Flowforce 640s
11-17-2022, 11:03 AM
#1
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Flowforce 640s
So after what everyone said on here on my last post, I decided to get the flowforce 640s. I plan on pulling the engine soon to do the turbo kit. Should I try to tune the new injectors soon before pulling the engine and doing the turbo, or just try to run as little boost as possible? I believe with the setup I'm putting in, I can get 3 psi at the max. I just want to avoid the chance of detonation, as I know it's higher when boosted.
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11-17-2022, 03:29 PM
#3
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Doing them before the turbo means you can get idle and off boost response correct before adding another variable in.
however you will need to redo most of the fuel map anyway when the turbo goes on, so you are kind of doubling your work if doing it before.
having said that, if it was me, I’d put the injectors in before and tune if so I know it’s right before I add the turbo and then tweak the map to suit.
this is assuming you are doing the tuning yourself? If paying to get it done then just do it once after turbo, save paying twice..
fwiw, I fitted and tuned my 640s before I fitted my rotrex. Just adjusted the injector size and deadtimes and the ecu did the rest so an injector change can be quite simple dependent on which ecu you have and what method of tuning.
however you will need to redo most of the fuel map anyway when the turbo goes on, so you are kind of doubling your work if doing it before.
having said that, if it was me, I’d put the injectors in before and tune if so I know it’s right before I add the turbo and then tweak the map to suit.
this is assuming you are doing the tuning yourself? If paying to get it done then just do it once after turbo, save paying twice..
fwiw, I fitted and tuned my 640s before I fitted my rotrex. Just adjusted the injector size and deadtimes and the ecu did the rest so an injector change can be quite simple dependent on which ecu you have and what method of tuning.
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12-03-2022, 03:36 AM
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Doing them before the turbo means you can get idle and off boost response correct before adding another variable in.
however you will need to redo most of the fuel map anyway when the turbo goes on, so you are kind of doubling your work if doing it before.
having said that, if it was me, I’d put the injectors in before and tune if so I know it’s right before I add the turbo and then tweak the map to suit.
this is assuming you are doing the tuning yourself? If paying to get it done then just do it once after turbo, save paying twice..
fwiw, I fitted and tuned my 640s before I fitted my rotrex. Just adjusted the injector size and deadtimes and the ecu did the rest so an injector change can be quite simple dependent on which ecu you have and what method of tuning.
however you will need to redo most of the fuel map anyway when the turbo goes on, so you are kind of doubling your work if doing it before.
having said that, if it was me, I’d put the injectors in before and tune if so I know it’s right before I add the turbo and then tweak the map to suit.
this is assuming you are doing the tuning yourself? If paying to get it done then just do it once after turbo, save paying twice..
fwiw, I fitted and tuned my 640s before I fitted my rotrex. Just adjusted the injector size and deadtimes and the ecu did the rest so an injector change can be quite simple dependent on which ecu you have and what method of tuning.
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