Short Gearing on a 2000 Honda Civic Si UPDATED

Short Gearing on a 2000 Honda Civic Si

06-29-2013, xi:41 PM	#ane (permalink)
Cyborg ECU Join Date: Mar 2011 Location: Coastal Southern California Posts: 6,297 Thanks: ii,373 Thanked ii,157 Times in 1,463 Posts	Honda Manual Transmission Specifications & Gear Ratios Borough (Quaternary-7th Generation), FIT (Showtime & 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 tin can. If I made errors let me know. See sources notation at stop of postal service. CIVIC (Quaternary GENERATION) Year & trim level OEM engine lawmaking VSS / Speedo gear OEM bike / tire 1st Gear 2nd 3rd fourth fifth Reverse Final Bulldoze 1988-1991 Civic base model D15B1 1,026rpm VSS cable = 60mph 155/80-R13 3.250 one.650 1.033 0.823 - 3.153 3.888 88-91 Borough DX Sixty / CRX D15B2 ane,026rpm VSS cable = 60mph 175/lxx-R13 3.250 1.894 i.259 0.937 0.771 3.153 iii.722 (88 only) & iii.888 (89-91) / 4.058 DX Carriage 88-91 Civic Si / CRX Si D16A6 i,026rpm VSS cable = 60mph 185/threescore-R14 3.250 ane.894 one.259 0.937 0.771 3.153 4.250 88-91 CRX HF D15B6 1,026rpm VSS cable = 60mph 165/70-R13 3.250 one.650 ane.033 0.823 0.694 3.153 two.95/3.250 (CA) Notes: Trans code for all trim levels is L3 (utilize this for parts and specs ID). 4th gen Civic trannys have cable clutches, but they tin can exist modified to fit the later Civic shifters. I EM member successfully swapped an HF trans onto a fifth gen (VX) engine in his 4th gen Civic body. But the mountain for the transmission changed later the fourth generation, so while a fifth/fourth gen engine/trans combination fits into a fourth gen car, the transmission mount would accept to be made for that aforementioned pair to fit into later on Civics. The HF transmission--and maybe the others--had a shorter counter shaft and a different ring gear than the 92-00 Civics. In that location was also a JDM DOHC CRX with shorter gearing than any of these listed here. Honda used white big diameter (40mm) speedo gear in the 88-89 transmissions, but also a few take shown upward in 96-00 EX transmissions. CIVIC (Fifth GENERATION) Year & trim level OEM engine lawmaking VSS / Speedo gear OEM bicycle / tire 1st Gear 2nd tertiary 4th 5th Reverse Last Drive 1992-1995 Civic DX Lx / Del Sol S D15B7 1026rpm=60mph (VSS) / 90.6mm (Speedo) 175/lxx-R13 (DX&Lx) iii.250 1.761 i.172 0.909 0.702 three.153 4.058 92-95 Civic Si/ EX / Del Sol Si D16Z6 VTEC 1026rpm=60mph (VSS) / xc.6mm (Speedo) 185/sixty-R14 or 175/65-R14 iii.250 1.900 1.250 0.909 0.750 Si Hatch & Del Sol Si / 0.702 2dr & four dr iii.153 four.250 92-95 Civic CX/VX D15B8 (CX) D15Z1 (VX) 1026rpm=60mph (VSS) / 90.6mm (Speedo) 165/70-R13 3.250 i.761 1.066 0.853 0.702 3.153 3.250 Notes: Trans code S20 on sticker (P20 stamped on housing). All have hydraulic clutches. All 1992-2000 trans accept one of two speedo gears: EX/Si/HX use �large bore� black one and others use white one but outer bore is the same. Honda had used white big bore (40mm) speedo gear in the 88-89 transmissions and a few have shown up in 96-00 EX transmissions. 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 6th gen next annotation below. CIVIC (SIXTH GENERATION) Year & trim level OEM engine code VSS / Speedo gear OEM wheel / tire 1st Gear second 3rd fourth 5th Opposite Terminal Bulldoze 1996-2000 Borough DX Lx D16Y7 1025rpm=60pmh (VSS) / 90.6mm (Speedo) 185/65-R14 three.250 i.782 ane.172 0.909 0.702 three.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-R14 3.250 ane.782 one.172 0.909 0.702 3.153 3.722 96-00 Civic EX D16Y8 VTEC (D16Z7) 1025rpm=60pmh (VSS) / xc.6mm (Speedo) 185/65-R14 iii.250 1.909 1.250 0.909 0.702 3.153 4.250 Sdn & Cpe Notes: Trans example code S40 (on white sticker, used for parts ID). All 6th gen Civics had hydraulic clutches. All 1992-2000 trans have i of 2 speedo gears: EX/Si/HX employ �big bore� blackness 1 and others utilize white one only outer diameter is the aforementioned. Honda had used white large bore (40mm) speedo gear in the 88-89 transmissions and a few have shown up in 96-00 EX transmissions. A previous version of this mail listed a 96-00 HB EX with FD 4.058 merely it seems not to have been sold in the USDM. IDENTIFYING RATIOS (Example iii.722 final bulldoze). Get an quondam clutch, mark it, & place the mark at apex. Select 4th gear (0.909). Mark differential. 