Any Rennlisters from New Zealand?
11-26-2013, 05:51 AM
#6451
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This is quite an interesting graph as it shows identical lap times but with different cornering technique, especially on turn 10 with double apex racing ray line vs steve's continious curve. There is a HUGE speed difference during the corner, yet we end up at the same speed down the straight. I know Pete's C4 is quicker than my car in a straight line, assuming your car is as quick, this means the double apex gives a quicker back straight speed at the cost of mid cornering speed?
I've never bothered double apex'ing that corner and I'm confused by this because it seems like irrelevant theory when actually racing other cars. When I was at the NZFMR the guys that double apex'd that turn just opened the door for me to pass while I'm on the tightening line (aka the Rasmussen line).
Maybe it makes sense for enduro racing where tire preservation is critical but your back left will go before your front left at HD all day...
11-26-2013, 05:56 AM
#6453
Rennlist Member
Sean. The double apex actually keeps you closer to the inside radius than the tightening line from what I observed. Ray taught me the same line. He seemed to indicate it was an ideal line but obviously racing lines might differ somewhat. With the double apex you turn into 10 early and slice it running maybe 10m wide then cut back in to run the line on the grass. If its perfectly executed Id imagine its faster than an y other method in a 911 (weight transfer, understeer etc). Its the same technique used at Manfield for the famous sweeper before the front straight. Problem with the double apex is its damn hard to master, so most of us loose time trying it and f*cking it up....
11-26-2013, 05:59 AM
#6454
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Sean. The double apex actually keeps you closer to the inside radius than the tightening line from what I observed. Ray taught me the same line. He seemed to indicate it was an ideal line but obviously racing lines might differ somewhat. With the double apex you turn into 10 early and slice it running maybe 10m wide then cut back in to run the line on the grass. If its perfectly executed Id imagine its faster than an y other method in a 911 (weight transfer, understeer etc). Its the same technique used at Manfield for the famous sweeper before the front straight. Problem with the double apex is its damn hard to master, so most of us loose time trying it and f*cking it up....
11-26-2013, 05:59 AM
#6455
Three Wheelin'
bose store Wellington last Friday
and then rewind to the 40th anniversary world Carrera RS meeting
sept 2012 Stuttgart, Germany
and then rewind to the 40th anniversary world Carrera RS meeting
sept 2012 Stuttgart, Germany
Last edited by gt38088; 03-06-2014 at 02:27 AM.
11-26-2013, 06:10 AM
#6457
Racer
Hi Doug, Its Sam, Count me in for the Sunday session too. Looking forward to a sunday blast!
The talk last night of importing 964s ex US is interesting. I've seen quite a few pop up on ebay over the past year or two that looked worthwhile. The LHD rule last time I looked here was that it had to be over 20 years old to be able to be imported without conversion. So a 1993 or older car would be legit. The other option is to prove it is a rare enthusiast car as there are a limited number of permits given a year for that cause also.
Here's some I stumbled across in cali... some immaculate looking examples, a beaut ’97 C2S which had the sports seats with guards red backs also. 65 miles and priced at $58K USD. (about $70k NZD) The India red SC was a ’78 asking $25k USD. and the cab was similar price.
The talk last night of importing 964s ex US is interesting. I've seen quite a few pop up on ebay over the past year or two that looked worthwhile. The LHD rule last time I looked here was that it had to be over 20 years old to be able to be imported without conversion. So a 1993 or older car would be legit. The other option is to prove it is a rare enthusiast car as there are a limited number of permits given a year for that cause also.
Here's some I stumbled across in cali... some immaculate looking examples, a beaut ’97 C2S which had the sports seats with guards red backs also. 65 miles and priced at $58K USD. (about $70k NZD) The India red SC was a ’78 asking $25k USD. and the cab was similar price.
Last edited by Runtothehills; 02-03-2015 at 07:22 PM.
11-26-2013, 06:11 AM
#6458
Rennlist Member
I must be missing something...
I've never bothered double apex'ing that corner and I'm confused by this because it seems like irrelevant theory when actually racing other cars. When I was at the NZFMR the guys that double apex'd that turn just opened the door for me to pass while I'm on the tightening line (aka the Rasmussen line).
Maybe it makes sense for enduro racing where tire preservation is critical but your back left will go before your front left at HD all day...
I've never bothered double apex'ing that corner and I'm confused by this because it seems like irrelevant theory when actually racing other cars. When I was at the NZFMR the guys that double apex'd that turn just opened the door for me to pass while I'm on the tightening line (aka the Rasmussen line).
Maybe it makes sense for enduro racing where tire preservation is critical but your back left will go before your front left at HD all day...
The double apex line allows you to cut the corner tight instead of running wide, so if I had the same car as you, I would cut in under breaking, or you can block the car behind. You are also making the straight longer, so again I can often accelerate past people exiting the corner as they are still turning (until their 300 or more hp kicks in and they pass me back
)I think it depends on the setup of the car, I find my car better for double apexing, then I drove Pete's 944 S2 race car on Sunday, and double apexing felt all wrong, the car was much happier to sweep in a wider arch, so I adopted this line??
man 944's are much faster through corners........... 50/50 balance.........
11-26-2013, 06:11 AM
#6459
Rennlist Member
If I ever make it to HD for another go I think I will try the tightening radius option. To me it probably accomplishes more with less to perfect, practice or remember!
11-26-2013, 06:17 AM
#6462
Rennlist Member
That sounds about right. They were doing it correctly and I was probably not going deep enough! I can see how it can open up a hole. I would have thought it wasnt an ideal racing line.
If I ever make it to HD for another go I think I will try the tightening radius option. To me it probably accomplishes more with less to perfect, practice or remember!
If I ever make it to HD for another go I think I will try the tightening radius option. To me it probably accomplishes more with less to perfect, practice or remember!
If you take Steve in his early 911 for instance, I think that car can do a 1.17, but when he is racing, it's anything from 1.18 to 1.20 from my observation??
11-26-2013, 06:18 AM
#6463
Racer
Candy Red 930 Turbo with refurbished interior looked quite interesting it was around $40K USD...
Attachment 782260
And the beauty... super low mileage ’75 with rebuilt 2.7 MFI. This had the original 300k speedo and cool little brake ducts built into the front bumper. This was around 100K.
Attachment 782261
Attachment 782262
Attachment 782260
And the beauty... super low mileage ’75 with rebuilt 2.7 MFI. This had the original 300k speedo and cool little brake ducts built into the front bumper. This was around 100K.
Attachment 782261
Attachment 782262
Last edited by Runtothehills; 12-01-2013 at 06:22 PM.
11-26-2013, 06:30 AM
#6465
Three Wheelin'
Graeme that car looks gorgeous. Its better than the real thing! You make sure you look after it for me now ok!