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Best Track Times in a GT4

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Old 08-15-2017, 03:59 PM
  #841  
kfmcmahon
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Originally Posted by provoste
Nah, Ferrari Challenge runs 255/305 P Zero slicks in 19's. I've been using them as take-offs, they're AMAZING
so what wheels do you have them mounted on?
also where do you buy the tires as take-offs (I'm assuming they are scrubs from qualifying?)
Old 08-15-2017, 04:31 PM
  #842  
Inrev
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2:22:7 Calabogie Motorsports Park
RE-71R, Ferodo DS.1.11, RSS front toe links, thrust arm bushing, monoballs, TPC toe links.

Last edited by Inrev; 08-22-2017 at 03:52 PM.
Old 08-15-2017, 07:41 PM
  #843  
BillC3
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Well, I didn't quite catch Chris this past weekend at Summit Point, but I did get a new personal best: 1:20.44, only .09 seconds behind him. I didn't remember to hook up my phone to record until Sunday, so I don't have any times for the Saturday runs, which might have been better.

I'll get him next time!


Car is the same setup as last time: 19" Forgeline wheels, RE-71R tires, DSC box, alignment and max stock aero.
Old 08-15-2017, 10:01 PM
  #844  
provoste
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Originally Posted by kfmcmahon
so what wheels do you have them mounted on?
also where do you buy the tires as take-offs (I'm assuming they are scrubs from qualifying?)
Running OZ Leggera's 8.5 & 11 19". I was hesitant at first to run the 255 on an 8.5 but was assured by a good friend that the 255 P Zero slick is a pretty narrow 255. He's right, the fronts are very well supported (wheels knock pavement when placed on their backside). I've had great luck with John Berget Racing, he buys take-offs from many many series. My last set, lasted 26 HC's and gripped till they corded. The tires are amazing, elastic friction circle, and very communicative. All for $120 per tire.
Old 08-15-2017, 10:03 PM
  #845  
provoste
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Originally Posted by GeoJoe
Congrats and good to meet you at Road ATL!
You've been to too many tracks in the last few weeks Joe---We met at NCM!!! Back acha!
Old 08-15-2017, 10:20 PM
  #846  
Manifold
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Originally Posted by BillC3
Well, I didn't quite catch Chris this past weekend at Summit Point, but I did get a new personal best: 1:20.44, only .09 seconds behind him. I didn't remember to hook up my phone to record until Sunday, so I don't have any times for the Saturday runs, which might have been better.

I'll get him next time!

https://vimeo.com/229759404

Car is the same setup as last time: 19" Forgeline wheels, RE-71R tires, DSC box, alignment and max stock aero.
Well done! That's fast for a measly GT4 with those tires. I'm gonna need to be on it to keep you off my bumper in the GT3.

Having compared the GT4 and GT3 back to back on track, I do think the GT4 needs some alignment, etc. to extract it's potential on track. In stock form, I find the GT4 a bit 'lazy' in the sense of being slow to the tell the driver what it's doing, and then slow to react to inputs. The GT3 seems a lot more buttoned down to me.
Old 08-15-2017, 10:51 PM
  #847  
kfmcmahon
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Originally Posted by provoste
Running OZ Leggera's 8.5 & 11 19". I was hesitant at first to run the 255 on an 8.5 but was assured by a good friend that the 255 P Zero slick is a pretty narrow 255. He's right, the fronts are very well supported (wheels knock pavement when placed on their backside). I've had great luck with John Berget Racing, he buys take-offs from many many series. My last set, lasted 26 HC's and gripped till they corded. The tires are amazing, elastic friction circle, and very communicative. All for $120 per tire.
sweet, those are the exact wheels I have...will have to look into this ASAP
Old 08-15-2017, 11:06 PM
  #848  
GeoJoe
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Originally Posted by provoste
You've been to too many tracks in the last few weeks Joe---We met at NCM!!! Back acha!
Hahaa... oops, I meant to congratulate sportlife2012 on beating my lap time at Road ATL!


Originally Posted by sportlife2012
Best lap times at Road Atlanta in Porsche GT4: 1:35:46
Mods: camber/toe and slicks
Nice work Joe. Gotta get me some of those tires...
Old 08-16-2017, 12:52 PM
  #849  
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+1 on John Berget .

