Build Thread Want To Blow 5 Years And $50k On A Foxbody? Step By Step Instructions Inside!

I've been reading a lot about Alpha-N tuning for the idle. The Holley offers a combo mode where you can use Alpha-N for the idle and speed density for the rest of the fuel map. The Alpha-N just uses the TPS and lbs/hr fuel to tune at idle, and can be set to turn over to speed density at a specific TPS or RPM value. That may be the way for me to go due to my low vacuum at idle. I think the ECU is going to have a hard time at idle because of my cam. I'll see what Kris thinks, but it may be a viable option.
What RPM are you trying to get the car to idle at? With a FAST XFI getting idle speed to just under 1,000 RPM is no problem with a cam that has over .700 lift and duration over 258* at .050 so one would think that the Holley system should easily be able to accommodate your set-up.
 
Kris had the car idling pretty well the last time around at 900 rpm. It was just the cold idle that was the issue. The car wouldn't keep an idle under 150 degrees. I'm sure he'll be able to get the car to idle fine. My cam is not nearly as radical as that one.
 
Just whoring another engine bay picture.

06cd5654fd2f9aef67a59511b344ffa0.webp



In other news, I was browsing around online and I think I'm going to get myself into another (unnecessary) winter project. I found out that Holley came out with a 7" digital dash late last year. The next firmware update will allow it to expand my HP ECU's input and output capacity. That would allow me to get the ECU to control more things without having to upgrade to the Dominator ECU. That 7" display also nicely fits into the stock gauge shroud area. I can sell my existing gauge plate and gauges for what the digital dash would cost me. Some re-wiring will be necessary, but it's nothing major. The digital dash even has provisions for blinkers, high beam, and barking brake inputs.

I can also then get the Holley to control the electric fan and water pump and sell my Dccontrol unit. Same deal with the boost controller. I don't really need any of these external units. They just add points of failure, IMO. The Holley EFI was not part of the original plan, so that's why I have all these other units. Now that I have the Holley, I'd like to use it to its full potential and I would actually save money in the process. Maybe I'll also switch to a DIS setup as well and ditch my CD ignition box. I've gotten real good at doing things twice, so I might as well continue the tradition!

5135a6b1099db6dd09fb1198e531ea52.webp
 

Attachments

  • 2d534c5d06849eed5046977abe2fac33.webp
    2d534c5d06849eed5046977abe2fac33.webp
    65.8 KB · Views: 207
I love my digital dash (FAST) even though it isn't nearly as fancy as that one:(... Controlling the fan and water pump on the ecu is a great idea imho, the ecu triggers the ground side of the relay and you get to eliminate a ton of unneeded devices like you said. Not quite sure what a barking brake is thougho_O:nonono:

Engine bay is absolutely killer btw!
 
Just whoring another engine bay picture.

06cd5654fd2f9aef67a59511b344ffa0.webp



In other news, I was browsing around online and I think I'm going to get myself into another (unnecessary) winter project. I found out that Holley came out with a 7" digital dash late last year. The next firmware update will allow it to expand my HP ECU's input and output capacity. That would allow me to get the ECU to control more things without having to upgrade to the Dominator ECU. That 7" display also nicely fits into the stock gauge shroud area. I can sell my existing gauge plate and gauges for what the digital dash would cost me. Some re-wiring will be necessary, but it's nothing major. The digital dash even has provisions for blinkers, high beam, and barking brake inputs.

I can also then get the Holley to control the electric fan and water pump and sell my Dccontrol unit. Same deal with the boost controller. I don't really need any of these external units. They just add points of failure, IMO. The Holley EFI was not part of the original plan, so that's why I have all these other units. Now that I have the Holley, I'd like to use it to its full potential and I would actually save money in the process. Maybe I'll also switch to a DIS setup as well and ditch my CD ignition box. I've gotten real good at doing things twice, so I might as well continue the tradition!

5135a6b1099db6dd09fb1198e531ea52.webp
I want a 4k pic next I just love the outcome of this engine bay.
 
Haha. Thanks guys. I'm happy with how the bay came out. Now we just need to nail this tune down and we're ready to rip.

I've been working on the hatch interior over the past few days. I have all the MDF cut. It's coming along nicely. I should have some pictures up later tonight.
 
  • Like
Reactions: stangboy
I hear that. I needed to switch gears a little bit and get away from the engine stuff. I enjoy working on every part of the car, but sometimes you just get sick of turning wrenches on the same stuff for weeks at a time. Now my garage is all full of sawdust from cutting up MDF.
 
The holley dash is badass, the possibilities of stuff it can do is only limited by the user. If i were you i would order one now, cause like everything else holley, the price will go up and up.

Have you messed with math channels at all yet? You should check that out, you can set up guages to do pretty much anything you want with them. I found one that would estimate horspower off of the datalog. I also talked to the guys at holley about making some sort of odometer with the dash and they said it is definitely possible. I have one just sitting on the shelf waiting to go in.
 
It's so funny you mention the odometer. That was the only thing I realized I would need on the dash. It would be so easy for them to add that because the Holley digital would already have the speed sensor input for the speedometer, and I have a hall effect speed sensor all ready to be hooked up. It would be nice if the digital dash can accept a magnetic 2 wire sensor input like the dominator. I guess I'll find out once they release the I/O harness for it.

I thought about pulling the trigger on it sooner than later and doing the firmware upgrade once holley releases I/O update.
 
you can hook the speedo into an input and use the math channel to calibrate it, that is what i was planning on doing. I have a magnetic collar on the DS so i will use that for a signal.
 
Just whoring another engine bay picture.

06cd5654fd2f9aef67a59511b344ffa0.webp



In other news, I was browsing around online and I think I'm going to get myself into another (unnecessary) winter project. I found out that Holley came out with a 7" digital dash late last year. The next firmware update will allow it to expand my HP ECU's input and output capacity. That would allow me to get the ECU to control more things without having to upgrade to the Dominator ECU. That 7" display also nicely fits into the stock gauge shroud area. I can sell my existing gauge plate and gauges for what the digital dash would cost me. Some re-wiring will be necessary, but it's nothing major. The digital dash even has provisions for blinkers, high beam, and barking brake inputs.

I can also then get the Holley to control the electric fan and water pump and sell my Dccontrol unit. Same deal with the boost controller. I don't really need any of these external units. They just add points of failure, IMO. The Holley EFI was not part of the original plan, so that's why I have all these other units. Now that I have the Holley, I'd like to use it to its full potential and I would actually save money in the process. Maybe I'll also switch to a DIS setup as well and ditch my CD ignition box. I've gotten real good at doing things twice, so I might as well continue the tradition!

5135a6b1099db6dd09fb1198e531ea52.webp
How is it that you have to spend a couple of grand to get a Holley ECU to control a WP, cooling fan, and speedo when you can get that for 400.00 w/a MS II?
 
You don't have to spend a couple grand to do it, you just have to wire in the outputs to the ECU. Ive had MS2 and i currently have the holley and there is no comparison for the two, the holley is much easier to use, the learning feature on the fuel map works much better and you get rid of the old junk engine harness with the holley stuff. I know you can build a harness for the MS2 but not for $400 bucks.
 
  • Like
Reactions: FoxMustangLvr
If you've already got a dash mount I might have missed it but thought you might like something like this.
Just picked it up for my car to hold the 7" Holley dash
image.webp

Guy has them CNC'd and then smoothed at a body shop. He's supposed to start on fox dashes next.
 
That's awesome! Can you put me in touch with this guy? I reached out to MC-machine and he can make me a blank plate that I can take to a local machine shop to have it cut for the display.

I'd like to know what your guy would charge for a fox setup. I'm not a fan of the ABS plastic that Florida 5.0 uses, so I'm researching alternatives.

Does that cover up the auto brightness sensor?