nitrous ? injectors

legalize420

Active Member

May 21, 2005

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South Florida

Aug 30, 2006

#1

• Aug 30, 2006

• #1

i have a nos dry kit with the jets for 80 and 150 shot. the 80 are in there now. what would it take to run the 150 jets? i have stock injectors, a walbro 255 pump, and adjustable fpr. i heard about putting a shim in the nitrous regulator and it ups the fuel pressure but should i wait until i get new injectors? i remember seeing a post with the range of hp ratings for the injectors but cant seem to find it.

 

AznStanger3v

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Aug 11, 2003

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Northern VA

Aug 30, 2006

#2

• Aug 30, 2006

• #2

new injectors also mean new maf... although, it is cheaper than a new motor.

id wait for new injectors. id also have a tune for the spray. itll def keep the motor alive a lot longer

 

legalize420

Active Member

May 21, 2005

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South Florida

Aug 31, 2006

#3

• Aug 31, 2006

• #3

its probobly about 450 for new injectors and maf. im sure i could rebuild the motor for about that or less. that and i have another 302 sitting on a stand in my garage but thats besides the point. i really dont need a tune. i backed the timing down and went to colder plugs. eventually i will get some kind of filp switch to run a seperate tune. still have not decided what tuning device or chip im going to get when i do get one.

 

Guero

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Oct 11, 2005

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Aug 31, 2006

#4

• Aug 31, 2006

• #4

back your timing around 6 degrees, and bump your FP up 2 lbs. Thats what i did for the 125 shot.

 

legalize420

Active Member

May 21, 2005

1,541

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South Florida

Aug 31, 2006

#5

• Aug 31, 2006

• #5

Guero said:

back your timing around 6 degrees, and bump your FP up 2 lbs. Thats what i did for the 125 shot.

Click to expand...

was that with stock injectors? does zex rate there numbers at the wheels? i recall reading that they do and nos rates it at the flywheel. if thats the case they should be a similar shot. does the zex kit have the two seperate jets. one for the nozzle and one for the regulator? if so what size are they? thanks

 

Guero

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Oct 11, 2005

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Aug 31, 2006

#6

• Aug 31, 2006

• #6

Zex measures at the flywheel. Not sure bout bout NOS. I cant recall the jets, but yes theres 2. And yes it was on stock injectors and stock fuel pump. But i ended up bowing a head gasket. But i also didn't have a FPR.