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HF to Si


crxfanatic_88
06-22-2003, 10:38 AM
ALright, i am getting rid of my HF motor and i am going to buy an Si motor for $100. It comes with everything, i'll just have to get the ECU. IT doesnt come with the transmission, but i want to know what it could run with a DX tranny instead of the Si motor with the Si tranny. Help me out.

mellowboy
06-22-2003, 10:41 AM
You can run ur dx trans but its not gonna be all that great. I have a pm6 ecu for sale if you want it. I'll sell it for 40 shipped. Pm and let me know if you want it.:smile:

crxfanatic_88
06-22-2003, 10:43 AM
thats a pretty good deal man, let me think about it.:smile: :biggrin:

mellowboy
06-22-2003, 10:49 AM
Well just let me know cause my boy might wanna get it.

91civicDXdude
06-22-2003, 01:10 PM
If you have an HF and plan on running either a DX or Si transmission, you'll have to change your hubs to Dx/Si hubs.

canned4thgen
06-22-2003, 01:13 PM
If you have an HF and plan on running either a DX or Si transmission, you'll have to change your hubs to Dx/Si hubs.

well i had the std motor and tranny and put in the si with the 5 speed tranny and i didnt have to change any hubs at all. they are the std ones along with std axles

91civicDXdude
06-22-2003, 01:17 PM
^^ strange becuase my brother has a 91 STD and my 91 DX axles wont fit in his hubs

slammed89civic
06-22-2003, 01:55 PM
maybe there is a diff. thruout the years?

mellowboy
06-22-2003, 04:59 PM
Originally posted by 91civicDXdude
^^ strange becuase my brother has a 91 STD and my 91 DX axles wont fit in his hubs


You dont have to change the hubs as long as u're usin the std or hf axles.

quiXilver
06-23-2003, 12:18 AM
Ok, wait, 'cause I need to know for a fact...I have an HF with a DX transplant and I have a DX tranny waiting to be put in..do I need to replace my axles and hubs?

mellowboy
06-23-2003, 12:31 AM
Originally posted by quiXilver
Ok, wait, 'cause I need to know for a fact...I have an HF with a DX transplant and I have a DX tranny waiting to be put in..do I need to replace my axles and hubs?


Nope!:smile:

quiXilver
06-23-2003, 12:33 AM
How come EVERYBODY else says I do? Are you sure? It's a '90 HF.

mellowboy
06-23-2003, 12:35 AM
Originally posted by quiXilver
How come EVERYBODY else says I do? Are you sure? It's a '90 HF.


I am 100% sure about this. My friend has a 91 hf and i sold him my complete d16a6 engine to him and we didnt have to change the hubs and knuckles. We just used the existing axles.

quiXilver
06-23-2003, 12:57 AM
AWESOME! So I can use my HF axles with my DX tranny, well I'm gonna do that real soon, guess I'll find out for sure when I do it...

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