*Help Me Dial In My Engine*

Discussion in '94-95 5.0 - Specific' started by whiplash473, Oct 27, 2016.

  1. whiplash473

    whiplash473 Moderator Staff SN95 Supporter

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    So, as many of you know, I did extensive work to my car a few years back. Life threw some curveballs my way and the Mustang never got past the "it's running, just not well" stage due to it being forced onto the back burner of priorities. So I'm asking for some help in the department of physical tuning. The company I bought the stroker kit from and Trick Flow both told me that with what I did the vehicle should run respectfully without a tuned chip, which I could always get later on to get a little more out of the car.

    What I need is -

    Where should I base my timing?

    What fuel pressure should I have set at the regulator? Should I adjust this while the car is at idle, etc?

    TPS adjustments? Voltages?

    Those are the only things as of right now. I want to start there since I know both of those are not where they should be and I can't remember if I did the TPS or not so I want to check it.

    Mod list - 331 4" stroker. TFS Track Heat top end kit. Pro-M 80mm MAF. Anderson 4" Power Pipe. 75mm SR throttle body. 31# Ford injectors (red). Aeromotive fuel pressure regulator, I also have an Accufab I can use if needed/better. I think that's it.

    Thanks in advance for the help.


    Sent from my bored/stroked iPhone 6S
     
  2. the5.ohh

    the5.ohh Legend

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    Can't really comment much but the following. Pre tune, had a lot of erratic idling issues, stalling etc, rich as hell. Tune fixed all of that, however still needs tweaking. We left the tps alone. [MENTION=10188]white95[/MENTION] I'm sure will shed some light on this thread
     
  3. white95

    white95 Apex Junky Admin

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    Let's see....

    1] Set the distributor to 10*

    2] Start at 38 psi for the fuel pressure, you can check it with the key on or idling

    3] TPS voltage will be around .98 or so but read this: http://forums.corral.net/forums/6778307-post4.html

    This may help with some of your issues but you truly need a legit tune to "iron out all the wrinkles''.
     
  4. whiplash473

    whiplash473 Moderator Staff SN95 Supporter

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    10* retarded or advanced? And thanks for the info. I'll start with this and move along as needed.
     
  5. white95

    white95 Apex Junky Admin

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    Advanced*
     
  6. GearGambler

    GearGambler Member

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    great advice!

    If you have an aftermarket throttle body with the IAC bypass screw on it, make sure that is nearly closed. You could also do a base idle reset - when the car is warm, shut it down, pull the spout, unplug the TPS and IAC, Start it up and set the idle. Shut it down, plug it all back in and you should be good.

    That timing at 10* is critical with the 94/95's. it should only be advanced via a chip / calibration.
     
  7. whiplash473

    whiplash473 Moderator Staff SN95 Supporter

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    Thanks! I'm glad I made the thread. With you and White95 it's been helpful.


    Sent from my bored/stroked iPhone 6S
     
  8. Mach331

    Mach331 New Member

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    All good advice above. I highly recommend reading this if you are interested in learning to tune. http://www.efidynotuning.com/ Click on "Write ups" then "Getting Started". It helped me get my car running great.
     
  9. whiplash473

    whiplash473 Moderator Staff SN95 Supporter

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    That's great, thanks! I will.


    Sent from my bored/stroked iPhone 6S
     
  10. Firefighter181

    Firefighter181 Active Member

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    ..
     
  11. lietuvis91

    lietuvis91 New Member

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    I'm in the same boat as you. My car has been together for a while but never had time to mess with the tune, so it runs like SH*T...

    2017 is the year I should have time to wrap the car up. I'll keep an eye on your posts and share what I can. Keep at it and good luck! :thumbsup: