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  1. Don 95Vert

    Sorry but what can an SCT tuner really do?

    Great, but you can't with SCT's tuners without a custom tune. Rumor has it Diablo stopped doing that too - manily because the USEPA did not like it....
  2. Don 95Vert

    Sorry but what can an SCT tuner really do?

    Just to clarify - The handheld with preloaded tunes will not allow shutting off rear 02 sensors and EGR, you need a custom tune for that. It does allow a lot of different adjustments though. Short Term Fuel Trims, when they are right, will show 1.0 - but they jump around in response to the 02...
  3. Don 95Vert

    converting to 24lb injectors

    Merry Christmas! The SN95's and up use calculated load and RPM for spark calculations. They also use load for fueling. The MAF is used by the PCM to calculate load. When, say a 42# calibrated MAF is used, then load is essentially skewed by about 0.45. So with the stock MAF is on the motor and...
  4. Don 95Vert

    Need help with SCT XCAL2

    Pulling the fuses was a 'safety' procedure SCT wanted in the X2 users manual - at least that's what they told me when I wrote it for them - because if the battery voltage happened to fall below a certain level, it would mess us the PCM which would entail a tow to the dealers for a reflash back...
  5. Don 95Vert

    Motorcraft Spark Plugs GONE

    My own '06 had the plugs changed at 30k miles - my son who is an ASE mechanic did it with me. We followed Ford's guidelines perfectly. The #8 plug broke with almost NO EFFORT to remove it - luckily my son is a Snap-On dealer and had the extraction tool on his truck - that tool is simple, but an...
  6. Don 95Vert

    94 GT Cobra Swap

    Yep, I think that's all you'll need for those injectors. Sounds like a cool project!
  7. Don 95Vert

    Moates QuarterHorse - Tuning on the fly!

    Sold Sold
  8. Don 95Vert

    Moates QuarterHorse - Tuning on the fly!

    ******SOLD******** This was just used once for R&D, never was permanently on any vehicle. It is the latest 'upgraded' model. From Moates Website: "It gives you absolute, bumpless, 100% realtime tuning AND realtime datalogging for all EEC-IV and EEC-V through 2004. It plugs into the J3...
  9. Don 95Vert

    Moates QuarterHorse - Tuning on the fly!

    Sold
  10. Don 95Vert

    How bad is it to hit the rev. limiter?

    Nitrous + Rev limiter IS very bad - that does not apply to what I said - there is a LOT more energy present. Always set the window switch below the rev limiter.
  11. Don 95Vert

    How bad is it to hit the rev. limiter?

    No one read what I posted I guess - the fuel is cut so much that it goes so lean there is not enough energy available to hurt anything. And as I said, Ford tested ALL their cars (GT500's with blowers, Ford GTs with blowers, Lightnings with blowers, 03/04 Cobras with blowers and I assume Ecoboost...
  12. Don 95Vert

    How bad is it to hit the rev. limiter?

    Ford and other manufacturers use fuel cutoff rev limiters for emissions purposes. There is so little fuel present that there is not enough energy to hurt anything - cylinder pressures are pretty low - so fuel cutoff rev limiters are not bad. One of the tests Ford does on cars it to take it on...
  13. Don 95Vert

    School Me on tuning please

    Didn't say that - ANY of the performance tunes will pick up more power - my own '06 picked up 35 RWHP with my tune - what I'm saying is that there really isn't much difference between the two, except the torque tune demands more torque at a lower pedal position to give the feel of more power...
  14. Don 95Vert

    School Me on tuning please

    You have to have that info from the old owner. You can try it if you think it'll work, but if it's different, you may get a 'no start' and have to have it towed back to the dealer for a reflash.
  15. Don 95Vert

    School Me on tuning please

    We did local dynotunes for 6 years or so, but decided to get out of it in this economy considering Columbus has WAY too many tuning dealers - it's basically cutthroat. We had to decide to buy a dyno or just get out of it for now - we got out. We were the first SCT Dealer in Ohio, but it got too...
  16. Don 95Vert

    School Me on tuning please

    Couple things - the sticker on the PCM is its box code. The strategy is the 'family' of processors - you are much better off giving the tuner the strategy because on '05 and up Mustangs the dealer will reflash the PCM to upgrade programming and sometimes change it. They'll do this without...
  17. Don 95Vert

    trying to slope 160 # injectors twin turbo mustang GT 2V

    If you have the slopes, you are halfway there. I'd just use Excel to plot the breakpoints of all the know injector values and go from there - you should be able to add an estimated point or do some 'what if' calculations and see what the curve looks like. I'd be inclined to use something like...
  18. Don 95Vert

    trying to slope 160 # injectors twin turbo mustang GT 2V

    1 - Target fuel trims are 1.0, just like gasoline. The stoich point IS different for E85, but the 02 sensors will read stoich as lambda 1.0 no matter what fuel is used because they are analyzing the exhaust gases for byproducts of combustion and the stoich point is the theoretical point where...
  19. Don 95Vert

    Hanging Idle

    Like was aid the main cause is usually a vacuum leak. The second main cause is that the IAC is at or near it's limit of travel, usually because of a new TB - for that, set the TB to factory idle spec and do an IAC and TPS reset. Don
  20. Don 95Vert

    FUEL PRESSURE PROBLEM

    Some Ford PCMs when datalogging in LiveLink will halve the FPDC, that's what you have, so it's perfectly normal to see 50% DC on a maxed out FP. If it's getting to 50% and not moving, you are out of pump or there is another problem like wiring, etc. If you have a stock tank in a GT, you need to...
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