I have a guy that wants to tune his direct port setup with me but im not sure if i can do a street/shot tune considering the iat would never see a temp drop right? Is there anyway to do this or do i just do a super safe tune for only the nitrous and what numbers should i aim for ie timing/af ratio.

Thanks
Bill

 

If your tuning a DP setup then you should not have to mess with your afr tune for N/A.The only thing i would do is pull some timing out say 4 deg and put in some tr6 plugs and some good gas 104 should do.You should be good for a 150 shot with 4 deg out you could take out more two more if you really want to play it safe.

 

i was just thinking maybe there was a way i could have the computer automatically pull timing but theres really no way to do that unless its a dry system and have it cross the iat i would assume so when it sees an abnormally low temp you could just pull timing eh well I'll just tune it conservatively.

 

I think were talking two diffrent dp setups.Im talking every port is setup with a nozzle (like mine and i run a low pressure pump).You must be talking one nozzle after the maf.Ether way you could buy a timing tuner i think there couple hunderd bucks and wire right in.

 

nope were on the right track...hes got an nxl direct port setup...i just was hoping there was a way through hptuners to back out timing when the nitrous hits or is activated.

 

You just will have to pull a little timing out and just have to deal with some power loss .I don't run the bottle on the street so i just go back to my n/a tune.I couldnt even think of running the bottle on the street that would be nuts.