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My 98 super charged EX

Discussion in 'Elite Explorer Registry' started by 4pointslow, July 1, 2008.

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    1. 4pointslow

      4pointslow Explorer Torture Tester Elite Explorer

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      Tomorrow - car wash! And Fill tank with fresh 93 octane! Got to get all the dust off and make sure none of that bright green antifreeze is hiding anywhere in my front grill.
      Man that stuff really glows with dye in it.

      Hopefully the track opens tomorrow at 4:30pm, the weather looks to be great.
      Its calling for 59 degrees and partly sunny!

      I put the non modified supercharger on to lower boost.
      The three inch pulley is on and I have the 2.9,2.8,and 2.7 ready to install and test.
      My Pivothead Video glasses are charging right now.
      Also up for testing is the Ford racing throttle body with dual 63mm openings.
      If it works I can upgrade to a single blade unit.

      Cant wait!!! I am so exited!!!!
       
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    3. 4pointslow

      4pointslow Explorer Torture Tester Elite Explorer

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      If I can not at least hit a 12.7 (Tomorrow or Friday) then I will be surprised and disappointed.
      With the full 20lbs of boost that the other (modified) supercharger was putting out, I might have been able to hit 12.10 - 12.20.
      But I probably would have been picking up engine parts off the track the rest of the night. lol.

      With this unmodified supercharger and untested Ford Racing throttle body, I have no idea.
       
    4. ahodges

      ahodges Elite Explorer

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      What is your compression ratio now?
       
    5. vroomzoomboom

      vroomzoomboom Elite Canuck STOCK SUCKS! Elite Explorer

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      if you dont like em, i know i can find a happy loving home for them :D
       
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    6. 4pointslow

      4pointslow Explorer Torture Tester Elite Explorer

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      I don't know what the ratio is now?
      The heads had some metal removed from the combustion chamber area but there was also some removed to surface the deck I am sure.
      Probably the same as before 9.7:1

      The compression readings with a gauge should be 165-185 with these heads and cams.
      Readings higher than that could put a strain on the engine in places where it may not hold up. (head gaskets, pistons etc)
       
    7. Dono

      Dono V8 Limited turbo and retired SC 4.0 OHV Elite Explorer

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      Yea, we are going in to survival mode up here. Driving home from work today in 4wd at 35mph barely able to see 2 feet in any direction sucked.I
      want to get my w/m working this winter (Just need to figure out mounting the pump now, and the rest is hose/wiring routing), and cut out that crush bend cold side piping I have.
      Either way, I'm in a wheel well getting sand/salt/dirt/water in my hair or under the truck getting that crap dripped all over me. I'm not excited about it.

      So, up here we are living our lives thru you southerners eye's.
       
    8. delexploder

      delexploder Elite Explorer

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      awesome ! cant wait to hear how you do at the track
       
    9. 4pointslow

      4pointslow Explorer Torture Tester Elite Explorer

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      I just came across an interesting post on SCT's proracer forums.
      It is for the SiemensDeka 60lb injectors.
      It is stated to use .000949 for minimum pulsewidth.
      This is coming from some professional tuners, not just a random person.
      Thought I would put it out there for anyone using these injectors.

      I will probably try it out tonight If I remember since I can feel the injectors cutting out and in on deceleration.
       
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    10. 4pointslow

      4pointslow Explorer Torture Tester Elite Explorer

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      My Favorite Henry Ford Quote is "Failure is the opportunity to begin again more intelligently."
      lol
      My best run tonight was 13.20 with 2.7 inch pulley and 16 lbs of boost.

      Tomorrow the overdriven Supercharger goes back on and Friday will be the next test and tune day.
       
    11. Dono

      Dono V8 Limited turbo and retired SC 4.0 OHV Elite Explorer

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      Did the a/f change much? How about timing, you think you can adjust it a bit now? IAT's?
      So, your saying that with Cams and bigger heads the boost level didn't change? I thought for sure it would go down.

      I'm absolutely certain you will be able to bring that quarter mile time down.
      Thanks for the info on the injectors. I just made the change and I'll load it up now and give it a try on the way to work tomorrow.

      edit: Truck started with the minimum pw changed, and didn't rev out of control or anything bad (mine was set at .0004 previously, so .000949 is quite a bit higher (although not nearly as high as the ford racing 60#v2 value file).
       
      Last edited: November 21, 2017
    12. CDW6212R

      CDW6212R Hauls the mail. Elite Explorer

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      I hope you had a great time at the track, even if the time slips didn't turn out as hoped for. You've got a new combo there, you know it'll take some time to sort everything out. I'm also sure it will improve, in time.;)
       
    13. 4pointslow

      4pointslow Explorer Torture Tester Elite Explorer

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      I wont know about boost levels being lower with new heads and cams until I put the overdriven Supercharger back on.
      I put the stock GT500 one on to lower boost for testing.
      I also used a smaller throttle body.
      I tried to add 2 degrees timing but it did not help.
      A/F was slightly rich in a few areas due to stock supercharger (spinning slower less boost)

      When I get the overdriven one back on we will see what can happen.
       
