt="" />



Just before the event I changed brake pads to Pagid 4-2-1. What a difference from stock compound which, as I found out at Pocono, was fade prone.

Unfortunately they produce copious amounts of dust, especially when worked hard. But they have awesome clamping power.

Partial Post: Please Login or Register to read the full post.

[Jim Child]

I always use 5th gear, and then downshift to 4th for the Bus Stop. If you're using street tires, try 40 lbs hot pressure. Start around 32 cold, then bleed down to 40 lbs after your first run if necessary.

Partial Post: Please Login or Register to read the full post.

[H2Ojazz]

5th on the back straight. I am not quite up to flooring it thru turn 2, although I do in the esses. I stay in 4th on front straight.



My goal next event is much more speed outta turn 1 thru 2!

Partial Post: Please Login or Register to read the full post.

[Jason Judd]

JAM,



You had the black coupe, right? If so, it was nice to meet you!



Tire pressures on very hot days, like we had this past weekend, were critical. I started my Hoosier's at 30 lbs, and they got up to 36 lbs pretty quickly. As the day wore on, I had to bleed out air to keep them in the 36-37 lbs range...



Jason

Partial Post: Please Login or Register to read the full post.

[JAM]

Jason, it was a pleasure to talk to you. I was hoping for a ride in your car but you went home earlier. <img src="/forum/images/smilies/968/sad.gif" class="smilie" alt="" />

Maybe next time.



I guess I bled too much then, I went down to 38 hot.

I heard someone from the red or black group saying that one way to tell you have the correct pressure is when the wear pattern approaches the tip of the triangles , or in my case a head of little michelin man, distributed evenly around the perimeter of the tire. That indicates the use of all thread surface.

I was shooting for that but never quite reach it even though they rolled quite a lot.



Next time I"ll try 5th up to the buss stop, then follow in 4th through 5 and 6 and then downshift to 3rd for the toe. It makes perfect sense to use taller gears given that our engines make nice torque already at 4k rpm. No worries about over revving the engine.

The only problem is the execution of heel-toe during downshifts. Sometimes its quite jerky. Need more practice.



I want to sign up for Pocono North on Oct 5th and 6th.

Any of you guys are coming?



Jerry

Partial Post: Please Login or Register to read the full post.

[Jason Judd]

Jerry,



Yes, I went home because my car was running hot...We're moving the aux oil cooler from its current location [which is in front of the radiator and blocking any cool air going to the radiator!!] and that should solve the problem.



I'll be at the Sept 7-8 event at Limerock...and it's MUCH more interesting than Pocono [pick-yer-nose] raceway.



See if you can go to that one instead!



Jason

Partial Post: Please Login or Register to read the full post.

[Nine68]

Hey Jim, Hope all is well, where do you buy the Hawk Pads from and how do they compare to Pagid Blacks? Thanks!!!

Partial Post: Please Login or Register to read the full post.

[Jim Child]

[quote name='Nine68' post='40645' date='Aug 31 2007, 11:43 PM']Hey Jim, Hope all is well, where do you buy the Hawk Pads from and how do they compare to Pagid Blacks? Thanks!!![/quote]



I get my Hawks from raceshopper.com, but there are tons of Hawk dealers out there. I used to use Pagid Blacks, but my last two sets caused material transfer and lethal brake judder despite careful bedding. The Hawks are extremely user friendly. They work great right out of the box with no complicated bedding process. I find that they perform as well as the Blacks.

Partial Post: Please Login or Register to read the full post.