The Twins better with 5 speed box? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

MikeyBatz · 06-25-2015, 08:59 PM

I was thinking would the frs/brz be better with a one less gear? I remember back in the day before the CVTs most subaru were 5 speed.

5 speed gear pros:
-better power band?
-quicker acceleration
-easier in traffic (manual)
cons
-less mpg

what do you guys think?

Sideways&Smiling · 06-25-2015, 09:10 PM

no.

Tcoat · 06-25-2015, 09:13 PM

Why not go hog wild and just have 3?

Sideways&Smiling · 06-25-2015, 09:25 PM

Allow me to elaborate:

Quote:

Originally Posted by MikeyBatz

I was thinking would the frs/brz be better with a one less gear? I remember back in the day before the CVTs most subaru were 5 speed.

All cars, not Subarus.

Quote:

Originally Posted by MikeyBatz

5 speed gear pros:
-better power band?

How? No.

Quote:

Originally Posted by MikeyBatz

-quicker acceleration

See above.

Quote:

Originally Posted by MikeyBatz

-easier in traffic (manual)

Ok, maybe slightly, but still....... no. Because it's a manual and you should enjoy shifting if you own a manual. This isn't a big torquey V8 with long gearing and low end power.

Quote:

Originally Posted by MikeyBatz

cons
-less mpg

The difference in MPG efficiency isn't really worth thinking about. The specific engine and how hard you drive the car will be much more important to your MPG.

The one actual criticism is that 5 speeds tend to be slightly stronger. The S15 6-speed vs the S13/14 5-speed debate is a good example...... but, in reality, neither will be strong enough for people making big power, so it doesn't really matter all that much.

I'd always rather have the 6 speed.

humfrz · 06-25-2015, 09:32 PM

Quote:

Originally Posted by Tcoat

Why not go hog wild and just have 3?

Exactly, for years we got along just fine with 3 speed MTs. The first AT in Chevrolets had only two speeds.

When I had my 06 Miata, I got along just fine with a 5 speed MT, and it had less power than the FR-S.

What I would like to see come back is the old Ford type "overdrive" .....

humfrz

soulreapersteve · 06-25-2015, 09:34 PM

Quote:

Originally Posted by humfrz

Exactly, for years we got along just fine with 3 speed MTs. The first AT in Chevrolets had only two speeds.

When I had my 06 Miata, I got along just fine with a 5 speed MT, and it had less power than the FR-S.

What I would like to see come back is the old Ford type "overdrive" .....

humfrz

Just for historical knowledge (and my learning), would 3rd gear be overdrive? Or was there no such thing back then?

8R6 · 06-25-2015, 09:37 PM

power band being "better" depends on the engine tuning in conjunction with the gearing... but that said, a similar 5-speed compared to a 6-speed on a same car will most likely have taller gearing than the 6-spd, resulting in slightly slower acceleration since we dont have much power to begin with.

Tcoat · 06-25-2015, 09:39 PM

Quote:

Originally Posted by humfrz

The first AT in Chevrolets had only two speeds.

humfrz

Slip N' Slide with Power Glide!
Hell, not just the first but clean up into the early/mid 70s.

billwot · 06-25-2015, 09:42 PM

Quote:

Originally Posted by MikeyBatz

5 speed gear pros:
-better power band?
-quicker acceleration

Can you provide any documentation to support these statements?

-easier in traffic (manual)

I really don't see why that would be true.

cons
-less mpg

what do you guys think?

DJCarbine · 06-25-2015, 09:46 PM

My first mustang had a 3 speed manual, made picking a gear pretty trivial

But really, I don't think you can find anyone to argue that a 5 speed gearbox would be better unless it was geared for a specific reason

GreenMonster · 06-25-2015, 09:46 PM

Even w/ a 6 speed, I still find myself occasionally trying to shift into seventh

humfrz · 06-25-2015, 09:47 PM

Quote:

Originally Posted by soulreapersteve

Just for historical knowledge (and my learning), would 3rd gear be overdrive? Or was there no such thing back then?

Back in the day, in most 3 speed MTs, the 3 gear was NOT overdriven ..... it was 1:1.

Some drivetrains had an "overdrove" unit that would make the ratio to the differential less than 1:1.

And, of course, we always have had the "Georgia overdrive" .......

humfrz

Tcoat · 06-25-2015, 09:52 PM

Quote:

Originally Posted by soulreapersteve

Just for historical knowledge (and my learning), would 3rd gear be overdrive? Or was there no such thing back then?

No. The 3rd gear was just a very long gear. Some came with OD as well though.

bcj · 06-26-2015, 01:58 AM

OD was a set of gears after the transmission that could be engaged to make the driveline turn faster than the engine crank.

"Overdrive Transmission" on wikipedia has a pile of info.

06-25-2015, 08:59 PM	#1
MikeyBatz Member Join Date: Oct 2014 Drives: Scion FR-S Location: Virginia Posts: 86 Thanks: 13 Thanked 76 Times in 19 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	The Twins better with 5 speed box? I was thinking would the frs/brz be better with a one less gear? I remember back in the day before the CVTs most subaru were 5 speed. 5 speed gear pros: -better power band? -quicker acceleration -easier in traffic (manual) cons -less mpg what do you guys think?

06-25-2015, 09:13 PM	#3
Tcoat Senior Member Join Date: Jul 2014 Drives: 2020 Hakone Location: London, Ont Posts: 69,841 Thanks: 61,656 Thanked 108,294 Times in 46,456 Posts Mentioned: 2499 Post(s) Tagged: 50 Thread(s)	Why not go hog wild and just have 3? __________________ Racecar spelled backwards is Racecar, because Racecar.

06-25-2015, 09:37 PM	#7
8R6 Senior Member Join Date: Jan 2014 Drives: FRS Location: SoCal Posts: 2,086 Thanks: 2,738 Thanked 1,338 Times in 746 Posts Mentioned: 30 Post(s) Tagged: 2 Thread(s)	power band being "better" depends on the engine tuning in conjunction with the gearing... but that said, a similar 5-speed compared to a 6-speed on a same car will most likely have taller gearing than the 6-spd, resulting in slightly slower acceleration since we dont have much power to begin with. __________________ Team BRG inspire-usa My car build #8R6

06-25-2015, 09:46 PM	#10
DJCarbine Thupercharged Join Date: Mar 2013 Drives: 2013 FR-S Location: La Grange Park, IL. Posts: 1,501 Thanks: 116 Thanked 751 Times in 439 Posts Mentioned: 23 Post(s) Tagged: 0 Thread(s)	My first mustang had a 3 speed manual, made picking a gear pretty trivial But really, I don't think you can find anyone to argue that a 5 speed gearbox would be better unless it was geared for a specific reason __________________ 2013 FRS Vortech V3 11psi Revworks UEL - PLM Overpipe - MOTIV catted frontpipe - Invidia Q300 2019 Series.Grey STI - Stage1+ SF

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06-25-2015, 09:10 PM	#2
Sideways&Smiling Senior Member Join Date: Aug 2013 Drives: AP2 S2000, S14 240sx Location: Tampa, FL Posts: 967 Thanks: 446 Thanked 484 Times in 288 Posts Mentioned: 9 Post(s) Tagged: 0 Thread(s)	no.

06-25-2015, 09:46 PM	#11
GreenMonster Just doing research Join Date: Mar 2014 Drives: 03 Acura CLS 6MT Location: Southeastern MA Posts: 331 Thanks: 91 Thanked 97 Times in 77 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Even w/ a 6 speed, I still find myself occasionally trying to shift into seventh

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