FIGS/N1 Racing Finish the 25hrs of Thunderhill - Lexus IS Forum
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post #1 of 16 (permalink) Old 12-10-2013, 11:35 AM Thread Starter
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FIGS/N1 Racing Finish the 25hrs of Thunderhill

This will be a place to put all of my pictures from the event.


Well we ran a #25hrsOfThunderhill successful race and finished. We overcame so many obstacles including manufacturing our own brake pads for both OEM brakes. The front BBK was destroyed when the pads were run to the backing plate and got so hot that the pistons pierced the backing plate (more pics on that later). It was not a perfect race but we found a strategy that worked well and conserved resourced to allow a finish. We actually finished in 7th so even though we were way behind after some major pit work we were gaining ground. Our car was hit 3 times through the night and we had to do emergency repairs several times. I was not planning on working but had to step in to get VSC disabled, sport mode enabled and in the final moments re-tap a factory front caliper that was 500 degrees because the bolt fouled when we were swapping a sheared wheel stud. Thanks Mark Mcmanus Race Car Driver at N1 Racing for the opportunity to work on this team and to hopefully prove the capabilities of a Lexus in competitive motorsports. The IS300 would have set pole in out class with a 1:59 but due to the increased G's we suspect it had oil starvation issues. Outstanding experience that I will remember for years to come. Our front LCA rear bearing mounts stood up the entire race and unfortunately due to the front spring size we could not run our upper control arms. Great testing, great team and thanks to Lexus for providing all the food that kept my brain working for 2 straight days with little sleep.


Our official result

36th overall 527 Total laps 7th in class.





IS300 CAGE

IS300 block hole from side.



Last edited by Fig; 12-12-2013 at 10:43 AM.
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post #2 of 16 (permalink) Old 12-10-2013, 11:45 AM
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congrats!

so you would have run the IS300 but it had oil starvation issues? how come?
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post #3 of 16 (permalink) Old 12-10-2013, 12:05 PM Thread Starter
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congrats!

so you would have run the IS300 but it had oil starvation issues? how come?
It ran practice and due to the new G forces, we suspect it cavitated. There was a hole in the side of the block and the upper oil pan. You should see straight through it. It ran an easy 1:59 which to put in perspective, the Lexus CCS-R with the new 455HP motor ran a 1:52 best. The drivers felt like it had another 2 seconds on the table. It will be a beast next year when it gets the accusump setup.
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post #4 of 16 (permalink) Old 12-10-2013, 12:11 PM
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any details on the IS300 setup? is it the V8 supercharged IS300?
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post #5 of 16 (permalink) Old 12-10-2013, 12:20 PM Thread Starter
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It's completely na the stage 2 cam has all FIGS suspension parts plus front spherical bearings, front OEM +1 brakes with 2P rotors, RCA high steer, and stripped down to 2,800 pounds

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Last edited by Fig; 12-11-2013 at 12:46 AM.
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post #6 of 16 (permalink) Old 12-11-2013, 08:26 AM
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We sponsor this car too with one of our AEM EMS units.

Great work to the entire team and the sponsors.
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post #7 of 16 (permalink) Old 12-11-2013, 05:58 PM
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how did u get 7th in class with a hole in the block O_O; amazed at what this car can do
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post #8 of 16 (permalink) Old 12-11-2013, 06:00 PM
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amd you guys didnt even run the new figs BBK kits??
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post #9 of 16 (permalink) Old 12-11-2013, 07:01 PM Thread Starter
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The is250 was running or new bbk but ran the pads metal on metal. The pistons melted through the backing plates early in the race. The is300 is running our oem bbk with 2-p supra rotors.

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post #10 of 16 (permalink) Old 12-11-2013, 09:23 PM
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why didnt the is300 run the new BBK? i think it would have been cool to see how they hold up
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post #11 of 16 (permalink) Old 12-12-2013, 10:28 AM Thread Starter
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not in the budget Jinwoopark. The 2IS kit uses the same calipers and they had not issues with the other kit so it was not desirable to change anything. One thing in endurance racing is to minimize changes if things are working.
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post #12 of 16 (permalink) Old 12-15-2013, 06:44 PM
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Poor IS300 lol. Oh well, GE VVT-i are cheap to come by.
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post #13 of 16 (permalink) Old 12-17-2013, 11:10 PM
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dope... saw the stuff you posted up on FB as well

2005 MSM Lexus IS300

Stock?
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post #14 of 16 (permalink) Old 12-27-2013, 09:05 PM
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what kind of tires and size was the is300 running??
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post #15 of 16 (permalink) Old 12-28-2013, 10:26 PM Thread Starter
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Originally Posted by jinwoopark1992 View Post
what kind of tires and size was the is300 running??
18x8.5 255/40 18 I believe. its is all class regulated based on weight and power.
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