MOTORTREND on the GT4!
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Joined: Jul 2007
Posts: 2,887
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From: Ormond Beach, FL
Agreed. Softening the front bar and stiffening the rear will only get you so far. The front needs to be made more "positive" by adding camber and adding some to the rear will help the car rotate in slower corners.
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Joined: Oct 2003
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From: S. California
Key note here on track time; Streets of Willow is a smaller, tight track, so it would be ideal for the Cayman GT4 as some of those cars behind it would not be able to fully use their power. Regardless surprised to see it beat the 458 on the Streets - that is saying something.
Much of the footage was shot on Big Willow (adjacent track), where it likely would not have faired as well to the higher HP cars behind it in lap time. Big Willow is a high speed track and HP really makes an impact.
I would like to see its lap times compared at Laguna Seca, where both aspects are rewarded - corner speed and straight away speed. This track will better show where it fits in with other world class cars. My guess is for the money you won't find a better car period!
Much of the footage was shot on Big Willow (adjacent track), where it likely would not have faired as well to the higher HP cars behind it in lap time. Big Willow is a high speed track and HP really makes an impact.
I would like to see its lap times compared at Laguna Seca, where both aspects are rewarded - corner speed and straight away speed. This track will better show where it fits in with other world class cars. My guess is for the money you won't find a better car period!
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From: S. California
But you may also recall AP mentioned to CH when the car is up in the air later in the video and CH mentions set up that AP states "well you like a oversteer set up" (not exact words but that was the message). So he is maintaining stock setting as being good (maybe all around better for typical driver on public roads).
Drifting
Joined: Sep 2007
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From: Texas
But you may also recall AP mentioned to CH when the car is up in the air later in the video and CH mentions set up that AP states "well you like a oversteer set up" (not exact words but that was the message). So he is maintaining stock setting as being good (maybe all around better for typical driver on public roads).
I imagine everything is not loose enough for the current state of car reviewers. Fun to watch, but few chances in real life to drift a GT car at will. Instant black flag at most DEs.
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Joined: Sep 2003
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From: Los Angeles, CA
Randy Pobst is a professional driver though and he thought it understeered a bit as well.
I recall some reviews stating that the 981S X73 had turn in understeer. Perhaps with the amount of power of the GT4, Porsche wanted to make sure it has stability on corner exit. I also wonder with the strut rear suspension, whether understeer was the preferred handling balance to prevent any sudden oversteer. Who knows.
I recall some reviews stating that the 981S X73 had turn in understeer. Perhaps with the amount of power of the GT4, Porsche wanted to make sure it has stability on corner exit. I also wonder with the strut rear suspension, whether understeer was the preferred handling balance to prevent any sudden oversteer. Who knows.
Burning Brakes
Joined: Feb 2015
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From: Edmonton, AB
Interesting calculation they did r.e. the gearing. Apparently, if 1st and 2nd were geared for 35 and 65 mph, 0-60 should end up at around 3.5 seconds! As it is, the quarter mile time (12.3 @ 115 mph) is pretty stellar. I know it's not a drag car but, still, more torque to the rear wheels could only help lap times (even with more shifting).
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Drifting
Joined: Mar 2015
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From: Austin, TX
Interesting regarding the understeer, there is one other clip where the car is understeering quite a lot (lap of Magny Cours) but in most reviews it is not mentioned at all.
So, is it a setup issue (Motortrend claimed Porsche tried to adjust it but it was still not perfect) or maybe it is sensitive to tire wear? If it was a common treat of the car, one would think it would definitely come up in any performance oriented review, right? Obviously you will see some understeer in any road legal car, but surprising to see it mentioned in this way, and still it beat the 458 and R8 V10 Plus around the track...
So, is it a setup issue (Motortrend claimed Porsche tried to adjust it but it was still not perfect) or maybe it is sensitive to tire wear? If it was a common treat of the car, one would think it would definitely come up in any performance oriented review, right? Obviously you will see some understeer in any road legal car, but surprising to see it mentioned in this way, and still it beat the 458 and R8 V10 Plus around the track...
I agree, but keep in mind that the cars below it don't come with Cup 2 tires, but rather MPSS or similar. They would all easily close that time gap and more if they did. Still extraordinarily impressive though, particularly considering the price.
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Joined: May 2015
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And it was Streets, not Big Willow, as a poster above indicated. Very short, tight track. Still, that's a very quick time for that track.
Drifting
Joined: Mar 2015
Posts: 3,112
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From: Austin, TX
Interesting calculation they did r.e. the gearing. Apparently, if 1st and 2nd were geared for 35 and 65 mph, 0-60 should end up at around 3.5 seconds! As it is, the quarter mile time (12.3 @ 115 mph) is pretty stellar. I know it's not a drag car but, still, more torque to the rear wheels could only help lap times (even with more shifting).
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Joined: Jul 2015
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https://rennlist.com/forums/gt4/8723...at-car-18.html
On an unrelated note, I know the Track Precision App has been generally criticized, but Nur93 seems really impressed with the data he's able to get from it, including the understeer data by corner.
Burning Brakes
Joined: Mar 2015
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From: Stevenson Ranch, CA
I wonder if you ever use anything other than 2nd and 3rd on Streets. Funny I thought the tall gearing would be a problem on a tight track like that. Seems not to be too much of a problem though.
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Joined: Aug 2010
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From: New York
If you follow the Upshift Indicator on the dash you could find yourself in 6th at 35mph.