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GT4/Spyder Discussions about the 981 GT4/Spyder

A well driven GT4 at Thill with video

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Old Sep 7, 2015 | 01:20 PM
  #46  
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Originally Posted by mdkim
So much for the banter of the GT4's gearing being too tall...thanks for sharing Joe!
While the gearing could be better, I think the issue has been blown out of proportion. Nobody ever complained about the gearing in the cayman GTS, boxster spyder, or Cayman R, and they are the same.

Originally Posted by Spyerx
2:04 in a boxster that is flying.
In a car that makes less than 200hp? Heck yeah.

potter is just from another planet. 11/10 always.
That's what I keep telling myself! LOL!
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Old Sep 7, 2015 | 01:25 PM
  #47  
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I have read a lot about suspension setup now what about the adjustable aero? Anyone have input of the rear spoiler or front air damn adjustments.
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Old Sep 7, 2015 | 01:26 PM
  #48  
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Originally Posted by orthojoe
Frustrating and surprising that a GT cannot get a proper track alignment without modifications. I had to modifications to the GT3 to get a proper alignment as well
You're telling me. My mechanic told me he couldn't get more than -1.6 deg camber in the rear without new toe links. But -2.5 in the front was no issue. Only if you wanted to go more did you need new parts. Makes you wonder why a regular 981 can get -2.0 camber in the rear and is still adjustable in toe. They must be limiting the GT4 by design.
Calls/emails to PCNA/PAG didn't get a reply for Porsche OEM replacement parts; even when trying to go through Vu Nguyen at PCA.
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Old Sep 7, 2015 | 03:18 PM
  #49  
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I'm pretty sure he had the cutouts removed in front and max wing in back. Effectively max aero.

Potter is really talented. I tried keeping up with him in my .2 GT3 when he was driving "7/10ths" and he was gone by lap 3. The cars are supposed to be pretty equal in abilities, unfortunately, when it comes down to driver, the abilities are definitely not equal
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Old Sep 7, 2015 | 07:13 PM
  #50  
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Nice video and good driving
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Old Sep 7, 2015 | 09:31 PM
  #51  
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Great video and action. Thanks for posting!
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Old Sep 8, 2015 | 02:11 AM
  #52  
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Originally Posted by Ochocoronas
I have read a lot about suspension setup now what about the adjustable aero? Anyone have input of the rear spoiler or front air damn adjustments.
u dont need any of that. just drive it

Originally Posted by Beantown Kman
We love orthojoe! He is definitely one of the most prolific posters here on RL. His posts are generally very informative and helpful. And he's so darn friendly, humble and nice! If you haven't been following his GT3 track build journal on the 991 GT3 sub-forum you should take a peek. With over 1,200 posts and 100,000 views, it's amazing. We are all lucky to have him among us! And how can you not love a guy with that avatar?!
hum... u must know of a different orthojoe

Originally Posted by Beantown Kman
Curious to know what the GT4 driver's impressions are of his car. He's clearly a great driver. Do you know if he is happy with the car? Is he planning to drive it on the street, too?
loves it.
it's his DD as well


Originally Posted by katmeho
Driver told me Friday that he loves the car, mostly will be a track toy and has already had lots of scraping the lip driving around NorCal. Had 600 miles on it before the two track days his weekend. Had a recaro in the drivers seat as well, he is one of us who got caught out in LWBgate. Given the talk of setup, who/where is SP Motorsports? They seemed to turn him around super quickly on the work that was done.
spmotorsport is in hayward CA.
spyerX posted site above

Originally Posted by usctrojanGT3
Do you know which toe links he used in the GT4? I'm still a bit surprised you couldn't catch up to the GT4 on the longer straights with the extra horsepower in the GT3. Btw, what exhaust were you running on the GT3? Sounds great!
tarett.
you need front tie rods too if you go big camber.
we spent several days testing all sorts of things out.

catch dave? if you pass him on straight, he will be ON your bumper the turn after. and be INSIDE your cabin if you dont yield.

i had many sessions friday lead and follow with dave. but spyerX didn't teach me how to empty the 64gb memory chip. i need 64TB. that was fun
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Old Sep 8, 2015 | 02:18 AM
  #53  
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Originally Posted by mooty
catch dave? if you pass him on straight, he will be ON your bumper the turn after. and be INSIDE your cabin if you dont yield.

i had many sessions friday lead and follow with dave. but spyerX didn't teach me how to empty the 64gb memory chip. i need 64TB. that was fun
No brakes right? Momentum driver no matter the power.

Just buy more chips. Walmart in willows had them. Delete is too much work.
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Old Sep 8, 2015 | 02:26 AM
  #54  
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Originally Posted by Spyerx
No brakes right? Momentum driver no matter the power.

Just buy more chips. Walmart in willows had them. Delete is too much work.
now u tell me!
i also had fun with mikymu z06.
in the race i cannot match the power of GTL cars. but the start and first 2 laps, i would tail gate the GTL car (also a good friend of mine) and work him hard ;-)

dave is about 2 seconds too slow this weekend.
he used his brake at turn one too much. usually he doesn't
he also failed to go off track. that's unusual for him hahahaha. so he wasn't pushing it. liklely 8/10 all weekend.
i thnk next time at TH he will clear 1:56.
i hope hoosier never make tires for him. else it's 1;54
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Old Sep 8, 2015 | 02:30 AM
  #55  
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very promising for gt4.
shows what the car is capable of when you put a reference driver in it.
every track has one (or a few) of those guys. i get out of the way too.
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Old Sep 8, 2015 | 03:01 AM
  #56  
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Originally Posted by mooty
tarett.
you need front tie rods too if you go big camber.
we spent several days testing all sorts of things out.
Can you put it on a platter for us and expound a little bit? which tie rods did you use?

Thanks
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Old Sep 8, 2015 | 02:33 PM
  #57  
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Originally Posted by mooty
u dont need any of that. just drive it


Are you saying when I go to Daytona Speedway in December I should not worry about the aero? I know you are way more knowable than me but that just seems odd. I mainly do Auto X and fully agree aero makes little difference but on Daytona Supper Speedway ? Not that I am looking to break speed records. I just wanted to see if anyone could tell the difference with making aero adjustments on the GT4?
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Old Sep 8, 2015 | 02:54 PM
  #58  
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Most drivers at our (well most here) level cannot feel aero except at the extremes. I think that is the point mooty was making. Hell I can barely feel 1-2 clicks off damper adjustment s but other drivers I know do. They are much better drivers.

I'd venture to say on a roval track that tire pressures especially that right rear and sway bars ae much more important first step over aero.
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Old Sep 8, 2015 | 07:06 PM
  #59  
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The driver of the GT4 was cool enough to send me some video from that day. I got his permission to post here

Video of the GT4 chasing me in my GT3


Video of his best lap the following day. 1:58.2!
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Old Sep 8, 2015 | 09:48 PM
  #60  
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smooth as!
momentum driver.
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