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I bet that's right only the California trucks got MAF. The 393's were both speed density as far as I know. I assume that with the extra displacement smooth manifold vacuum was no problem with a duration that short.
I was thinking today and wondering if maybe a reason for the factory cams having a wide lobe sep in many of these engines is simply to allow them to be put into the engine with the intake closing way back. I don't know exactly where they had the cam but let's just say the cam was on 114 sep and in on 120. That would reduce low speed cylinder pressure and N2O emissions.
See post #4 in the link for stock cam specs. I believe these are the correct cam specs.
I didn't see any info on the centerlines just advertised duration and lift. It is interesting about there being two different HO camshafts for the 5.0.
I didn't see any info on the centerlines just advertised duration and lift. It is interesting about there being two different HO camshafts for the 5.0.
I must have posted the wrong link. Sorry about that. I will see if I can find it though i did not save the link.
and trying to find a Lighting PCM is a needle in a haystack for under a grand if you can even find one at all. That leaves MAF conversion with certain PCM's or go to the PimpXshift and ditch the stock stuff. Does this sound about right???
To me, no, not right.
Any EEC-IV computer can be tuned. All lightning EEC-IVs were SpeedDensity(SD), and probably had a hardware code of EFI-SD48.
Lighting computers had C3P1, C3P2 software/calibration/strategy codes and the hardware was EFI-SD48.
Any EFI-SD4x computer can use any other EFI-SD4x software/calibration/strategy, since the hardware is identical.
Any EFI-SD computer can be tuned with a J3 port tuner, Tweecer, Quarter Horse, etc.
PimpX works with both SD and MAF. It is not plug and play as we know it. I am pretty sure you have to re-pin some wires, depending on setup.
To me, no, not right.
Any EEC-IV computer can be tuned. All lightning EEC-IVs were SpeedDensity(SD), and probably had a hardware code of EFI-SD48.
Lighting computers had C3P1, C3P2 software/calibration/strategy codes and the hardware was EFI-SD48.
Any EFI-SD4x computer can use any other EFI-SD4x software/calibration/strategy, since the hardware is identical. Any EFI-SD computer can be tuned with a J3 port tuner, Tweecer, Quarter Horse, etc.
PimpX works with both SD and MAF. It is not plug and play as we know it. I am pretty sure you have to re-pin some wires, depending on setup.
So you are saying I could install big injectors and tune the SD's AFR's with a Tweecer or Quarter horse?? On the Pimp, Yes you have to change a few wires to use the Pimp for SD, I believe a few more for MAF and I think 1 to 2 more for the Xshift tranny controller.
I didn't see any info on the centerlines just advertised duration and lift. It is interesting about there being two different HO camshafts for the 5.0.
So you are saying I could install big injectors and tune the SD's AFR's with a Tweecer or Quarter horse?? On the Pimp, Yes you have to change a few wires to use the Pimp for SD, I believe a few more for MAF and I think 1 to 2 more for the Xshift tranny controller.
Could you elaborate on this EFI-SD4x
Yes, correct.
For larger injectors, you have to add/modify the injector data. As an example, if you adding 24lb cobra injectors, you need to do modify the following:
My trucks computer has software/strategy/calibration/catch code - KID2, that is KID revision 2. Is a 351w E4OD, with E7 heads, stock truck intake.
The lightning trucks have software/strategy/calibration/catch code - C3P1 as an example, is a lighting truck 351w E4OD, GT40 heads, tubular intake.
The lightning tunes are different, different shift strategy(firmer), different air flow requirements, and different ignition timing strategy....many more changes as well, fuel map, etc, etc.
Basically, as far as I know, all Speed Density (SD) computers for V8 trucks have hardware EFI-SDxx, early ones were EFI-SD2x, later ones being EFI-SD4x.
I have a 6cyl EFI-SD47A, that I run 351w tune on, using QuarterHorse. Just had to change engine size, number of cylinders, ...tune it.
All EFI-SD4x computers are plug'n'play, it is the same hardware, just different software. There are no wires to re-pin, if keeping Speed Density.
So, any EFI-SD computer hardware can be tuned, and can work.( with supported definition file) C3P1- Hardware code EFI-SD48B KID2 - Hardware code EFI-SD48B
Post your 4 digit code, and I'll tell you how well supported or not it is, and if a definition file already exists.
^^^ minor correction, any EFI-SD48 computer can have any SD strategy/calibration put on it.
I put the stock lightning tune on my stock 351w(non-lightning) computer.
Yes, correct.
For larger injectors, you have to add/modify the injector data. As an example, if you adding 24lb cobra injectors, you need to do modify the following:
My trucks computer has software/strategy/calibration/catch code - KID2, that is KID revision 2. Is a 351w E4OD, with E7 heads, stock truck intake.
The lightning trucks have software/strategy/calibration/catch code - C3P1 as an example, is a lighting truck 351w E4OD, GT40 heads, tubular intake.
The lightning tunes are different, different shift strategy(firmer), different air flow requirements, and different ignition timing strategy....many more changes as well, fuel map, etc, etc.
Basically, as far as I know, all Speed Density (SD) computers for V8 trucks have hardware EFI-SDxx, early ones were EFI-SD2x, later ones being EFI-SD4x.
I have a 6cyl EFI-SD47A, that I run 351w tune on, using QuarterHorse. Just had to change engine size, number of cylinders, ...tune it.
All EFI-SD4x computers are plug'n'play, it is the same hardware, just different software. There are no wires to re-pin, if keeping Speed Density.
So, any EFI-SD computer hardware can be tuned, and can work.( with supported definition file) C3P1- Hardware code EFI-SD48B KID2 - Hardware code EFI-SD48B
Post your 4 digit code, and I'll tell you how well supported or not it is, and if a definition file already exists.
Thank you. I will have to pull it to get the numbers so give me a day or so.
There is no changing of wires in typical applications using the Pimpx. For SD or MAF all you do is install the supplied jumpers into marked locations in the ECU box (based on what you have) and then plug into your harness. The supplied base tune gets you running and then you fine- tune on your laptop with every sensor, parameter or gauge available. They give you full instructions for setup and tuning. For sure there is a lot to learn if you're a rookie like me but I think the real value is in there direct support for troubleshooting. I have yet to read of any issue with a tune that they could not fix by examining tune files and that includes boosted setups.
^^^ Yes for sure. When spending more than $1000 on an efi system, you'd better get support.
PimpX price point is the same as Edelbrock ProFlo, and a little more money could get Holley Sniper.
I'm sure there are more systems that are similar in price with support models built in.
It is my understanding that Edelbrock ProFlo and Holley Sniper are for converting carb motors to EFI, a quick search revealed they are over double the price of Pimpx. I am not aware of any other systems designed specifically for Ford trucks.
^^^ Yes for sure. When spending more than $1000 on an efi system, you'd better get support.
PimpX price point is the same as Edelbrock ProFlo, and a little more money could get Holley Sniper.
I'm sure there are more systems that are similar in price with support models built in.
From what i see they have pretty good support. $1500 buys you the ignition, fuel, & tranny controller. How much is the system you are talking about and how hard are they to tune?? I mean with the Pimp all you do is have to adjust the idle then set your A/F ratio's table and go for a drive and it selfs tunes it self.
I just did a quick price quote:
Pimpx: $1,350
Holley HP: $1,370
Edelbrock Pro Flo, scratch that, it is for traditional carb to efi.
MegaSquit3: $500- $1,230 depending on DIY or completely built.
There are more, just showing the options.
PimpX is just MegaSquirt3 in a Ford ECU box, that is what makes it plug'n'play, connects to current EEC in Fords.
I mean with the Pimp all you do is have to adjust the idle then set your A/F ratio's table and go for a drive and it selfs tunes it self.
I don't think that is quite correct either.
Here is a quote from PimpX about the plug'n'play and auto learn feature:
Yes, it has a self learning/auto tune feature where you drive around and it adjusts the fuel table as necessary while you drive under varying conditions (idle, cruise, stop and go, high rpm part throttle, wide open throttle, etc.).
Don't mistake that with "plug it in and it just tunes itself" though as there are certainly more steps to it than that, and there is more to the tune than just the fuel table (though the base tune gets most of the other stuff done for you).
Bottom line is, it depends on your knowledge, your budget, your goals, and you as the tuner to select the other options around your cam selection.
Anything is doable, easy by some, might not be easier by others. I found it easiest to tune my stock EEC-IV without another computer, and deal with what I already got.
If I had $5000 to spare on a cam and ECU, I might look at some other option, like ProEFI or Haltech.
The Pimp x looks interesting, Question though would you need to get a dyno tune to dial it in or does it do it itself. And does it work with SD or does it take over the the whole system?
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