I'm now doubting the Kenne

Discussion in 'Fox 5.0 Mustang Tech' started by Shaolin Crane, Aug 1, 2009.


  1. NIKwoaC

    NIKwoaC 中國製造

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    Oh, I understand, even a ported GT40 lower is going to choke a healthy 347 NA. If you were going to go with a custom setup like that, seems to me a custom sheet metal lower would be in order.
     
    #61
  2. 1991GreeNLX

    1991GreeNLX New Member

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    those kb blowers are really for a stalk or 306 setup you want big power gains go centrifigul i think i spelt it right 347 is to much cubid inch for for the kb charger.
     
    #62
  3. Shaolin Crane

    Shaolin Crane Banned

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    uhm im not trying to be a dick but there are a lot of words you miss spelled
     
    #63
  4. Gearbanger 101

    Gearbanger 101 Straight Outta Locash Super Mod

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  5. FastDriver

    FastDriver Mod Dude

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    Are there efficiency charts for twin-screw blowers? I'd love to see how one compares with a turbo/centri compressor.

    Also, if a ported GT40 lower is good enough for 320 rwhp n/a, why would it choke a 2.8L KB? How much power do those motors make at 15psi, or roughly 2 bar on 4.6L motors? I mean, that 320 rwhp windsor should be pump over 600-ish rwhp at that pressure.

    Chris
     
    #65
  6. Shaolin Crane

    Shaolin Crane Banned

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    im not even sure it would be possible to run a 2.8 on the car so i doubt it would matter
     
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  7. dieselSN95

    dieselSN95 New Member

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    if your just going for a occasional track car with daily duties turbo is the way to go. when i had my 91 eagle talon TSi i had full spool at 2800rpm you just have to make sure the turbo is sized right for the engine. call hellion or hp they will hook you up. lets face it when you can get 330 ft/lbs of toruqe out of a 2 litre 4 banger you've done something right. i seen that car run 9.95 at 143 and drive 25 miles to the track. and with a 2-way boost controller its back to docile at the flick of a switch.
     
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  8. Shaolin Crane

    Shaolin Crane Banned

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    turbo isnt gonna happen, might not get tracked much but will see street time even less, this is not my DD not even close, i have a truck for that
     
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  9. Notchbck93

    Notchbck93 New Member

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    Anderson Ford gives a recipe for 758 rwhp on pump gas.


    Go to tech articles...Anderson Ford Motorsport Home Page

    June 2007 under 5.0 Mustangs and Superfords.

    AFM - Pump Gas Brags
     
    #69
  10. Shaolin Crane

    Shaolin Crane Banned

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  11. FastDriver

    FastDriver Mod Dude

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    But a 750 rwhp turbo is not going to spool that low on a 331 cube motor. That's at least a 70mm turbo. Sizing a turbo is a give and take game. If you want to take more power, you have to give up spool time.

    On a side note, you saw a car with 330 ft-lbs run 9.95@143? How much did said car weigh? These numbers do not add up unless it was making that torque at 10-12,000 rpm or the car weighs around 1500 lbs.
     
    #71
  12. 90lxcoupe

    90lxcoupe Mustang Master

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    i was wondering the same thing
     
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  13. 2000xp8

    2000xp8 Mustang Master

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    I don't think anyone should be suggesting a turbo pushrod engine for a road track car.
    The car will be completely unpredictable.
     
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  14. srtthis

    srtthis the guy doing it does every local racers rear end

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    custom sheet medal intake with a 03 cobra or lightning intercooler would be a route id be looking into.
     
    #74
  15. Gearbanger 101

    Gearbanger 101 Straight Outta Locash Super Mod

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    I hope you've got a 10" cowl hood to go along with it. The Cobra/Lightning intercooler is one thick mo-fo. Remember the engine valley between the heads is no where near as deep on the OHV engines as it is on the OHC ones. Hence the reason many PD blower kids now actually invert their blower on the 2V and 3V SOCH engines. There's just so much unused real estate under there, they'd be a fool not to take advantage.
     
    #75
  16. srtthis

    srtthis the guy doing it does every local racers rear end

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    i know exactly how big it is... i worked for amazon racing for a VERY long time ive pulled a few blowers out. but if you look at the 2.8H its only about 6 inches tall and about another 6-7 for the intercooler. a 4 inch cowl should be enough to clear it id think. should be any taller then say a lightning motor which i think needs a 6" cowl to clear
     
    #76
  17. Shaolin Crane

    Shaolin Crane Banned

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    well i think im going with the Si or YSi now, plus i HATE cowl hoods
     
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  18. Gearbanger 101

    Gearbanger 101 Straight Outta Locash Super Mod

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    Don’t take this the wrong way, but it really doesn’t matter where you worked to be quite honest, You still seem to have missed the point I was trying to make. You literally don't have the real estate in the oil galley on an OHV 302 to work with that you do an OHC engine. Yes, it requires approx a 7” cowl hood in a Fox body (at least that what was needed with MM&FF’s Project Frightning a couple years back) with a complete lightning engine, but we’re talking lightning blower and intercooler with a custom manifold on an OHV engine….not an OHC. Its gong to be considerably more than just 12 or 13” of Blower + Brick in over overall height…especially when you consider having to factor in the actual manifold itself into that equation.

    Take a good look at Frightning and try to visualize what it would need to look like with the need for even more hood clearance?!? :eek:

    [​IMG]

    …and this was bolted to its original 5.4L SOHC engine, with their original use of a 4” cowl hood

    [​IMG]

    The OHV engine doesn’t have a deep intake galley to work with like the OHC does. You’d have to increase the intake height and therefore the brick and blower height considerably just to elevate the intercooler brick high enough in the galley to keep it from sitting on top of lifter bosses. On top of than, you’ve got 16-pushrods in close proximity also in the way, which requires even more elevation still. You’d actually be further ahead with a 351W as a custom set up than you would a 302W, since you’ve got an extra 1-2” of width to work with.

    Here’s another example of a 6-71 on a 351W intake.

    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]

    Even if you disregard the top feed carb inlet, the physical size of the 671 isn’t more than about 2-3” taller than the 2.8L H. Take into account that even with the difference in height, the picture blow has zero provision for another 7” of intercooler brick and increased manifold depth and there’s no way you’re getting that thing under a 4” cowl hood. Not in this lifetime!


    No, I stand by my original statement of at least 10” of cowl hood needed to make it work. :)
     
    #78
  19. srtthis

    srtthis the guy doing it does every local racers rear end

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    lightning intake is kinda on the overly large side... its got a inch or 2 gap between the blower and the intercooler then its got that plentum on top of the blower the kb enters in the back... im not saying its going to be an easy task but i think it can be done. just need to be creative
     
    #79
  20. srtthis

    srtthis the guy doing it does every local racers rear end

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    if you hate cowl hoods going to a bigg KB is outta the question
     
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