Installing performance injectors
May 11, 2012, 06:47 AM
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Installing performance injectors
I have evo4 with evo8 engine and evo8 turbo.
I am planning to improve it's performance with keeping lag as smaller as possible so I will be looking for installing evo9 turbo.
I am willing to get around 400hp.
Currently engine is being rebuilt - forged pistons and so on.
I hope get car till summer. However turbo upgrade is scheduled after summer.
So the questions is - does it make sense to change injectors/fuel rail/pressure regulator now or when I install the newer turbo and we try to get those 400hp?
I am advised to buy Injector dynamics 1000cc injectors. I counted that for 400hp it's ok to have 700cc injectors. If I buy 1000cc will this affect engine in any way? The point is that 1000cc Injector Dynamics is the popular model.
I am planning to improve it's performance with keeping lag as smaller as possible so I will be looking for installing evo9 turbo.
I am willing to get around 400hp.
Currently engine is being rebuilt - forged pistons and so on.
I hope get car till summer. However turbo upgrade is scheduled after summer.
So the questions is - does it make sense to change injectors/fuel rail/pressure regulator now or when I install the newer turbo and we try to get those 400hp?
I am advised to buy Injector dynamics 1000cc injectors. I counted that for 400hp it's ok to have 700cc injectors. If I buy 1000cc will this affect engine in any way? The point is that 1000cc Injector Dynamics is the popular model.
May 11, 2012, 07:21 AM
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I would go ahead and upgrade the injectors to like 1000-1200cc's. That way you dont have to do it in the future if you plan to make more power. I think the stock injectors would work fine for around 400 hp. A bigger injector can make the car harder to idle but ive seen fic 2250's idle just fine.
May 14, 2012, 06:31 PM
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I would go ahead and upgrade the injectors to like 1000-1200cc's. That way you dont have to do it in the future if you plan to make more power. I think the stock injectors would work fine for around 400 hp. A bigger injector can make the car harder to idle but ive seen fic 2250's idle just fine.
I broke 400hp on a Evo9 turbo and my injectors were right about 105% idc so you'll need to get bigger injectors to accomplish your goal.
May 15, 2012, 10:41 AM
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We have very small tracks with extremely sharp corners and higher lag is unacceptable disadvantage.
Thank you for your idea about calibration. Most likely I will leave this upgrade to autumn when there will be done custom manifold, evo9 turbo and evo8 ecu.
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May 15, 2012, 10:43 AM
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I would go ahead and upgrade the injectors to like 1000-1200cc's. That way you dont have to do it in the future if you plan to make more power. I think the stock injectors would work fine for around 400 hp. A bigger injector can make the car harder to idle but ive seen fic 2250's idle just fine.
May 20, 2012, 05:17 PM
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May 20, 2012, 05:19 PM
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I don't have such plans, however guy who does ecu tuning says I should. I want to keep car street legal. I adviced to buy ID of 1000, so it isn't a question - I am definitely buying those.
May 20, 2012, 05:41 PM
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I cannot wait my evo back to the road