Tiptronic 0-60 times?
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Racer
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From: Glendale, CA
Tiptronic 0-60 times?
I'm curious about the 0-60 times quoted e.g. in the Owner's manual for a 964 Tiptronic. Is the time measured using the fully automatic D position, or when using the manual shiifter (so allowing a start in 1st)?
There must be a difference, right? My assumption would be that using the manual shifter would gain a little time.
There must be a difference, right? My assumption would be that using the manual shifter would gain a little time.
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From: Philly Area ----- George Washington took a dump in my backyard!
First, you will get your best time by putting it in 3rd in the Auto mode, or using the Manual dropped to 1st. In "D", the car will want to start in 2nd, then a split second later, downshift to 1st.
I have found that the published 0-60 time is WAY conservative. I use an Escort G-timer and consistantly register mid 5's, with the best at 5.30.
I have found that the published 0-60 time is WAY conservative. I use an Escort G-timer and consistantly register mid 5's, with the best at 5.30.
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From: Glendale, CA
Originally Posted by LouZ
First, you will get your best time by putting it in 3rd in the Auto mode, or using the Manual dropped to 1st. In "D", the car will want to start in 2nd, then a split second later, downshift to 1st.
I have found that the published 0-60 time is WAY conservative. I use an Escort G-timer and consistantly register mid 5's, with the best at 5.30.
I have found that the published 0-60 time is WAY conservative. I use an Escort G-timer and consistantly register mid 5's, with the best at 5.30.
Would you say that the non-Tip car is slower, then ... assuming stock, equally talented drivers etc.?
And why do "official" figures never specify how they used the Tip to get their result?
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From: Philly Area ----- George Washington took a dump in my backyard!
Originally Posted by jjbunn
Hi Lou ... thanks ... mid 5s is impressive!
Would you say that the non-Tip car is slower, then ... assuming stock, equally talented drivers etc.?
And why do "official" figures never specify how they used the Tip to get their result?
Would you say that the non-Tip car is slower, then ... assuming stock, equally talented drivers etc.?
And why do "official" figures never specify how they used the Tip to get their result?
As to the "official" figures, Porsche is conservative in their posted data. I'm dyno-ing a 16 year car at 210 RWHP, which after conversion losses, should equal over 265 engine HP, this out of a 247 HP claim from the factory. Porsche makes sure that the worse engine out the door will meet their claims.
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From: Easton, Maryland
Agree with LouZ and don't forget the added weight of the automatic transmission will keep the 0-60 time above the Manual as well.
LouZ, isn't your 0-60 time also with the brake on as you rev the rpms up before you lanuch from start? Still impressive!!! Any mods on your TIP?
LouZ, isn't your 0-60 time also with the brake on as you rev the rpms up before you lanuch from start? Still impressive!!! Any mods on your TIP?
Last edited by ronone10; Sep 5, 2006 at 08:53 PM.
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From: New Jersey
I thought the magazines had the tip in the high 6's, and I assume they beat the crap out of the cars when testing....I'll dig up my old road and track tonight...mid-5's seems too fast for a stock tip. I hope it is right (becuause that would make my 5-speed even faster 
), but I have a feeling that's too fast.
), but I have a feeling that's too fast.
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From: Philly Area ----- George Washington took a dump in my backyard!
Originally Posted by ronone10
LouZ, isn't your 0-60 time also with the brake on as you rev the rpms up before you lanuch from start? Still impressive!!! Any mods on your TIP?
I must note that the readings from the Escort G-timer use a series of accelorometers to calculate time over distance, so the accuracy is relative. The claim is that it is accurate to better than 10ths of a second.
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From: Easton, Maryland
Andrew, I reread my post and it should have said the tip due to the weight will have a 0-60 above a Manual instead of below a Manual. I made the correction.
Here are some times I found:
March 1991 Car & Driver has it at 6.1 sec.
June 1992 Automotive Magazine has it at 5.5 sec.
The 1993 Porsche brochure has it at 6.4 secs.
My next Mod is a G-Pipe, not for the performance but for the sound. Just have to find time to install it. I would take the average of the three times above and Louz's time and call it around 5.8 secs.
Here are some times I found:
March 1991 Car & Driver has it at 6.1 sec.
June 1992 Automotive Magazine has it at 5.5 sec.
The 1993 Porsche brochure has it at 6.4 secs.
My next Mod is a G-Pipe, not for the performance but for the sound. Just have to find time to install it. I would take the average of the three times above and Louz's time and call it around 5.8 secs.
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Three Wheelin'
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From: New Jersey
All I can find is a 1990 Road & Track 0-60 of 6.9 for a C2 tip coupe vs. 5.4 for the stick....whether the difference is that much I don't know...that's the only magazine I have with tiptronic times in it.
-Andrew
-Andrew
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From: Los Angeles
Originally Posted by LouZ
I would have to say that a 5 speed is certainly faster than a Tip. There is better gearing ratios with the 5 speed, and no losses thru the torque converter.
As to the "official" figures, Porsche is conservative in their posted data. I'm dyno-ing a 16 year car at 210 RWHP, which after conversion losses, should equal over 265 engine HP, this out of a 247 HP claim from the factory. Porsche makes sure that the worse engine out the door will meet their claims.
As to the "official" figures, Porsche is conservative in their posted data. I'm dyno-ing a 16 year car at 210 RWHP, which after conversion losses, should equal over 265 engine HP, this out of a 247 HP claim from the factory. Porsche makes sure that the worse engine out the door will meet their claims.
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From: Philly Area ----- George Washington took a dump in my backyard!
Originally Posted by Eggplant Cab
Wow Lou, most dynos use a 16% loss conversion, your figures use a 26% loss, which is really high. My dyno came in at 213rwhp which became 255hp using 16%. Are you sure about that?
C2 - Manual = 18%
C4 - Manual = 24%
C2 - Tip = 26%
Only stating what was relayed to me.
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From: New Jersey
An interesting discussion. On the RS 0-60 times, I know I have never seen anything near the mid-4's- that would be turbo 3.6 land... I'm certainly not bashing the 964's acceleration, but from what I have read over the years, on the fastest times I have seen, none of the stock 5-speeds can get lower than low 5's, and none of the stock tiptronics can get into the low 6's... I'd trust the 3rd wheel magazine tests as the most accurate measurement over the portable devices...
-Andrew
-Andrew
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From: Dallas/FortWorth Texas
Originally Posted by andrew911
On the RS 0-60 times, I know I have never seen anything near the mid-4's- that would be turbo 3.6 land... I'm certainly not bashing the 964's acceleration, but from what I have read over the years, on the fastest times I have seen, none of the stock 5-speeds can get lower than low 5's, and none of the stock tiptronics can get into the low 6's... I'd trust the 3rd wheel magazine tests as the most accurate measurement over the portable devices...
http://www.rsamerica.net/articles/ro...Car&Driver.htm