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Thread: let's chat

  1. #281
    Join Date
    Oct 2007
    Posts
    966

    Default

    I hate FB but I love conversation so I am gonna change it up a bit here so we can spark some conversation

    AERO--in crates

    I am an old guy and 30 years ago aero stuff was only for looks but in today's world it seems to be just as important as engine, chassis, tires and shocks even on short tracks

    I drive a 34 foot motorhome to most races and I have learned more about air while driving that thing than many have learned in a wind tunnel---but what I know for sure is that air absolutely makes a difference

    can you believe we would talk about drafting in dirt late models or the "aero push"--LOL

    Brad
    www.race-1.com

  2. #282
    Join Date
    Aug 2018
    Posts
    4,119

    Default

    Any hp differences between a block mounted fuel pump or reverse mount style? Seems like on social media, more are shipped out with the block mounted ones!
    An army of sheep led by a lion(Trump), is mightier than an army of lions, led by a sheep(Biden).

  3. #283
    Join Date
    Oct 2007
    Posts
    966

    Default

    Great topic Zero
    what we have found in the 400HP world of crates is that it really doesn't add up to a hill of beans either way

    we do like rear pumps for keeping the heat from the fluids
    chassis builders like rear pumps for more central weight
    it is a debate subject that a belt pump has less cavitation than a pulse pump but i truthfully cannot say dyno wise that I see a benefit in the 400HP application either way

    I want to wish everyone a very happy Thanksgiving
    it is the best day of the year

    Brad
    www.race-1.com

  4. #284

    Default

    IMCA just changed from 6400 rpm to 6800. What should I look at doing with my 45 race old crate? I have not changed valve springs but won the last two races we were in.

  5. #285
    Join Date
    Oct 2007
    Posts
    966

    Default

    this recent change by IMCA will have plenty of your competitors lacking performance and flirting with engine failure on race day---you are ahead of the game by researching the topic before changing the chip and adding gear.

    going from 6400 to 6800 is going to perk them babies up without a doubt but the valve train must be addressed---

    worn out springs will run just fine at 6400 but to achieve 6800 with performance and dependability you need to be on top of the spring maintenance and something else is installed height.
    many times when an engine is intended to run low rpm (6400) the installed heights have not been set
    Setting those spring heights (CORRECTLY) is critical.

    set your installed heights
    install good qualified springs with an open pressure no less than 270 pounds at 1.300 (open)

    do that and you will be far ahead of the guys that just changed the chip and added gear

    hope that helps
    Brad
    www.race-1.com

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