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Are you talking at stop position, or rolling to a stop and trying to downshift into first?
At a complete stop. If I let the clutch out very slightly it will usually go into gear but can also grind if I let it out to much while doing this. I have gotten in to the habit in all of my vehicles over the years to go into 2nd first and then 1st but that isn't helping.
I actually don't care what transmission you have as long as it's what you want. I want an R8 to go with the 996 and I keep finding myself looking at the S-tronic variants instead of the gated manuals.
That makes sense, you cannot shift the gated 6 speed very quickly in the V8 R8, especially going down.
At a complete stop. If I let the clutch out very slightly it will usually go into gear but can also grind if I let it out to much while doing this. I have gotten in to the habit in all of my vehicles over the years to go into 2nd first and then 1st but that isn't helping.
When we put the new box in my car with the Numeric cables, the only adjustment we did was on the cable that controlled second, as it wasn't quite extended enough to properly slot second into its space - I've never seen that tool you linked earlier. If you are getting some grinding occasionally, isn't that a syncro issue? I can down downshift all the way to first, while rolling, without any grinding, but I do match the revs.
When we put the new box in my car with the Numeric cables, the only adjustment we did was on the cable that controlled second, as it wasn't quite extended enough to properly slot second into its space - I've never seen that tool you linked earlier. If you are getting some grinding occasionally, isn't that a syncro issue? I can down downshift all the way to first, while rolling, without any grinding, but I do match the revs.
It could be a synchro issue but an adjustment couldn't hurt. I think this car was tracked several times so who knows. There is a thread in this forum about using the tool but it only works on the stock shifter from what is being discussed. If it's in neutral I don't see why it matters that a short shifter is being used.
I haven't found the stock pedals to be a problem with heel/toe. I have size 12 feet and can pretty easily roll my foot from the brake to the gas to blip it in between shifts.
John, what I find more interesting is the amount of corners at HPR you take in 2nd gear. Based on your lap times, obviously that isn't over slowing you on corner entry, however, with the exception of corner #6 and 8, I'm in third gear. I've been wondering if I'm over slowing the car in corner 6 by going down to 2nd. Your gearing is different than mine though, right?
A lot of it is gearing dependent obviously. My gearing is the taller 997GT2 1-4 and 996GT2 5-6 (same as 6TT). Coupled with 27" tall rear tires and a 7500 rpm redline the overall gearing is quite a bit taller than a 6TT. It works out to the following:
996CTSR at 7500
1........54mph
2........90mph
3........121mph
4........156mph
5........185mph
6........227mph
By comparison:
996TT at 6750
1.........47mph
2.........74mph
3.........95mph
4.........113mph
5.........161mph
6.........198mph
You are probably running a 7000rpm redline but likely shift it lower as I imagine output starts to drop above 6700 or so on a stock K24 set up. I go to redline on every shift because that is where the engine develops most power. I think in your case it would be worth trying to also run corner 2 and 11 in 2nd and see what the difference is on data. I take corner 2 and 11 very tight compare to others so 2nd is the way to go for me for sure. You are geared substantially shorter than I am so it may be a bit of a toss up in your case but it's worth a try. Are you using Aim of any sort of data collection to analyze?
Last edited by powdrhound; 01-04-2024 at 01:10 PM.
Ok, looking at the gearing that makes sense why you're using 2nd so much more than me. I'm running a Garmin Catalyst, so it'll show me entry speed, apex speed and corner exit speed. The way Harvey has my car tuned it makes max power all the way to 7000rpm, so I usually shift just shy of that.
A lot of it is gearing dependent obviously. My gearing is the taller 997GT2 1-4 and 996GT2 5-6 (same as 6TT). Coupled with 27" tall rear tires and a 7500 rpm redline the overall gearing is quite a bit taller than a 6TT. It works out to the following:
996CTSR at 7500
1........54mph
2........90mph
3........121mph
4........156mph
5........185mph
6........227mph
By comparison:
996TT at 6750
1.........47mph
2.........74mph
3.........95mph
4.........113mph
5.........161mph
6.........198mph
You are probably running a 7000rpm redline but likely shift it lower as I imagine output starts to drop above 6700 or so on a stock K24 set up. I go to redline on every shift because that is where the engine develops most power. I think in your case it would be worth trying to also run corner 2 and 11 in 2nd and see what the difference is on data. I take corner 2 and 11 very tight compare to others so 2nd is the way to go for me for sure. You are geared substantially shorter than I am so it may be a bit of a toss up in your case but it's worth a try. Are you using Aim of any sort of data collection to analyze?
Looking at your 6th - how fast have you had it, flat out?
I have these in my 997 but they make them for a 996. They install without any drilling which is a plus. The throttle pedal is hinged on ball bearings. Numeric makes them and you can order them without the silly logos. I got them in silver which complements the other silver accents on the interior. They also make them in black. Overall a very nice OEM looking product.
Looking at your 6th - how fast have you had it, flat out?
I've never had it in 6th flat out. Not even 5th really. A little over 170 years ago at COTA was the fasters I think. The car would easily do over 200 but I doubt I'd have the ***** for that. Things get ugly awfully fast at those speeds and something as simple as a tire failure can get that ball rolling....
Ok, looking at the gearing that makes sense why you're using 2nd so much more than me. I'm running a Garmin Catalyst, so it'll show me entry speed, apex speed and corner exit speed. The way Harvey has my car tuned it makes max power all the way to 7000rpm, so I usually shift just shy of that.
It'll be really cool to see your dyno chart. You were smart getting away from the K16s for sure. I think if you remove the front diff on your car and install 305/35s in the rear you will make your gearing taller and going to 2nd will make more sense. My bet is you will see gains then.
Last edited by powdrhound; 01-04-2024 at 01:35 PM.
I've never had it in 6th flat out. Not even 5th really. A little over 170 years ago at COTA was the fasters I think. The car would easily do over 200 but I doubt I'd have the ***** for that. Things get ugly awfully fast at those speeds and something as simple as a tire failure can get that ball rolling....
You think a tyre failure at speed, with all your downforce, would take you airborne?
I have these in my 997 but they make them for a 996. They install without any drilling which is a plus. The throttle pedal is hinged on ball bearings. Numeric makes them and you can order them without the silly logos. I got them in silver which complements the other silver accents on the interior. They also make them in black. Overall a very nice OEM looking product.
Is that dash all Alcantra? I never knew that was an option.
It'll be really cool to see your dyno chart. You were smart getting away from the K16s for sure. I think if you remove the front diff on your car and install 305/35s in the rear you will make your gearing taller and going to 2nd will make more sense. My bet is you will see gains then.
Yeah, I'm going to get it on Bear's dyno this Spring. Funny story, when I was looking to buy a 996 Turbo, I wanted an X50 car that wasn't silver, preferably with the ceramic brakes so I'd have the larger brake calipers. Instead I got a K16 car that was silver, mostly because I have rotten luck buying cars out of state and this car was in Parker. I'm somewhat regretful that I didn't continue to search, I probably could've found a good car out of state and been ok. So basically the day after I bought the car I was looking for a set of K24 turbo's, they were much harder to find than I expected...
Downforce falls away with yaw, pretty dramatically past a certain degree, and going off track can send you flying no matter what....
I see. I had a tyre failure at 85/90 in the turbo and it most certainly increased the pucker factor, whole car shifted, so I was very happy it didn't twist right off the road, can only imagine what that would be like at greater speeds.
01-04-2024, 12:20 PM
