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Joined: Sep 2000
Posts: 9,602
Hard-core CEG'er
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Hard-core CEG'er
Joined: Sep 2000
Posts: 9,602 |
The S-AFC HAS NO POSSIBLE way of keeping any tune that is not WOT. Don't even bother trying. Seriously. It's time to get to a dyno that has the capability of burning you a custom chip. A Mustang dyno would be preferrable because it can tune more accurately and at any rpm points & throttle positions besides "just  " WOT.
2000 SVT #674
13.47 @ 102 - All Motor!
It was not broke; Yet I fixed it anyway.
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Joined: May 2003
Posts: 495
CEG\'er
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CEG\'er
Joined: May 2003
Posts: 495 |
Do you still have your stock thermostat? I've got a 170.
2000 Rio Red I4 Cougar
200whp & 210wtq at 9psi
254whp & 276wtq with NX 35shot
WRX TD04 Turbo, Cut Short Shifter, Strut Tower Bar, 17" ZN Wheels, Roush Springs, Starion Intercooler, NX 35 shot, HKS SS BOV, Full 3" exhaust,StreetFlight Chip
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Joined: Aug 2001
Posts: 17,248
CEG road warrior
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CEG road warrior
Joined: Aug 2001
Posts: 17,248 |
This engine..........BOOOOOOOOOOOOOMMMMMMMMMM!!!!!!! 
Hector
2003 Rally Red Mitsubishi Evolution VIII
257HP/259TQ
2005 Lapis Blue Mazda 6s
RET: 00 Cabernet Red Ford Contour Zetec ATX SUPERCHARGED
160HP/141TQ
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Joined: Aug 2001
Posts: 5,810
Hard-core CEG'er
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Hard-core CEG'er
Joined: Aug 2001
Posts: 5,810 |
You can tune it with an emanage but it takes a bit of practice. I can scale back the whole maf curve over every throttle position and rpm. However, you still need dyno time to figure out where the hell you are at as a base to operate from and of course you know it has a limited range where it can tune the MAF.
Your advice to just dyno tune a chip is the best of course. Let's see if he does it.
Former owner of '99 CSVT - Silver #222/2760
356/334 wHP/TQ at 10psi on pump gas!
See My Mods
'05 Volvo S40 Turbo 5 AWD with 6spd, Passion Red
'06 Mazda5 Touring, 5spd,MTX, Black
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Joined: Jul 2004
Posts: 862
Veteran CEG\'er
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OP
Veteran CEG\'er
Joined: Jul 2004
Posts: 862 |
Well I have already decided to get it dyno tuned with a sct setup. There are just too many variables that the safc cannot take care of. Now I just need to save the money for the tune. DemonSVT you have been mis-informed the safc is not just for WOT tunning, what gave you the idea it was? If it was just for WOT tuning the car would barely run with my bigger injectors and MAF. I saw a package on tom's website for $500 that includes unlimited tunes via internet for 6 months with a programmer, I just have to include what my setup is for a base safe tune then dyno it and tom can send you a revised tune after viewing the dyno. For $500 it looks like a good deal but there is still dyno time. Hector my engine is way too rich right now and only running 4psi of boost at the moment so why would it go boom? My bets are that your atx will go boom before my engine  Just kidding Hector. Anyway I put the factory contour 180 degree thermostat in to replace the 192 degree focus one. I was told on Focus Fanatics that the 170 is too cold and there are lots of turbo zetec focus's on that site.
ATX MTX swap, rear drum disc swap, drilled rotors, ported intake, optim throttle body, CAI, 7.5L MAF, adj. fuel regulator, longtube headers, underdrive pulley, no EGR, low inpedence bigger injectors, 2002 Focus Swap
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Joined: Sep 2000
Posts: 9,602
Hard-core CEG'er
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Hard-core CEG'er
Joined: Sep 2000
Posts: 9,602 |
Originally posted by 96mercury:
DemonSVT you have been mis-informed the safc is not just for WOT tunning, what gave you the idea it was? If it was just for WOT tuning the car would barely run with my bigger injectors and MAF.
