Yes, but basically it is an entire new gearbox that is required, not just changing a few gears, so cost is not as long as you might have hoped. Then there is an issue of whether the loss of certain electronic aids, like auto rev matching is important to you, though maybe someone could figure how to hack this.
Mar 13, 2016 11:14:48 PM
Mar 14, 2016 12:14:18 AM
Ring and Pinion gears are notoriously difficult to make in the needed strength. Very few places are capable and none available at moment afaik.
16 Cayman GT4, 73 Carrera RS 2.7 Carbon Fiber replica (1,890 lbs), 06 EVO9 with track mods. Former: 73 911S, Two 951S's, 996 C2, 993 C2, 98 Ferrari 550, 79 635CSi
Mar 14, 2016 12:15:34 AM
Leawood911:Another reason why the tall ratios are ridiculous. Even the PDK for these cars has crazy tall gears. My six speed turbo only gets to 70 mph in second gear.
Your gears aren't very low, would go very fast in 2nd if you had 7,800 rpm redline like GT4...
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16 Cayman GT4, 73 Carrera RS 2.7 Carbon Fiber replica (1,890 lbs), 06 EVO9 with track mods. Former: 73 911S, Two 951S's, 996 C2, 993 C2, 98 Ferrari 550, 79 635CSi
Another great day at the track. Set my personal best time (finally beat my time in my Evo by 0.3s and my 911 by about 1 sec. Friend in another GT4 took some video while following me:
16 Cayman GT4, 73 Carrera RS 2.7 Carbon Fiber replica (1,890 lbs), 06 EVO9 with track mods. Former: 73 911S, Two 951S's, 996 C2, 993 C2, 98 Ferrari 550, 79 635CSi
Grant:Another great day at the track. Set my personal best time (finally beat my time in my Evo by 0.3s and my 911 by about 1 sec. Friend in another GT4 took some video while following me:
Congrats!
How do like your upgrade to the suspension now that you driven it some more?
Kobalt:Grant:Another great day at the track. Set my personal best time (finally beat my time in my Evo by 0.3s and my 911 by about 1 sec. Friend in another GT4 took some video while following me:
Congrats!
How do like your upgrade to the suspension now that you driven it some more?
964 Carrera 4 -- 997.2 C2S , -20mm -- 991 GT3 RS
Gnil:Kobalt:Grant:Another great day at the track. Set my personal best time (finally beat my time in my Evo by 0.3s and my 911 by about 1 sec. Friend in another GT4 took some video while following me:
Congrats!
How do like your upgrade to the suspension now that you driven it some more?
+1
2015 981 Cayman GT4 | White | Full Bucket Seats | Sport Chrono
2014 991 Carrera 4S | Dark Blue Metallic | PDK | Sport Chrono | SPASM
Kobalt:Grant:Another great day at the track. Set my personal best time (finally beat my time in my Evo by 0.3s and my 911 by about 1 sec. Friend in another GT4 took some video while following me:
Congrats!
How do like your upgrade to the suspension now that you driven it some more?
Much better! Used to have understeer in every corner - now it's very neutral with the ability to rotate the car as desired. -2.75 degrees front camber, -2.25 degrees rear camber with caster corrected to minimum factory spec and neutral toe. Swaybars set for max oversteer...
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16 Cayman GT4, 73 Carrera RS 2.7 Carbon Fiber replica (1,890 lbs), 06 EVO9 with track mods. Former: 73 911S, Two 951S's, 996 C2, 993 C2, 98 Ferrari 550, 79 635CSi
Grant:Much better! Used to have understeer in every corner - now it's very neutral with the ability to rotate the car as desired. -2.75 degrees front camber, -2.25 degrees rear camber with caster corrected to minimum factory spec and neutral toe. Swaybars set for max oversteer...
Noticed any downside to this setting?
Kobalt:Grant:Much better! Used to have understeer in every corner - now it's very neutral with the ability to rotate the car as desired. -2.75 degrees front camber, -2.25 degrees rear camber with caster corrected to minimum factory spec and neutral toe. Swaybars set for max oversteer...
Noticed any downside to this setting?
Nope - I guess if mainly driven on the street, tire wear on the inner shoulders would bad...
16 Cayman GT4, 73 Carrera RS 2.7 Carbon Fiber replica (1,890 lbs), 06 EVO9 with track mods. Former: 73 911S, Two 951S's, 996 C2, 993 C2, 98 Ferrari 550, 79 635CSi
vantagesc:Grant, can you remind what components I would need to buy to achieve your alignment?
I have RSS front and rear toe links and 991 Cup front lower control arms (these are overkill, but replace all rubber with monoballs and give solid thrust arm bearing with caster adjustment). If using stock LCA's and want to adjust caster, can buy caster pucks for this. And you need some shims (RSS or Motorsport).
If you are happy with a little less camber, may get away with just rear toe links (can't get much rear camber at all without these - some cars can't even be aligned to factory spec otherwise which is -1.5 degrees. Friend's car only could get -1.2 before toe was out of whack). Adding front camber moves the wheel rearward in the wheel well, so that's why you need to correct caster which centers it again).
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16 Cayman GT4, 73 Carrera RS 2.7 Carbon Fiber replica (1,890 lbs), 06 EVO9 with track mods. Former: 73 911S, Two 951S's, 996 C2, 993 C2, 98 Ferrari 550, 79 635CSi
Love this quote from Evo Mag, comparing the GT4 to the 996 GT3
"Which is best? Answering that is like choosing between a cold pint of beer on a hot summer’s day and a single malt sat next to an open fire. Both hit the spot in very different ways: the beer slakes your thirst, the malt demands you pay it the respect of savouring each sip if you’re to truly appreciate its qualities."
2003 BMW M3 CSL (sold) / 2008 Porsche 911 GT3 RS / 2013 MINI John Cooper Works GP / 2014 BMW Alpina D3 biturbo Touring
Porker:Grant, any pictures of your car in its current more agressive state?
I don't but the change in look is very subtle. I kept the ride height the same, so I can get in my driveway. The extra camber is only visible if you look carefully down the side of the car. I'd take a photo today, but we just had a snow storm. And it's gonna be warm tomorrow and 75F (24C) on Monday. Spring in Denver (actually still Winter for a couple days I guess)...
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16 Cayman GT4, 73 Carrera RS 2.7 Carbon Fiber replica (1,890 lbs), 06 EVO9 with track mods. Former: 73 911S, Two 951S's, 996 C2, 993 C2, 98 Ferrari 550, 79 635CSi
Grant, has the car aligned today. As delivered it has so much rear toe, maybe 15' per wheel, that those wheels had -1.6 degrees camber. When toe was adjusted back to spec, I had only 1.2-1.3 degrees left. Moved the rear away bar to stiff as well.
Lets see how long this lasts before I decide to go after market links.
vantagesc:Grant, has the car aligned today. As delivered it has so much rear toe, maybe 15' per wheel, that those wheels had -1.6 degrees camber. When toe was adjusted back to spec, I had only 1.2-1.3 degrees left. Moved the rear away bar to stiff as well.
Lets see how long this lasts before I decide to go after market links.
Pretty typical problem - if you track much, you'll want rear toe links at minimum.
16 Cayman GT4, 73 Carrera RS 2.7 Carbon Fiber replica (1,890 lbs), 06 EVO9 with track mods. Former: 73 911S, Two 951S's, 996 C2, 993 C2, 98 Ferrari 550, 79 635CSi
Mar 30, 2016 5:37:00 AM