Thread: Can I remove the throttle body screen??

way to open another can of worms, haha. I have been guilty of it a couple of times though.

This debate could rage on and on, as it is a huge debate among gm ls based/lq truck owners (aka silverado 4.8/5.3/6.0) to gain a minute performance for no money whatsoever. Jist of it is that there is proof that it gains performance and there is proof that it loses performance, so most people just leave it on for the fact that it doesn't hurt anything as far as hp (maybe 1-2 at most).

I would leave it on for the simple fact that most people agree that it doesn't hurt anything.

In case you want even more info it is discussed almost daily on ls1tech.com in the 5.3 truck section and fullsizechevy.com also pretty regular and I know they have dyno sheets to support both ends of the "argument".

GM didn't put that screen there to stop rodents from crawling in to your engine or to restrict airflow to limit your HP.

There is a book called Engine Management Advanced Tuning by Greg Banish. Greg is a GM OEM Calibration Engineer. His book is a great read. Referencing this subject, checkout pages 25 though 28 on the MAF sensor. He talks about the removal of the laminar screens.

Originally Posted by IndeedSS

There is a book called Engine Management Advanced Tuning by Greg Banish. Greg is a GM OEM Calibration Engineer. His book is a great read. Referencing this subject, checkout pages 25 though 28 on the MAF sensor. He talks about the removal of the laminar screens.

Oh man. Don't post info about tempting technical books. My wallet doesn't like that.

Originally Posted by Going Too Phast

Oh man. Don't post info about tempting technical books. My wallet doesn't like that.

It is a very good book. IIRC, it wasn't very expensive through Amazon. Print is large and there is a lot of pictures. The text will be basic for more experienced people, as for me I still find myself going back to look things over.

I would love to go take one of his 2 day tuning seminars.

The book:

Amazon.com: Greg Banish: Books

Originally Posted by IndeedSS

It is a very good book. IIRC, it wasn't very expensive through Amazon. Print is large and there is a lot of pictures. The text will be basic for more experienced people, as for me I still find myself going back to look things over.

I would love to go take one of his 2 day tuning seminars.

The book:

Amazon.com: Greg Banish: Books

Thanks, I'd like to get a little more informed on the subject. I'll look it up on amazon

Originally Posted by IndeedSS

It is a very good book. IIRC, it wasn't very expensive through Amazon. Print is large and there is a lot of pictures. The text will be basic for more experienced people, as for me I still find myself going back to look things over.

I would love to go take one of his 2 day tuning seminars.

The book:

Amazon.com: Greg Banish: Books

I just ordered a copy of the book, but for what it is worth, I have my screen in. I took it out for a while maybe a year after getting the car. I cant recall any noticeable performance differences but it always seemed that the idle was a bit rougher and responsiveness may have been off.

May be my imagination but it prompted me to put it back in a couple weeks later.

Originally Posted by IndeedSS

There is a book called Engine Management Advanced Tuning by Greg Banish. Greg is a GM OEM Calibration Engineer. His book is a great read. Referencing this subject, checkout pages 25 though 28 on the MAF sensor. He talks about the removal of the laminar screens.

So for those of us that are not going to by the book, what does it say about it?

Originally Posted by Zef_66

So for those of us that are not going to by the book, what does it say about it?

Basically, that the airflow is turbulent and does not flow the same across the MAF. The screen smooths or averages out the flow across the MAF. The most gain seen was 4HP and that was on a V8. If the airflow across the MAF is not accurate your tune will not be correct. My poor excuse for a reader digest version of 3 pages of good information on the operation of the MAF.

I remember seeing you in a lot of threads about tuning pertaining to the PT. I figured you more than anyone else would find this book interesting.

Originally Posted by IndeedSS

Basically, that the airflow is turbulent and does not flow the same across the MAF. The screen smooths or averages out the flow across the MAF. The most gain seen was 4HP and that was on a V8. If the airflow across the MAF is not accurate your tune will not be correct. My poor excuse for a reader digest version of 3 pages of good information on the operation of the MAF.

I remember seeing you in a lot of threads about tuning pertaining to the PT. I figured you more than anyone else would find this book interesting.

I am sure I would find it interesting, but I don't have the time to sit down and read anymore. Unless I could somehow find it on tape, then I could listen to it in the car while I am driving to and from work!

But yeah, I am sure it would be a great read, and great info, I just don't have the time to sit down and do it. Too many other projects to work on.