NITROUS OXIDE ( nos / n2o ) advice forum

Hello all, I've read the WON bible and scoured the board for jet ratios but thought I'd ask on here for clarification as well.

I run 43.5 base fuel pressure which is pretty common for most efi systems, if I use a 100 nitrous jet what fuel jet will get me in the ballpark for testing?.

As it stands there is a 100 nitrous jet and 50 fuel jet in there.

I run 11.5:1 afr under load/boost so assume the wet nitrous will be transparent to my wideband when jetted correctly?.

Still need a bottle heater, do you have any part exchange/ used kits in Trev?.

That jet size would be correct when you have a heater fitted. Until then it will run rich, so you either need to buy a heater ASAP or reduce the fuel jet but as the weather is very changeable and so therefore will be the pressure, it's impossibly to fit a jet that will be correct more often than not, so the heater is the best solution.

Cheers Trev, won't do any tuning until the heaters fitted. Changing jet sizes due to the weather is not too appealing! .

That was the only way I had for a number of years, then I graduated to an adjustable fuel regulator, followed by nitrogen boosting.