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Anyone Running 42.5 lb injectors?

D

DrSnazzy

New member
hey guys , im going to be picking up a set of 42.5 lb injectors from a guy that i bought my gtp from wen. Im kind of new to modding fuel injected motors (yea ima noob) , what kind of changes should i expect as far as performance, mpg, ect after the car is tuned and all? My stock injectors are currently "maxxed out"

My mods: Smaller Pully For SC
Ceramic coated headers,
no cat downpipe,
3in back to dual flowmaster,
tuned ,
Cold air intake.


:D
 


how much smaller pulley do you have? Seems like you don't have enough mods to max the injectors out.
 
I have to call the guy and get all the mods he got done, I just got the car like a month ago. Im just going by what he told me as of now, and im probably forgetting some mods . Ill have him send me a list
 


Whats you injector duty cycle at WOT???

That will kinda tell you if you're maxing your stock injectors or not. And yes, you need a tuner to figure this out.

I bet you are only using ~60% because you arent cammed or even intercooled.
 
Poil336 said:
geeze, if your injectors are maxed on those mods, i'd like to see your air/fuel ratio
Click to expand...
^this... Probably why he's only getting 13.8 mpg in the other thread. I've only lost about 2 mpg from a bad O2 sensor when the code shows. But will see once the pulley size and mods are listed. If it doesn't say the pulley size, just measure the diameter. Is he selling you the 42.5lb injectors, or is he giving them to you since you bought the car from him?
 
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RegalGS98s said:
^this... Probably why he's only getting 13.8 mpg in the other thread. I've only lost about 2 mpg from a bad O2 sensor when the code shows. But will see once the pulley size and mods are listed. If it doesn't say the pulley size, just measure the diameter. Is he selling you the 42.5lb injectors, or is he giving them to you since you bought the car from him?
Click to expand...

He is giving me those injectors becuase i got the car from him
 
You don't need those until you drop pulley size below 3.4". 3.2" maybe? Anyway, you'd need at least rockers and an intercooler to go that low. Or a cam. So this is a non-issue. What you need is a good tune.
 
Right now its 3.3, And i also have a 3.2 but obviously not on the car. @SloNA06 my car is intercooled, the guy dropped those injectors off and the other pully today for me, He is going to email me a Detailed list of all the mods done and i will throw that up on here. The car was tuned by zzp i figured that out today. He also said when they went to the no cat system they dropped one o2 sensor, i have to look and see what one was removed. How could i get this code to go away if the o2 sensor is not there?
 
RegalGS98s said:
^this... Probably why he's only getting 13.8 mpg in the other thread. I've only lost about 2 mpg from a bad O2 sensor when the code shows. But will see once the pulley size and mods are listed. If it doesn't say the pulley size, just measure the diameter. Is he selling you the 42.5lb injectors, or is he giving them to you since you bought the car from him?
Click to expand...

right now its a 3.3
 


On my previous GTP I didn't max my injectors untill i hit a 3.0 pulley and that was with 1.9's

Have you scanned your car? We need to know what your IDC is.

So you know for a fact the injectors are maxed or are you going off what the previous owner told you?
 
txslow6 said:
On my previous GTP I didn't max my injectors untill i hit a 3.0 pulley and that was with 1.9's

Have you scanned your car? We need to know what your IDC is.

So you know for a fact the injectors are maxed or are you going off what the previous owner told you?
Click to expand...


zzp told him they were maxed out , just going by what he said. I dont even know what IDC is lol
 
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