HELP!! Any mods to put an Si tranny in a DX setup???

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Old Nov 21, 2002 | 09:26 PM
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dingusjt's Avatar
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From: Long Beach, CA
Default HELP!! Any mods to put an Si tranny in a DX setup???

Alright as you can see i have a d16z6 swap however i've been using my 89 DX tranny, and my car is originally DX, now do i have to modify anything in order to use a 91 Si tranny?

I NEED TO KNOW ASAP BECAUSE IM SUPPOSED TO BUY AN SI TRANNY TOMORROW MORN!!!
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Old Nov 21, 2002 | 09:46 PM
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Default Re: HELP!! Any mods to put an Si tranny in a DX setup??? (AltezaThug)

there is no difference between the Si trans and the DX trans except for the final drive everything will bolt right up
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Old Nov 22, 2002 | 04:23 AM
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Default Re: HELP!! Any mods to put an Si tranny in a DX setup??? (Vinceg99)

there is no difference between the Si trans and the DX trans except for the final drive everything will bolt right up
What he said.
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Old Nov 22, 2002 | 05:20 AM
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USDM 4G VTEC's Avatar
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Default Re: HELP!! Any mods to put an Si tranny in a DX setup??? (Vinceg99)

there is no difference between the Si trans and the DX trans except for the final drive everything will bolt right up
second that
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Old Nov 22, 2002 | 05:24 AM
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EP3_05's Avatar
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From: West Chester, PA, USA
Default Re: HELP!! Any mods to put an Si tranny in a DX setup??? (Vinceg99)

there is no difference between the Si trans and the DX trans except for the final drive everything will bolt right up
I will third that....haha
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Old Nov 22, 2002 | 05:28 AM
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Default Re: HELP!! Any mods to put an Si tranny in a DX setup??? (wannab20hatch)

You will need to buy the SI clutch as I believe the spline count on the DX and SI are different. The axles will fit no problem. Deffinately do the swap! I had a DX transmission on my '88 DX HB w/ZC and when I switched to the SI box it made a hugh difference in acceleration and top end throttle response.


[Modified by tpr, 2:30 PM 11/22/2002]
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Old Nov 22, 2002 | 05:30 AM
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From: West Chester, PA, USA
Default Re: HELP!! Any mods to put an Si tranny in a DX setup??? (tpr)

SI and DX clutches are the same...it is the model year as to where the clutch changes. 88, 89, 90-91 clutches are different.
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Old Nov 22, 2002 | 05:59 AM
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Default Re: HELP!! Any mods to put an Si tranny in a DX setup??? (91civic)

hes right
88 has 21 spindle count
89-91 has a 20 spindle count
the 90-91 are like 2mm larger clutch surface than the 88-89
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