bigger intake on 1500 novi
Thread Starter
TECH Apprentice
Joined: Nov 2016
Posts: 371
Likes: 18
From: switzerland
bigger intake on 1500 novi i put on a bigger intake and registered no increase in boost (205 kpa). however the mixture leaned out by 2%. i have 4 logs back to back, 2 with small intake and 2 with big intake. iat, timing, fp the same.
so question: can i be seeing an increase in power at the same boost level?
so question: can i be seeing an increase in power at the same boost level?
Yeah I mean it sounds like you got a 2% power increase. However idk what kind of boost you are running but on 14 psi that 2% would be .28psi of increase which you probably wouldn't notice on your gauge. Sounds like your intake wasn't really holding you back
Weather conditions could account for such a minor difference. Also, If your sig is correct, you have elevation changes that could account for such a small discrepancy. Any definitive answer would require more data under controlled conditions.
edit-- Unless your logs were on a dyno or in the same direction on the same road within minutes of each other.
edit-- Unless your logs were on a dyno or in the same direction on the same road within minutes of each other.
The reality was your air filter wasn't a huge restriction on your set up. Which is a good thing. Forced induction does a pretty solid job of pulling enough air on its own. The best way to tell if your filter set up is a restriction is just run it down the road for a single pull with nothing on front of it and see what results that brings. Without more info on your set up though it's hard for me to say what would be an area where you could really increase power for cubic dollar.
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Joined: Dec 2005
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From: Scottsdale, AZ
My belief is you picked up power without boost because you made it easier for the centri to be driven by the motor. Boost shouldn't change much post blower because it's only going to spin at X speed based on the pulley and RPM. Since the centri takes power to run and pulling air through a smaller intake is more difficult, it pulled the same amount of air easier than it did previously.
My belief is you picked up power without boost because you made it easier for the centri to be driven by the motor. Boost shouldn't change much post blower because it's only going to spin at X speed based on the pulley and RPM. Since the centri takes power to run and pulling air through a smaller intake is more difficult, it pulled the same amount of air easier than it did previously.
My old g35 was full bolt ons with a procharger making 430rwhp. Nothing crazy but not bad for a 3.5L. Anyways I had a nice cold air intake a built with a buddy and ran it like that for a while. One day on the dyno when I upped the boost we did it with the intake on and off. Allowing time for it to cool back down between runs. It made 2 extra horsepower with the filter off and that's the way we tried it first. Nothing noticeable because the filter wasn't really a restriction. Just a little real life example for you
Thread Starter
TECH Apprentice
Joined: Nov 2016
Posts: 371
Likes: 18
From: switzerland
the engine is making around 700 bhp and the original ecs intake looks restrictive. but its not. so the restriction is in the blower itself, right? but what about all the guys putting velocity stacks on their blower?
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Launching!
Joined: Dec 2012
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those kind of intakes have been proven time and time again to add 20-60hp or more on centri supercharged setups. 2% seems low to me but very easy to make more power with same boost, shoot you could open up the exhaust and make more power with less boost.
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Verdad Gallardo TECH Enthusiast
Joined: Dec 2005
Posts: 590
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From: Scottsdale, AZ
Yes but that theory only holds true as long as the old air intake was actually a restriction. Which is why I said if you take the air filter set up completely off you can tell how much of a restriction the intake system is. If there isn't a drastic change (which I wouldn't expect there to be) then you know that at this point it isn't the problem. If the first intake was big enough to not be a problem then by adding one that flowed more wouldn't change anything.
My old g35 was full bolt ons with a procharger making 430rwhp. Nothing crazy but not bad for a 3.5L. Anyways I had a nice cold air intake a built with a buddy and ran it like that for a while. One day on the dyno when I upped the boost we did it with the intake on and off. Allowing time for it to cool back down between runs. It made 2 extra horsepower with the filter off and that's the way we tried it first. Nothing noticeable because the filter wasn't really a restriction. Just a little real life example for you
My old g35 was full bolt ons with a procharger making 430rwhp. Nothing crazy but not bad for a 3.5L. Anyways I had a nice cold air intake a built with a buddy and ran it like that for a while. One day on the dyno when I upped the boost we did it with the intake on and off. Allowing time for it to cool back down between runs. It made 2 extra horsepower with the filter off and that's the way we tried it first. Nothing noticeable because the filter wasn't really a restriction. Just a little real life example for you