Jet sizes and tuning
#1
Jet sizes and tuning
Nitrous works recommended the use of .052 n20 and .033 fuel jets to achieve a 125 hp shot. However, plugging in the n20 jet and bottle/fuel pressure into an online jet calculator results in a recommendation for a .029 fuel jet. Does the nitrous works recommendation sound really conservative to you and would I stand to gain from leaning it out somewhat? I also installed a racetronix pump so would this fatten up the a/f from the stock pump?
Mike.
Mike.
#2
Re: Jet sizes and tuning
Nitrous Supply recommended the same jetting combo for their 125 shot. I tuned the N2O on the dyno and with recommended jetting it was REALLY rich. we kept putting smaller fuel jets to get the AFR right. I think they use conservative jetting to prevent someone from killing the motor if their fuel system isn't up to par. funny thing is the HP didn't really increase when we got the AFR's on track, but torque just kept on climbing.
Greg
Greg
#3
Re: Jet sizes and tuning
What fuel jet did you end up using???
Originally Posted by Legion
Nitrous Supply recommended the same jetting combo for their 125 shot. I tuned the N2O on the dyno and with recommended jetting it was REALLY rich. we kept putting smaller fuel jets to get the AFR right. I think they use conservative jetting to prevent someone from killing the motor if their fuel system isn't up to par. funny thing is the HP didn't really increase when we got the AFR's on track, but torque just kept on climbing.
Greg
Greg
#6
Re: Jet sizes and tuning
how much timing, if any, did you take out? What A/F ratio were you at w/ the 150 shot?
Originally Posted by MetallicTrans96
I use nitrous works and i am using 150 wet kit. I followed the specs and dynoed and it was fine..it was alittle rich but i guess thats fine so i dont have detonation
Thread
Thread Starter
Forum
Replies
Last Post
dbusch22
Forced Induction
6
10-31-2016 11:09 AM