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SCCA National Qualifyer Race - US Majors Tour - Ca Speedway Fontana Jan 14 2018

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SCCA National Qualifyer Race - US Majors Tour - Ca Speedway Fontana Jan 14 2018

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Old 12-31-2017, 10:05 PM
  #16  
mark kibort
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Originally Posted by poc62 View Post
I think Mark A best 928 time was 1:39 my was 1:40 so I think you should do 1:45 and if you get into 1:43 beers on me

Joseph Fan
are you sure?? i seemed to remember Marks time in the 1:42 range , you even have a fastest race lap record of 1:43 in your cup car in the GTC-4 class. ON slicks too. with near 500hp.. and im only getting
two seconds??


http://www.porscheclub.com/wp-conten...hru-091017.pdf


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Old 01-04-2018, 04:46 PM
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Still waiting Greg for your predictions and commentary!
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Old 01-06-2018, 05:58 PM
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I believe joesphs race 928 almost hit 180mph there.......faster than his 997.2 cup!
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Old 01-07-2018, 09:28 PM
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Originally Posted by IcemanG17 View Post
I believe Josephs race 928 almost hit 180mph there.......faster than his 997.2 cup!
I think both Joes and Mark's hit near 180mph.. Mark's was a little more aerodynamic so i think it reached a little faster top end speed.
Lap times were in the 1:42-3 range. I wonder if Marks best in his White Shark was better than Joes best in the 997, at 1:42.8?
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Old 01-10-2018, 09:56 PM
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Originally Posted by poc62 View Post
I think Mark A best 928 time was 1:39 my was 1:40 so I think you should do 1:45 and if you get into 1:43 beers on me

Joseph Fan
You pull off a 1:40 or proof of that , and ill buy you DINNER!
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Old 01-10-2018, 10:22 PM
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its a pretty interesting "non turn" , that pulls about 1.5 to 1.7g for most of the cars ive seen on video running the track. 135mph to 150mph around this section after the main straight.
maybe if it had more banking , the gs would be more compression than lateral, but at any speeds over 135, it seems like all cars are actually turning.

It looks like most any car that runs , whether the top speed is 160 or 150mph, the cornering speed of the banked left is about 10mph slower. so, i think it actually is a "turn". Ill know in a couple of days though!

here is Dwain Dement, one of the top POC guys running the course on slicks in something like a cup car, running 1:42ish


Originally Posted by James Bailey View Post
Yes first time you go out on the 75 foot wide front "straight" you wonder where the hell should I be... then rolling into turn one you realize that the14 degree banking makes it an none turn at speeds below about 160 mph... accelerate out of two and suddenly ...... the sharp, very sharp left turn requires heavy controlled braking from maybe 150 mph to about 50 !!! Then the infield course is actually quite technical with many ways to screw it up. All in all a fun exercise but EASY or Simple it is NOT !!! the thought of losing it in 1 and 2 at 160 is pretty intimidating to most.
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Old 01-12-2018, 09:01 PM
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O K what is the report ???
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Old 01-13-2018, 09:01 AM
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Good luck Bro!
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Old 01-13-2018, 11:10 AM
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what time do the festivities start tomorrow?
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Old 01-15-2018, 01:24 PM
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Some of Mark's times. Friday practice best lap 150.438 , qualifying time 151.206 , qualifying race 149.597 , best race lap at a 147.693 with a sixth place overall !!!!! Very well done.
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Old 01-15-2018, 01:46 PM
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Originally Posted by mark kibort View Post
Guys i run with are in the 1:46-7s, so Ill try and be in that range.
Right on the money!!!
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Old 01-15-2018, 03:16 PM
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Great work, Mark - way to go!
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Old 01-15-2018, 04:23 PM
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Thanks Guys! What an amazing track. Now that was a LOT of fun. everyone knows that rush watching the speedo go up with the pedal mashed in 4th or 5th gear.....
I got there and was a fish out of water for the first session. got up to 150ish on the straight, and then started the turn, and dropped down to 120mph and it felt fast... the thing here is learning how the gs are off set by the downforce of the banking. eventually, you realize there is SO much more there. the rest of the track is just getting familar with braking points an pushing the car hard , but this is a rough and tumble track. Not easy on the car. lots of shifting, lots of bumps that make you pucker . when i stopped feeling sorry for the car, the times started to drop. and of course, with the old tires, the grip was terrible to start. DId some dumpster diving to fix my horrible looseness for the rears, and that helped drop the times to a 1:50...... but was waiting until all the bugs were out to use my new'ish set (5 heatcycle A7s) putting them on, and it was a different car. and much more competitive with alll the cars in the infield. however, my lowly 370hp was no match for the 450 to 550 GT2 cars in class down the main straight. eventually, not lifting into turn 1 and 2 , helped a lot and the car handled it no problem.. so did the engine, pegging off the rev limiter down the main straight in 4th gear . with a quick shift to 5th and a few seconds of WOT, i think top speed was just under 160mph.

