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  1. R

    My quest for 30 MPG - Ford Explorer Gas Mileage Tips

    Oh yes his driving habits would have been impossible for me to replicate. I have a lead foot! :burnout: btw sorry for using the condescenting "with all due respect" phrase =P meant no harm by it. I just re-read it and realized I hate it when people say it to me.
  2. R

    My quest for 30 MPG - Ford Explorer Gas Mileage Tips

    Producing more power with the same fuel consumption is by definition more efficient. With all due respect to Rick and yourself, I think that Al Dive proved in this 105 page thread that the 4.0L SOHC is more than capable of producing > 21mpg.
  3. R

    My quest for 30 MPG - Ford Explorer Gas Mileage Tips

    Correct, efficiency doesn't have anything to do with max flow @ .500 but the problem is that the flow numbers are terrible throughout the entire lift range 100-500. We tested the flow @ 100,2,3,4 and 500 on the stock heads. This does pose a problem with efficiency - the faster you can get air in...
  4. R

    My quest for 30 MPG - Ford Explorer Gas Mileage Tips

    It has a lot to do with the efficiencies of the heads. I know for a fact that the OHV heads don't flow over 164 intake and 139 exhaust @ .500 lift in their stock form which is way more lift than the stock cam offers. The problem is inherant to the design of the heads. There is a sharp bend, the...
  5. R

    rubber flooring?????

    has anyone had any experience with this company's vinyl rubber flooring? http://www.auto-interior.com/ford28.htm#Explorer :edit: or this... http://www.varkmotors.com/EXPLORER_c_13199.html
  6. R

    R37... Time for my 4.0 build

    Yea, I gave up because the power I was looking for (450-550) would have been too costly on a 4.0 build and have built a 5.0. I didnt realize that they changed selling to be limited only to elite. I actually still have everything but the cam.
  7. R

    Dreaming of one mean 4.0: The Build up - Creager's 1992 Sport

    You can go with the 422 cam, custom length rods and rockers w/ hardened tips (the weak point on the 4.0L). As far as a head, you really have nothing available except stock replacement castings (i.e. Alabama Cylinder Heads). I bought a set of those, ported the heck out of them, opened up the...
  8. R

    I'm getting HORRIBLE gas mileage! Help me!

    My 97 x had a bad hose going from the filler neck to the gas tank. It was leaking right out of the tube ever time I went up hill or even hit the gas hard! The design on the filler neck tube is much better on my 96 that thing ain't ever gonna leak.
  9. R

    When to Change the Timing Chain?

    I was asking because there are a few engines out there that have a "non-interfering" valve train in that if one or more valves are left open at maximum lift (i.e. the timing chain broke) the piston will never hit them. http://en.wikipedia.org/wiki/Interference_Engines This references the Mazda...
  10. R

    When to Change the Timing Chain?

    Check for low oil. It could also be leaky lifters or weak oil pressure.
  11. R

    When to Change the Timing Chain?

    So the 302 is has an interference valve train?
  12. R

    Mechanix's going solid.

    I don't know that I can answer that question but are we goin wheelin when you get this crap all finished? I'm workin on mine too, sounds like you might be done before me.
  13. R

    HHO: Is it alchemy? Or will it improve gas mileage on a ’99 4.0 SOHC Explorer?

    Thanks, I literally just found that. TY for all the great info Al, may you RIP
  14. R

    5R55E Gear Ratio - Conflicting Info

    the bolt pattern is not the same, which is why we cannot bolt up a 4R70W (the 302 trans) to the 4.0 as many of us wish we could. The trans behind the 302 is MUCH stronger and has been in production decades longer. The 4r70w is a truck trans, same one behind the 5.0 in the F150 in the 90s. It was...
  15. R

    RCD lift kit PURCHASED!!!!! no more tortion bars 4 me!

    I believe they discontinued the lift :(
  16. R

    Ordered a Torsen for my D35 today...

    I went to Torsen's web site and got the phone number under the "contact info" tab. I talked to Rick Barnes. They will know exactly which Torsen you are looking for. I did not have a part number when I called. They have not yet updated their web site. There phone number is (585) 464-5000...
  17. R

    Mechanix's going solid.

    bla, its all good, that's what you bought the F-150 for right?
  18. R

    Ordered a Torsen for my D35 today...

    Nice, I haven't seen the ttiwwp smilie before. ...and here is what I've been spending all my time on in case you were wondering.
  19. R

    Ordered a Torsen for my D35 today...

    Yea, I was thinking the same thing. Then the guy from Torsen said its compatible with current Rangers, which means there is still a market for brand new vehicles and not just one for a dwindling number of old vehicles. Also, they could make a deal with Ford to include it as a factory...
  20. R

    Ordered a Torsen for my D35 today...

    This thing is a lot smaller than my TruTrac (which was pretty heavy). Shipping weight was 19lbs but it feels heavier than that.
  21. R

    Ordered a Torsen for my D35 today...

    Will do, thanks for the input. I will be regearing the front to 4.56 to match my rear. I received the front diff on Friday. I will get pics ASAP. I stuck my finger inside and felt en empty ring just before the spline so i think we're in good shape. :)
  22. R

    R37... Time for my 4.0 build

    Thanks for the comments. Appologies for the crappy pictures, I took them with my camera phone - I don't have a digi cam at the moment. @410, How much am I going to be into this for? Hmm well if you mean cost... haha I'll try to keep track in the first post but man it is expensive. I'm...
  23. R

    R37... Time for my 4.0 build

    Flow Numbers Flow Bench Intake Exhaust E/I Ratio Lift Stock Ported Stock Ported Stock Ported .500 164 184 136 149 82.93 80.98 .400 152 172 130 139 85.53 80.81 .300 125 152 105 127 84.00 83.55 .200 83 115 70 99 84.34 86.09 .100 50 59 31 50 62.00 84.75 Valves Stock Oversized...
  24. R

    Ordered a Torsen for my D35 today...

    Good point, I didn't realize that. I called him back, he said that it is specific to the 95-01 Explorer and will also fit the 98-current Ranger. Torsen confirmed payment and it is shipping out today UPS. ETA is two days.
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