im looking at getting a speed density tune .. the tuner around my area has reallly good results with this kind of tuning.. but....

the question is .. i have 2 or the 3 stages of nitrous as dry shots . how would this work ? or would it not work ? .

i have a nitro outlet plate w 150 and 2 other 75shot stages before the maf ...

any ways to get this work or is it a must to run a maf on dry hits ?or will the density tune realize there is more nitrous and add fuel ?

might be a noob but i need help before i finish up the car . thanks

oh and is tsp 100mm MAf available yet ? i went on the site but couldnt find it . thanks again

 

Why would you need a 100mm MAF if you are Speed density?

I guess it would work with some sort of timing retard box but I'm not really sure.

 

No... No Maf = No Dry Shot

 

The Only Way I Could See Gettinng Arround This May Be Efi Live Or Some Sort Of Relayed Device To Trick The Pcm Into Adding Fuel When You Activate The N2o

 

EFI Live can do it via COS 5 (Custom Operating System 5). It uses a pin (which is not normally used) on the PCM that when grounded, activates alternate VE multiplier/Timing tables.

 

Multi stage dry and SD tune, nice. What you could do, like Beer has suggested is to run the EFI Live COS 5. The trick though is to get multi stages to fuel and time correctly. So, if you run a RPM based WS type controller that activates multi stages at RPM points, like the new NOS controller that does up to 4-stages, and have your stages come on per gaining RPM it could work. In the EFI Live look up table you can increase your fuel at each RPM activation point per stage, same with timing pull. Pretty simple really, and you can even throw in a gear lock out set up and so much more. It gets a little complicated, but if we think about it, usually there is a way to do dry anyway we like these days. Let us know how it goes. There are other ways to do this also, but I am brain dead right now.
Robert

Edit: I'll bet Beer has a screen capture that would explain what we are talking about much better?

 

EFI Live COS 5 all the way

 

I use a dry, SD tune with HP tuners but I use 2 diferent tunes.
I ran a 10.03@ 138.94 last night on a 175 shot with my 17" street tires

 

ill talk to the tunner to see what i can do .. i was only asking about the 100mm maf just in case i chose to stay with the maf

what whould be good rpm seperation betwen the 3 kits ?

 

A lot of factors can effect the choice of rpm activation per stage. Mine was 3500, 4700 and 5x00 or somewhere in those ranges. depends a lot on how big each stage is and if the lower end and/or traction can take a lot down low.
Robert