Tremec 3650 vs 6 spd transmission
9/21/04, 01:31 AM
#1
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Does anyone who has a current GT w/the Tremec 3650 commute on the freeway. What kind of freeway milage do you get? Any idea what top gear rpms are at freeway speed?
I believe the 05 will have a different final gear ratio? Will that improve the gas milage. The reason I ask is because I am really stretching the numbers thin to see if I can get into an '05 GT. I'm willing to wait, but the sooner I can get into one the better (I'm sure you people can understand that)
I commute a long way on the freeways of Southern California to work everyday. Doesn't look like I'll be moving closer to work anytime soon, and I don't really want to give up my job. Right now my current car is 2 1/2 yrs old and has 73,000 miles on it (I drive way to far). I'm getting about 30-32 mpg gallon now, so getting into the GT would be a serious drop.
What I'm asking is does anyone think that waiting to see if Ford offers a 6 spd poss in 06 MY or after be worth it? Five gears has been enough for me so far, but I'm weighing my desire for an '05 GT against all the miles I would have to put on it. Is there a significant advantage to having the extra gear if you spend most of your time at freeway speeds?
Thank you in advance
I believe the 05 will have a different final gear ratio? Will that improve the gas milage. The reason I ask is because I am really stretching the numbers thin to see if I can get into an '05 GT. I'm willing to wait, but the sooner I can get into one the better (I'm sure you people can understand that)
I commute a long way on the freeways of Southern California to work everyday. Doesn't look like I'll be moving closer to work anytime soon, and I don't really want to give up my job. Right now my current car is 2 1/2 yrs old and has 73,000 miles on it (I drive way to far). I'm getting about 30-32 mpg gallon now, so getting into the GT would be a serious drop.
What I'm asking is does anyone think that waiting to see if Ford offers a 6 spd poss in 06 MY or after be worth it? Five gears has been enough for me so far, but I'm weighing my desire for an '05 GT against all the miles I would have to put on it. Is there a significant advantage to having the extra gear if you spend most of your time at freeway speeds?
Thank you in advance
9/21/04, 05:56 AM
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The gear ratio is different in the 05 than in the 04. The 05 has a 3.55 gear and the 04 has a 3.27 gear I beliive. If the engine and transmission were the same then the 05 would get less gas mileage. However, as I'm sure you know, the engine isn't the same so it'll be hard to tell until we get some 05 GT's and test them for gas mileage.
A 6 speed might help but that depends on what gears they put in them. Some 6 speeds have 5th gear as drive and 6th as overdrive, while others have 5th and 6th as overdrive. I'm not sure which setup Ford uses in the current T56, although I believe that its the later. But I haven't heard of any news about getting a 6 speed in the GT for 06, I expect the SVT will have it tho.
A 6 speed might help but that depends on what gears they put in them. Some 6 speeds have 5th gear as drive and 6th as overdrive, while others have 5th and 6th as overdrive. I'm not sure which setup Ford uses in the current T56, although I believe that its the later. But I haven't heard of any news about getting a 6 speed in the GT for 06, I expect the SVT will have it tho.
9/21/04, 06:06 AM
#3
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Be careful by stretching it. Making money tight could make you regret something. Or it might make you get something repossesed. I would wait until things are comfortable and not stretch IMO.
9/21/04, 06:10 AM
#4
I don't see a 6-speed in the Mustang GT anytime soon, if (for example) it was available in '06, I would wait for that extra gear.
The MPG numbers for the 2005 are similar to the '04 (see latest order guide) The change in rear gearing was a result of going to a taller tire, so overall, you have the same effective gear ratio.
I too would have loved an extra gear with a 0.50:1 gear ratio, it would be nice especially if I do a career move where I may be doing a lot of freeway driving.
The MPG numbers for the 2005 are similar to the '04 (see latest order guide) The change in rear gearing was a result of going to a taller tire, so overall, you have the same effective gear ratio.
