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Discussion in 'Engine/Tuning' started by jemorgan, Jan 5, 2010.

  1. jemorgan

    jemorgan Member Established Member

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    Has anyone put meth injection on there 03/04 Cobra ? If so how well did it work for you , I just recived my stage 2 maf kit with safety injection , my current setup is build motor , KB 2.2 21#, and all the other usual bolt ons ..
     
  2. jemorgan

    jemorgan Member Established Member

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    thanks , there seems to be some good and some bad that people say about using meth on positive displacement blowers , well I have already got the kit and I need it to run 20 plus #'s on a DD , thanks for all the info .....
     
  3. venom1997

    venom1997 Screwed by the Twins Established Member

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    i have the same one on my 97
     
  4. novi2000

    novi2000 Member Established Member

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    I have a compound boost setup running dual nozzle 100% meth and my data logs show my IAT2 temps go from 120 to right at 80 once the meth injection comes on plus you get the added octane from running the alcohol.
     
  5. jemorgan

    jemorgan Member Established Member

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    40 degree drop in IAT , thats nice
     
  6. novi2000

    novi2000 Member Established Member

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    That is on the dyno.
     
  7. SlowSVT

    SlowSVT Well-Known Member Established Member

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    Can your motor tolerate running max boost without it?
     
  8. novi2000

    novi2000 Member Established Member

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    With the right fuel yes, I run it more for the octane bump than the cooling aspect. I have tried the snow performance kit took it off and now run the Alky Control Kit with 100 Methanol.
     
  9. SlowSVT

    SlowSVT Well-Known Member Established Member

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    That is a "given". What happens with the wrong fuel which is what you are likely running?

    You know where I'm going with this.............
     
  10. novi2000

    novi2000 Member Established Member

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    This is where the tune is important, the way mine is setup is to monitor air temps and if the meth stops flowing the ECU will save the motor. My kit includes a test button which I use to test the pump. Yea the pump can stop working, but I stand more of a chance of one of my tripple walbro pumps failing which btw has happened. I have a buddy with the same kit that has made 900 on 93 and a Dual nozzle kit 100% meth with twin billet wheel turbos.
     
  11. SlowSVT

    SlowSVT Well-Known Member Established Member

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    There are both advantages and disadvantages running water/meth injection. From what I have seen people have had mixed results running this system. I don't think a PD blower gets as good results compared to a turbo or centriffy which is why they aren't used very widely in these cars. Personally I would tune the car to make power without it and back it off to add a margin of safety then use the injection system as an added insurance policy to protect the engine. That should make for a bulletproof installation.

    Tune the car to max the power output and the life of your engine is dependent on whether the injection system is working correctly. I am willing to give up a few hp (like this car doesn't have enough to begin with) to prevent wasting an engine. Things always fail at the worst possible time :nonono:

    Jim Bell chimed in on this topic a few years ago and was very adimit about not using a water/meth injection system and the risk they can carry in these cars.

    Are you running a return or a returnless fuel system? The pulse modulated pressure regulation is hard on the pumps and won't be as reliable as a return system running 100% duty cycle.
     
  12. novi2000

    novi2000 Member Established Member

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    I am running a Fast XFI with return style.
     
  13. SlowSVT

    SlowSVT Well-Known Member Established Member

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    Holy tamoli, between engine management and your fuel system there is $5000 between them :eek:

    Does that puppy have any kind of knock sensor to protect the engine? That would be the tits.
     
  14. novi2000

    novi2000 Member Established Member

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    No knock sensor, but the Fast has some other tunable fail safes for Meth Injection.
     

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