Regulating Motor temps with E85 ?
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Regulating Motor temps with E85 ?

  1. #1
    Urban Cougar Trapper Gopher711's Avatar
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    Default Regulating Motor temps with E85 ?

    I know I can restrict the water from them pump by using a gate valve on line coming in off pump ( no provisions for thermostat / competition blower intake is what I've got ) . Just seeing what temps you guys are able to maintain and how you are doing it
    Someone always comes up with a better mousetrap

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    Highaboosta Unchained's Avatar
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    My motor ran about the same temp on gas, E85, or Methanol.
    If its running too cold your too rich.
    Restricting your water flow when it's a fueling problem is the wrong way to go.

    An O2 sensor is your friend.

    Twin Turbo 1800 HP V-Drive lake boat

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    I think I could run more boost but it's a real hand full right now

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    Urban Cougar Trapper Gopher711's Avatar
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    Quote Originally Posted by Unchained View Post
    My motor ran about the same temp on gas, E85, or Methanol.
    If its running too cold your too rich.
    Restricting your water flow when it's a fueling problem is the wrong way to go.

    An O2 sensor is your friend.
    Mark , Sullens said to run motor at a minimum of 160-170* for proper fuel vaporization and burn , just seeing if there was a better way to regulate water temps than choking back supply from pump ....and I have no way to run a thermostat which would be ideal
    http://oathkeepers.org
    Due to the fact that GOD limited mans intelligence , it's unfortunate he did not also limit his Stupidity !!!

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    Senior Member Fireguy's Avatar
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    Kevin from CSU has said the same thing, yet I've kind of gone the route of marks thinking. I've thought about a closed cooling system with a heat exchanger, but I have other projects using up my time.

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    Highaboosta Unchained's Avatar
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    Quote Originally Posted by Gopher711 View Post
    Mark , Sullens said to run motor at a minimum of 160-170* for proper fuel vaporization and burn , just seeing if there was a better way to regulate water temps than choking back supply from pump ....and I have no way to run a thermostat which would be ideal
    Ok so your engine temp was low on gas originally then ?

    Back when I ran a jet I had the feed line from the pump restricted to a 5/16 ? ID and ran it that way successfully for years on the turbo engine.
    Even restricted it still got over 50# block water pressure at WOT.
    It may not be the best way but there are not many options.

    I tuned a FAST system on a friends 25 Daytona and those guys like to run them with no thermostat and the engine idles at 100 degrees.
    I had to set it to go into closed loop at 95 degrees.
    Then at WOT for a long run the temp would get up near 200 degrees.
    It was a difficult thing to tune that way.
    With a medium size procharger and 6# boost he runs around 115 with it.
    There are only 2 of us running E85 in boats around here.

    Twin Turbo 1800 HP V-Drive lake boat

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    Quote Originally Posted by Trigger View Post
    No one cares about your buddies old antiquated garden hose technology.
    Quote Originally Posted by MAXIMUS View Post
    I think I could run more boost but it's a real hand full right now

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    Urban Cougar Trapper Gopher711's Avatar
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    Always ran valve (3/8") off pump and inlet hose wide open with 2 overboard dumps out of block on old motor ...temps were about 120-140* on AvGas
    i hear what you are saying about restriction , I might be able to thread water fitting going into motor and try different size "pills " choking back water

    only thing I'm worried about is picking up a stick ,small rock , wad of grass or water Lilly and plugging line up and overheating
    http://oathkeepers.org
    Due to the fact that GOD limited mans intelligence , it's unfortunate he did not also limit his Stupidity !!!

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    LP-25.com Infomaniac's Avatar
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    Restricting at the pump opens up the opportunity for air pockets in the engine restricting the outlet exposes the engine to pump pressure.

    You can run a regulator bypass type IMO for the pressure and a sea strainer if you are worried about debris.

    I generally run smaller discharge hoses to slow the flow down and install a bypass regulator for pressure
    If For Some Reason I Do Something Worthy Of Recognition. God Provided The Ability And Deserves The Credit.


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    Urban Cougar Trapper Gopher711's Avatar
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    That's a good idea Ron ! Thanks !

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    Senior Member jetjunky's Avatar
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    Default pres reg. valve

    I've run this pressure regulating valve on the inlet line with very good results. easy to adjust as necessary with set screw to hold setting. I could quickly see the results of pressure setting changes in both my t-stat location, mech. temp guage and my dash mounted mech. oil temp. guage. (send'g unit in oil pan) I ran ball valves on inlet and exit line to control flow. With a ball valve you can quickly see at a glance what your degree of valve restriction is unlike a gate valve. Restricted exit line flow to insure complete block/head filling. I ran -10 or -12 inlet and -8 or exit line if I recall correctly, never any issues. I ran a 540" n/a, pump gas deal. I flogged it daily for extended periods of time for my entertainment purposes. I liked to end my day with hot lap sessions, simulating circle racing, for at least half hour sessions.
    I've also read alot of positive comments about a banderlog valve but obviously have no experience with them. I hope this is of some help.
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    Senior Member H20MOFO's Avatar
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    Quote Originally Posted by Gopher711 View Post
    Mark , Sullens said to run motor at a minimum of 160-170* for proper fuel vaporization and burn , just seeing if there was a better way to regulate water temps than choking back supply from pump ....and I have no way to run a thermostat which would be ideal
    Do you have an oil temp gauge? On an average day my oil temp will be 200 ish....and unless I am at a looooong idle....my water temp gauge wont move off its lowest setting. If I had 10 bucks for every time this came up.......I could almost afford my ex wife
    Another Hot Boat refugee

  13. #11
    Urban Cougar Trapper Gopher711's Avatar
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    No oil temp gauge , manual gauges in ea head .

    You can see water temp gauges in heads ,
    http://oathkeepers.org
    Due to the fact that GOD limited mans intelligence , it's unfortunate he did not also limit his Stupidity !!!

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