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[Turbo&Auto]

If you're using a dry shot on a returnless fuel system you have issues to begin with......Dry kits boost fuel pressure as fuel compensation. Our FPR is in the tank so you cant just jump the vacuum port on it and increase fuel pressure.

Besides a wet kit is a HELL of a lot safer.....

[Motorhead6T5]

Originally Posted by Turbo&Auto

If you're using a dry shot on a returnless fuel system you have issues to begin with......Dry kits boost fuel pressure as fuel compensation. Our FPR is in the tank so you cant just jump the vacuum port on it and increase fuel pressure.

Besides a wet kit is a HELL of a lot safer.....

I was kinda generalising as I have no experience on a yaris using nitrous,you could be right. I know some people on the scion forums have run dry kits up to a 35 shot with no problems,they have returnless like us. To a point the maf will adjust,this is why on a dry kit you mount before the maf,and a wet tap after the maf. The oxygen sensors will adjust also,this is why a dry kit won't kit as hard,its the delay of the computer adding the extra fuel as oposed to just strait injecting it right with the nitrous on a wet kit. Some people will even tell you a dry kit is a waste of nitrous.

I will rephrase my previous statement,if the nitrous kit is tuned correctly(via a/f on a dyno or wideband) then dry is considered safer at low amounts of nitrous injection. It may not be safer however on this piticular car/engine.

Reasons a wet kit is not as safe,puddling of fuel via a leaky selonoid,and the intake manifold was not designed to flow fuel,which can lead to fuel starvation of certain cylinders when the nitrous is engaged.