hf swap questions

Thread Tools
 
Search this Thread
 
Old May 23, 2007 | 08:47 AM
  #1  
SFlCrx's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Nov 2004
Posts: 713
Likes: 0
From: Delray Honda, Florida, USA
Default hf swap questions

i just got hit by a drunk driver 2 weeks ago in my dx and now i'm rocking the hf. i have a zc on a stand waiting for internals and the turbo. i was going to drop the dx tranny and engine in the hf with mpfi. can i use the hf intake manifold? and do i have to change any of the sensors around like the tps wires or the map sensor? thanks
Reply
Old May 23, 2007 | 08:52 AM
  #2  
C_R_X_'s Avatar
Junior Member
 
Joined: May 2007
Posts: 118
Likes: 0
From: high desert, ca
Default Re: hf swap questions (SFlCrx)

not sure but you should look at the throttle bodies i know the hf is extremely small so that might be an indiacation of other smaller ports in the manifold
Reply
Old May 23, 2007 | 09:01 AM
  #3  
2slow4stock's Avatar
Junior Member
 
Joined: Jun 2006
Posts: 301
Likes: 0
From: A CiTy, IL
Default

Dont use the hf IM there uber small. Upgrade ^_^
Reply
Old May 23, 2007 | 09:02 AM
  #4  
SFlCrx's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Nov 2004
Posts: 713
Likes: 0
From: Delray Honda, Florida, USA
Default

i wonld think the hf mani is better then the dx one and there is no way in hell i'm doing a mpfi to dpfi.

this will be tempoary untill the zc goes in at the end of the year
Reply
Old May 23, 2007 | 09:05 AM
  #5  
gp70hs's Avatar
Junior Member
 
Joined: Jul 2006
Posts: 135
Likes: 0
From: Ventura, CA, 93003
Default Re: hf swap questions (SFlCrx)

What year is the DX and what year is the HF? 85-87 interchangable, 88-91 interchangable, but not between the two sets, without a lot of changes.

The intake on the HF only allows airflow to 4 of the valves on the head. The DX has 8 valves, with 2 valves/cylinder for intake. The layout and bolting are the same, so you might be able to use the HF on the DX, but it definitely isn't designed for power, so it may be real disappointing for performance.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
HondaHeddie
Honda CRX / EF Civic (1988 - 1991)
5
Sep 23, 2006 09:58 PM
classic69
Honda CRX / EF Civic (1988 - 1991)
9
Dec 17, 2005 05:21 AM
5litereater
Honda CRX / EF Civic (1988 - 1991)
6
Jun 24, 2004 06:01 PM
bluebullet
Honda CRX / EF Civic (1988 - 1991)
10
Jun 16, 2002 06:58 PM
tanjulio
Honda CRX / EF Civic (1988 - 1991)
8
May 2, 2002 04:36 PM




All times are GMT -8. The time now is 03:26 AM.