OFFICIAL transmission, LSD, gears, final drive, gearbox upgrade thread!!

[blinx9900]

i decided to put together a little spec sheet with all the parts available for b-series trans, gear sets, final drives, and complete gear boxes. i will attempt to give the specs of most parts, companies who offer them, and the websites you can get them from, anybody feel free to pm me info that is relevent and i will add it to the thread and credit you at the end also keep in mind the higher the number the shorter the gear, you can play with the gear calculator linked at the bottom of the page to get a better understanding.

this is not a "how it works thread" but feel free to ask any questions

FINAL DRIVE

Company: MFactory
Gear Ratio: 4.05, 4.785, and 4.928
Gear Material: Carburized Forged Nickel-Chromoly Steel
Retail Price: $549 standard (~400whp) or $749 for pro (~1000whp)
Contact: MFactory Competition Products - THE Honda / Acura Gearing Authority
note: Pro version FD is designed for high hp cars.

Company: Spoon Sports
Gear Ratio: 4.643 or /4.857
Gear Material: OEM Cast (~250whp)
Retail Price: $1340
Contact: Spoon Sports

Company: Quaife
Gear Ratio: 5.545, 5.700, or 5.818
Gear Material: Machine-Cut Chromoly Steel (~300whp)
Retail Price: $1295
Contact: Contact Us - Quaife Engineering
Note: recomended to be used with quaife gear set

Company: Carbonetic/ATS
Gear Ratio: 4.929
Gear Material: OEM Cast (~250whp)
Retail Price: $745
Contact: CARBON CLUTCH - CARBONETIC - ACROSS Official Website

Company: CircuitWorx
Gear Ratio: 4.416, 4.636, or 4.727
Gear Material: Machine-Cut Chromoly Steel (~300whp)
Retail Price: $895
Contact: CircuitWorx Racing Products-import and sport compact drive train parts for drag racing and competition use

Company: Erik's Racing
Gear Ratio: 4.785
Gear Material: OEM Cast (~250whp)
Retail Price: $450
Contact: Drive Train;B Series
Note: Erik's racing does ship to UK!!!!!
Note: If you prefer to get the parts from the dealership here are the part numbers, but be advised it will cost you DOUBLE!!!
41233-P80-E30 4.785 DIFERENTIAL RING GEAR
23421-P80-E30 COUNTERSHAFT FIRST GEAR
91107-P80-E30 FIRST GEAR NEEDLE BEARING (you will need 2)
91211-P21-008 DAMPER FRICTION
23914-P80-E30 COLLAR RING
23221-P80-E30 4.785 COUNTERSHAFT

Company: OS Giken
Gear Ratio: 4.267, 4.533, 4.643, or 4.929
Gear Material: Forged Chromoly Steel (~300whp)
Retail Price: unknown
Contact: OS GIKEN^»•iˆÄ“à


Company: SAENZ
Gear Ratio: TBA
Gear Material: TBA
Retail Price: TBA
Contact: http://www.saenzperformance.com/new_prod/index.asp
Note: the saenz FD is still in developement and has not been released yet.

Gear Sets

Company: MFactory
Gear Ratio (~400whp):
1st stock or optional 3.070
2nd stock
3rd 1.625 or 1.695
4th 1.296 or 1.384 (Slight modification required to trans casing when installing 1.384)
5th 1.000 or 1.130 or 1.210

PRO version also available for Drag Racing (~1000whp):
1st: Optional 3.070
2nd: Stock
3rd: Straight-Cut 1.430
4th: Straight-Cut 1.100
5th: Stock

Engagement: Synchro
Gear Material: Carburized Forged Nickel-Chromoly Steel
Retail Price: $250 for 1st, $750/$800 for Close Gear Sets. $1500 for PRO Drag Racing Set
Contact: MFactory Close Ratio Gears


Company: Quaife
Gear Ratio (~400whp):
1st 2.428
2nd 1.812
3rd 1.421
4th 1.174
5th 1.000
note: see final drive section for matching FD.
Engagement: Dog
Gear Material: Machine-Cut Chromoly Steel
Retail Price: $6695
Contact: Contact Us - Quaife Engineering

Company: Kaaz
Gear Ratio :
1st 2.667
2nd 2.118
3rd 1.682
4th 1.333
5th 1.069
Engagement: Synchro
Gear Material: unk
Retail Price: unk
Contact: Kaaz USA Products

