Dyno'd Blown 557 on e-85
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Dyno'd Blown 557 on e-85

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    Default Dyno'd Blown 557 on e-85

    Got the motor back from the dyno and had some good results. Cleaned up the fuel curve a ton & learned a little bit in the mean time. Took an intake manifold temperature reading with and with out the intercooler. At an idle which usually runs pretty hot on a blown deal do to lack of air & fuel the intake temp climed up to 180. When the intercooler was used it dropped it down to 120. Water temp was probably in the mid 70's. At 7000 rpm the intake temp dropped to 78 degrees. Pretty cool stuff. The tune up window was huge. I made 15 pill changes from rich to lean & it acted like gasoline in the 1-5 range. Blower temps after several pulls were cold to the touch. To run the same tune up on gas I would have to be burning C-16 at over $14 bucks a gallon. This stuff is somewhere around $3.25 a gallon and the tune up is using about 30% more. However with my new tune up it should help the milage a ton. It was pretty rich in the cruising range.

    Also tested the E85 from the local pump & it was over 90%. When I tested the stuff in the boat that is almost 18 mo old it tested 80%. The holley blue fuel pump fired right up after sitting for the same amount of time. I run a touch of marvel in the mix which keeps the hoses, o rings etc from drying out. No gumming or corrosion was found in anything.

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    Thats all good to hear!

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    Quote Originally Posted by MAXIMUS View Post
    Got the motor back from the dyno and had some good results. Cleaned up the fuel curve a ton & learned a little bit in the mean time. Took an intake manifold temperature reading with and with out the intercooler. At an idle which usually runs pretty hot on a blown deal do to lack of air & fuel the intake temp climed up to 180. When the intercooler was used it dropped it down to 120. Water temp was probably in the mid 70's. At 7000 rpm the intake temp dropped to 78 degrees. Pretty cool stuff. The tune up window was huge. I made 15 pill changes from rich to lean & it acted like gasoline in the 1-5 range. Blower temps after several pulls were cold to the touch. To run the same tune up on gas I would have to be burning C-16 at over $14 bucks a gallon. This stuff is somewhere around $3.25 a gallon and the tune up is using about 30% more. However with my new tune up it should help the milage a ton. It was pretty rich in the cruising range.

    Also tested the E85 from the local pump & it was over 90%. When I tested the stuff in the boat that is almost 18 mo old it tested 80%. The holley blue fuel pump fired right up after sitting for the same amount of time. I run a touch of marvel in the mix which keeps the hoses, o rings etc from drying out. No gumming or corrosion was found in anything.
    Those Holley pumps are pretty robust. The Marvel will always help keep em alive and it usually lubes the impellers or rotors in the pumps not allowing them to lock up or seize! Cool

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    Senior Member badbug3's Avatar
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    so, how much power and torque did it make?

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    Quote Originally Posted by MAXIMUS View Post
    . Took an intake manifold temperature reading with and with out the intercooler. At an idle which usually runs pretty hot on a blown deal do to lack of air & fuel the intake temp climed up to 180. When the intercooler was used it dropped it down to 120. Water temp was probably in the mid 70's. At 7000 rpm the intake temp dropped to 78 degrees. .
    Please clarify,
    At 7000 rpm with the intercooler you got 78 * IAT ? That's a great number for IAT.
    How much boost was that pumping out ?

    There's not a lot of good info available on alcohol fuel cooling.
    With an oxygenated fuel like Ethanol I don't know that air density (intercooled) is as much a factor as it is with gas.

    I know my setup is making more HP without the intercooler on E85 but I have no accurate way to measure IAT as the injectors are downstream from the IAT sensor. I've been using the trial and error method. So far so good.

    Thanks for sharing that info.

    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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    Quote Originally Posted by Unchained View Post
    Please clarify,
    At 7000 rpm with the intercooler you got 78 * IAT ? That's a great number for IAT.
    How much boost was that pumping out ?

