Okay let me explain my situation.
I just picked up a d15b complete swap, i sold the hydro tranny that came with the motor, and i'm going to wait a little while until i can rebuild this 91 si tranny i have. Until then I will be using the 90'dx 5sp tranny that came with car. If I purchase a performance clutch like ACT, for the 5sp dx tranny, will that tranny also work on my 91 si tranny when its ready to go in. Is the clutch for the dx tranny the same as the si tranny would be?

thanks

 

No the splines on the DX tranny are different from the Si.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nicks_jdmstyle_ef9 &raquo;</TD></TR><TR><TD CLASS="quote">No the splines on the DX tranny are different from the Si. </TD></TR></TABLE>

get a clutch for your tranny.


si tranny si clutch

dx tranny dx clutch.


now u can put an si clutch on dx flywheel.cause im useing dx flywheel with my si clutch and L3 si tranny

 

so i guess im stuck getting a stock clutch for the dx tranny for now then. Cuz i dont want to spend the money on a performance clutch for the dx tranny then need to spend it again on the si trans.

 

u can find exeddy clutch cheap from ebay.some maybe the same price or even cheaper then oem clutch.

 

wait, are you guys sure, because i'm looking at prostreet online's website, and they say the clutch fits , this is straight from their website:
Part # pscb06 fits:
Honda Civic 1.5L D15 1990-1991
Honda Civic 1.6L D16 1990-1991
Honda Civic 1.5L D15 Wagon 1990-1991
Honda CRX 1.5L D15 1990-1991
Honda CRX 1.6L D16 1990-1991

ps: part number pscb06 is a clutch and flywheels combo.

 

I just spoke to customer service and this is what they said:
"Marvin@ProStreet:
Thank you for contacting Pro Street Motorsports' Customer Support! How can I help you today?
albert rieke:
Hi im interested in purchasing a clutch flywheel combo from your online shop
albert rieke:
i just have a few questions though
Ryan@ProStreet:
How is it that I can assist you sir
albert rieke:
okay, i have a 1990 dx, and i want to buy a performance clutch, but later on maybe a month or 2 from now, i will get a different tranny from a 91 civic si
albert rieke:
I just want to know, if the clutch from a 90 dx will also fit onto the si tranny
Ryan@ProStreet:
If you are getting a new tranny, you will want to get the clutch for the for that tranny
Ryan@ProStreet:
Let me see if the two clutches are the same
albert rieke:
the one i was looking at was PSCB06: Pro Street Clutch Kit Flywheel Combo
albert rieke:
someone told me it wont work because the splines are different. But on your site it says the product pscb06 fits civic 1.5l , and civic 1.6l
albert rieke:
just wanted to be clear before I ordered anything
Ryan@ProStreet:
The 1990 and the 1991 civic use the same clutch
Ryan@ProStreet:
The splines should be the same on both.
Ryan@ProStreet:
Is there anything else that I can assist you with today?
albert rieke:
the 1990 and 1991 civic dx and si use the same clutch?
Ryan@ProStreet:
yes sir
albert rieke:
Okay thank you, I'll keep that in mind, and look around just to confirm this, and then i will come back and purchase if everything sounds good.
albert rieke:
Thank you very much for your time
Ryan@ProStreet:
Ok, you're welcome.
Ryan@ProStreet:
Have a nice day.
albert rieke:
you too"

So they say the 1990-1991 dx and si can use the same clutch, any feedback on that. Want to be sure before ordering

 

wait i think spilne count only changed from 88-89 90 91 only changed from year of car not trim.


88-89 civic/crx has 21 splines

90-91 civic/crx has 20 spilnes

 

it will werk

 

yeah it will work


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vteckillenzc &raquo;</TD></TR><TR><TD CLASS="quote">wait i think spilne count only changed from 88-89 90 91 only changed from year of car not trim.


88-89 civic/crx has 21 splines

90-91 civic/crx has 20 spilnes


</TD></TR></TABLE>

88 has a 21 spline input shaft,,89-91 has a 20 spline input shaft..if you have a 20 spline tranny with a 212mm flywheel then you need a clutch for 90-91..if you have 20 spline tranny with a 200mm flywheel then you need a clutch for 89...if you have 21 spline tranny then you need a clutch for 88....

 

thanks for the correction.i knew i was close

 

should i also get the flywheel while im at it, I don't plan on racing the car or anything like that to much. I just want a fun car to drive. The main reason im gettin the clutch is because the car really needs one. So do you think it's really necessary for me to get the flywheel too.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nicks_jdmstyle_ef9 &raquo;</TD></TR><TR><TD CLASS="quote">No the splines on the DX tranny are different from the Si. </TD></TR></TABLE>

sorry I should have been a little more specific. I briefly read your post and did not pay any attention to the years you posted

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ekslax &raquo;</TD></TR><TR><TD CLASS="quote">should i also get the flywheel while im at it, I don't plan on racing the car or anything like that to much. I just want a fun car to drive. The main reason im gettin the clutch is because the car really needs one. So do you think it's really necessary for me to get the flywheel too.</TD></TR></TABLE>

I dont think its necessary to get a flywheel. What I would do is have your stock one lightened for 75 dollars. they will shed a few pounds for ya.

 

can i use the 91 si flywheel on my dx tranny, is that one a little bit lighter.

 

well im useing a dx flywheel and L3 tranny.try to switch them around it may just work.

 

Pfft my clutch is gone son, i fried that thing, but yeah on a side note just get the clutch for your tranny, and if it's original tranny to the motor then whatever year it is, get the clutch for that year.

 

nah they said its the same thing, the part number for the 91 dx clutch is the same part number as the 91 si clutch.

 

Well yah i know that, but im just saying you might as well get it for your tranny model and year, just to be on the safe side, if there the same anyways then what is it gonna matter?.