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Old 06-29-2013, 10:41 PM   #1 (permalink)
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Honda Manual Transmission Specifications & Gear Ratios

CIVIC (Fourth-Seventh Generation), FIT (First & Second Generation), and INSIGHT (First Generation).

All info is for the US domestic market unless otherwise noted, such as "JDM" (Japanese Domestic Market). I will edit, correct, and expand this information when I can. If I made errors let me know. See sources note at end of post.





CIVIC (FOURTH GENERATION)
Year & trim levelOEM engine codeVSS / Speedo gearOEM wheel / tire1st Gear2nd3rd4th5thReverseFinal Drive
1988-1991 Civic base modelD15B11,026rpm VSS cable = 60mph155/80-R133.2501.6501.0330.823-3.1533.888
88-91 Civic DX LX / CRXD15B21,026rpm VSS cable = 60mph175/70-R133.2501.8941.2590.9370.7713.1533.888 / 4.058 DX Wagon
88-91 Civic Si / CRX SiD16A61,026rpm VSS cable = 60mph185/60-R143.2501.894 1.2590.9370.7713.1534.250
88-91 CRX HFD15B6 1,026rpm VSS cable = 60mph165/70-R133.2501.6501.0330.8230.6943.1532.95/3.250 (CA)
Notes: Trans code for all trim levels is L3 (use this for parts and specs ID). 4th gen Civic trannys have cable clutches, but they can be modified to fit the later Civic shifters. One EM member successfully swapped an HF trans onto a fifth gen (VX) engine in his 4th gen Civic body. But the mount for the transmission changed after the fourth generation, so while a fifth/fourth gen engine/trans combination fits into a fourth gen car, the transmission mount would have to be fabricated for that same pair to fit into later Civics. The HF transmission--and maybe the others--had a shorter counter shaft and a different ring gear than the 92-00 Civics.
There was also a JDM DOHC CRX with shorter gearing than any of these listed here.





CIVIC (FIFTH GENERATION)
Year & trim levelOEM engine codeVSS / Speedo gearOEM wheel / tire1st Gear2nd3rd4th5thReverseFinal Drive
1992-1995 Civic DX LX / Del Sol SD15B7 1026rpm=60mph (VSS) / 90.6mm (Speedo) 175/70-R13 (DX&LX)
3.250 1.761 1.172 0.909 0.7023.1534.058
92-95 Civic Si/ EX / Del Sol Si D16Z6 VTEC 1026rpm=60mph (VSS) / 90.6mm (Speedo) 185/60-R14 or 175/65-R14 3.250 1.900 1.250 0.909 0.750 Si Hatch & Del Sol Si / 0.702 2dr & 4 dr 3.1534.250
92-95 Civic CX/VX D15B8 (CX) D15Z1 (VX) 1026rpm=60mph (VSS) / 90.6mm (Speedo) 165/70-R13 3.250 1.7611.066 0.853 0.7023.1533.250
Notes: Trans code S20 on sticker (P20 stamped on housing).
All have hydraulic clutches.
All 1992-2000 trans have one of two speedo gears: EX/Si/HX use “big bore” black one and others use white one but outer diameter is the same.
IDENTIFICATION: Look at the fill plug for a circle cast into the housing.
P20-A000 = DX, CX, VX trans & P20-B000 = Si, EX trans.
To ID use gear ratio test in sixth gen next note below.





