Secondaries adjustment.

[intimdatr]

So i dont have access to a dyno at the moment but hopefully will soon.
But what im wondering is it possible to know where to adjust the secondaries based upon mods. Im not talking perfect, but closer to what would be an improvement? I plan on getting my LPM tunned with the birthday money I got .

The list of mods are:
BBB's
PNP intake (secondaries only)
80mm MAF (mark viii)
High Flow Y-pipe
Stock Cat back but with VERY open mufflers.
This we will be put on later but im going to go head and tune for it and UDP.

 

[SHOspazz92]

You can get it done with the lpm. Not really worth it tho.

 

[firebat45]

If you want it perfect, do a dyno run with them wired open, then wired shut. Note at which RPM the open graph makes more power than the closed one, and set the switchover at that RPM.

If you want it "close enough", then leave it stock.

 

[intimdatr]

You can get it done with the lpm. Not really worth it tho.

I know you can, i was just wondering if it was possible to adjust them based sorta off a list of mods to get it closer without a dyno sheet. But if their isnt i'll juts leave them stock and mot worry about it till i hit the dyno.

 

[jayro]

I know you can, i was just wondering if it was possible to adjust them based sorta off a list of mods to get it closer without a dyno sheet. But if their isnt i'll juts leave them stock and mot worry about it till i hit the dyno.

Each engine is diffrent so it is hard to say. My old 3.0 had similiar mods and it benefited by opening them a little later. It was illustrated on my dyno graph by a drop in torque when they opened. I think it had to do with the reduction of intake air speed. My recommendation would be to keep it stock until you go to the dyno. The idea of running it with them wired open vs closed is an interesting one.....I my have to try that on mine sometime this spring.