1994 Mustang GT money pit I mean project

Discussion in 'All Non-S197 Media' started by joe_momma, Nov 18, 2020.

  1. joe_momma

    joe_momma forum member

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    Thinking way ahead here...looking at Exploder GT40 intakes....

    Is there any difference between intakes with/without EGR provisions? Obviously there are the EGR holes/runners/whatever...but does it matter if you run one or the other? My car still has the EGR installed, but I have the plate/plug-in module to remove it. I guess my question is does it matter which one I pick up or does it "force your hand" to run the configuration of the intake you get? For example, can you run a no-EGR configuration with a intake that has the EGR plumbing? For some reason I had it in my head that I needed a non-EGR intake, but they are less common used than EGR versions. I'm not opposed to either configuration, but I don't want to get stuck with something I can't use should I come across a good deal.
     
  2. tjm73

    tjm73 of Omicron Persei 8 S197 Team Member

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    EGR, at part throttle, helps prevent detonation and clean up emissions a little bit. At WOT, the EGR is closed so no effect. Since the SN95 is external EGR, I'd get the non-EGR Exploder intake as they are easier to find and keep the EGR functional.

    Internal EGR was only made for about two years versus about four years for the non- EGR setup.
     
  3. 07gts197

    07gts197 forum member

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    Since you’re deleting it anyway I don’t think it matters.


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  4. joe_momma

    joe_momma forum member

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    Honestly I haven't totally made up my mind on the delete - I've read good and bad both ways. It seems some cars run into issues when deleting it - detonation, CEL (even with the plug), etc etc. And, I'm a pretty good ways out from major engine mods. I'd like to keep my eyes open for a good deal if I run across one, though.

    It seems that a H/C/I combo with exhaust (which is already done) nets about 300whp from my reading. That should be more than enough to make things "interesting" in a 3200# car. I still need to replace ball joints and probably freshen up the rear end at some point and it probably wouldn't hurt to change trans fluid.

    I'm going to take this weekend off from working on the car I think. If I do anything, I'm going to reroute some of the speaker wires. The "pro" that installed the previous system ran everything down the driver side. I need to get the speaker wires on the other side - that could be the source of some of my noise. I don't feel like I want to tear into the "big 3" upgrade this weekend. My body needs a break lol.
     
  5. 07gts197

    07gts197 forum member

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    I would keep the egr valve just because it isn’t hurting anything. And not that you’re interested in gas mileage, but it does help.


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  6. joe_momma

    joe_momma forum member

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    Lol it's really hard to verify my current gas mileage - the speedo only works about 1/2 the time. I need to get that gear changed out.

    EDIT: I think I'm getting around 17 FWIW.
     
  7. golkhl

    golkhl forum member

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    What rear gear is in your car joe_momma?
     
  8. tjm73

    tjm73 of Omicron Persei 8 S197 Team Member

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    If that's mostly around town, leaning on it often.... that's pretty respectable. On the highway you might get around 25-28 at a steady 70ish mph with stock gears.
     
  9. 07gts197

    07gts197 forum member

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    I bet it has a bad stepper motor, does cruise work?


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  10. joe_momma

    joe_momma forum member

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    They're either 3.73 or 3.90, I'm not sure. I do a mix of town/highway miles.

    Cruise does work. It's off and on and bounces quite a bit. It seems to fail when I get off the throttle, and come back on under load. I've got a replacement gear and clip, just haven't put them in yet. I'm planning to replace the bulbs in the cluster at some point (soon hopefully) as it's barely visible even on full brightness. If the gear doesn't cure it, I'll see about replacing the stepper motor while I'm in there.

    EDIT: are the stepper motors the same as the S197? Not seeing any stepper motors for SN95s.
     
    Last edited: Jan 15, 2021 at 10:10 AM
  11. 07gts197

    07gts197 forum member

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    Could be the gear I guess, have you run any codes to eliminate the vss sensor?


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  12. tjm73

    tjm73 of Omicron Persei 8 S197 Team Member

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    17 isn't too bad over all.
     
  13. jewc75

    jewc75 forum member

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    There are people on ebay that rebuild the stepper motors.
     
  14. joe_momma

    joe_momma forum member

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    I haven't ran any codes on it. I was looking at getting one of those OBD-1 scanners from Amazon, they aren't terribly expensive.
     
  15. 07gts197

    07gts197 forum member

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