CIVIC (SIXTH GENERATION)
Year & trim levelOEM engine codeVSS / Speedo gearOEM wheel / tire1st Gear2nd3rd4th5thReverseFinal Drive
1996-2000 Civic DX LX D16Y7 1025rpm=60pmh (VSS) / 90.6mm (Speedo) 185/65-R14 3.250 1.782 1.172 0.909 0.702 3.153 3.722 Hatch / 4.058 Coupe & Sedan
96-00 Civic HX CX D16Y5 (HX) & D16Y7 (CX) 1025rpm=60pmh (VSS) / 90.6mm (Speedo) 185/65-R143.250 1.782 1.172 0.909 0.702 3.153 3.722
96-00 Civic EX D16Y8 VTEC (D16Z7) 1025rpm=60pmh (VSS) / 90.6mm (Speedo) 185/65-R143.2501.909 1.250 0.909 0.702 3.153 4.058 Htch / 4.250 Sdn & Cpe
Notes: Trans case code S40 (on white sticker, used for parts ID).
All sixth gen Civics had hydraulic clutches.
All 1992-2000 trans have one of two speedo gears: EX/Si/HX use “big bore” black one and others use white one but outer diameter is the same.
IDENTIFYING RATIOS (Example 3.722 final drive). Get an old clutch, mark it, & place the mark at noon. Select 4th gear (0.909). Mark differential. 3.722 * 0.909 = 3.38, so clutch should do 3.38 revs for one rev of differential & clutch stopping 4 o’clock.





CIVIC (SEVENTH GENERATION)
Year & trim levelOEM engine codeVSS / Speedo gearOEM wheel / tire1st Gear2nd3rd4th5thReverseFinal Drive
01-05 Civic D17A1 - 185/70-R14 3.462 1.870 1.241 0.970 0.711 3.231 4.111
01-05 Civic HX D17A6 VTEC-E - 185/70-R14 3.461 1.750 1.166 0.857 0.710 3.230 3.842
01-05 Civic EX D17A2 VTEC - 185/65-R15 3.143 1.870 1.241 0.970 0.757 3.231 4.412
2003-2005 Civic HybridLDA1 (1.3L & IMA)-185/70-R143.4621.8701.2410.9120.7113.231 3.600
Notes: All seventh gen Civics had hydraulic clutches, but with cable shifters instead of the shift rods the fifth and sixth gen models had.
Trans case code SLW on sticker PLW on metal (Hybrid trans code SZB).
Successfully swapping seventh gen (2001-2005) civic engine or trans onto a fifth/sixth gen engine or trans is possible but complicated by the differences in shifters and the seventh gen Civic's immobilizer. Wiring and shifter adaptation might be required.



FIT (FIRST GENERATION)
Year & trim levelOEM engine codeVSS / Speedo gearOEM wheel / tire1st Gear2nd3rd4th5thReverseFinal Drive
2007 & 2008 Fit / Fit Sport L15A1 2-stage i-VTEC - 175/65-R14 (base) 195/55-R15 (Sport) 3.462 1.870 1.321 0.970 0.757 3.230 (3.231 in 2008) 4.294 (JDM 4.1)
Notes: Trans code SMJM
These transmissions do not bolt onto D-series Civics.




FIT (SECOND GENERATION)
Year & trim levelOEM engine codeVSS / Speedo gearOEM wheel / tire1st Gear2nd3rd4th5thReverseFinal Drive
09-11 Fit / Fit Sport L15A7 3-stage i-VTEC - 175/65 -R15 (base) 185/55-R16 (Sport) 3.308 1.870 1.303 0.949 0.727 3.308 4.62
2012 & 2013 Fit/ Fit Sport L15A7 3-stage i-VTEC - 175/65 -R15 (base) 185/55-R16 (Sport) 3.308 1.870 1.303 0.949 0.727 3.308 4.625
Notes: Trans code SMJM
These transmissions do not bolt onto D-series Civics.



