Injector Size And Question
11-02-2003, 01:44 AM
#1
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Join Date: Dec 2002
Location: Wayne, NJ
Posts: 4,837
ok so i've continually said im going with 720/1600(or 1680)cc injectors.
however im not sure if i really need to go that big.
My mods are in my sig (make sure to see the coming soon cause i have a lot shipping right now), and i'm looking to run about 10-11psi.
I'm looking to get an injector that will securely be able to handle that yet not be gas mileage crushing (altho someone told me that after it's properly tuned with a new ems even 720/1680cc injectors will be able to give decent gas mileage (im getting 12-14mpg right now and consider that decent)
So what size do you think i should go for, and also 1600and 1680cc injectors can fit the stock secondary rail with slight modification right?
Now for my question:
I'm going to be getting the injectors probably in 2 weeks, but i don't have a standalone yet, is it ok to put the injectors in anyway and just run like absurdly rich until i get the haltech, or should i wait for the haltech before i put in the injectors?
thanks in advance,
kevin.
however im not sure if i really need to go that big.
My mods are in my sig (make sure to see the coming soon cause i have a lot shipping right now), and i'm looking to run about 10-11psi.
I'm looking to get an injector that will securely be able to handle that yet not be gas mileage crushing (altho someone told me that after it's properly tuned with a new ems even 720/1680cc injectors will be able to give decent gas mileage (im getting 12-14mpg right now and consider that decent)
So what size do you think i should go for, and also 1600and 1680cc injectors can fit the stock secondary rail with slight modification right?
Now for my question:
I'm going to be getting the injectors probably in 2 weeks, but i don't have a standalone yet, is it ok to put the injectors in anyway and just run like absurdly rich until i get the haltech, or should i wait for the haltech before i put in the injectors?
thanks in advance,
kevin.
11-02-2003, 02:46 AM
#2
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Join Date: Nov 2001
Location: LA, USA
Posts: 1,622
The engine will flood itself as soon the secondaries kick in. There is no way it will run right. You need a haltech or another aftermarket ecu to be able to control them.
Even with a SAFC at -50% that's 800cc each injector for the secondaries and then dont' forget the primaries. Engine will flood when they kick in.
If you put in the 1600 as secondaries that is.
Even with a SAFC at -50% that's 800cc each injector for the secondaries and then dont' forget the primaries. Engine will flood when they kick in.
If you put in the 1600 as secondaries that is.
11-02-2003, 02:48 AM
#3
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Join Date: Dec 2002
Location: Wayne, NJ
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Originally Posted by turborotor' date='Nov 2 2003, 03:46 AM
The engine will flood itself as soon the secondaries kick in. There is no way it will run right. You need a haltech or another aftermarket ecu to be able to control them.
Even with a SAFC at -50% that's 800cc each injector for the secondaries and then dont' forget the primaries. Engine will flood when they kick in.
Even with a SAFC at -50% that's 800cc each injector for the secondaries and then dont' forget the primaries. Engine will flood when they kick in.
now what injectors do you think i should go for?
kevin.
11-02-2003, 02:50 AM
#4
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Location: LA, USA
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For you hybrid, I would get 720 all around and bump up the fuel pressure a notch and please put the walbro in and do the pump rewire.
Do you have a SAFC?
If you don't you can get by with just 550/720s as you as you have the fuel pump. and keep the boost under 10.
Do you have a SAFC?
If you don't you can get by with just 550/720s as you as you have the fuel pump. and keep the boost under 10.
11-02-2003, 02:54 AM
#5
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Join Date: Dec 2002
Location: Wayne, NJ
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Originally Posted by turborotor' date='Nov 2 2003, 03:50 AM
For you hybrid, I would get 720 all around and bump up the fuel pressure a notch and please put the walbro in and do the pump rewire.
Do you have a SAFC?
If you don't you can get by with just 550/720s as you as you have the fuel pump. and keep the boost under 10.
Do you have a SAFC?
If you don't you can get by with just 550/720s as you as you have the fuel pump. and keep the boost under 10.
i dont have an safc but but im not sure i trust the stock 550s are you sure that setup would be good?
i was hoping to run 10psi
kevin.
11-02-2003, 03:00 AM
#7
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Join Date: Jul 2003
Location: MN
Posts: 392
you would be fine running 720's all around at 10psi. Im going to be running a similar setup except im just keeping stock primaries and upping the secondaries to 850s and running 10psi. As long as you get the walbro and rewire it and have something to controle the fuel you will be fine.
11-02-2003, 12:20 PM
#10
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Join Date: Nov 2002
Location: Cincinnati, Oh hi hoe!
Posts: 2,286
Originally Posted by teknics' date='Nov 2 2003, 05:08 AM
yea im going to test the setup tho, if its still getting full power no need to rewire it, right?
kevin.
kevin.
i really dont feel like doing a rebuild?