Turbo Build

[rstare]

Fixed the cam timing. Now it's perfect.
Vacumm is 17" hg, no misses.
Going to get the exhaust made tomorrow. Then I will have some tuning to do.
Question about the Fcd. I'm not sure if it's operating right.
With the car off but the ignition to the on position I test the voltage and it is jumping all over the place. .2 - .4 and 5.xx mostly. I tried to pressurize the manifold to make sure it didn't go over 4.57v but the manifold just leaks all the pressure to various places. (I used a air compressor, 80psi)
If you guys could tell me what you did to check and make sure it was working right that would be great.

Thanks guys for all your help!

Edit: The car won't even run with the FCD in, it starts and when it comes down to idle it just dies.

 

[Flipboi89]

http://i5.photobucket.com/albums/y184/Magic89/other car pics/420A_FCD_INSTALLATION.jpg

heres instructions that i used to install mine

 

[rstare]

Well... I got it up and running.
Exhaust in, FCD in (thanks Paul), Wideband 02 in.
FCD still needs a little tweaking, haven't seen boost, it's cutting fuel.
Wideband 02 is reading lean. 14-15:1 afr right now, so sfmu needs tweaking.
I actually have the static screw almost all the way down and the highest pressure it seems to want to put out is 30psi give or take a few.
Other then that it runs awesome, I will let you guys know when I got all the kinks worked out.
Thanks agian for your guys help!

Edit: Has anyone had issues with the wastegate or oil feed line clearing the underside of the hood?
I have a 90 on the oil feed but both that and the wastegate hit the padding on the underside of the hood.

 

[david-b]

Well... I got it up and running.
Exhaust in, FCD in (thanks Paul), Wideband 02 in.
FCD still needs a little tweaking, haven't seen boost, it's cutting fuel.
Wideband 02 is reading lean. 14-15:1 afr right now, so sfmu needs tweaking.
I actually have the static screw almost all the way down and the highest pressure it seems to want to put out is 30psi give or take a few.
Other then that it runs awesome, I will let you guys know when I got all the kinks worked out.
Thanks agian for your guys help!

Edit: Has anyone had issues with the wastegate or oil feed line clearing the underside of the hood?
I have a 90 on the oil feed but both that and the wastegate hit the padding on the underside of the hood.

Is the 14-15.1afr at idle? Car will always read that unless you have a stand alone. Stock ECU always tries to keep it at 14.7afr. You can drop fuel pressure, but it should still keep it in that range by default.

I have a straight connection coming off my turbo for oil and I just bent it a little to clear. No problems though. Seems like on a 90 degree, it should be fine. Wastegate doesn't even come close on mine to hitting anything. Use a shorter hose?

 

[rstare]

The afr at idle is about 15:1. When I am driving it also stays pretty close to that, when accelerating too, when I'm off the throttle it goes up to 18:1 and even off the gauge. Haven't really hit boost because I haven't tuned the FCD correctly yet.
Ya, the wastegate it hitting and actually going through the heat sheild padding and making contact with the hood, it's probably the wastegate, I have a Tial on the way.
The oil feed is literally burning into the padding, I have sheet metal tape on the padding right now, but it is slowly burning through that too. I have a -4 line with a straight hose end and then a 90* adapter on the end. I am going to make a new line with a 90* hose end on it instead of an adapter and see if that helps.

Edit: I will get some pictures of it today.

 

[Flipboi89]

picture of the oil line?

 

[david-b]

The afr at idle is about 15:1. When I am driving it also stays pretty close to that, when accelerating too, when I'm off the throttle it goes up to 18:1 and even off the gauge.

That's normal. Stock ECU will try to hold it at around 14.7 until you WOT. Letting off the gas basically turns down the injectors to minimal so it'll go lean.

 

[style619s]

Well... I got it up and running.
Exhaust in, FCD in (thanks Paul), Wideband 02 in.
FCD still needs a little tweaking, haven't seen boost, it's cutting fuel.
Wideband 02 is reading lean. 14-15:1 afr right now, so sfmu needs tweaking.
I actually have the static screw almost all the way down and the highest pressure it seems to want to put out is 30psi give or take a few.
Other then that it runs awesome, I will let you guys know when I got all the kinks worked out.
Thanks agian for your guys help!

Edit: Has anyone had issues with the wastegate or oil feed line clearing the underside of the hood?
I have a 90 on the oil feed but both that and the wastegate hit the padding on the underside of the hood.

my friend is having same problem.. he said you should just buy a smaller fitting thats wut hes doing

 

[rstare]

Like I said as soon as I get a camera I will take some pictures.
I tried to get the FCD tuned right last night. The adjustment screw spins in one circle, and I went around the whole thing in about 1/8 turns. Never got it to work. There are notches about every 1/16 turn, so I am going to try everyone of those.
The fuel I'm not worried about till I see boost.
Out of boost fuel is totally controlled by the ecu. It uses the Map sensor along with a few other sensor to adjust fuel, it just doesn't realize that there is 315cc injectors in there, but once it sees the afr ratio it realizes it's getting more fuel then it thought and adjusts from there. I can tell by my afr at start up.
But in boost the map sensor has to be tricked and doing that also tricks the ecu, which is where the sfmu comes into play. For me it hasn't come into play yet, so I'm not worried about the afr till I start seeing boost. In the last posts I didn't make that clear, sorry.

Edit: I tried every notch on the FCD adjustment screw and still a no go.

 

[rstare]

So my wastegate is almost 5.5", Tial wastegate is 4.807". So that will probably get rid of that problem.
I clocked the center cartridge down as far as it would go, (till the oil return hit the starter).
Now the oil feed isn't really hitting the hood insulation.

This is the big thing. So just to test things, I took the FCD out of the map sensor. I drove it around a little, it seemed alot smoother in all aspects but it also will build boost now without cutting fuel....
No, I don't have a 95' (I have a 97'). So, whatever the reason the ecu just isn't cutting fuel, so I guess all thats left is to "tune" the sfmu.

 

[totaleclipse_05]

Are you using a Multimeter to tune the FCD? Because you should be.

Take the hood insulation out if the oil line hits it, that's what I had to do and no problems afterwards.

 

[rstare]

Are you using a Multimeter to tune the FCD? Because you should be.

Take the hood insulation out if the oil line hits it, that's what I had to do and no problems afterwards.

Like I said, I took the FCD out and now it's building boost and not cutting fuel.
Like I also said I clocked the center cartridge slightly and now the oil line is fine.

I clocked the center cartridge down as far as it would go, (till the oil return hit the starter). Now the oil feed isn't really hitting the hood insulation.

I took the FCD out of the map sensor. I drove it around a little, it seemed alot smoother in all aspects but it also will build boost now without cutting fuel....