INSIGHT (FIRST GENERATION)
Year & trim levelOEM engine codeVSS / Speedo gearOEM wheel / tire1st Gear2nd3rd4th5thReverseFinal Drive
00-06 Insight Hybrid ECA1 - 165/65SR-14 3.461 1.750 1.096 0.857 0.710 3.230 3.208


Civic CRX 4th Gen Trans Standards and Service Limits (from Honda FSM)

Civic 5th Gen Trans Standards and Service Limits (from Honda FSM)

Civic 6th Gen Trans Standards and Service Limits (from Honda FSM)

Civic 7th Gen Trans Standards and Service Limits, p.1 of 2 (from Honda FSM)

Civic 7th Gen Trans Standards and Service Limits, p.2 of 2 (from Honda FSM)

SOURCES:

CIVIC: All Civic engine codes from Wikipedia “d-series” entry (June 22, 2013). Civic VSS and tire size data from the 1988-1900 Honda CRX FSM, the 1990 Honda CRX FSM supplement, the 1992-1995 Honda Civic FSM, and the 1996-1998 Honda Civic FSM. Fourth gen countershaft note from "Synchrotech" on Honda-tech.com (posted July 28, 2009). Speedo gear sizes (1992-2000) are as described and measured by Honda-tech.com member “94EG8” (posted March 27, 2013). Seventh Gen Civic trans case code information from AMSOIL's “my garage” database (June 25, 2013). Many of the 4th-6th trans ratios are as listed at this chart (accessed March 27, 2013). Fourth Gen Civic Wagon final drive info is the 1990 Civic Wagon Manual (2wd & 4wd) as cited by ecomodder.com member "Gasoline Fumes" in a PM (July 4, 2013). Seventh generation trans ratios from Honda.com (accessed June 22, 2013). Civic Hybrid transmission ratios as posted by Cleanmpg.com member "xcel" (3-14-2006, accessed July 1, 2013). 2003-2005 Civic Hybrid hydraulic clutch identified using parts.sonshonda.com database (July 2, 2013).

FIT: All Fit gear ratio information is from Honda.com (June 23, 2013). All Fit engine info is from Wikipedia’s “L-Series” engine entry (June 23, 2013) and "Palemelanesian" on ecomodder.com (July 1, 2013). All Fit trans code information is from AMSOIL's “my garage” database (June 25, 2013). Gear ratio test information is from member "90civicstdgold" at ecomodder.com (posted July 2012, accessed February 1, 2013).

INSIGHT: Transmission gear ratios from 2000-2006 Insight Factory manual as found in "HondaInsightPDFs.zip" at Simple File Sharing and Storage. (accessed 7-7-2013)

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See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.


Last edited by California98Civic; 08-11-2014 at 01:54 PM.. Reason: Updates to notes on fourth gen transmissions
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Old 06-30-2013, 09:32 AM   #2 (permalink)
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Thanks for the info California98Civic.
So now I need to look for a 88-91 CRX HF D15B6 5 speed transmission ...
I read that the 88 has different spline, so it would need a matching clutch.
Other years match the VX clutch.
The difference in gearing would make 5th gear at 1700 RPM doing close to 56 vs the current 1900 RPM at close to 56.
That should pay for itself pretty fast as I currently get approx. 80-95 MPG at 56.
I see a few on CL in the USA, but none in Canada yet, but I will be searching.
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Old 06-30-2013, 02:23 PM   #3 (permalink)
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Quote:
Originally Posted by WD40 View Post
Thanks for the info California98Civic.
So now I need to look for a 88-91 CRX HF D15B6 5 speed transmission ...
I read that the 88 has different spline, so it would need a matching clutch.
Other years match the VX clutch.
The difference in gearing would make 5th gear at 1700 RPM doing close to 56 vs the current 1900 RPM at close to 56.
That should pay for itself pretty fast as I currently get approx. 80-95 MPG at 56.
I see a few on CL in the USA, but none in Canada yet, but I will be searching.
If that chance does not emerge because of costs related to getting both the trans in good condition and a clutch you could also look into whether the 4th gen HF final drive can swap into the fifth gen VX tranny. Now that I know the VSS gears in the 4th and fifth gen spin the same, I would bet the speedo gears are the same too, as they are for fifth and sixth gen Civics. Since the Cali HF trannys had the same final drive as the VX, I wonder if the 2.95 final drive from the VX would swap. That would give you nearly all of the RPM change you describe. It would be a bigger job maybe, but could be interesting too.
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See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.

