1g speed density conversion ?

[Jowens1185]

Im currently doing the speed density conversion on a 91 gsx. My question is where do I run the vaccum line the goes from maf to what I think is a factory boost controller as well as the vent line from the valve cover? The intake tube and filter im installing has no ports on it.
Also the vaccum line that goes on the map sensor whats a good location to attach that?
Thank you in advanced and Any help is appreciated.

 

[Vladimir]

Some guys tap the intake to run MAP, some use the brake booster hose with an adapter, some use ports from BOV or FPS....I personally think taping the back of the intake looks and works the best

I don't know if your car is completely stock or not. You also need an IAT for speed density to work right. That vent hose on the valve cover can be taken of. And you can use a little breather cone filter if you like or a catch can.

You can also tap into your new intake and put a little NPT fitting to run your factory boost controller.....many use a T fitting to run their MBC from the BOV intake port ..

Just depends how you want to do it and what mods you already have. Here is a factory vacuum diagram

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