LTFT are off by 26% on the rich side. When all the short and Long terms are at 1.000 under slight throttle or Idle, you have a perfect 14.64:1 A/F with is ideal for idle and crusing under part throttle.
now the MAF counts are another thing.
1023 MAF counts means that the maf is pegged. This is the same as 5 volts, the maf cannot read anymore so it reverts to a table called Fail MAf table.
To over come a pegged MAF, you need to trick the computer with a MAF extender or get a bigger/better maf such as an SCT Mass Air.
On the newer 05-07 Stangs, we have seen the factory MAF and a MAFIA maf extender support up to 800 RWHP without any problems.
To say that it is impossible to mail order tune properly is also false since there are tuners such as Doug from Bamachips and Brent from Brenspeed who are able to do this sucessfully.
How do you know that the tunes are successful? Just by the fact that the check engine light isn't on?
I see these guys locking thier tunes left and right as if it contains the holy grail. Cracks me up.
There are 2 main reasons for locking a tune.
1) To protect the customer from themselves. (If 18 degrees of timing is good maybe 20 degrees will be better theory)
2)To protect their good name if someone screws with the tune and blows it up.
I will use myself as an example. When I was researching my blower purchase I was noticing that everyone who was running a Saleen blower with JDM tunes was very happy and there were no reported failures.
There are now over 500 if not 600 JDM tuned Saleen S/C'd S197's running around without 1 single reported engine failure.
This excellent reputation most definitely creates customer confidence and is worth protecting because there is a dollar value attached to this.
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There are many people who have been tuning mustangs for years who are having difficulty tuning the S197's due to these sub systems and the additional tables and functions required to tune them.
Take SCT for example from what I have heard there are many access levels in tuning the S197 and not everyone has access to these levels.
Level 1 would be the Pro Racer package which is a single user package which you and I could purchase.
Level 2 would be what your local performance shop would use to build you a tune for the mods you purchase.
Levels 3-5 are for custom tuners all the way up to what SCT insiders use. You must meet the qualifications setout by SCT and complete their training seminars.
Joe please correct me if i'm wrong.
You are correct on the SCT software. Since Jerry W. Has left, the software is falling apart as well. the datalogging software is no where near what it used to be and getting the new latest and greatest updates for the newer '07 cars is becoming a challange.
You are also correct with the tuning of these newer cars. There are so many different things that need to be watched to make sure your changes are taken into effect.
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10.308 @ 131 for now on a street car with A/C
NMRA #12015 SST
Looking for 9's on the stock motor before April-'09
Not a whole lot, he is using a mail order tune set for safety. hence the richness of the tune at part throttle. This is another reason a Dyno is used, have you ever tried tuning a car for Part throttle on the street? It is very difficult.
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10.308 @ 131 for now on a street car with A/C
NMRA #12015 SST
Looking for 9's on the stock motor before April-'09
How do you know that the tunes are successful? Just my the fact that the check engine light isn't on?
A Successful Mail order tune is one that makes a difference SAFELY! To do mail order tuning is not something everyone can do, for those that like to scrutenize mail order tuners, they need to realize what it takes. To tune your one car, is great, to tune the same type of car is over and over is easy. How ever, try tuning a Procharged car over the phone with the owner not knowing what to look for and just sending you datalogs with No A/F, we have to go by what we know and what we see as far as the STFT and the LTFT's are. LTFT's don't really matter under WOT so alot of folks tune for WOt, drivability is the key to a good mail order tuner as well as making power safely.
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10.308 @ 131 for now on a street car with A/C
NMRA #12015 SST
Looking for 9's on the stock motor before April-'09
There are 2 main reasons for locking a tune.
1) To protect the customer from themselves. (If 18 degrees of timing is good maybe 20 degrees will be better theory)
This is the number one reason!!!!!!!!!!!! Also, think of it this way, anyone can buy the SCT tuning software. How would you fell if you were JDM and spent the TIME and MONEY to learn and perfect a tune for a car as popualr as these with the saleen S/C. Now think how you would feel if someone took your tune, bought the software and now sold these tunes as there own with no real knowldge of tuning other than what they read on an internet board!
This is a way for us a tuners to protect what we have done. Think of it as a type of Copyright.
How would you feel if someone took what you did and sold it as their own and made money on it and cost you money!
