MPG Engine swap: VX into a DX chassis
08-28-2006, 12:56 PM
#1
Senior Member
Thread Starter
Join Date: Mar 2002
Posts: 5,236
Likes: 0
Received 0 Likes
on
0 Posts
MPG Engine swap: VX into a DX chassis
I was wondering what would be involved in doing a DX-VX swap, is it a simple plug & play or would there be a whole lot of rewiring to do? I know I might have to wire for v-tec, but what else? I know it's an odd swap but finding a used civic vx that hasn't been to the B18x swap butcher is near impossible.
thnx
thnx
08-28-2006, 07:12 PM
#2
Senior Member
Join Date: Apr 2003
Posts: 991
Likes: 0
Received 0 Likes
on
0 Posts
i got a vx (D15z1) in my 4dr DX AND LOVE THE MPG!!!!!!!!!!
I have gotten 375 miles on a tank. It was pretty much just plug'n play. Vtec pulls like a b-series but I hardly use vtec anyway. Just add some wires for vtec solenoid and ur good to go. oh and you need a p28 ecu
I have gotten 375 miles on a tank. It was pretty much just plug'n play. Vtec pulls like a b-series but I hardly use vtec anyway. Just add some wires for vtec solenoid and ur good to go. oh and you need a p28 ecu
08-29-2006, 12:05 AM
#4
Rotorphile.
Join Date: Mar 2002
Location: Richmond, VA
Posts: 10,120
Likes: 0
Received 0 Likes
on
0 Posts
A P28 is not going to extract the maximum potential from a D15Z1... not anywhere close. The D16Z6 and D15Z1 are more different then the average Joe would think.
To be honest, if you want plug-and-play MPG, use a CX engine... you can get them for free if you look around.
The VX engine uses a wideband five wire O2 sensor and EGR that will require an obnoxious rewire job, nevermind the 12/16 valve switching VTEC-E system. The CX D15B7 runs on a simple one wire O2 sensor and a basic 8 valve head that pulls similar fuel milage.
To be honest, if you want plug-and-play MPG, use a CX engine... you can get them for free if you look around.
The VX engine uses a wideband five wire O2 sensor and EGR that will require an obnoxious rewire job, nevermind the 12/16 valve switching VTEC-E system. The CX D15B7 runs on a simple one wire O2 sensor and a basic 8 valve head that pulls similar fuel milage.
08-29-2006, 11:28 AM
#5
Senior Member
Join Date: Feb 2003
Location: pittsburgh.
Posts: 1,863
Likes: 0
Received 0 Likes
on
0 Posts
what year? my stock DX will get 400-430 on the highway. I've always wondered about doing this or at least the head swap.
If you don't use the ECU wouldn't you just have an 8-valve head that appartenly gets worse MPG than a z6?
08-29-2006, 07:06 PM
#6
Driving a Turbo 2L Terror
Join Date: May 2002
Location: Stafford, VA
Posts: 4,212
Likes: 0
Received 0 Likes
on
0 Posts
THese are waters that u do not want to swim in. If u do find a motor, most likley they wont have EGR solenoids, which u might be able to find at a junk yard, but most likely not. U need the VX ecu, to run the EGR and the VTEC-E, if u run the CX ecu u will lose the goods that the VX motor will offer. Like Kai said just go with the CX motor, I have driven both and there is not that much of a difference.
08-30-2006, 06:53 AM
#7
Senior Member
Thread Starter
Join Date: Mar 2002
Posts: 5,236
Likes: 0
Received 0 Likes
on
0 Posts
I think I may have found a decent civic vx hatch not too far from me, gonna check it out. I currently own a 2004 VW golf tdi getting combined 43.5mpg driving 75-80mph highway, grandma in the city. I wanna get rid of the payment.
08-30-2006, 12:58 PM
#9
Senior Member
Thread Starter
Join Date: Mar 2002
Posts: 5,236
Likes: 0
Received 0 Likes
on
0 Posts
h: