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10/13/2020 10:16 AM  #1


$700 for a tune?

1966 Mustang Coupe, 1988 5.0 Swap, GT40 Swap, EFI-MAF

A racing shop here in Dallas wants $700 for the custom dyno tuning.  $500 for the tuning plus $200 for the custom chip.  Tuning is way out of my league... is this a fair price?

I looked up the megasquirt and microsquirt as DIY options... seems just as expensive.

 

10/13/2020 10:26 AM  #2


Re: $700 for a tune?

EFIDynotuning.com and a Moates Quarterhorse and a lot of read...Read...READ!!!   Or, you can get the Moates, do a little data logging and have Decipha send you a base tune for your setup but you'll still have to do some fine tuning yourself.

BB1

 


"you get what you pay for, good work isn't cheap, and there are NO free lunches...PERIOD!"
 

10/13/2020 10:49 AM  #3


Re: $700 for a tune?

That seems excessive, did they say how much time and how many pully on the dyno? Did they say how much is a re-tune if you make changes or do not like it?

 

10/13/2020 2:06 PM  #4


Re: $700 for a tune?

I think they said I do the pulls myself.  Which I assume is a liability thing.

I think it's $125 tunes after the initial setup.  I don't have a performance ride but I'm certain I'm still running a little rich.  Just need the fuel pressure and timing dialed in for my setup.  

Before I drop $150 on a wideband gauge and another +$500 on a custom tunable EFI I was really hoping to just have someone do this for me.   It's a big learning curve for something I don't plan to do very often. 

     Thread Starter
 

10/13/2020 2:46 PM  #5


Re: $700 for a tune?

What PCM are you running and what cam.  What EFI components have you changed?

BB1
 


"you get what you pay for, good work isn't cheap, and there are NO free lunches...PERIOD!"
 

10/14/2020 5:43 AM  #6


Re: $700 for a tune?

No need for tuneable EFI, the EECIV is tuneable with the right setup.  I would second the Moates QH, and I've used the EEC Analyzer + Binary Editor software pack.  You also need a wideband O2, which you can data log with that software through the EGR Position Sensor pin on the ECU (usually pin #27).  Here's some info on that:

http://efidynotuning.com/config.htm

I'm going to say that $700 is rather pricey, at least for around here.  I can rent a dyno for half a day for $500.  My guess is they will make maybe 4-5 pulls and do some tweaks, which all told probably takes less than an hour. 

Cost wise with the QH, software, and a wideband you'll be a little less than $600, but you will also never have to pay money to have it tuned again.  Also, you'll learn how to tune your own car.  A lot of people get scared about tuning EFI, but don't think twice about tuning a carb/standard distributor setup.  Its not any different, and the risks are the same; it just takes some learning.  As usual there's folks here that can help. 

 

10/14/2020 3:44 PM  #7


Re: $700 for a tune?

TKOPerformance wrote:

No need for tuneable EFI, the EECIV is tuneable with the right setup.  I would second the Moates QH, and I've used the EEC Analyzer + Binary Editor software pack.  You also need a wideband O2, which you can data log with that software through the EGR Position Sensor pin on the ECU (usually pin #27).  Here's some info on that:

http://efidynotuning.com/config.htm

I'm going to say that $700 is rather pricey, at least for around here.  I can rent a dyno for half a day for $500.  My guess is they will make maybe 4-5 pulls and do some tweaks, which all told probably takes less than an hour. 

Cost wise with the QH, software, and a wideband you'll be a little less than $600, but you will also never have to pay money to have it tuned again.  Also, you'll learn how to tune your own car.  A lot of people get scared about tuning EFI, but don't think twice about tuning a carb/standard distributor setup.  Its not any different, and the risks are the same; it just takes some learning.  As usual there's folks here that can help. 

Yea I looked up several DIY tuning options.  Just parts, software, and the wideband will set me back $500 minimum.  It's getting close to winter so maybe this is a storage time project, but I also don't want to spend weeks doing what someone can do in a few hours for $200 more.
 

     Thread Starter
 

10/14/2020 4:23 PM  #8


Re: $700 for a tune?

You know the saying: If you want something done right; do it yourself.

It applies here too.  Even if it did take you weeks it would be worth it because you would know how to do it forever.  I don't think it will take you weeks though.  There are some very good forums for EECIV tuning, read through all the stickys and you'll be like 2/3 of the way there. 

 

10/14/2020 7:12 PM  #9


Re: $700 for a tune?

My "tuner costs" on my old Corvette LS3 w mods and my current RC-F track car are right in that neighborhood. ($650 and $800) Sounds like a reasonable price to me. Experienced people, the ones who build the tunes, will detect a bad sensor on the spot; it might take weeks to de-bug it yourself. 
I am installing stack injection EFI and have budgeted about $900 for "2-way" tuning (after install and 6 months down the road. (My "road trip bag" now has a complete extra set of sensors in case I break down)
Let us know what you decide. 

 

10/15/2020 6:04 AM  #10


Re: $700 for a tune?

It all depends on what you want to do, how much time you have, how much money you have, etc.  There are certainly merits to having the car tuned professionally, but let me provide a bit of counterpoint:

The LS series engines run a much more complicated EFI system than the EECIV.  Troubleshooting the EECIV is pretty simple.  Most of the info is here:

http://www.amopower.com/eec-iv.htm

The EECIV still has a distributor, there are no crank or cam sensors, no variable valve timing, etc., and if you've disabled the emissions controls there's even fewer. 

There are pinpoint tests for everything Ford ever built, and these can be found in their service manuals which are all over eBay and not terribly expensive (I think I paid $50 for the last one I bought).  If there's a fault its one of three things: bad sensor, wiring issue, or the ECU is confused by a mechanical issue it "thinks" is an electrical one.  The sensors and ECU are pretty hearty.  At this point the major weakness is the wiring, unless yours is new.  Grounds in particular are a weak spot for any EFI system.  That all comes down to electrical troubleshooitng, and you'd be surprised how many tuners can't do that.  Its a different skill set. 

 

10/15/2020 7:11 AM  #11


Re: $700 for a tune?

TKOPerformance wrote:

It all depends on what you want to do, how much time you have, how much money you have, etc.  There are certainly merits to having the car tuned professionally, but let me provide a bit of counterpoint:

The LS series engines run a much more complicated EFI system than the EECIV.  Troubleshooting the EECIV is pretty simple.  Most of the info is here:

http://www.amopower.com/eec-iv.htm

The EECIV still has a distributor, there are no crank or cam sensors, no variable valve timing, etc., and if you've disabled the emissions controls there's even fewer. 

There are pinpoint tests for everything Ford ever built, and these can be found in their service manuals which are all over eBay and not terribly expensive (I think I paid $50 for the last one I bought).  If there's a fault its one of three things: bad sensor, wiring issue, or the ECU is confused by a mechanical issue it "thinks" is an electrical one.  The sensors and ECU are pretty hearty.  At this point the major weakness is the wiring, unless yours is new.  Grounds in particular are a weak spot for any EFI system.  That all comes down to electrical troubleshooitng, and you'd be surprised how many tuners can't do that.  Its a different skill set. 

Car is running well, I can just tell it's still running a bit rich.  A wideband sensor to confirm I'm outside of optimal fuel/air ratio will be $150 either way.  Only thing it needs it the timing dialed in and the fuel pressure adjusted.  This is not a performance car.  Maybe a few years from now I upgrade the CAM or go to a different gear ratio on the differential but that's not in the plans now.  Next 18 months I want to get a proper tune, upgrade to a 24" radiator, and upgrade to rack and pinion with a tilt steering wheel.  That's probably about $4k to $5k (don't tell me wife) that I'll be spending and none of that will really be performance related.  So investing the time and money in a DIY effort seems not worth it to me for something I only plan to do it once.  Not to mention, I don't have a dyno and dyno services are getting harder and harder to come by.
 

     Thread Starter
 

10/15/2020 9:50 AM  #12


Re: $700 for a tune?

I'm still wanting to know what PCM you have and what mods have been done to the engine or the EFI components.  If this is a relatively stock engine, as you first indicated, there should be no richness except at idle if you have the TPS adjusted properly and the wiring  and grounding is solid.  In closed loop operation it will run at or very near Stoic. (14.7:1) and at wide open throttle (WOT) it will run according to the requested Lambda in the PCM...probably around .875 Stoic.  Idle is where it can get confused if the TPS isn't set correctly.  Check EFIDynotuning.com for a procedure to adjust the TPS for idle with a stock setup.

And...if it's stock the timing should be set at 10 degrees BTDC with the SPOUT plug out.

BB1

Last edited by Bullet Bob (10/15/2020 9:52 AM)


"you get what you pay for, good work isn't cheap, and there are NO free lunches...PERIOD!"
 

10/15/2020 11:05 AM  #13


Re: $700 for a tune?

Pat at Quality Motorsports in Lewisville did my Vette tune. $600 (on the dyno) and I got a lot options regarding factory settings on the mid-range response, rev limiter, shifter, fan speed & temp setting, etc. Give them a call. (They book out pretty far during the Spring-time race season.)

Before you go, make sure all of your filters are new and clean; he busts folk's chops in a funny way if they bring him grime in the system; he had me run Sea Foam thru an entire tank of gas a few weeks before my appointment. Lots of other good stuff I could say about them.

Paul

 

10/15/2020 11:18 AM  #14


Re: $700 for a tune?

Bullet Bob wrote:

I'm still wanting to know what PCM you have and what mods have been done to the engine or the EFI components.  If this is a relatively stock engine, as you first indicated, there should be no richness except at idle if you have the TPS adjusted properly and the wiring  and grounding is solid.  In closed loop operation it will run at or very near Stoic. (14.7:1) and at wide open throttle (WOT) it will run according to the requested Lambda in the PCM...probably around .875 Stoic.  Idle is where it can get confused if the TPS isn't set correctly.  Check EFIDynotuning.com for a procedure to adjust the TPS for idle with a stock setup.

And...if it's stock the timing should be set at 10 degrees BTDC with the SPOUT plug out.

BB1

Block, Cam, Crank, Pistons, 19lb are all stock from the 88 5.0.
Switched to a MAF system and corresponding ECU, GT40 heads as well as GT40 upper and lower intake, MSD Ignition.

Like I said, it's not a performance ride, but it needs to be dialed in.  Could probably get by with mail order tuning as this setup is nothing to write home about.  But probably worth the extra $200 bucks to do it right and get it done in 2 hours vs 2 weeks.

     Thread Starter
 

10/15/2020 11:22 AM  #15


Re: $700 for a tune?

Just to close this out...

Talked to the guys at Moates.  

Pretty helpful.  He agreed that with my setup I would probably be fine with mail order tuning but Dyno tuning from a professional would be best.  He said $700 is about what they would charge to do it themselves in shop on a Dyno.   So there you have it.

     Thread Starter
 

10/15/2020 12:32 PM  #16


Re: $700 for a tune?

I have a Chip that goes between the pcm and the harness somewhere in my stash of 5.0 parts you can try

 

10/19/2020 8:04 AM  #17


Re: $700 for a tune?

Prof wrote:

Pat at Quality Motorsports in Lewisville did my Vette tune. $600 (on the dyno) and I got a lot options regarding factory settings on the mid-range response, rev limiter, shifter, fan speed & temp setting, etc. Give them a call. (They book out pretty far during the Spring-time race season.)

Before you go, make sure all of your filters are new and clean; he busts folk's chops in a funny way if they bring him grime in the system; he had me run Sea Foam thru an entire tank of gas a few weeks before my appointment. Lots of other good stuff I could say about them.

Paul

Called these guys in Lewisville.  They said they recommend all their ford guys go to the HPP folks in Garland.  He highly recommends them so there you go.  Looks like I'll be making a trip over there in the spring.

     Thread Starter
 

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