 Lets talk gear ratios, for a street car |
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| TravisNeff |
 Dec 19 2015, 07:27 PM
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#1
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914 Guru  Group: Members Posts: 5,082 Joined: 20-March 03 From: Mesa, AZ Member No.: 447 Region Association: Southwest Region 
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So I am home and huddled under the covers today fighting a nasty cold. Was surfing the net and looking at a few books on the 911. They say that with the right gearing, it is like adding 50HP to your car (obviously a car with more power than a stock 4).
I have seen and played around with the gear charts and see what people use for the track or autocross. What about street? For street, some things are similar to a 4 or 6. You aren't driving at redline in every gear you are probably zipping around at similar rev ranges, no? So driving a 4 or 6 is somewhat similar (except for a high torque monster of a 3.6). Is anyone doing something different than a stock 4 for street, and why?? What could you do with different gearing that makes you in the power every time you shift up? |
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| TravisNeff |
Dec 19 2015, 07:42 PM
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#2
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914 Guru Group: Members Posts: 5,082 Joined: 20-March 03 From: Mesa, AZ Member No.: 447 Region Association: Southwest Region
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And one of the other reasons I ask, is you can spend 5-10 grand on an engine to give you that much more power, but half the price to better gearing and rebuild your gearbox at the same time
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| wndsnd |
Dec 19 2015, 08:23 PM
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#3
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You wanted a horse, but got a goat. Nobody wants a goat.... Group: Members Posts: 2,861 Joined: 12-February 12 From: North Shore, MA Member No.: 14,124 Region Association: North East States  |
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| Montreal914 |
Dec 19 2015, 08:24 PM
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#4
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Senior Member Group: Members Posts: 1,571 Joined: 8-August 10 From: Claremont, CA Member No.: 12,023 Region Association: Southern California
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I enjoy my A-F-M-S-ZD combination with my 2056 Djet everyday commuting to work. (IMG:style_emoticons/default/driving.gif)
3rd is a nice shift and 4th even better. I kept the ZD for the highway. You need to push up in forth before shifting into fifth but you get used to it. I also have a stock ratio gearbox, but it has been on a shelf since I installed the close ratio one 3 years ago... |
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| TravisNeff |
Dec 19 2015, 08:29 PM
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#5
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914 Guru Group: Members Posts: 5,082 Joined: 20-March 03 From: Mesa, AZ Member No.: 447 Region Association: Southwest Region
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Great reply and what I am after. How is 4 to 5? Obviously you say you have to push 4th to get to 5th, but how is it in traffic? Painfull, or just learning?
I was thinking (many things) an A F M S Z would be nice, lose a little top end cruising but 4th to 5th is still not so bad |
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| TravisNeff |
Dec 19 2015, 08:30 PM
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#6
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914 Guru Group: Members Posts: 5,082 Joined: 20-March 03 From: Mesa, AZ Member No.: 447 Region Association: Southwest Region
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Do you like the shorter 4th than stock? 4 and 6 (and 911 of the era) had the same N ratio
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| Montreal914 |
Dec 19 2015, 08:58 PM
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#7
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Senior Member Group: Members Posts: 1,571 Joined: 8-August 10 From: Claremont, CA Member No.: 12,023 Region Association: Southern California
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QUOTE(Travis Neff @ Dec 19 2015, 06:29 PM)  Great reply and what I am after. How is 4 to 5? Obviously you say you have to push 4th to get to 5th, but how is it in traffic? Painfull, or just learning? I was thinking (many things) an A F M S Z would be nice, lose a little top end cruising but 4th to 5th is still not so bad I have been thinking of the Z recently but I have to focus on my other 914 project (IMG:style_emoticons/default/smash.gif) so I won't be opening the gearbox anytime soon. As for traffic, I'm not sure what you mean but obviously downshifting from 5th to 4th gets the revs high. You get used to it. There are always tradeoffs, obviously, but in town you go from 2-3-4 so quickly and then just coast, I enjoy it. (IMG:style_emoticons/default/sunglasses.gif) |
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| SirAndy |
Dec 19 2015, 10:57 PM
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#8
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Resident German Group: Admin Posts: 41,669 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
QUOTE(Travis Neff @ Dec 19 2015, 05:27 PM) except for a high torque monster of a 3.6 0-60 in under 4 seconds taking off in 2nd and never shifting ... (IMG:style_emoticons/default/burnout.gif) That's with a stock 901 (IMG:style_emoticons/default/smile.gif) |
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