geo110282

I have been thinking about supercharging my n/a Rx7. The simple part is putting the kit together. The hard part is will I need a turbo computer? Can I just change the map sensor and it will adapt? Or will I need to go with a piggy back or a stand alone?

Are there any kits that will bring a supercharger system and a fuel kit? If not what is the best way to work this out.

crispeed

Depending on horsepower goals a 'FMU' type fuel pressure regulator will take care of the fuel side of the equation. Also a fuel pump upgarde will help.

geo110282

I guess you are saying to keep the same injector pulse rate but increase the fuel pressure to the amount of boost. I'm looking to do it for show so I want to stay under 5-6 lbs w/ intercooler. Cool man thanks. About how much more fuel pressure should I be looking at and don't you think it will affect the idle?

mwatson184

FMU's raise fuel pressure at a higher rate than 1:1. The are normally adjustable from 4:1 to 10:1 (fuel psi:boost psi). At idle, and any other vacuum condition, fuel pressure will be the same as if before.

Don't forget you will need to figure out a way to pull back some of the timing. 1degree per # of boost is a common safe amount.

-Marques

Tofuball

I would not do this on the stock ECU.

crispeed

Thst stock timing should be good for 5psi. A lot of the bolt on turbo kits form the 80's used stock timing at those boost levels.

Tofuball

I still wouldnt do it :p