I too would have loved an extra gear with a 0.50:1 gear ratio, it would be nice especially if I do a career move where I may be doing a lot of freeway driving.
9/21/04, 07:36 AM
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I drive about 55 miles each way to work with about 40 of that on a highway. I only figured out my mileage once when I first got it and it was roughly 25mpg with mostly highway driving. I don't drive like a nut though so it will vary by driver. I seem to remember around 70-75 mph it is about 2K rpm. It is an 02 GT 5 speed.
9/21/04, 08:26 AM
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Originally posted by 07svt@September 21, 2004, 7:39 AM
I drive about 55 miles each way to work with about 40 of that on a highway. I only figured out my mileage once when I first got it and it was roughly 25mpg with mostly highway driving. I don't drive like a nut though so it will vary by driver. I seem to remember around 70-75 mph it is about 2K rpm. It is an 02 GT 5 speed.
I drive about 55 miles each way to work with about 40 of that on a highway. I only figured out my mileage once when I first got it and it was roughly 25mpg with mostly highway driving. I don't drive like a nut though so it will vary by driver. I seem to remember around 70-75 mph it is about 2K rpm. It is an 02 GT 5 speed.
How about that new GTO? 400 horsepower AND 29mpg highway?
Any chance Ford can take the hint?
9/21/04, 08:46 AM
#7
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If you are going to buy a mustang, don't use it to commute that much. It'll eat you alive in gas and depreciation. Keep it for fun. buy an old economy car to drive every day (or keep your Civic). The old car might even lower your insurance rate enough to pay for itself (by making the mustang a pleasure vehicle). I sold my last Mustang because I had to commute 75 miles each way 5 days a week. I bought an old used Maxima and drove it. Now the commute is over and I am ready to buy my SVT (as soon as they start selling them)
9/22/04, 06:53 PM
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Originally posted by crazyhorse@September 21, 2004, 6:49 AM
If you are going to buy a mustang, don't use it to commute that much. It'll eat you alive in gas and depreciation. Keep it for fun. buy an old economy car to drive every day (or keep your Civic). The old car might even lower your insurance rate enough to pay for itself (by making the mustang a pleasure vehicle). I sold my last Mustang because I had to commute 75 miles each way 5 days a week. I bought an old used Maxima and drove it. Now the commute is over and I am ready to buy my SVT (as soon as they start selling them)
If you are going to buy a mustang, don't use it to commute that much. It'll eat you alive in gas and depreciation. Keep it for fun. buy an old economy car to drive every day (or keep your Civic). The old car might even lower your insurance rate enough to pay for itself (by making the mustang a pleasure vehicle). I sold my last Mustang because I had to commute 75 miles each way 5 days a week. I bought an old used Maxima and drove it. Now the commute is over and I am ready to buy my SVT (as soon as they start selling them)
Get a car you love, drive it all the time. Life is too short to drive boring autos.
I have a 35mile commute (70 miles a day) and I'll drive my new car every day.
9/22/04, 07:03 PM
#9
One thing to look at is the 5th gear ratio (.68) in the 3650, and 6th gear ratio (.63) in the T56. As you can see they final gears are very close, and subsequently when multiplied by the final drive ratio (say 3.55) you can see that the advantage, in terms of fuel economy, would be relatively equal.
9/22/04, 09:42 PM
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Originally posted by Evil_Capri@September 22, 2004, 7:06 PM
One thing to look at is the 5th gear ratio (.68) in the 3650, and 6th gear ratio (.63) in the T56. As you can see they final gears are very close, and subsequently when multiplied by the final drive ratio (say 3.55) you can see that the advantage, in terms of fuel economy, would be relatively equal.
One thing to look at is the 5th gear ratio (.68) in the 3650, and 6th gear ratio (.63) in the T56. As you can see they final gears are very close, and subsequently when multiplied by the final drive ratio (say 3.55) you can see that the advantage, in terms of fuel economy, would be relatively equal.
