Less boost after header/dp
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Less boost after header/dp
hey all, i'm still new to how boost and stuff works. I think I have an issue but i honestly don't know. recently I installed a vibrant header/dp. Prior to that I had on Injen CAI and GMPP Catback. Before installing the header/dp I was getting about 12-13 lbs WOT and now after installing the header/dp I am only getting 10 WOT. I understand how superchargers work with backpressure and all but according to the place where i bought the header/dp from it said i should have gained boost not lost it. my theory is that since its larger piping its less backpressure thus causing less boost, but i have no idea. thats why im asking. how much boost should i have WOT with a header/dp, gmpp catback and an injen cai? do I just need a tune, or what lol. oh, and I checked for leaks already and couldnt find any or hear any. thanks in advance.
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I did a zzp header and 3" catless dp and gmpp exhaust I see about the
same it's because of less back pressure in the motor because theirs less restriction in the exhaust system you won't see more boost unless you do a smaller pulley
same it's because of less back pressure in the motor because theirs less restriction in the exhaust system you won't see more boost unless you do a smaller pulley
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so then its not necessarily a bad thing that i lost boost? I guess the website i bought it from threw me off saying i should have gained boost which to me says you're gaining power. thanks for the quick reply.
#7
The the best thing to look at to check how your engine's flowing is the MAF readings. That probably went up a little bit (whereas boost won't for the above stated reasons).
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