a4ls2goat

sup guys...
currently i switched to a .063 N jet.. fuel jet is a .026 and the AFs stay around low11s threw the pull...
this is on the stock fuel pump...
how much higher can i up the shot wit the stock pump since the fuel jet is not that big??
ive ran about 10 nitrous bottles and everything has been good..

Chris@NitroDaves

It's hard to say what you can go up too....

Where did you come up with that jetting and what system are you running ( single nozzle etc..)??? Zex's jetting doesn't have anything close to that for the 125hp shot jetting on their...Just going off what you have in your sig.

a4ls2goat

well, its a zex bottle, with NOS silinoids and nos single fogger..
currently i upped it to a 150 shot which is the .063 N

Camarokid08731

my cars on a 175 hit 100 first stage 75 second stage and im on a stock fuel pump and my car is still good knock on wood. it currently has 126 nitrous passes on it and around 200 motor runs so in my opinoun as long as the tunes right and it doesnt lean shoot it to the moon

a4ls2goat

i heard for the gto, as long as you keep the fuel jet under .034 you should be good.. is this correct??

Camarokid08731

as long as theres enough fuel preasure it doesnt really matter i put a mechanical gauge in my car to keep an eye on it if u lose preasure and it starts to lean out time for a bigger pump rule of thumb from what i have gathered is anything bigger then a 150 hit needs a bigger pump but like i said i got a 175 and my air fuel and fuel preasure seem to be in spec for what im doing

Datankid069

iTrader: (15)

Hate to go off topic did you say your spraying a 150 shot on a stock tune? How's that even possible without pulling timing and all the good stuff?

87silverbullet

iTrader: (11)

It can be sprayed on a stock tune as long as he is pulling timing somehow. I sprayed a 150 on a stock tune with the timing twister.

To the OP I see you have tr6 plugs in your car. Please pull them out because they are a projected tip plug and get you some br7ef plugs.

a4ls2goat

yea, ill be picking up new plugs today
currently the gap on th tr6 is at .035 and its running perfect..should i keep it the same for the br7ef??

Chris@NitroDaves

You can keep the same gap for the 7's

Chris@NitroDaves

The fuel jet has nothing to do with you needing to upgrade the pump. The horsepower the car makes will determine if you need to upgrade the fuel pump. The factory fuel pumps should support around the 450-480 rwhp mark. IF you are over that or close to it i'd suggest upgrading the fuel pump.

3fingas

iTrader: (16)

+1

and if your not reading plugs you are sprayin blind and dont know...

How rich or lean it is.
How hot cylinder temps are (Timing).
If it's detonating.

Never trust a WB with spray, unless your ready to build another motor.

87silverbullet

iTrader: (11)

That line is sig worthy right there!