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#1
10-05-2002, 11:53 AM
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CRX 5 speed tranny swap HF to SI
Will a 5 speed transmission from a 1991 HF swap over with no problems to a 1990 SI? Are they the same transmission? Will I be able to tell a difference in the two?
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#2
10-05-2002, 12:37 PM
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should bolt right up. i can't see any reason it wouldn't. i took my 5 speed d16a6 out of the Si and into an auto LX 4 door. using my d16a6 tranny with a d16y8 i have never had an HF tranny...but it's been my experience that all the D series trannys will bolt up to any of the d series blocks (including the newer d16z6 92-95 Si/EX and d16y8 96-00 EX).
you don't get into fabercation until you go from MT to AT or the other way around you'll love that Si tranny!!! :jump:
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"hi! my name is Lady, and i'm a HONDA-holic" ..don't make me send Setanta over in his Waambulance to give you an aloe tissue for your sensitive nose!  *~  ~> USeR GUiDELiNeS*<~ ~*I <3 the G Ride ~*~ I <3 OLD SKooL
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#3
10-05-2002, 07:48 PM
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The HF was designed as an economy model (great gas mileage). The Si was the what the US got for a "performance" model in the 4G civic & 2G CRX. If I understood you correctly...you want to take out your Si trans, and replace it with the HF trans right? If that's what you meant then when you install the HF trans you will now be geared for good gas mileage rather than accleration/performance. You will be able to tell a difference and it definately will not make your car perform any better (acceleration wise). Expect better gas mileage out of your D16A6 tho.
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FLINT BLACK 1990 CRX SI Appearance Mods: -JDM EF8 CR-X SiR Spoiler -94/95 Integra GS-R rims Performance Mods: -JDM B18C swap -OBD1 conversion -Chipped P28 ECU -Skunk2 Intake Manifold -DC Sports 4-2-1 Header -MSD SCI-L ignition -EXEDY Racing Clutch Interior Mod -'95 Integra GS-R Gauge Cluster Former Motors - RIP: -JDM B16A #1- Blew up due to over-revving -JDM B16A #2 - Hydrolocked Former Cars  '89 CRX Si - "The Bumblebee" '94 Integra GS-R '96 Camaro
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#4
10-05-2002, 10:28 PM
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it will work
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********** My 94 SS ********** 90 civic dx 4 door d16z6 - p28, aem intake, act stage one clutch, cheap header- commuter car
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#5
10-07-2002, 10:59 AM
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im gonna have to agree with my buddy mr fishcat, the hf tranny will bolt up due to the fact they are both d series trannys. but why would u want to throw away the mest up gearing of the si tranny. the hf is designed to get u the greatest gas mileage possibele. the si tranny is built to move. especially the third gear. man does that thing pull.
  . but hopefully what ever u do it all works out.
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:smoker2:kaytec4door:smoker2: mods done: AEM cold air intake, ractive racing cat, ractive axel back exhaust, NGK plugs, nuespeed cross-drilled rotors, EBC the green stuff pads, projecter headlights, clear corners, carbon fiber tails, Z3 fenders, adjustable coilovers, Konig flatline rims with dunlop fm901 (17*7), full complete sound system with two 10'' subs, kenwood 600w amp, punch cap, pionner speakers all the way around, full custom interior paint job, reverse indiglo guages, aluminum gauge bezel, d16a6 head swap polished, 4-2-1 ceramic coated header, :finger4: proud member of team kay tec:finger4:
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#6
08-04-2004, 09:36 PM
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Re: CRX 5 speed tranny swap HF to SI
if there is anyone that knows anything about wiring the zc v-tech SOCH into a 89 crx hf please help I need it pppllllllleeeeeaaaasssssseeee. If there is any one out there that can answer my prayers e-mail me at [email protected]
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