• Welcome to the Contour Enthusiasts Group, the best resource for the Ford Contour and Mercury Mystique.

    You can register to join the community.

SE PCM vs SVT PCM

todras said:
Brian made 5 hp. Cardoc was saying 10 or some crap.
Click to expand...

Plus cardoc is some redneck in rural OH that thinks he is god's gift to the automotive community.

Hell terry has been saying this stuff for years. I remember back in 02 when I was at his shop he had an SE with SVT drivetrain and ECU. I wonder where cardoc got his idea to do that...
 
I believe Cardoc did pick up 10+ whp, but the baseline dyno looked awful and was running terribly rough. Im not sure if the pcm was swapped right there on the spot, but the after the SVT pcm was swapped, it did clean things up. Id say in most typical applications where the baseline pull is smooth, 5 whp sounds more accurate.
 
But if you know anything about a stock SVT tune, you know you aren't getting much. :blackeye: I know $400 is a ton of money to some people, but an Xcal2 is the way to go.

Mark
 
It's just the timing curve that helped his motor.

Sadly, he would be better off with an xcal2 and a performance tune because we could have loaded SVT timing curves into his SE pcm.
Then for a little bit more he could datalog, check engine codes, and even have adjustibility for the dyno.

The whole swap PCM thing is probably only worth it if it is next to free, but the downside is the injectors have to be changed as well or it will throw off the air fuel ratio. Coincidentally, the SVTs run "richer" stock than the SEs do. Trying to protect the motor from the ramped up timing curve...
 
warmonger said:
It's just the timing curve that helped his motor.

Sadly, he would be better off with an xcal2 and a performance tune because we could have loaded SVT timing curves into his SE pcm.
Then for a little bit more he could datalog, check engine codes, and even have adjustibility for the dyno.

The whole swap PCM thing is probably only worth it if it is next to free, but the downside is the injectors have to be changed as well or it will throw off the air fuel ratio. Coincidentally, the SVTs run "richer" stock than the SEs do. Trying to protect the motor from the ramped up timing curve...
Click to expand...

man I wish I knew that a few months ago when I was finding this stuff ... and you said that you could tune the SVT PCM better anyway but that was also before you became a SCT dealer ...

I am still planning on a tune at some point, sorry i haven't had time to data log yet and send it to you as we discussed via email. Also I am still trying to pick a direction forward with what I want to do right at the moment while still concidering the long run.

Also you say that the SVT PCM runs richer and I can follow why but this past dyno was the best my A/F has ever been. back when the car was near stock the A/F dropped off below 10:1 after 3k rpm, last year it was about 11:1 until 5k rpm then it dropped off, now its a consistant 11:1 across the upper rpm range as you can see by what I posted.
 
Yeah they run richer but there are variations in all the components such as the mafs and even the injectors. You could have just landed on a right combination where the pcm is correctly reading the right mass of air and adding the right mass of fuel.
That A/F sounds about right too.
 
warmonger said:
Yeah they run richer but there are variations in all the components such as the mafs and even the injectors. You could have just landed on a right combination where the pcm is correctly reading the right mass of air and adding the right mass of fuel.
That A/F sounds about right too.
Click to expand...


well I can tell that my car has been running very well since the PCM and injector swap, it makes me :cool:

headers go on May 6th, maybe the cams to if I feel comfortable enough with doing it then ...
 
damn... and you're changing the head-gasket, but can't pop a PCM out?

Dude... wth? lololol
 
LOL Time shortage is my problem. The PCM isn't critical, but the head gasket is. What sucks is the gasket I'm doing right now isn't even on the car I'm using in the rally. This was my practice run on the real junker, just to make sure I could do it right. Now I'm out of time, and we'll be running the 3000 miles on a potentially bad head gasket. I'll be taking everything I need with me, and hopefully through some careful driving I won't be having to change another one on the side of the road!
 
BrApple said:
headers go on May 6th, maybe the cams to if I feel comfortable enough with doing it then ...
Click to expand...
Go ahead and take a long weekend and do the cams. Time consuming and you gotta be careful not to mix things up and whatnot, but really not hard to do. Follow the ford service cd.
 
Kremithefrog said:
Go ahead and take a long weekend and do the cams. Time consuming and you gotta be careful not to mix things up and whatnot, but really not hard to do. Follow the ford service cd.
Click to expand...


well I am having aircougar1 help me with this work and he has done the cam swap before and I think 3 or 4 atx to mtx swaps, He actually did one this weekend ... he is even doing a mtx to atx swap ... so between the two of use I don't see it being an issue .... (he did this work also)

my confort level comes with doing that less then two weeks from Spring Zing and ~14 hour drive out there and back ...
 
O you'll be fine with him helping you then. Just take your time and don't drop anything in the engine. With two people, you'll get it done pretty quick.
 
You must log in or register to reply here.
Back
Top