3.722 * 0.909 = 3.38, so clutch should do 3.38 revs for i rev of differential & clutch stopping 4 o�clock. CIVIC (7th GENERATION) Year & trim level OEM engine lawmaking VSS / Speedo gear OEM wheel / tire 1st Gear 2nd tertiary quaternary 5th Reverse Terminal Drive 01-05 Civic D17A1 - 185/lxx-R14 3.462 1.870 1.241 0.970 0.711 3.231 iv.111 01-05 Civic HX D17A6 VTEC-E - 185/lxx-R14 3.461 1.750 1.166 0.857 0.710 3.230 3.842 01-05 Borough EX D17A2 VTEC - 185/65-R15 three.143 1.870 1.241 0.970 0.757 3.231 iv.412 (also 4.111) 2003-2005 Civic Hybrid LDA1 (1.3L & IMA) - 185/70-R14 3.462 1.870 one.241 0.912 0.711 3.231 3.600 Notes: The EX final drive ratio is listed at honda.com with both the four.111 terminal drive and 4.412 final bulldoze, depending on which yr i checks. All seventh gen Civics had hydraulic clutches, but with cable shifters instead of the shift rods the 5th 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 just complicated by the differences in shifters and the seventh gen Civic's immobilizer. Wiring and shifter adaptation might exist required. FIT (Showtime GENERATION) Year & trim level OEM engine lawmaking VSS / Speedo gear OEM bike / tire 1st Gear 2nd tertiary fourth 5th Opposite Concluding Drive 2007 & 2008 Fit / Fit Sport L15A1 2-stage i-VTEC - 175/65-R14 (base of operations) 195/55-R15 (Sport) 3.462 1.870 ane.321 0.970 0.757 iii.230 (3.231 in 2008) 4.294 (JDM 4.1) Notes: Trans lawmaking SMJM These transmissions do non commodities onto D-series Civics. FIT (2nd GENERATION) Twelvemonth & trim level OEM engine code VSS / Speedo gear OEM wheel / tire 1st Gear second 3rd 4th 5th Contrary Terminal Bulldoze 09-xi Fit / Fit Sport L15A7 three-stage i-VTEC - 175/65 -R15 (base) 185/55-R16 (Sport) 3.308 1.870 1.303 0.949 0.727 3.308 four.62 2012 & 2013 Fit/ Fit Sport L15A7 three-stage i-VTEC - 175/65 -R15 (base) 185/55-R16 (Sport) 3.308 1.870 1.303 0.949 0.727 iii.308 4.625 Notes: Trans code SMJM These transmissions exercise non bolt onto D-series Civics. INSIGHT (FIRST GENERATION) Year & trim level OEM engine code VSS / Speedo gear OEM bike / tire 1st Gear second third quaternary 5th Contrary Concluding Drive 00-06 Insight Hybrid ECA1 - 165/65SR-14 three.461 i.750 ane.096 0.857 0.710 3.230 iii.208 Civic CRX fourth Gen Trans Standards and Service Limits (from Honda FSM) Civic fifth Gen Trans Standards and Service Limits (from Honda FSM) Borough 6th Gen Trans Standards and Service Limits (from Honda FSM) Civic 7th Gen Trans Standards and Service Limits, p.1 of two (from Honda FSM) Civic seventh Gen Trans Standards and Service Limits, p.two of 2 (from Honda FSM) SOURCES : Borough: All Civic engine codes from Wikipedia �d-series� entry (June 22, 2013). Borough 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 past Honda-tech.com member �94EG8� (posted March 27, 2013). 88-89 EX white large bore speedo gear & its utilise in some 92-00 transmissions as described by "Mista Bone" here on Ecomodder.com (Sept. 10, 2019). Seventh Gen Civic trans case code information from AMSOIL'due south �my garage� database (June 25, 2013). Many of the 4th-6th trans ratios are every bit listed at this chart (accessed March 27, 2013). Fourth Gen Civic Carriage final drive info is the 1990 Borough Railroad vehicle Transmission (2wd & 4wd) equally cited past ecomodder.com member "Gasoline Fumes" in a PM (July 4, 2013). 7th generation trans ratios from Honda.com (accessed June 22, 2013, March eighteen, 2019). Civic Hybrid manual ratios as posted by Cleanmpg.com member "xcel" (3-xiv-2006, accessed July ane, 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 i, 2013). All Fit trans lawmaking information is from AMSOIL'southward �my garage� database (June 25, 2013). Gear ratio test information is from member "90civicstdgold" at ecomodder.com (posted July 2012, accessed Feb 1, 2013). INSIGHT: Transmission gear ratios from 2000-2006 Insight Factory manual equally institute in "HondaInsightPDFs.zilch" at Uncomplicated File Sharing and Storage. (accessed 7-7-2013) __________________ See my car's mod & maintenance thread and my electric bicycle'south 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 by and large top 60 mpg. Run across also my Honda manual manual specs thread. Terminal edited by California98Civic; 06-26-2020 at 08:50 PM.. Reason: Updates to notes on 4th gen transmissions

