5.7 hemi

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    Author Topic: 5.7 hemi  (Read 3762 times)

    Offline heminut

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    Re: 5.7 hemi
    « Reply #15 on: June 03, 2006 - 12:08:00 AM »
    Even with a carb you will still need a computer to control the spark, the new hemi doesn't have a distributor!
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    1970 5.7 Hemi Cuda


    Offline ESGEE

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    Re: 5.7 hemi
    « Reply #16 on: June 04, 2006 - 07:19:55 AM »
    I know(cant get everything :bigsmile:) but i still rather have a regular carb insted of those injection(both look better and have the same effect and you can get rid of a whole lot of stuff under the hood).... :working:
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    70 Challenger RT/SE(Looking for 383 Magnum N0B196875)
    70 Challenger RT/SE(Looking for 383 Magnum N0B115166)
    70 Challenger SE(RT/SE clone)
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    Offline GreenFish

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    Re: 5.7 hemi
    « Reply #17 on: June 30, 2006 - 11:30:13 AM »
    FAST makes a electronic replacement for a distributor, the call it eDist that should work
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    70 cuda, 440, KB pistons, 10.5:1 compression, edlebrock heads,RacerBrown cam, 5-Speed Tremec, Megasquirt EFI

    Offline wart1de

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    Re: 5.7 hemi
    « Reply #18 on: July 05, 2006 - 11:54:33 PM »
    Quote from: ESGEE on June 04, 2006 - 07:19:55 AM
    I know(cant get everything :bigsmile:) but i still rather have a regular carb insted of those injection(both look better and have the same effect and you can get rid of a whole lot of stuff under the hood).... :working:

    A carb won't perform anywhere as good as injection
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    1973 Plymouth 'Cuda
    1980 Ford Falcon XD ESP
    2012 Jeep Wrangler Rubicon

    Offline ESGEE

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    Re: 5.7 hemi
    « Reply #19 on: July 06, 2006 - 05:29:30 AM »
    I did read somewhere that the carb one and the injection one had the same Hp when tested, sure i can think that the carb one is more thirsty....
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    70 Challenger RT/SE(Looking for 383 Magnum N0B196875)
    70 Challenger RT/SE(Looking for 383 Magnum N0B115166)
    70 Challenger SE(RT/SE clone)
    69 Charger RT/SE 4speed Trackpac
    70 Charger 500

    Offline heminut

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    Re: 5.7 hemi
    « Reply #20 on: July 06, 2006 - 12:30:12 PM »
    Quote from: wart1de on July 05, 2006 - 11:54:33 PM
    A carb won't perform anywhere as good as injection

    I don't agree with that, you can get just as good performance with a carb as with FI, the carb is just not as EFFICIENT as FI. I remember some time back one of the car magazines did a dyno test on an engine using both FI and a carb. When tuned to the best numbers there was virtually no difference in the horsepower or torque ratings! Now if I could remember what magazine it was! Methinks I read too durn many magazines. :clueless:
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    1970 5.7 Hemi Cuda

    Offline 57hemicuda

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    • 5.7 hemi
    Re: 5.7 hemi
    « Reply #21 on: July 06, 2006 - 04:01:41 PM »
    I think the carb engines when tuned properly probably make more HP,but the road manners and milage are no where near as good as EFI
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    Offline ESGEE

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    Re: 5.7 hemi
    « Reply #22 on: July 07, 2006 - 01:02:02 PM »
    That what i thought 2 :burnout:
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    70 Challenger RT/SE(Looking for 383 Magnum N0B196875)
    70 Challenger RT/SE(Looking for 383 Magnum N0B115166)
    70 Challenger SE(RT/SE clone)
    69 Charger RT/SE 4speed Trackpac
    70 Charger 500

    Offline GreenFish

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    Re: 5.7 hemi
    « Reply #23 on: July 13, 2006 - 10:24:21 AM »
    Quote from: 392heminut on July 06, 2006 - 12:30:12 PM
    I don't agree with that, you can get just as good performance with a carb as with FI, the carb is just not as EFFICIENT as FI. I remember some time back one of the car magazines did a dyno test on an engine using both FI and a carb. When tuned to the best numbers there was virtually no difference in the horsepower or torque ratings! Now if I could remember what magazine it was! Methinks I read too durn many magazines. :clueless:

    You are probably right about a properly tuned carb, however, it is much easier to tune an EFI car. A carb you have to take it apart put it back together multiple times to get it right. EFI just turn on the laptop and peck away till its right, If your elevation or weather conditions change you can adjust accordingly
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    70 cuda, 440, KB pistons, 10.5:1 compression, edlebrock heads,RacerBrown cam, 5-Speed Tremec, Megasquirt EFI

    Offline ESGEE

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    Re: 5.7 hemi
    « Reply #24 on: July 13, 2006 - 04:41:21 PM »
    But then you have to have a laptop with right programs(wich dont are for free) and know how to handle it. Personally i have worked with diffrent carbs since the teens soo that feel much more natrual for me(and looks better) :bigsmile:
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    70 Challenger RT/SE(Looking for 383 Magnum N0B196875)
    70 Challenger RT/SE(Looking for 383 Magnum N0B115166)
    70 Challenger SE(RT/SE clone)
    69 Charger RT/SE 4speed Trackpac
    70 Charger 500

    Offline GreenFish

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    Re: 5.7 hemi
    « Reply #25 on: July 14, 2006 - 07:13:39 AM »
    I am a bit of a computer geek as well, I actually have 2 laptops.. :bigsmile:  If you really needed one you can get used ones dirt cheap that are capable of running any ECU software for a few hundred bucks.
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    70 cuda, 440, KB pistons, 10.5:1 compression, edlebrock heads,RacerBrown cam, 5-Speed Tremec, Megasquirt EFI

    Offline wart1de

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    Re: 5.7 hemi
    « Reply #26 on: July 18, 2006 - 08:55:50 PM »
    Quote from: 392heminut on July 06, 2006 - 12:30:12 PM
    I don't agree with that, you can get just as good performance with a carb as with FI, the carb is just not as EFFICIENT as FI. I remember some time back one of the car magazines did a dyno test on an engine using both FI and a carb. When tuned to the best numbers there was virtually no difference in the horsepower or torque ratings! Now if I could remember what magazine it was! Methinks I read too durn many magazines. :clueless:

    FI provides more accurate fuel metering/delivery as well as more precise ignition timing so although I have no figures to prove it, I would expect power gains to go along with that.

    It also takes alot more time/skill to get a carb tuned to max effiency and I bet that the majority of mechanics the average guy takes his car to for a tune up comes no where near it. Not only that, when you do find your engines sweet spot with FI, it doesn't lose it.
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    1973 Plymouth 'Cuda
    1980 Ford Falcon XD ESP
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    Offline ESGEE

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    Re: 5.7 hemi
    « Reply #27 on: July 23, 2006 - 12:42:15 PM »
    A friend found a carbintake and Carb kit(with wiring to) for a 5.7L, great i thought untill i heard the price $3995 :eek4: Sure that price will go down, but with those kind of money whos gonna buy it....
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    70 Challenger RT/SE(Looking for 383 Magnum N0B196875)
    70 Challenger RT/SE(Looking for 383 Magnum N0B115166)
    70 Challenger SE(RT/SE clone)
    69 Charger RT/SE 4speed Trackpac
    70 Charger 500
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