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Old 06-30-2013, 03:23 PM   #4 (permalink)
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A quick google got me this answer ..
The Ring gear is the same but the countershafts are different. The 88-91 HF C/S is shorter than the 92-95 VX and has a shorter bearing section for the 1st gear.
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Old 06-30-2013, 06:37 PM   #5 (permalink)
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Quote:
Originally Posted by WD40 View Post
A quick google got me this answer ..
The Ring gear is the same but the countershafts are different. The 88-91 HF C/S is shorter than the 92-95 VX and has a shorter bearing section for the 1st gear.
Thanks. I found that opinion on honda-tech just now, following your lead. Synchrotech is an excellent authority, so I edited the OP.
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Old 07-01-2013, 02:46 PM   #6 (permalink)
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Jeez, just look at what they've been doing to the Fit M/T!

Top gear ratio just gets worse and worse from 2007.

Sam
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Old 07-01-2013, 03:15 PM   #7 (permalink)
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Really?!! I didn't realize they further shortened the final drive in the '12 model Fit. Makes sense (in the weird honda engineer world) because they added some sound-proofing weight.

For the record, the 1st gen Fit went from 2002(3?) to 2008, but was only here in the USA for 07-08. '12 is a cosmetic makeover of the 2nd gen which started in 09.

Yep. The gear ratios are bad. It's amazing what you can overcome with pulse & glide, though.
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Old 07-01-2013, 04:23 PM   #8 (permalink)
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Quote:
Originally Posted by samwichse View Post
Jeez, just look at what they've been doing to the Fit M/T!

Top gear ratio just gets worse and worse from 2007.

Sam
Right? Makes you wonder what can be done with custom gearing or better yet whether 1990s gears, any of them, might be adaptable, swappable.

Quote:
Originally Posted by PaleMelanesian View Post
Really?!! I didn't realize they further shortened the final drive in the '12 model Fit. Makes sense (in the weird honda engineer world) because they added some sound-proofing weight.
Amazing to see it tabulated like this, huh? Brings clarity. But if you could combined the 07/08 FD with the 09-present fifth gear, you'd be close to a 1990s Civic DX (but not quite there).

Quote:
Originally Posted by PaleMelanesian View Post
For the record, the 1st gen Fit went from 2002(3?) to 2008, but was only here in the USA for 07-08. '12 is a cosmetic makeover of the 2nd gen which started in 09.
Do you have a citation? Because when I looked into it, I found claims that the 07 model year introduced here in late '06 is regarded as second generation. I don't really believe that, and my gut agrees with you, but I saw not evidence other than how I might interpret the apparent changes in the gearing.

Quote:
Originally Posted by PaleMelanesian View Post
Yep. The gear ratios are bad. It's amazing what you can overcome with pulse & glide, though.
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See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.

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Old 07-01-2013, 04:37 PM   #9 (permalink)
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Quickest source I could find was wikipedia.
Quote:
Although the second generation Honda Fit was introduced in the Japanese market in 2007, the first generation Fit was still sold in the North American market for the 2008 model year. The second generation Fit for the North American market was unveiled on 19 March 2008, at the 2008 New York International Auto Show for the 2009 model year.
Oh, and the 1st generation engine is coded L15A1. It's a 2-stage i-VTEC with max 109 hp. The 2nd generation's L15A7 engine gets a 3-stage i-VTEC that boosts top power to 117 hp. (yay?)

I confirmed your gear ratio chart, though. They DID change the final drive for the 2012 mid-cycle refresh. (4.62 to 4.625)
http://automobiles.honda.com/fit/specifications.aspx
http://automobiles.honda.com/tools/v...ModelYear=2008
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Last edited by PaleMelanesian; 07-01-2013 at 04:50 PM..
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Old 07-01-2013, 04:52 PM   #10 (permalink)
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Oh, and for the D-series transmissions, couldn't they stamp a different code on them? Why mark all the different ratio transmissions with the same code? Grrrr.

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