this track is the absolute worst for braking! wow, 150mph down to 40mph, then 100 down to 40 and then 110 down to 40 and then 130 down to 40 and then REPEAT. the racingbrakes.com set up was perfect. no issues and i was going to change them out before the race, but the pads were still like new, so im going to see if i can stretch them out for a few more weekends. 3rd season, if you can believe it!

I was a little concerned about this track and the oiling issues we are all scared of. With willow springs, i didnt think it was any different than any other track, and was only a few seconds longer in any high G turn, but this was the worst of alll worlds. the engine was up at 6500rpm, being held there, and staying there in the 5500 to 6600rpm range for near 30 seconds. NO PROBLEM!

ended up i think 5th in class and 9th overall out of 25 or so starters in the race. I cant telll you how many people came over to my little area, with my Tahoe and trailer and made all sorts of comments about the 928 being out there and holding its own. flawless weekend.. all i did was put a quart of oil in the car, and change the tires a few times!

140mph at the start finish line




all in all a great weekend . definitely worth the drive down from nor cal and a ton of high Adrenalin fun!

Video coming



Originally Posted by James Bailey View Post
Some of Mark's times. Friday practice best lap 150.438 , qualifying time 151.206 , qualifying race 149.597 , best race lap at a 147.693 with a sixth place overall !!!!! Very well done.
Originally Posted by Hacker-Pschorr View Post
Right on the money!!!
Originally Posted by M. Requin View Post
Great work, Mark - way to go!



so much pick up over a session!


8 heat cycle A7s skinned, no grip!


right front skinned on the outside to cords from the banking




The 440rwhp 1st place vet


the crew



the Grid for saturdays race


old tony gaples corvette from WCGT


x wc viper 8.3 bottom end 8.4 top end

Last edited by mark kibort; 01-15-2018 at 04:47 PM.
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Old 01-15-2018, 06:27 PM
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Like I said....turns one and two are flat out no braking or drama ( unless you get forced up high into the marbles ) .... thus a none turn Plus the old very brown 928 is simply not that fast You might have had better tire wear with a bit more negative camber but Fontana is know by the NASCAR guys as being hard on tires. Glad you had a great weekend and got lots of track time.
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Old 01-15-2018, 06:46 PM
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Originally Posted by James Bailey View Post
Like I said....turns one and two are flat out no braking or drama ( unless you get forced up high into the marbles ) .... thus a none turn Plus the old very brown 928 is simply not that fast You might have had better tire wear with a bit more negative camber but Fontana is know by the NASCAR guys as being hard on tires. Glad you had a great weekend and got lots of track time.
yep, you were right. Even though i was lifting a little as i got more comfortable , it was enough to dump 10mph and with all that banking downforce, There is no way that car is going to skate outward as it is SO planted.......... next time no lift for sure!

I could tell that the "non-turn" was killing that right front! but i get it.. its still a turn, but you dont treat it as one..... would have made the lap just that much more fun. when you see the video, you will see what i mean. as far as camber, its interesting. i dont know if that would have helped (more camber) as it seems to be just crushing the outside edge..... maybe some extreme camber change might have helped. i think its just a function of the raduis of the turn, speeds and downforce.
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