When the battery dies, the tune gets corrupted. The car wont run when it happens. The fix is to install a new battery and reload the tune. Ive never had it happen and I have gone as long as 3 years without replacing the battery. Thats why an F3v2 is a good idea. That cant happen because there is no battery. Hell, if you get to the point and you want an F3v2 and dont want to buy a jaybird and cant find someone to do it, send me your F3v2 and ill burn it for you. I have a jaybird, I think I actually have 2. You know, you can always sell the QH on here and make your money back on that too. They are for sale on here on a regular basis. I think there is one or 2 in the FS section now. If you get a used one, make sure to get one with the replaceable battery, not the older style with the soldered battery.
You shouldn't need to adjust your fuel pressure. Stock pressure works fine. There are reasons to change it but your build isnt one of those cases from what I can tell. As long as you have a fuel pump that can support your power goals, you are fine. You should set it at 40psi with the pump running engine off, or you can do it engine running with the vacuum line removed. There is a diagnostic port in the passenger side back corner of the engine bay. You can jumper the fuel pump relay with a wire or paperclip and set base fuel pressure. Thats the easiest way I have found to do it.
The TPS is really easy to set up and is actually part of the tuning process. One of the first steps after getting it running is to adjust the throttle blade so the IAC reads a specific reading. As long as the TPS voltage is between like .5 and 1.1v, the computer will see it as closed. It simply takes the lowest reading it gets and sets that as the closed throttle point. It doesnt have to be the .97v myth that was floating around these boards for years. FYI, the TPS itself is not adjustable unless you have a specific throttle body that has the adjuster ring. 90% of throttle bodies do not have that feature because its not needed. TPRT has a gauge display that lists all of the important paramaters on one page. The IAC percentage and TP_Rel information are both on that display so its really easy to set up.
BE or TPRT doesnt have an autotune feature but, EFI dynotuning has the MBT chart that tells you where you should be setting timing based on your heads so its pretty easy to dial in timing. If you use Deciphas base tunes, his tune has has histograms that tell you your fuel error and how much to adjust by maf voltage. Its not autotune but it tells you how much to change so its basically the same thing. You just manually enter the data instead of having it auto set the cells.
I definitely don't want the battery to die then and thanks.
I will have an adjustable fp regulator by the way. Will I be able to just switch the car on before the first fire and adjust the fp or it needs to be jumpered?
Yeah I remember messing with setting the tps back in the day and fooling around with Idle set procedures. I'll likely run and accufab 90 tb; are you saying the tps will basically be set when you mess with the throttle blade? Or adjusted at the laptop?
Gotcha. Yeah I just have to see which route I'd prefer overall of QH vs letting my tuner do it. I might have to trailer it 2 hrs since he doesn't do mail tunes for me to get it started up. I'll just have to consider apples to apples from one way vs another.
I do know that the setup will likely stay forever or a minimum of 10 yrs or more. I have 2 other cars too and 2 trucks and so they need attention too. So it's not like I'll be messing with the tune and changing up/ect.
Here's my intended combo and if Prestige Motorsports build it some of the pieces they use for the particular setup I'm thinking about:
Find all the details on our Ford Small Block F427-HR-C1 engine here. Prestige Motorsports in Concord, NC.
www.prestigemoto.com
The cam specs are 243/251 @ .050, .565/.549 lift, 110 lobe separation
TFS R intake more than likely
Prestige Motorsports Aluminum heads, 2.02/1.60 Valves,
59-cc Chambers, 185-cc Intake, Bare head, Pair
1 3/4 LT's
Fuel injected
90 mm tb with a 92 or 97 mm MAF