HF to Si

crxfanatic_88 · #1 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 · #2 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.

crxfanatic_88 · #3 06-22-2003, 10:43 AM

thats a pretty good deal man, let me think about it.

mellowboy · #4 06-22-2003, 10:49 AM

Well just let me know cause my boy might wanna get it.

91civicDXdude · #5 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 · #6 06-22-2003, 01:13 PM

Quote:

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 · #7 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 · #8 06-22-2003, 01:55 PM

maybe there is a diff. thruout the years?

mellowboy · #9 06-22-2003, 04:59 PM

Quote:

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 · #10 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 · #11 06-23-2003, 12:31 AM

Quote:

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!

quiXilver · #12 06-23-2003, 12:33 AM

How come EVERYBODY else says I do? Are you sure? It's a '90 HF.

mellowboy · #13 06-23-2003, 12:35 AM

Quote:

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 · #14 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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