The S-AFC is capable on making large scale changes to the non-WOT fuel trim but any changes made at moderate or lower levels will be effectively tuned out by the PCM.
The PCM is fully adaptive when not at high load and WOT.
Tuning like that is like target shooting with a shot gun. It may get you in the general vacinity but it's going to be all over the place.
It also makes all the PCM changes much less accurate and efficient because you are playing havoc with the load calculation and it's tables. The PCM is going to be using all the wrong load scaling and calculations because you are so drastically altering the MAF signal.
So you are the one mislead because you don't understand the full picture.
I have an S-AFC btw. Also full datalogging and full self tuning ability as well. Food for thought...
2000 SVT #674
13.47 @ 102 - All Motor!
It was not broke; Yet I fixed it anyway.
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Joined: Jul 2004
Posts: 862
Veteran CEG\'er
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OP
Veteran CEG\'er
Joined: Jul 2004
Posts: 862 |
Demon-svt hmm good point. Just gonna have to save my $$$. To get it tuned right. When I make changes to the SAFC it seams to have an effect throughout the RPM range, but I have noticed the changes aren't very accurate. I understand what you are saying but on the other hand it seams to be taking away fuel and adding it when I tell it to. Can you explain why I can tell a difference even when not at WOT? Maybe the V6 computers behave differently then the 4cyl when the maf signal is modified? I apppreciate the explanations. Right now I am running richer then needed to be safe. Its just amazing to me how small changes to the safc setup can effect the performance of the car, I can only imagine what a correct tune would do. I checked the plugs today and no sign of detenation and it has been over 400 miles now in turbo form. Tomorrow I am going to build a ball and spring boost controller like what I had on my neon so I can do more then 4psi, I will try 5 and then maybe 6 and recheck the plugs and keep an eye on how rich the system is and detenation. I can hook my safc to log the knock but I just need to hook the wires up, this might be helpful to avoid engine damage.
ATX MTX swap, rear drum disc swap, drilled rotors, ported intake, optim throttle body, CAI, 7.5L MAF, adj. fuel regulator, longtube headers, underdrive pulley, no EGR, low inpedence bigger injectors, 2002 Focus Swap
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Joined: Aug 2001
Posts: 17,248
CEG road warrior
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CEG road warrior
Joined: Aug 2001
Posts: 17,248 |
Running really rich isn't safe either. 
Hector
2003 Rally Red Mitsubishi Evolution VIII
257HP/259TQ
2005 Lapis Blue Mazda 6s
RET: 00 Cabernet Red Ford Contour Zetec ATX SUPERCHARGED
160HP/141TQ
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Joined: Aug 2001
Posts: 5,810
Hard-core CEG'er
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Hard-core CEG'er
Joined: Aug 2001
Posts: 5,810 |
Well, not for the catalytic converter anyway....nor the oil and I guess in the long run then not good for the motor.
Former owner of '99 CSVT - Silver #222/2760
356/334 wHP/TQ at 10psi on pump gas!
See My Mods
'05 Volvo S40 Turbo 5 AWD with 6spd, Passion Red
'06 Mazda5 Touring, 5spd,MTX, Black
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Joined: Jul 2004
Posts: 862
Veteran CEG\'er
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OP
Veteran CEG\'er
Joined: Jul 2004
Posts: 862 |
Well its not that ecessively rich, but yeah I don't have a cat I adjusted it some more and it seams to not be too rich through all rpms except when I first start it in the morning when its cold. I wish there was a way to solve that problem for the time being. Before I can do that I have to fix my driver's side window as it no longer rolls up.
ATX MTX swap, rear drum disc swap, drilled rotors, ported intake, optim throttle body, CAI, 7.5L MAF, adj. fuel regulator, longtube headers, underdrive pulley, no EGR, low inpedence bigger injectors, 2002 Focus Swap
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