What size injectors
01-05-2010, 01:18 PM
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What size injectors 1999 LS-1 out of Camaro: Polished Crank, 11.25:1ish compression, small chamber heads, 550 lift Cam, Howell harness and computer, nothin special tune, turbo 400 tranny
this motor is in my rock crawling/ desert racing buggy
would i see any difference in more that stock injectors??
newbie to the lsx tuning
this motor is in my rock crawling/ desert racing buggy
would i see any difference in more that stock injectors??
newbie to the lsx tuning
01-05-2010, 06:13 PM
#2
01-05-2010, 06:28 PM
#3
Stock Injectors are for years 1999-2000: 26.4 lb/hr.
What you have to see is what your mods are and what duty cycle are your injectors going ot be running. You want to make sure that you never pick an injector that is going to be running more than 80% of its duty cycle. That's about it for injectors.
You never want an injector to stay wide open (Static) or at 100% of duty cycle while your engine is running. Meaning the injector has lost the ability to manage fuel and it is dumping fuel into the cylinder.
Also remember that when choosing an injector you are choosing an injector for fwhp not rwhp.
Hope that helps.
What you have to see is what your mods are and what duty cycle are your injectors going ot be running. You want to make sure that you never pick an injector that is going to be running more than 80% of its duty cycle. That's about it for injectors.
You never want an injector to stay wide open (Static) or at 100% of duty cycle while your engine is running. Meaning the injector has lost the ability to manage fuel and it is dumping fuel into the cylinder.
Also remember that when choosing an injector you are choosing an injector for fwhp not rwhp.
Hope that helps.
01-05-2010, 06:36 PM
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01-05-2010, 06:42 PM
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make sure you have a new fuel pump, and grab some 36# injectors.
you may not need the fuel pump, however, it will ensure you are flowing enough to keep up with the injectors & hold your fuel pressure
you may not need the fuel pump, however, it will ensure you are flowing enough to keep up with the injectors & hold your fuel pressure
01-05-2010, 09:09 PM
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thanks for the help, where can i find the ford 30lbers
part number?
and of course i need to re-tune for the injectors if they are more than a couple lb difference?
wil ls2 injectors fit on ls1, i believe they are 30lbs or more
part number?
and of course i need to re-tune for the injectors if they are more than a couple lb difference?
wil ls2 injectors fit on ls1, i believe they are 30lbs or more
Last edited by gobigorgohome; 01-05-2010 at 09:17 PM.
01-05-2010, 09:33 PM
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01-07-2010, 05:51 AM
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do not get 28# injectors, I wouldn't get 30# injectors even.... just a waste of money IMO. At least go big enough so that if you do further mods (go ahead...say you won't...i would bet you will end up changing something)
grab some 36# injectors FLOW MATCHED & a 255 racetronix kit w/wiring. You cannot go wrong this way.
grab some 36# injectors FLOW MATCHED & a 255 racetronix kit w/wiring. You cannot go wrong this way.
01-10-2010, 12:55 PM
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like this http://cgi.ebay.com/ebaymotors/musta...Q5fAccessories
or does it need to be a specific year
or does it need to be a specific year
01-11-2010, 01:03 AM
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So how bad is it that my injectors duty cycle is hitting 116%. My tunnuer freak out when he saw that. He said bigger inj would fix that. What u guys thinkabout that.my mods are in my signature plus I plan on using 100 shot nitrous. And also my intake is only getting 85%. He said it should be at 100% to get a LS6 intake that its better than the bbk intake I got on. Guys help me out
01-11-2010, 10:26 AM
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So how bad is it that my injectors duty cycle is hitting 116%. My tunnuer freak out when he saw that. He said bigger inj would fix that. What u guys thinkabout that.my mods are in my signature plus I plan on using 100 shot nitrous. And also my intake is only getting 85%. He said it should be at 100% to get a LS6 intake that its better than the bbk intake I got on. Guys help me out
01-11-2010, 01:02 PM
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like this http://cgi.ebay.com/ebaymotors/musta...Q5fAccessories
or does it need to be a specific year
or does it need to be a specific year