Turbo vs. N/A HP vs. accelleration times
12-05-2001, 07:28 PM
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Turbo vs. N/A HP vs. accelleration times
I went to the Flat-6 web site and pulled the specs on the 1995 993 C2 and the 1996 TT.
Just curious about something:
If the 993 C2 has 272HP and the 993 TT has 400HP, why is there only a difference of 1.3 seconds 0-60 and 1.3 0-1/4 mile? It just seems like having 128more HP in a twin turbo would provide a larger gap than the N/A cars? Maybe 1.3 seconds is a very substantial number, I'm not an expert.
Also, the Turbo S has 424HP vs. the TT's 400HP yet the 0-60 times are only 0.1 seconds apart. I have seen TTs sell for $80-$90K and the Turbo S sell for $130-$160. Seems like a large price difference for 0.1 second.
Anyway not trying to start a turbo vs. non-turbo debate. Just wondering as I ponder my next 993 purchase (in a few years!)
Just curious about something:
If the 993 C2 has 272HP and the 993 TT has 400HP, why is there only a difference of 1.3 seconds 0-60 and 1.3 0-1/4 mile? It just seems like having 128more HP in a twin turbo would provide a larger gap than the N/A cars? Maybe 1.3 seconds is a very substantial number, I'm not an expert.
Also, the Turbo S has 424HP vs. the TT's 400HP yet the 0-60 times are only 0.1 seconds apart. I have seen TTs sell for $80-$90K and the Turbo S sell for $130-$160. Seems like a large price difference for 0.1 second.
Anyway not trying to start a turbo vs. non-turbo debate. Just wondering as I ponder my next 993 purchase (in a few years!)
12-05-2001, 08:08 PM
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1.3 is pretty substantial on the 0-60 times. One thing to be very aware of it the differneces in 0-60 between testers and runs. For the TT, most magazines got 3.9 to 4.1 but some got 3.6. That was mostly about how hard you are willing to launch. In comparing two cars, you need to make sure the runs were the same.
The premium for the S is not for the HP, but the fact that the car was pretty rare and 'exclusive'. From a performance standpoint, the normal TT + upgrades will blow away the S with money left in your pocket. For that matter, a Camaro with HP and major handling mods will blow both away with lots of $$ left over.
The premium for the S is not for the HP, but the fact that the car was pretty rare and 'exclusive'. From a performance standpoint, the normal TT + upgrades will blow away the S with money left in your pocket. For that matter, a Camaro with HP and major handling mods will blow both away with lots of $$ left over.
12-05-2001, 08:59 PM
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A general rule of thumb is that the average driver can "feel" a difference of about 0.3 seconds in 0-60 tests.
1.3 seconds is very noticeable difference, and all the more impressive since the n/a 993 reaches 60 in about 5 seconds which is faster than most cars on the road. At a certain point, street tire compounds are the limiting factor on further improvement.
But don't take my word for it, hop a ride in a 993TT and see for yourself.
My first time in a 993TT left me shocked at how quickly the car flew through first and second gear -- the challenge was anticipating the shifts before the rpms zinged up to the limiter.
1.3 seconds is very noticeable difference, and all the more impressive since the n/a 993 reaches 60 in about 5 seconds which is faster than most cars on the road. At a certain point, street tire compounds are the limiting factor on further improvement.
But don't take my word for it, hop a ride in a 993TT and see for yourself.
My first time in a 993TT left me shocked at how quickly the car flew through first and second gear -- the challenge was anticipating the shifts before the rpms zinged up to the limiter.
12-05-2001, 09:18 PM
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Temple,
You are right about the gears. 1st is almost worthless in a stock TT and less than worthless in mine - you have to start your brain shifting BEFORE you go full throttle to stay off the rev limiter. Second is a bit easier, but it is 3rd and 4th that are really fun. All the more reason that 0-60 is not that meaningful in a TT but 60-120 is something else.
You are right about the gears. 1st is almost worthless in a stock TT and less than worthless in mine - you have to start your brain shifting BEFORE you go full throttle to stay off the rev limiter. Second is a bit easier, but it is 3rd and 4th that are really fun. All the more reason that 0-60 is not that meaningful in a TT but 60-120 is something else.
12-05-2001, 09:37 PM
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Look at it this way:
5.2 seconds for the normally aspirated car and 3.9 for the TT. That's "only" 1.3 seconds but it's 33% faster. At 3.6 seconds it's 44% faster. So, that 1.3 seconds isn't such a small difference.
The horsepower different is about 47% more than the normally aspirated car.
5.2 seconds for the normally aspirated car and 3.9 for the TT. That's "only" 1.3 seconds but it's 33% faster. At 3.6 seconds it's 44% faster. So, that 1.3 seconds isn't such a small difference.
The horsepower different is about 47% more than the normally aspirated car.