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Old 09-20-2014, 08:40 AM   #71
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Originally Posted by Soccerluvr4 View Post
You completely missed the point.

OP has an auto, looking at the comparisons anything higher than 3.73 will be monster gearing.

You are talking about a completely different transmission. 3.73, possibly a little higher is perfect for the manuals.

Yes it is the same engine being used, but you need to isolate the gearing to find out what is best for the car.

The reason there is the old saying of 3.73 for manual and 4.10 for auto is back in the SN95 when the auto had numerically lower transmission gearing than the manual, which meant that it benefitted from the numerically higher rear end gear. It is completely the opposite with the newer Mustangs. The autos now have numerically higher transmission gearing and will benefit from a numerically lower rear end gear.

Also, there is a difference from feeling faster to actually being faster.

Example. The fastest Auto 5.0s run 3.15 gears, yes it is a V8 but they are still just as high revving and get all their power up top like the 3.7. There is actual evidence that a higher gearing feels much faster, but then track times and actual races show differently.


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Not once did I mentioned anything about auto's, I commented to Scotty's post to GT1's question about first gear being useless in a MT-82 Manual NOT auto.

I'm also saying that some members here have 3.55s/3.73s and some 4.10s auto or manual and NONE of them have ever mentioned that whatever gear they chose was way too much including myself (3.73 Manual) All I can say is maybe try to get some seat time in a 3.7 manual or auto with any of those gears to see for yourselves. If your ever at the annual Am show you should maybe ask someone for a spin around the block with gears to understand what we are all saying. I just find it bizzare that both you and Scotty are telling us what gears will be pointless or too much when you have no seat time in our cars with any of the above gears auto or manual. Hell I'd like a spin around the block in an auto with 3.73s or even 4.10s! I test drove a 13 auto with 2.73 for about 1/2 hour (***** *** slow of the line) and then a 13 auto pp with 3.31s, better but it definitely could have handled a lot more gear in it just fine.

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Old 09-20-2014, 09:07 AM   #72
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Have you driven your car with the stock 2.73s, 3.15s/31s/55s and the other ratios to compare as well? I'm just curious and am assuming yes for stock 2.73s when you got it. My biggest point, as well as Soccer's is that there is such a thing as too much gearing and shifting too much in a stick will drop your 1/4 times and potentially lower any 60 ft times depending on the setup. Also will kill gas mileage for DD purposes on the highway.

If you don't care about that and love the 3.73s, its your car, don't let anyone else tell you that its not the right choice for YOU. IMO, one want to get a car like the Cyclone to equal out to something like a 4.10 or 4.30 in an older 2V since we make similar torque down low at lower RPM. The Cyclone redline is higher, and being a 6 spd its the best of all worlds since the 6th gear is going to be a .65-.70 depending on what you have. This would equal out to a 3.31=4.12 old school gears in the V6 MT-82 and the 3.55=4.42 old school gears in the V6 MT-82.

This is all I am saying and I have driven plenty of cars with similar power as well as a ton of 2V and 5.0 cars that had way too much or way too little gearing. Yes I need more than a cursory drive in the V6, the one I drove recently was an auto with stock gears and it felt like it had as much coming out of the hole as some of the geared pushrods I've had which surprised me.
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Old 09-20-2014, 10:05 AM   #73
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Quote:
Originally Posted by scottydsntknow View Post
Have you driven your car with the stock 2.73s, 3.15s/31s/55s and the other ratios to compare as well? I'm just curious and am assuming yes for stock 2.73s when you got it. My biggest point, as well as Soccer's is that there is such a thing as too much gearing and shifting too much in a stick will drop your 1/4 times and potentially lower any 60 ft times depending on the setup. Also will kill gas mileage for DD purposes on the highway.

If you don't care about that and love the 3.73s, its your car, don't let anyone else tell you that its not the right choice for YOU. IMO, one want to get a car like the Cyclone to equal out to something like a 4.10 or 4.30 in an older 2V since we make similar torque down low at lower RPM. The Cyclone redline is higher, and being a 6 spd its the best of all worlds since the 6th gear is going to be a .65-.70 depending on what you have. This would equal out to a 3.31=4.12 old school gears in the V6 MT-82 and the 3.55=4.42 old school gears in the V6 MT-82.

This is all I am saying and I have driven plenty of cars with similar power as well as a ton of 2V and 5.0 cars that had way too much or way too little gearing. Yes I need more than a cursory drive in the V6, the one I drove recently was an auto with stock gears and it felt like it had as much coming out of the hole as some of the geared pushrods I've had which surprised me.
I've had 2.73s the first year I had my car, test drove a 13 with 3.31s and now have my 3.73s. I can honestly say 3.15s wouldn't be as good as 3.31s, and having 3.73s I can say I'd also be happy with 3.55s which are in between the 3.31 and 3.73s that I have now. Anything over 3.73s I can't speak for as I have zero seat time in a 3.7 with more gear than 3.73s. I agree there comes a time when it can become too much gear, maybe its 4.10 and above, don't know, but I can honestly say 3.73s is a sweet gear choice for the 3.7 MT-82. Maybe someone can chime in with 4.10s and give an honest opinion auto or manual?

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Old 09-20-2014, 11:42 AM   #74
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The MT82 does have a similar ratio to the auto in first gear
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Old 09-20-2014, 12:14 PM   #75
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Yes because the V6 makes way less torque down low and, unlike the auto, the stick does not have a converter to multiply the initial torque to make up for it.
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Old 09-20-2014, 12:27 PM   #76
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I will throw out there that the fastest NA mt82 cyclone was running around 12.6. He had 3.73s in the rear end. Anything past 3.73 is too much gear for the 3.7 mt82. 1st is over around 37mph with 27" tires. 3.55s 1st is around 40. Both are still very usable gears with either option. 3.55s only spin 100-125 less rpms than 3.73.
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Old 09-20-2014, 01:13 PM   #77
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Powerwhee needs to chime in on this. He's a huge advocate of 4.10's in the auto cars. He has info on the gearing vs. rpm's vs. mph's on another site and believes 4.10's are the perfect gear ratio for the auto cars. I believe he originally had 3.55 gears TTFWIW. He also has been shifting his car at 7500 rpm redline forever now.
Personally I would take advice from people who actually have and drive the cars with the gearing/transmission vs. speculation of how its suppose to drive.
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Old 09-20-2014, 01:27 PM   #78
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Like I said before there is a difference between feeling faster and actually being faster.


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Old 09-20-2014, 01:34 PM   #79
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So 3.31 must "feel" faster because at the strip 4.10 (auto, 3.73 manual) is "actually" faster.
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Old 09-20-2014, 01:51 PM   #80
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Quote:
Originally Posted by Soccerluvr4 View Post
Like I said before there is a difference between feeling faster and actually being faster.


Bullitts are better than Bullets

Time slips of racing at the track and videos on you tube of 3.73 & 4.10 powered cars whooping people say otherwise. Where are all the 3.31 and 3.55 geared peps beating up on the same cars with 3.73 or 4.10's?
I had 3.31 gears (PP car), modded and tuned before going to 3.73. In no way shape or form did the 3.31 gears feel quicker or faster over the 3.73 gear swap on the same mods re-tuned..
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Old 10-14-2014, 05:17 PM   #81
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Lightly modded cars would benefit more from a 3.73 swap then? I have stock 18" tires and don't plan on changing them. A tune and 3.73's are about all I have planned for my pony.


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