And yes the Pirelli DH slicks are fantastic, predictable, and long lasting.
Old 08-16-2017, 02:39 PM
  #850  
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Originally Posted by BillC3
Well, I didn't quite catch Chris this past weekend at Summit Point, but I did get a new personal best: 1:20.44, only .09 seconds behind him. I didn't remember to hook up my phone to record until Sunday, so I don't have any times for the Saturday runs, which might have been better.

I'll get him next time!

https://vimeo.com/229759404

Car is the same setup as last time: 19" Forgeline wheels, RE-71R tires, DSC box, alignment and max stock aero.
Hey Bill, nice meeting you. I had a great time running with you and the Potomac PCA over the weekend. Really wish I had gotten some lap times. Pretty sure I did some sub 1.20's chasing the white 996 GT3 cup car. Always helps to have a rabbit out in front to chase.
Old 08-16-2017, 05:36 PM
  #851  
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Originally Posted by Mylesd55
Hey Bill, nice meeting you. I had a great time running with you and the Potomac PCA over the weekend. Really wish I had gotten some lap times. Pretty sure I did some sub 1.20's chasing the white 996 GT3 cup car. Always helps to have a rabbit out in front to chase.
Hey Myles, nice meeting you too. That was fun, chasing each other. Hopefully I'll see you out there again soon. I'm pretty sure I had some sub-20's on Saturday as well, but forgot to hook up the phone, so no proof (oh well....).
Old 08-17-2017, 01:12 AM
  #852  
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Originally Posted by BillC3
Well, I didn't quite catch Chris this past weekend at Summit Point, but I did get a new personal best: 1:20.44, only .09 seconds behind him. I didn't remember to hook up my phone to record until Sunday, so I don't have any times for the Saturday runs, which might have been better.

I'll get him next time!


Car is the same setup as last time: 19" Forgeline wheels, RE-71R tires, DSC box, alignment and max stock aero.
Well done!!! That's awesome driving!!! Competition heats up!!! Let's all try to make the next Summit weekend. Would be great to all meet (and me selfishly learn more). Chris was at Summit couple weekends ago with Chin. Not sure if he achieved a new PB on Sunday - I only did Saturday which he did a 1:21 with an extra 180lbs riding shotgun
Old 08-19-2017, 02:15 PM
  #853  
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AutoQuest Motorsport (driver/owner Gavin Riches) has been busy at Road America and Sebring over the last year testing and tuning our MultiLink Rear Suspension and some other AQM goodies for the GT4. Here are two of Gavin's impressive lap times, and we expect to knock off another nice chunk of time with our upcoming Shorter Final Drive Ratio.

Sebring - 2:17.5 - Pirelli Slicks - Post #8

Road America - 2:25.8 - Hoosier R7 - Post #8
Old 08-22-2017, 12:27 PM
  #854  
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Default The Ridge Motorsports Park, Shelton, Washington

Got a clear track for a while before it got too hot and got a couple of personal bests, 1:53.21 was the fastest. Moved the wing and removed the inserts for max aero this time, and also changed the rear sway from full stiff to medium. Seemed to keep the back end settled down when doing that quick braking before bending into turn one. Felt much better, was able to keep much higher speeds through there.

Tires are RE-71s, now completely shot but they had a good life ;-)


Old 08-23-2017, 02:29 PM
  #855  
Chris Hebert
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Originally Posted by GT4Tony
Well done!!! That's awesome driving!!! Competition heats up!!! Let's all try to make the next Summit weekend. Would be great to all meet (and me selfishly learn more). Chris was at Summit couple weekends ago with Chin. Not sure if he achieved a new PB on Sunday - I only did Saturday which he did a 1:21 with an extra 180lbs riding shotgun
Great run Bill - too close for comfort!!

As far as the CHIN event - I blew 3rd gear on Sunday's 1st session. Not sure when transmission replacement will complete, but I would like to do one more Summit event before the season ends.

I agree with Bill/Myles - 1:19 is definitely doable in the GT4 at Summit - some fresh tires, clear track and cool but sunny weather - and it's gonna happen. (Hopefully in 2017 if I can get the tranny replaced quick enough).

Also Bill/Myles/Tony/all - you guys PM me if you are doing VIR or Summit so we can do some follow the leader.


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