vn3.8L
New Member
- Joined
- Feb 18, 2011
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- Location
- Melbourne
- Members Ride
- VN executive s2
So basically I have to put another new motor into my vn again.
I have picked up what was supposed to be a Vn S2 motor, but looking at it now it seems to be a VR motor.
I'm going to go ahead and put it in. Using the VN trans and I will swap the engine loom over from the vr to the vn loom, only differences is the cam angle sensor will not be plugged in.
So doing this I suspect that everything should work fine. However I know that a VR engine has a bit more compression than the VN S2's and I am now getting a little worried about the engine possibly running a little bit lean.
This is where I don't really know what I am doing. I was thinking the best way to overcome this would be to re write the ecu. (note, I have two Vn ecu's). I have done a little bit of research but I am a bit confused about the whole re writing process, everyone seems to buy different stuff, but I Just want to know the easiest way to go about fixing the problem. I have done a little bit of basic computer programming once before. Basically I'm not really concerned about extra horsepower, I just would like the engine to run correctly. It's almost like the time the injectors open need to be altered to that of what it would be for a VR tune.
Thanks
I have picked up what was supposed to be a Vn S2 motor, but looking at it now it seems to be a VR motor.
I'm going to go ahead and put it in. Using the VN trans and I will swap the engine loom over from the vr to the vn loom, only differences is the cam angle sensor will not be plugged in.
So doing this I suspect that everything should work fine. However I know that a VR engine has a bit more compression than the VN S2's and I am now getting a little worried about the engine possibly running a little bit lean.
This is where I don't really know what I am doing. I was thinking the best way to overcome this would be to re write the ecu. (note, I have two Vn ecu's). I have done a little bit of research but I am a bit confused about the whole re writing process, everyone seems to buy different stuff, but I Just want to know the easiest way to go about fixing the problem. I have done a little bit of basic computer programming once before. Basically I'm not really concerned about extra horsepower, I just would like the engine to run correctly. It's almost like the time the injectors open need to be altered to that of what it would be for a VR tune.
Thanks