Truck is a 92 4.9 with M5OD
Current mods:
245/75/16 tires
3.90 gears
No cats, stock y-pipe connects to 3" pipe, Which runs to just behind tranny crossmember, then it's 2.75od 2.5id pipe back to the stock muffler. Which will be coming off for something better before I do anything else.

Not sure if any of that matters but too much info can't hurt. What I'm wondering is how much modification can a aftermarket chip support. Christmas is coming, but afterwards I'm thinking about trying to get as much out of the truck as I can.(Tax Returns???)

Proposed mods:
19lb/hr injectors with adjust. reg.
Cam, size currently unknown I'm open to suggestions here. I don't want something radical though. By which I mean decent idle and useable rpm range.
Head ported and MAYBE a little bigger valve.
Not sure but might also include a bigger throttle body.

Well what do you think. Can a custom chip be made that will handle that. Or even part of that. 93 octane fuel is scarce around here but 92 is available if you look for it. Would that be acceptable. The computer code may be F2TB, then again that could be the air-conditioner, I wasn't too sure what I was looking for.

What other info would be needed to support the programming. For ex. flow numbers on the head. Obviously going to need exact specs on the cam. What else?

Also as there are no cats I've removed the line that ran down to them. The one running into the head remains because I'm assuming that removing it could wig out the O2 sensor. Am I right? If I am right could the reprogram include changes that would allow the entire air pump assembly to go away? No need to use my ponys to pump useless air.

Lots of questions I know but the only way I have to learn is to ask.
Thanks for your time.

 

Custom code can handle that. We target 91 octane. Basically, anything that can be handled by ignition timing and A/F ratio can be done with a chip. A chip generally can't overcome inherant mechcanical problems such as idle lope from too agreesive a cam. For custom code we supply a three page sheet for you to fill out all the details and we program based on that. F2TB is the beginning of a Ford part number, not an ECU code. Your code will be 3 or 4 digits, in one of the following formats LNLN or LNL (L=letter, N=number). You are correct about the oxygen sensor.

 

Does S2U1 sound better? Found it on a small galvanized box behind the E-brake bracket, as described in other posts here.

Just to clarify, you can compensate for the loss of the air pump?

Also how do the dual program chips work? Do I gotta reach into the guts and flip a tiny little lever? Or does it work off a dash mounted switch.

Have you done any turbo applications? Any problems with forced induction?

Thanks again. I don't want you to forget how much I appreciate the use of your time and brain.

 

>Does S2U1 sound better? Found it on a small galvanized box
>behind the E-brake bracket, as described in other posts
>here.

I don't show that available from either Superchips or Diablo. We would need your computer box for about 10 minutes to read it so we can produce a code.


>Just to clarify, you can compensate for the loss of the air
>pump?

Yes.

>Also how do the dual program chips work? Do I gotta reach
>into the guts and flip a tiny little lever? Or does it work
>off a dash mounted switch.

They come with a cable so you can mount them where convenient.

>
>Have you done any turbo applications? Any problems with
>forced induction?

Yes. A lot of them. Problems? Sure. Any tuner who says otherwise is lying. Most of the time they work great the first time, especially if you can supply us with before/after dyno charts with A/F ratio information. Sometimes it takes more than one try.

 

>I don't show that available from either Superchips or
>Diablo. We would need your computer box for about 10
>minutes to read it so we can produce a code.

You're located in Canada, right? I'd think someone would have a problem with international mail containing a metal box full of circuitry. With my normal luck it'd get detonated by the ATF bomb squad. However, I gotta assume you do this regularly without problems. Is there anything special required for shipping them.

>Yes. A lot of them. Problems? Sure. Any tuner who says
>otherwise is lying. Most of the time they work great the
>first time, especially if you can supply us with
>before/after dyno charts with A/F ratio information.
>Sometimes it takes more than one try.

Is this a common thing? I only know of one dyno for sure around here. It's an engine only dyno, and it wouldn't really work to pull everything out of my truck for testing. There's SUPPOSED to be a chassis dyno about 45 minutes from here. The little I've heard about the guys with the chassis dyno isn't real encouraging. I don't know if they'd be capable of helping any on a project like this. Is the A/F ratio something most of them can check. As you can probably tell I know very little in this area.

 

>You're located in Canada, right? I'd think someone would
>have a problem with international mail containing a metal
>box full of circuitry. With my normal luck it'd get
>detonated by the ATF bomb squad. However, I gotta assume you
>do this regularly without problems. Is there anything
>special required for shipping them.

No, we're located in Atlanta, Georgia. The only thing that should be done is to put bubble wrap around the computer. I also recommend putting

>Is this a common thing? I only know of one dyno for sure
>around here.

No. The majority work the first time but some can be a tough nut to crack. Mostly this happens when someone has over modified their vehicle and track tuning is more appropriate but there have been a few that have been a nightmare. V10's come to mind.

Any good dyno company should be able to give an A/F chart. Ask them to make sure. Without A/F its harder to know why you're getting less power at a given RPM.

 

>No, we're located in Atlanta, Georgia. The only thing that
>should be done is to put bubble wrap around the computer. I
>also recommend putting
>
Bad day Ken? Or not enough sleep last night?

 

.... :-) putting it in an anti-static bag.