5th-- 0.84:1
6th-- 0.57:1
The T56-M12 is mated to a 3.46:1 final drive.
That's definitely lower than the Mustang, which you said has a 0.68 in 5th, mated to a 3.55:1 final...
Though I do understand your point that the difference is certainly less than I originally thought.
9/23/04, 01:15 AM
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I don't think we'll see the 6 speed in anything other than SVT vehicles and perhaps SE's such as the new Mach. I would bet a shift **** we'l just see the 5sp in the GT and base for the forseeable future.
Just my opinion but I think it's a pretty safe bet.
Just my opinion but I think it's a pretty safe bet.
9/23/04, 04:59 AM
#13
Originally posted by grabbergreen+September 22, 2004, 9:45 PM--></div><table border='0' align='center' width='95%' cellpadding='3' cellspacing='1'><tr><td>QUOTE (grabbergreen @ September 22, 2004, 9:45 PM)</td></tr><tr><td id='QUOTE'> <!--QuoteBegin-Evil_Capri@September 22, 2004, 7:06 PM
One thing to look at is the 5th gear ratio (.68) in the 3650, and 6th gear ratio (.63) in the T56. As you can see they final gears are very close, and subsequently when multiplied by the final drive ratio (say 3.55) you can see that the advantage, in terms of fuel economy, would be relatively equal.
One thing to look at is the 5th gear ratio (.68) in the 3650, and 6th gear ratio (.63) in the T56. As you can see they final gears are very close, and subsequently when multiplied by the final drive ratio (say 3.55) you can see that the advantage, in terms of fuel economy, would be relatively equal.
5th-- 0.84:1
6th-- 0.57:1
The T56-M12 is mated to a 3.46:1 final drive.
That's definitely lower than the Mustang, which you said has a 0.68 in 5th, mated to a 3.55:1 final...
Though I do understand your point that the difference is certainly less than I originally thought. [/b][/quote]
The .63 gear ratio I indicated for 6th gear in the T56 is from 2003-2004 Cobra.
The .68 gear ratio is 5th gear from the 5-speed 3650.
Both "high" gears for each respective transmission.
Sorry to confuse.
9/23/04, 07:03 AM
#14
Tasca Super Boss 429 Member
Originally posted by grabbergreen+September 21, 2004, 8:29 AM--></div><table border='0' align='center' width='95%' cellpadding='3' cellspacing='1'><tr><td>QUOTE (grabbergreen @ September 21, 2004, 8:29 AM)</td></tr><tr><td id='QUOTE'> <!--QuoteBegin-07svt@September 21, 2004, 7:39 AM
I drive about 55 miles each way to work with about 40 of that on a highway. I only figured out my mileage once when I first got it and it was roughly 25mpg with mostly highway driving. I don't drive like a nut though so it will vary by driver. I seem to remember around 70-75 mph it is about 2K rpm. It is an 02 GT 5 speed.
I drive about 55 miles each way to work with about 40 of that on a highway. I only figured out my mileage once when I first got it and it was roughly 25mpg with mostly highway driving. I don't drive like a nut though so it will vary by driver. I seem to remember around 70-75 mph it is about 2K rpm. It is an 02 GT 5 speed.
How about that new GTO? 400 horsepower AND 29mpg highway?
Any chance Ford can take the hint? [/b][/quote]
The GTO only has 350 hp.
The '05 Mustang GT manual gets 28 mpg according to Ford.
9/23/04, 07:31 AM
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The current T3650 5th gear is .62 to 1 not .68 to 1
Also, the 03-04 Cobra spec T56 5th gear is .80 to 1 and 6th gear is .62 to 1
Did they change the T3650's 5th gear ratio for the 2005's?
Adam
Also, the 03-04 Cobra spec T56 5th gear is .80 to 1 and 6th gear is .62 to 1
Did they change the T3650's 5th gear ratio for the 2005's?
