Boost questions

[Sevans603]

Hey all I’m new in here but read a lot figured I would ask as much as I can
Here is my set up
2015 s550
P1sc stage 2
Dws 1000
Jms1000
Catless 3in to corsa
Was 4.75 now switched to 4.50
Colder plugs
Lund tune
6speed
Rxt
My questions are
Do u loose boost when cats are removed
And will 12 1/2 pounds of boost be bad on 93
I was told that the 4.50 will give me 12 1/2 pnds max I just don’t wanna hurt anything lol

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[3beeps]

Yes, I believe your boost pressure will go down, horsepower will go up.

Is Lund okay tuning your car on that pulley on 93? Their answer is the only one that matters. I believe it'll be just fine, though. I was around that boost level on my D1SC with the 4.88 pulley.

 

[Sevans603]

Lund said not to go over 12 on pump I was just wondering if that 1/2 pnd boost is the killer lol will it hurt ? According to procharger they said not an issue for all I no that pully my not make 12 with cats out

 

[Dominant1]

You lose a pound but you gain hp i gained 27 whp by removing the cats. Im right at 12lbs at 750 whp on a gen2 D1x car..i use 93 octane and a bottle of octane booster in every tankful.

 

[Sevans603]

What kinda octane booster ? And does that effect ur tune at all ?

 

[Dominant1]

What kinda octane booster ? And does that effect ur tune at all ?

Lucas on the street, optanium on the track..you can get 3 points from lucas and a 12 pack will cost you $75. Optanium by vp fuels can get you 7 points its $22 for a 32 oz can.

 

[Sevans603]

Well I guess I will add some booster in it thank u all I will be running logs come spring time and see what car is doin and let Lund make adjustments. Car was on a road course now street and drag strip lol

 

[Jackson1320]

I run 15+ boost on my 15 gt on 91 so I have water/meth kit installed.

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