Been researching this and getting conflicting info. Here's what I settled on, what do you guys think? My info is in sig ,run straight meth, dual walbros,-8 line, boost ref regulator and 60lb injectors.

I want to install a dry shot (50 or so) before the MAF so the computer will see colder temps and enrich. Window switch set at 3000 rpms & wot.

My AFR now when the meth comes on is 11, will it be too rich after the install? I'd like to be safe but pig rich will not make power.

 

Your MAF is not limited out already?

 

I don't think so. Don't want SD.

 

I think for sure your maf would be maxed out. Hell mine is by alot.. Convert or put a wet shot on if your going to do it...

 

Wet plate kit is your ticket... Adjust your WOT nitrous AFR with jetting after your AFR with meth only is nailed down... Maybe even throw some 116oct in a stand alone if you really wanted a nice setup and the extra insurance... But either way you've got the the fuel system to handle it right off your fuel rail... Just monitor your FP as well until you know 100% you're safe...

 

Well, this is what I'm talking about. I apreciate the input but the recomendations are all over the place. Chris at Nitrous Outlet says the dry shot in front of the MAF will be fine, the tech at Zex says "dry" in front of TB with some fuel but not wet.
I def don't want to tune for the meth or nitrous in case something happens and they don't work.
On that MAF vs SD controversy some very knowledgeable people say keep the MAF, so if SD works for you then good but I'll hang in there.

 

In a lot of ways, this is where your own personal thoughts and research come into play, do what's logical to you...

Logical to me means getting rid of the MAF, and tuning it with the wideband, its got its place but when you're talking about a setup like yours it becomes more of a hindrance than help.... Its not really even doing much if its maxed anyway.... And again, this is jusy my $.02

 

I run meth and a wet kit thru a plate. I am also running the maf. Its much easier to tune a wet kit, if your running lean - up you jet size tell you get to where you want it.

 

My set-up runs a MAF and when it is maxed out at about 5000 rpm my PE tuning keeps my AFR's where they need to be up to my shift points.

If your's is tuned this way then spraying a dry shot will not work- it will go lean because the MAF can no longer add fuel because it is maxed out already.No way to add fuel for the dry shot.My bet is the guys selling the nitrous kits are not taking into account that the MAF is maxed out.

here are some options
1.run a wet nitrous kit
2.run a tune that doesn't use the meth all the time,then when you do spray a dry nitrous shot use the meth also as your fuel source

 

That is my thought #2 My tune right now does not consider the meth, when the dry shot comes on the meth comes on at basically the same time for additional cooling plus a fuel source. I know guys out there are doing the same just want to hear how it's working and what other options there is.