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06-xxx-2013, 10:32 AM	#ii (permalink)
EcoMod Proof of Concept Join Date: Mar 2008 Location: Chilliwack B.C. CANADA Posts: 243 Thanks: 80 Thanked 84 Times in 44 Posts	Thanks for the info California98Civic. So at present I need to look for a 88-91 CRX HF D15B6 v speed transmission ... I read that the 88 has different spline, and then 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 come across a few on CL in the U.s., but none in Canada yet, but I volition be searching. __________________ 2000 Insight MT 106K Citrus A/C

06-30-2013, 03:23 PM	#3 (permalink)
Cyborg ECU Join Date: Mar 2011 Location: Coastal Southern California Posts: half-dozen,297 Thanks: ii,373 Thanked ii,157 Times in 1,463 Posts	Quote: Originally Posted by WD40 Thanks for the info California98Civic. So now I demand to look for a 88-91 CRX HF D15B6 5 speed transmission ... I read that the 88 has dissimilar spline, so information technology would need a matching clutch. Other years match the VX clutch. The deviation 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 equally I currently become approx. 80-95 MPG at 56. I see a few on CL in the U.s.a., only none in Canada still, merely I will exist searching. If that chance does non 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 last 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, every bit they are for 5th and 6th gen Civics. Since the Cali HF trannys had the same final bulldoze equally the VX, I wonder if the 2.95 terminal bulldoze from the VX would bandy. That would give you lot well-nigh all of the RPM change yous describe. It would be a bigger job maybe, only could be interesting also. __________________ Run into my car'southward modern & maintenance thread and my electric bicycle'south thread for ongoing projects. I volition rebuild Black and Green over decades every bit parts die, until information technology becomes a different machine of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally height threescore mpg. See as well my Honda manual transmission specs thread.

06-thirty-2013, 04:23 PM	#iv (permalink)
EcoMod Proof of Concept Join Date: Mar 2008 Location: Chilliwack B.C. CANADA Posts: 243 Cheers: fourscore Thanked 84 Times in 44 Posts	A quick google got me this answer .. The Ring gear is the aforementioned simply 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. __________________ 2000 Insight MT 106K Citrus A/C

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06-30-2013, 07:37 PM	#5 (permalink)
Cyborg ECU Bring together Date: Mar 2011 Location: Coastal Southern California Posts: half dozen,297 Thanks: ii,373 Thanked 2,157 Times in one,463 Posts	Quote: Originally Posted by WD40 A quick google got me this answer .. The Band gear is the aforementioned but the countershafts are different. The 88-91 HF C/Southward is shorter than the 92-95 VX and has a shorter begetting department for the 1st gear. Cheers. I found that opinion on honda-tech just now, post-obit your pb. Synchrotech is an splendid dominance, and so I edited the OP. __________________ Come across my car's mod & maintenance thread and my electrical wheel'southward thread for ongoing projects. I volition rebuild Black and Light-green over decades as parts die, until information technology becomes a unlike automobile of roughly the same shape and color. My minimum fuel economic system goal is 55 mpg while averaging posted speed limits. I mostly top 60 mpg. See also my Honda manual manual specs thread.

07-01-2013, 03:46 PM	#6 (permalink)
Thalmaturge Bring together Date: Mar 2011 Location: The border of nowhere Posts: 1,138 Thank you: 714 Thanked 625 Times in 413 Posts	Jeez, just look at what they've been doing to the Fit M/T! Peak gear ratio only gets worse and worse from 2007. Sam

07-01-2013, 04:15 PM	#7 (permalink)
Hypermiler Join Date: Dec 2007 Location: Texas Posts: 2,320 Thank you: 611 Thanked 428 Times in 280 Posts	Actually?!! I didn't realize they farther shortened the final bulldoze in the '12 model Fit. Makes sense (in the weird honda engineer globe) considering they added some sound-proofing weight. For the tape, the 1st gen Fit went from 2002(3?) to 2008, but was only here in the The states for 07-08. '12 is a cosmetic makeover of the 2nd gen which started in 09. Aye. The gear ratios are bad. It's astonishing what you lot tin can overcome with pulse & glide, though. __________________ xi-mile commute: 100 mpg - - - Tank: ninety.2 mpg / 1191 miles

07-01-2013, 05:23 PM	#8 (permalink)
Cyborg ECU Join Date: Mar 2011 Location: Littoral Southern California Posts: half-dozen,297 Cheers: 2,373 Thanked 2,157 Times in i,463 Posts	Quote: Originally Posted past samwichse Jeez, merely look at what they've been doing to the Fit Yard/T! Peak gear ratio merely gets worse and worse from 2007. Sam Right? Makes you wonder what tin can be done with custom gearing or meliorate even so whether 1990s gears, whatsoever of them, might exist adaptable, swappable. Quote: Originally Posted by PaleMelanesian Really?!! I didn't realize they farther shortened the concluding bulldoze in the '12 model Fit. Makes sense (in the weird honda engineer world) because they added some sound-proofing weight. Amazing to encounter it tabulated similar this, huh? Brings clarity. But if y'all could combined the 07/08 FD with the 09-present 5th gear, you'd be shut to a 1990s Civic DX (but non quite there). Quote: Originally Posted by PaleMelanesian For the record, the 1st gen Fit went from 2002(3?) to 2008, simply was only here in the USA for 07-08. '12 is a cosmetic makeover of the second gen which started in 09. Exercise yous have a citation? Because when I looked into information technology, I found claims that the 07 model year introduced here in late '06 is regarded equally second generation. I don't really believe that, and my gut agrees with y'all, but I saw not evidence other than how I might interpret the apparent changes in the gearing. Quote: Originally Posted past PaleMelanesian Aye. The gear ratios are bad. It'southward amazing what you can overcome with pulse & glide, though. __________________ Run across my car'southward mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades every bit parts dice, until it becomes a dissimilar car of roughly the same shape and colour. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I by and large top lx mpg. See likewise my Honda manual transmission specs thread.

07-01-2013, 05:37 PM	#ix (permalink)
Hypermiler Bring together Appointment: December 2007 Location: Texas Posts: 2,320 Thanks: 611 Thanked 428 Times in 280 Posts	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 twelvemonth. The second generation Fit for the North American market place was unveiled on 19 March 2008, at the 2008 New York International Auto Evidence for the 2009 model yr. Oh, and the 1st generation engine is coded L15A1. Information technology'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 alter the final drive for the 2012 mid-cycle refresh. (four.62 to iv.625) http://automobiles.honda.com/fit/specifications.aspx http://automobiles.honda.com/tools/five...ModelYear=2008 __________________ 11-mile commute: 100 mpg - - - Tank: xc.ii mpg / 1191 miles Concluding edited by PaleMelanesian; 07-01-2013 at 05:50 PM..

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07-01-2013, 05:52 PM	#10 (permalink)
Hypermiler Join Appointment: December 2007 Location: Texas Posts: 2,320 Thank you: 611 Thanked 428 Times in 280 Posts	Oh, and for the D-serial transmissions, couldn't they stamp a unlike code on them? Why mark all the different ratio transmissions with the aforementioned lawmaking? Grrrr. __________________ eleven-mile commute: 100 mpg - - - Tank: 90.ii mpg / 1191 miles

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Short Gearing on a 2000 Honda Civic Si UPDATED

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