Just thinking about adding nitrous to my 383 supercharged combo. I have a 383 with afr 210 race 224 236 solid roller sq with aftercooler that is now pulleyed for about 11 pounds ( 7.2" 3.33").

Car made 510 490 on splitfire dyno (import shop up here with new dyno) with old combo I made 50 horse less on Splitfires dyno than ARE's dyno with same combo.

What are limits before I have to run exotic fuel I don't mind using 104 unleaded but leaded fuels are not an option and with 10 pounds boost and nitrous how much timing should I pull.

It seems the bar moves higher each year.

John Carpico

 

a 50 shot of nitrous would give you a nice gain and cool down the charge quite a bit, i would also take out some timing as well,

 

Thanks for reply, I am hoping some of the guys running both power adders can give me some insight. Do you use same jetting as NA car how much timing should you pull.

I know from experience tryng somthing and talking about it are two different things

John Carpico