Company: OS Giken
Gear Ratio (~400whp):
1st 2.818
2nd 2.000
3rd 1.471
4th 1.136
5th 0.926
Engagement: Synchro
Gear Material: Forged Chromoly Steel
Retail Price: ~$2200
Contact: OS GIKEN^»•iˆÄ“à

Company: Carbonetic/ATS
Gear Ratio (~250whp):
1st 3.077
2nd 2.102 (factory honda 2nd gear)
3rd 1.652
4th 1.308
5th 1.033
Engagement: Synchro
Gear Material: OEM Cast
Retail Price: $1497
Contact: CARBON CLUTCH - CARBONETIC - ACROSS Official Website


Company: Pfitzner Performance Gearbox
Gear Ratio (~400whp):
1st 2.428
2nd 1.813
3rd 1.421
4th 1.174
5th 1.000
note: includes 5.545 final drive
Engagement: Synchro/Dog
Gear Material: Machine Cut Chromoly Steel
Retail Price: ~$4000/$6000
Contact: http://www.ppgearbox.com.au/default.htm

Company: Spoon Sports
Gear Ratio (~250whp):
1st 2.533
2nd 1.944
3rd 1.591
4th 1.280
5th 1.033
Engagement: synchro
Gear Material: OEM Cast
Retail Price: $2620
Contact: Opak Racing

Company: GearSpeed
Gear Ratio: Various Options
Engagment: Synchro
Gear Material: Various Options
Retail Price: Variable on work done
Contact: >>>Welcome To GearSpeedInc.com<<<

Company: Magnus Motorsports
Gear Ratio (~400whp):
1st 3.18
2nd 2.07
3rd 1.45
4th 1.09
5th N/A 4 speed only.
note: optional final drives 4.5, 4.7, and 4.9
Engagement: Dog
Gear Material: Machine Cut Chromoly Steel
Retail Price: $5475
Contact: http://www.magnusmotorsports.com/tra...ions/honda.htm

Company: Erik's Racing (Rebranded PAR)
Gear Ratio: Variable to each customer
Engagement: Dog
Gear Material: Machine Cut Chromoly Steel
Retail Price: $6000 no differential is included.
Contact: ERE Dog Gears

if your looking for info on STOCK gear ratio's check this thread:
EK9.org: B-Series Transmission Guide


Complete After Market Gearbox

Company: MFactory
Gear Ratio: Variable
Engagement: Synchro
Gear Material: Carburized Forged Nickel-Chromoly Steel
Retail Price: Varies with options, see contact link below
Contact: MFactory Race Transmissions

Company: GearSpeed
Gear Ratio: Variable
Engagment: synchro
Gear Material: Variable
Retail Price: variable on work done
Contact: >>>Welcome To GearSpeedInc.com<<<

Company: Xtrac
Gear Ratio: 62 different ratio's to choose from
Engagement: Sequential
Gear Material: X36C
Retail Price: $18,120
Contact: Xtrac - Transmission Technology

Company: G-Force Transmissions GT-50 drag transmission
Gear Ratio: 64 ratios to choose from
Engangement: Variable
Gear Material: Machine Cut Chromoly Steel
Retail Price: $10k+
Contact: G-Force Transmissions and Long Shifters


Company: SAENZ
Gear Ratio: TBA
Engagement: TBA
Gear Material: TBA
Retail Price: TBA
Contact: http://www.saenzperformance.com/new_prod/index.asp
Note: the saenz transmission is still in developement and has not been released yet.

LSD

Company: MFactory
Type: Gear Type
Retail Price: $600
Contact: Contact Us - Team MFactory

Company: Kaaz
Type: 1.5 way Clutch type
Retail Price: $950
Contact: Kaaz USA Products

Company: Quaife
Type: Gear Type
Retail Price: $1050
Contact: Contact Us - Quaife Engineering

Company: Spoon Sports (Rebranded ATS)
Type: Clutch Type
Retail Price: $1165
Contact: Spoon Sports

Company: Cusco type MZ
Type: 1.5 way clutch type
Retail Price: $1200
Contact: Nukabe Automotive -- LSD Type MZ 1.5, EK-H/DC2, CIVIC-INTEGRA

Company: Cusco type RS
Type: 1 way clutch type
Retail Price: $1250
Contact: Nukabe Automotive -- LSD Type RS 1, EK/DC, CIVIC-INTEGRA