    14. 4pointslow

      4pointslow Explorer Torture Tester Elite Explorer

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      Oh and boost was 16 lbs max with 2.7 inch pulley.(tonight)
      The overdriven one pinned gauge at 20 with 3.3 inch pulley! (before heads and cams)
       
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    15. 4pointslow

      4pointslow Explorer Torture Tester Elite Explorer

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      I did get some new pictures too!

      IMG_1533.JPG IMG_1534.JPG IMG_1535.JPG
       
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    16. CDW6212R

      CDW6212R Hauls the mail. Elite Explorer

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      I like that big 3.3" pulley getting it done. I hope I can end up with at least a 3" size, with the 7" crank pulley I have. How is that ASP pulley doing, the PS 8-rib piece? I finally test fitted mine, I had to try it on a different PS pump(my Mercury PS shaft was bigger/rusty).
       
    17. 4pointslow

      4pointslow Explorer Torture Tester Elite Explorer

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      The power steering pulley is awesome, no problems there.
      The 3.3 inch pulley kind of sucks in that it makes noises when cold. It squeals real loud, everyone can hear it.
      It is a VMP tuning pulley,I think it is inferior to the Metco pulleys I used tonight.
      The problem with Metco is they only come in sizes 2.7 to 3.0 inches but the VMP come 2.5 to 3.3

      I will test the overdriven supercharger with the 3.3, and if the truck takes it I may try the 3.2 and 3.1 I have.
      I wish I had a 3.0 to test, if that would work I could swap back to the Metco pulley system.
      I also have a 2.7 and 2.5 in VMP, but think they will be too small to drive the overdriven supercharger, probably have belt slip.
       
    18. CDW6212R

      CDW6212R Hauls the mail. Elite Explorer

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      What is the rpm range of that blower, and are those both Eatons, or the TVS new units? I forget what most people have on their trucks, sorry to be absent minded.
       
    19. vroomzoomboom

      vroomzoomboom Elite Canuck STOCK SUCKS! Elite Explorer

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      another question. what was the mph last year compared to this year?

      good job. oh, btw. once again thanks for making mine, dons, and andy's life hell again lol
       
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    20. 4pointslow

      4pointslow Explorer Torture Tester Elite Explorer

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      The superchargers are both Eaton M122's, I have heard them refered to as H122's.
      They are off the GT500's up to 2012 so they are not the Eaton TVS style as that came out in 2013.
      I don't know the rpm range for the stock one but I was told not to exceed 19,000 RPM on the overdriven one.
      I don't know if that was the rotor speed or pulley speed so lets say rotor speed for safety of the SC.

      I cant remember my exact crank pulley size off the top of my head but say around 6 inches.
      Last night I was using stock SC with 2.7 pulley so...
      6/2.7 =2.22 * 6250 = 13888

      Overdriven Supercharger supposed to have aprox 1.33 overdrive If I recall.
      6/3.3 = 1.82 * 6250 = 11375 * 1.33(overdrive) = 15128
      If I go with 3.1 inch pulley
      6/3.1 = 1.94 * 6250 = 12125 * 1.33 = 16126
      If I get a 3 inch pulley
      6/3 = 2 * 6250 = 12500 * 1.33 = 16625

      Just for reference I would like to add it was 59 Degrees last night and the pressure was 30.1 according to my iphone6s.
       
      Last edited: November 22, 2017
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    21. ahodges

      ahodges Elite Explorer

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      You would never suspect a 13 or 12 second truck by looking at it. This thing is incredible.
       
    22. WormsExplorer

      WormsExplorer Elite Explorer

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      I love how you got it looking so beautiful and a Sleeper. No one would guess a 13 sec truck looking at it. Awesome job sir.
       
    23. 4pointslow

      4pointslow Explorer Torture Tester Elite Explorer

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      Thanks!
       
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    24. 4pointslow

      4pointslow Explorer Torture Tester Elite Explorer

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      Overdriven supercharger is back on!
      Put a new Optima Battery in too, old one was dying a slow death.

      IMG_1569.JPG
       
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    25. CDW6212R

      CDW6212R Hauls the mail. Elite Explorer

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      Thanks, those rpm numbers sound good/reasonable. I've heard the KB is a 18k top end blower, and some run them under 15k, others push their luck at 20k+. I'd like to keep mine under 15k also, to not have to get it rebuilt while I own it. The old KB's don't have any replacement parts left, just used units turning up occasionally. I spoke with Jon Bond for a few minutes last week. He said avoid used KB's if they may not be solid, there was(still is) a used 2400 on eBay with rough rotors.
       
    26. Dono

      Dono V8 Limited turbo and retired SC 4.0 OHV Elite Explorer

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      Ok, the suspense is killing me.
      Atco raceway conditions looked ok today (At least that's what the internet tells me, lol).

      I'm sooo curious. Something had to be holding your truck back.
       

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