When do you need fuel upgrades with nitrous

[06iornhorse]

I just ordered my hsw kit and want to run a 100 shot on my car. My car is a full bolt on car with cams minus tb. I will be running ht0 and have a dyno tune but am worried I might have to upgrade the fuel system before I can use the kit. I plan to upgrade eventually but times are a little tight right now.

 

[jroc07gt]

i think 125 shot is the limit on stock fuel system but dont quote me on that.

i wish i had your 60' times! you should be damn close to pulling the wheels huh?

 

[06iornhorse]

It pulls the wheels a little but does not carry them. I also leave alittle harder than most. 6500 rpms

 

[dysan]

The best way to know is you have to datalog your pump & injector duty cycles. If I remember correctly, my tuner said you really don't want to keep it consistently over 80% or so. I could be wrong with that % number and hopefully some other people will chime in. You just want to make sure there's some headroom.

 

[jroc07gt]

yea 80% is about the hardest you will want to work your injectors

 

[06iornhorse]

Ok so when I get it installed and have it tuned I should check the duty cycle and make sure it stays below 80% on the pumps thanks

 

[jroc07gt]

no 80% on the injectors duty cycle

 

[usafimj]

Would swapping over to 39# injectors better than the stockers. Should help get the fuel in better