1998 LeSabre Vacuum Sucking OilFiller

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Oct 11, 2024 | 12:38 AM

#11

OldsManiac1990

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Quote:

Originally Posted by CathedralCub

Ah, I see.

This is a normal noise inside the induction tract. They all do it. At least every naturally aspirated Series 2 and 3 I've come across. I think it is the sound of the injectors spraying just by the behavior, but I don't know what it is for sure. I don't see it as a problem . . . except for how the air boxes are so restrictive to keep the noise under control.

True, gutting my l67 airbox did make idle louder, I did it to get louder supercharger noise, but it , in my opinion, made a slightly noticeable difference in that off-the-line throttle response, which may not mean much performance wise but it does say something about how restrictive they can be

Oct 11, 2024 | 12:58 AM

#12

CathedralCub

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I took out the funnel on mine and then added some openings on the outside. It felt a little better, but not so much that I didn't think it was in my head. So I grabbed another air box (unmodified) at the junkyard and put it on, then it felt anemic. Back to my modified one and it felt good again. So I think it does do some good on mine, especially at higher RPMs, I just didn't change it right after driving it to be able to really notice the difference. Nice to be able to hear it a little more as well.

I figure I've added at least 200HP to it by doing that.

Just kidding.

I may have added a few horsepower when it'* wound out, but mostly it just feels more willing about everything.