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10.308 @ 131 for now on a street car with A/C
NMRA #12015 SST
Looking for 9's on the stock motor before April-'09
There is a big difference due to the drive by wire system and the variable cam timing or VCT.
This goes hand in hand on what I mentioned about systems changing with each revision of the car. The core components as written about above are still there, it's just that now in addition to those components, there are a bunch more to handle the newer things that were added...such as the drive-by-wire setup.
Ok, but consider what you said above about most people aren't ever going to tune their own cars anways. I'm old school hotrodder in the sense that if someone needs a hand, heck ya I'll help them for the love of the sport. Not for the love of the money.
If someone decides they want to get into your tune without having any experience, then that is their own fault. More power too them for trying as we all had to do it at one time.
Quote:
Originally Posted by DynoJoe
This is the number one reason!!!!!!!!!!!! Also, think of it this way, anyone can buy the SCT tuning software. How would you fell if you were JDM and spent the TIME and MONEY to learn and perfect a tune for a car as popualr as these with the saleen S/C. Now think how you would feel if someone took your tune, bought the software and now sold these tunes as there own with no real knowldge of tuning other than what they read on an internet board!
This is a way for us a tuners to protect what we have done. Think of it as a type of Copyright.
How would you feel if someone took what you did and sold it as their own and made money on it and cost you money!
That's the perfect example that would make me real worried. I have seen many a cars go to where my tuner is at (he has dyno days) where these guys got mail order tunes and the AFR is no where near where they planned on it being. Without checking for myself what it is running, I am just too nervouse. Too much money tied up in these things for them to go boom with a bad tune.
That car looks awesome by the way. Great pic.
Quote:
Originally Posted by thump_rrr
Look at the times in my sig.
My car has not seen a dyno yet but has 125 S/C'd runs under it's belt.
I'm within 1/10th of the fastest 10 psi custom tuned stock motor Saleen that I know of.
Mine is a manual trans car running 55 lb street wheels against his girl-o-matic with drag wheels.
This goes hand in hand on what I mentioned about systems changing with each revision of the car. The core components as written about above are still there, it's just that now in addition to those components, there are a bunch more to handle the newer things that were added...such as the drive-by-wire setup.
There is a "tuner" in our area (I'm using the term very loosely) who has had a lot of success in the past with the SN95 mustangs and vortech superchargers.
When the vortech kit came out on the S197 he began selling and installing the kits.
By the time he figured out that they're a different animal 3 customer cars were blown up.
DynoJoe is very humble and I don't think that most people on this site know how far he has gone with Shawn's vert on the stock motor. http://www.modularfords.com/forums/2...ght=vert+shawn
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That's the other thing that scares me. At least I make no claim to being a professional tuner. Would love to be some day but I am limited to hobby tuning on my own car. How would you like me to be advertising to be a Ford supercharger tuning expert. LOL! I'm sure something like that is being done and they are handing out tunes for hire.
Quote:
Originally Posted by thump_rrr
There is a "tuner" in our area (I'm using the term very loosely) who has had a lot of success in the past with the SN95 mustangs and vortech superchargers.
When the vortech kit came out on the S197 he began selling and installing the kits.
By the time he figured out that they're a different animal 3 customer cars were blown up.
DynoJoe is very humble and I don't think that most people on this site know how far he has gone with Shawn's vert on the stock motor. http://www.modularfords.com/forums/2...ght=vert+shawn
That's the perfect example that would make me real worried. I have seen many a cars go to where my tuner is at (he has dyno days) where these guys got mail order tunes and the AFR is no where near where they planned on it being. Without checking for myself what it is running, I am just too nervouse. Too much money tied up in these things for them to go boom with a bad tune.
That car looks awesome by the way. Great pic.
Thanks,
The fact that they have over 500 of these running with the same setup is where the confidence comes from.
By monitoring the fuel trims and other parameters I know that I'm not running lean.
The max timing dialed in on the base tune is 16*.
The R tune which I will get once the dyno pulls are done and the numbers are sent to JDM will be in the 18* range.
I was supposed to be down there yesterday actually for a custom tune but the 10" of snow made the trip impossible.
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05 White GT Premium 5 Sp. IUP, Active Alarm
BMR, C&L, Centerforce, Fidanza, FRPP, GI Joe, JBA, JDM Engineering, LPW, Saleen, SCT, Steeda, SOS