    There's not a lot of good info available on alcohol fuel cooling.
    With an oxygenated fuel like Ethanol I don't know that air density (intercooled) is as much a factor as it is with gas.

    I know my setup is making more HP without the intercooler on E85 but I have no accurate way to measure IAT as the injectors are downstream from the IAT sensor. I've been using the trial and error method. So far so good.

    Thanks for sharing that info.
    Not sure what you mean by IAT??? The temp was taken inside the intake plenum below the intercooler. At 7000 rpm it was right at 15lbs of boost. I thought there might not be a reason for an intercooler with this stuff but that is not the case. Especially for a driver.

    The motor made good power but we detuned it a touch. Put it in a safer zone with some more cushion being its not a racer. Torq was 1050 ft-lb from 3600 to 5100 with a high of 1068 at 5100. Hp at 5000 was 1014 and at 6900 was 1218. The main objective was to really clean the motor up & get the cylinders all in sync which we achieved. Now its in the boat & I have added an O2 sensor to my racepak reading in Lamda. This will avoid any further issues.

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    IAT, Intake air temp

    TPS, throttle position switch

    IAC, Idle air control

    CTS, coolant temp sensor

    MAP, Manifold Absolute Pressure

    ECU, engine control unit also EMS, engine management system

    H/E, hall effect sensor

    IPU, inductive pickup unit

    Twin Turbo 1800 HP V-Drive lake boat

    http://s621.photobucket.com/albums/t...t=MAH05771.mp4

    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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    Interesting information - Keep it coming.

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    That's cool...pardon the pun.
    What injection? What's the static comnpression on the engine, and of course, what heads? Good power.
    If God is your co-pilot, change seats!
    Acts 2:38, the perfect answer to the perfect question.

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    Quote Originally Posted by steelcomp View Post
    That's cool...pardon the pun.
    What injection? What's the static comnpression on the engine, and of course, what heads? Good power.
    Not sure maybe 9.5 to 10.1, my engine builder/nazi won't tell me. Don't ask... its complicated... The heads are Dart 360's that were worked over by Bob Morgan. 1471 mooneyham, with an enderle bird catcher & a K valve. Ended up not needing the high speed lean out. Instead I switched from an 80-a pump to a waterman style twin gear model. Dropped the hat nozzels down 9 thousandths & dropped the main pill a touch. Increased the fuel psi from 30 psi total to 80 psi. Made a big change in the fuel curve. Then Jim at Enderle made me another spool for the barrel valve based on the information we gave him. With all these changes the fuel curve was steady from 3000 to wot.


    The air temp in the dyno room was a touch over 80 degrees. The relative altitude during testing was 3000 feet. The numbers mentioned were uncorrected. The pulls started at 3000 and the motor excellerated up through the rpm to a limit at 7 k. No flashing numbers or any smoke and mirrors. Carson is pretty serious on the dyno & is not interested in a bunch of b.s. Another cool feature was I ran my IMCO Power flow exhaust from the boat on the dyno. I am sure they are a bit restrictive for what the motor is trying to do but its all I have and good enough.

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    Quote Originally Posted by MAXIMUS View Post
    Not sure maybe 9.5 to 10.1, my engine builder/nazi won't tell me. Don't ask... its complicated....
    Is that what your calling now? There is alot he keeps from you. And probably with good reason



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    If your intercooler was only taking out 60 degrees IAT at idle I would say it was taking out less at WOT when the blower was making boost.

    To get the IAT down to 78 degrees at 15 # boost is factor of the fuel cooling more than the intercooler.

    Twin Turbo 1800 HP V-Drive lake boat

    http://s621.photobucket.com/albums/t...t=MAH05771.mp4

    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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    Quote Originally Posted by Unchained View Post
    If your intercooler was only taking out 60 degrees IAT at idle I would say it was taking out less at WOT when the blower was making boost.

    To get the IAT down to 78 degrees at 15 # boost is factor of the fuel cooling more than the intercooler.
    I would agree. However like I stated in the cruising range I think the cooler is a benefit.

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