SOHCGT96
July 12th, 2007, 03:29 AM
Hi, 1st post! Don't mind the length, I'm just from the school of thought that in certain situations, too much information is far better than not enough. Be assured, however, that reading it all is worth you time because I intend on placing a tune and SCT Xcal order once we've got everything figured out. Ideally, this would be today or friday. The car has to be on the road in no more than 16 days, preferably as soon as possible.
You'd dropped in with advice a few times in threads I'd posted on modularfords.com, and that was a strong point of consideration when it came time to choose who to do business with.
My engine swap is almost finished, so it is time to address my need to have the ECM re-tuned to accommodate the changes. The car is, as you might have guessed, a 1996 Mustang GT. 5 speed, catless H-pipe (no emissions testing in this area), dynomax mufflers, a 4.10 rear end, and about 200 pounds of weight reduction (lightweight buckets, rear seat delete, aluminum block motor, tubular front suspension, coilovers front and rear).
The car now has a 1998 Mark VIII DOHC motor in it, which is completely stock save the ford racing shorty headers and gutted IMRC plates. Retained are the blue 24# injectors the engine came with, the 1996 GT computer and full wiring harness (only 2 sensors needed wires extended, other than that it was a direct plug-in swap) and stock GT mass air meter which is calibrated for the GT's 19# yellow injectors. The GT's DIS ignition is being used on the new motor, though it was originally a COP motor.
I would imagine the stock Cobra/Mark VIII fuel and spark maps would be able to run this just fine, with a global fuel trim addressing the mismatch between the MAF calibration and injector size, correct?
What I would IDEALLY like to accomplish with the tune:
-Make as much power as I can out of the engine with 92 octane fuel (note that this is a "farm state" and nearly all fuel in the state is 10% ethanol) and a street-friendly tune
-disable the EGR system as it has been removed
-disable the rear O2 sensors as there are no catalysts present
-disable the passive anti-theft system (save money on replacement keys, long story!)
-have a SCT Xcal2 show up on my doorstep with a tune that I can upload and
safely drive the car on, including WOT passes down the track
-Since the unit holds 3 tunes, I would ideally like to have a highway, city, and race tune in the unit. Is the charge based on each tune, or 1 device?
-At this time I'm not completely sure where I will end up wanting the rev limiter, that is something as an end user I will be able to adjust, correct?
The reason I would like to do a highway/road trip tune is pretty simple: The "Local" drag strip myself any my friends all go to is exactly 95 miles away, and I frequently visit a town thats 50 miles away. Both are almost all interstate, constant speed cruise the whole way, and at 65 MPH with my 4.10 rear end that amounts to racking up a lot of miles at 25-2600 RPMs which is pretty rough on MPG.
As far as use/intent/future of the car, it sees about 3-4 trips to the drag strip every year, and is a 2nd vehicle driven on evenings/weekends. I don't have much intent of further engine modifications for quite some time, other than the addition of a N20 system around springtime.
So my questions are:
1. Will I be able to get what I'm looking for with a web-ordered tune and the Xcal2? Are any of by objectives not possible with by these means?
2. Is there any other information you would need from me?
3. How soon would you be able to ship it out? If I can have it in my hands by 7/21 I'd be quite content.
4. How long does it take an Xcal to upload a tune?
You'd dropped in with advice a few times in threads I'd posted on modularfords.com, and that was a strong point of consideration when it came time to choose who to do business with.
My engine swap is almost finished, so it is time to address my need to have the ECM re-tuned to accommodate the changes. The car is, as you might have guessed, a 1996 Mustang GT. 5 speed, catless H-pipe (no emissions testing in this area), dynomax mufflers, a 4.10 rear end, and about 200 pounds of weight reduction (lightweight buckets, rear seat delete, aluminum block motor, tubular front suspension, coilovers front and rear).
The car now has a 1998 Mark VIII DOHC motor in it, which is completely stock save the ford racing shorty headers and gutted IMRC plates. Retained are the blue 24# injectors the engine came with, the 1996 GT computer and full wiring harness (only 2 sensors needed wires extended, other than that it was a direct plug-in swap) and stock GT mass air meter which is calibrated for the GT's 19# yellow injectors. The GT's DIS ignition is being used on the new motor, though it was originally a COP motor.
I would imagine the stock Cobra/Mark VIII fuel and spark maps would be able to run this just fine, with a global fuel trim addressing the mismatch between the MAF calibration and injector size, correct?
What I would IDEALLY like to accomplish with the tune:
-Make as much power as I can out of the engine with 92 octane fuel (note that this is a "farm state" and nearly all fuel in the state is 10% ethanol) and a street-friendly tune
-disable the EGR system as it has been removed
-disable the rear O2 sensors as there are no catalysts present
-disable the passive anti-theft system (save money on replacement keys, long story!)
-have a SCT Xcal2 show up on my doorstep with a tune that I can upload and
safely drive the car on, including WOT passes down the track
-Since the unit holds 3 tunes, I would ideally like to have a highway, city, and race tune in the unit. Is the charge based on each tune, or 1 device?
-At this time I'm not completely sure where I will end up wanting the rev limiter, that is something as an end user I will be able to adjust, correct?
The reason I would like to do a highway/road trip tune is pretty simple: The "Local" drag strip myself any my friends all go to is exactly 95 miles away, and I frequently visit a town thats 50 miles away. Both are almost all interstate, constant speed cruise the whole way, and at 65 MPH with my 4.10 rear end that amounts to racking up a lot of miles at 25-2600 RPMs which is pretty rough on MPG.
As far as use/intent/future of the car, it sees about 3-4 trips to the drag strip every year, and is a 2nd vehicle driven on evenings/weekends. I don't have much intent of further engine modifications for quite some time, other than the addition of a N20 system around springtime.
So my questions are:
1. Will I be able to get what I'm looking for with a web-ordered tune and the Xcal2? Are any of by objectives not possible with by these means?
2. Is there any other information you would need from me?
3. How soon would you be able to ship it out? If I can have it in my hands by 7/21 I'd be quite content.
4. How long does it take an Xcal to upload a tune?