FLYWHEELS

Company: Exedy
Weight: 9.5lbs
Material: Forged Chromoly Steel
Cost: $360
Contact: Acura-Options Auto Salon


Company: Cusco
Weight:
Material: Chromoly
Cost: $500
Contact: Nukabe Automotive 1-888-591-6277 Cusco Master Distributor


Company: Fidanza
Weight: 7 lbs
Material: aluminum
Cost: $259
Contact: Fidanza Flywheel & Performance Parts


Company: ACT
Weight: 12.5lbs or 8.8 lbs
Material: Forged Chromoly Steel
Cost: $260 or $290
Contact: ACT / Advanced Clutch Technology®


Company: RPS
Weight: 9.5lbs
Material: Aluminum
Cost: $475
Contact: RPS CYN-R-G Flywheels


Company: Clutchmasters
Weight: 8Lb
Material: 6061-T6 aircraft grade aluminum
Cost: $299
Contact: Clutchmasters.com - High Performance Clutches and Flywheels

Parts/Misc

Company: GearSpeed
Parts offered: OEM and after market Syhcro sets, carbon sets, gear sets. lsd's, etc...
Contact: >>>Welcome To GearSpeedInc.com<<<

Company: Eriks Racing
Parts offered: complete dog engagement gearbox, carbon synchro sets, LSD, clutches.
Contact: ERE Dog Gears

THIS THREAD IS A WORK IN PROGRESS, I WILL UPDATE IT AS SOON AS I HAVE MORE TIME

HELPFUL LINKS
-more info on MFactory parts can be found on rvm's thread: http://www.ek9.org/forum/resource-a...ged-final-drives-close-gears-information.html

-gear ratio calculator below, you can plug in all the info on this page and it will tell you top speed in each gear etc...: MFactory Gear Ratio Calculator - Honda/Acura & More

-info on stock gear ratios: EK9.org: B-Series Transmission Guide

THANKS
Dino-Spumoni for reminding me of the Chet Hewitt thread
RVM for providing part number for OEM FD
MFactory for adding info average whp ratings and materials used

 

[rvm]

Great thread! thanks for sharing this information! Sticky!!!

 

[SpoonCTR]

great thread! thanks!

 

[blinx9900]

thanks guys, its far from finished though... i plan to add drag spools after LSD.

 

[blinx9900]

cusco and spoon LSD info added

 

[blinx9900]

gear ratio calculator added.

 

[haitch]

Very handy thread m8.

 

[blinx9900]

Very handy thread m8.

thank you!! saenz info added!! waiting from an email from them to get the specs, if anybody can think of parts i left out please pm me

 

[vtecroadhog]

thanks for putting all this info together... many good contacts!

 

[nitro_heat97]

Hi, I just bought an EK9. Just wana know what's the specs of EK9 gear box.
Isit comes with 4.785 final drive & close gear ratio ?

 

[rvm]

Hi, I just bought an EK9. Just wana know what's the specs of EK9 gear box.
Isit comes with 4.785 final drive & close gear ratio ?

It comes with a 4.40 Final drive, and no close gear ratio

You should buy a 4.78 final drive, (integra type r 98 spec one) your call will rev up faster

 

[nitro_heat97]

It comes with a 4.40 Final drive, and no close gear ratio

You should buy a 4.78 final drive, (integra type r 98 spec one) your call will rev up faster

I forgot to ask another thing is does it comes with LSD ?

 

[Teamdiesel]

don't forget about Mfactory final drives and gears. They are forged. I use their 4.785 in my car.

 

[blinx9900]

don't forget about Mfactory final drives and gears. They are forged. I use their 4.785 in my car.

thanks for reminding me, i just saw there stuff recently, but they are a newer company arent they? i will add there info in the next few days....

 

[rvm]

I forgot to ask another thing is does it comes with LSD ?

Thats correct, the ek9 gearbox comes with helical lsd

 

[blinx9900]

magnus motorsports transmission info added.

 

[MFactory]

Would it be okay to add our options here?

 

[rvm]

Would it be okay to add our options here?

You have your own thread here

http://www.ek9.org/forum/resource-a...ged-final-drives-close-gears-information.html

 

[MFactory]

woot, thanks

 

[blinx9900]

Would it be okay to add our options here?

i was going to add your parts to the thread but there is a minor bug right now and im not able to update this thread, i have not been able to add the magnus motorsports information either