Adam
9/23/04, 08:26 AM
#16
Originally posted by Mach1Nut@September 23, 2004, 7:34 AM
The current T3650 5th gear is .62 to 1 not .68 to 1
Also, the 03-04 Cobra spec T56 5th gear is .80 to 1 and 6th gear is .62 to 1
Did they change the T3650's 5th gear ratio for the 2005's?
Adam
The current T3650 5th gear is .62 to 1 not .68 to 1
Also, the 03-04 Cobra spec T56 5th gear is .80 to 1 and 6th gear is .62 to 1
Did they change the T3650's 5th gear ratio for the 2005's?
Adam
9/23/04, 09:16 AM
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Originally posted by holderca1+September 23, 2004, 7:06 AM--></div><table border='0' align='center' width='95%' cellpadding='3' cellspacing='1'><tr><td>QUOTE (holderca1 @ September 23, 2004, 7:06 AM)</td></tr><tr><td id='QUOTE'> <!--QuoteBegin-grabbergreen@September 21, 2004, 8:29 AM
Sooo....
How about that new GTO? 400 horsepower AND 29mpg highway?
Any chance Ford can take the hint?
Sooo....
How about that new GTO? 400 horsepower AND 29mpg highway?
Any chance Ford can take the hint?
The '05 Mustang GT manual gets 28 mpg according to Ford. [/b][/quote]
I was referring to the 2005 GTO, which will be getting the GM LS-2 engine, with 6.0L of displacement. The power figures in the new GTO will be as follows:
--400 horsepower
--395 lb/ft torque
Was that fuel consumption for the 05 Mustang GT an EPA estimate?
9/23/04, 11:23 AM
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Originally posted by crazyhorse@September 21, 2004, 8:49 AM
If you are going to buy a mustang, don't use it to commute that much. It'll eat you alive in gas and depreciation. Keep it for fun. buy an old economy car to drive every day (or keep your Civic). The old car might even lower your insurance rate enough to pay for itself (by making the mustang a pleasure vehicle). I sold my last Mustang because I had to commute 75 miles each way 5 days a week. I bought an old used Maxima and drove it. Now the commute is over and I am ready to buy my SVT (as soon as they start selling them)
If you are going to buy a mustang, don't use it to commute that much. It'll eat you alive in gas and depreciation. Keep it for fun. buy an old economy car to drive every day (or keep your Civic). The old car might even lower your insurance rate enough to pay for itself (by making the mustang a pleasure vehicle). I sold my last Mustang because I had to commute 75 miles each way 5 days a week. I bought an old used Maxima and drove it. Now the commute is over and I am ready to buy my SVT (as soon as they start selling them)
9/23/04, 01:27 PM
#19
Tasca Super Boss 429 Member
Originally posted by grabbergreen+September 23, 2004, 9:19 AM--></div><table border='0' align='center' width='95%' cellpadding='3' cellspacing='1'><tr><td>QUOTE (grabbergreen @ September 23, 2004, 9:19 AM)</td></tr><tr><td id='QUOTE'>
The GTO only has 350 hp.
The '05 Mustang GT manual gets 28 mpg according to Ford.
Originally posted by holderca1@September 23, 2004, 7:06 AM
<!--QuoteBegin-grabbergreen
<!--QuoteBegin-grabbergreen
@September 21, 2004, 8:29 AM
Sooo....
How about that new GTO? 400 horsepower AND 29mpg highway?
Any chance Ford can take the hint?
Sooo....
How about that new GTO? 400 horsepower AND 29mpg highway?
Any chance Ford can take the hint?
The GTO only has 350 hp.
The '05 Mustang GT manual gets 28 mpg according to Ford.
--400 horsepower
--395 lb/ft torque
Was that fuel consumption for the 05 Mustang GT an EPA estimate? [/b][/quote]
Well you gave the fuel economy of the '04 GTO. I don't think '05 GTO numbers for fuel economy has been released.
The Mustang fuel economy is the one listed on the last page of the order guide, that may be real numbers since Ford has had the test mules long enough to get a rather good estimate on the fuel economy.
