ITB booties?
Moderator
Joined: Jun 2003
Posts: 7,041
Likes: 356
From: Arizona
Originally Posted by Feezy' timestamp='1422296181' post='23481953
No, no. What he is saying is that the strainers, panty hose, and other associated filters that sit right at the mouth of the trumpet will disrupt flow. He is totally right with that.
He's saying that you want a filter that has some distance between itself and the mouth of the trumpet. The domed sausage filter set up is a way to do that, so are the filters that I have. The issue with the sausage filter set up is that depending on the length of the trumpet and how the backing plate mounts to your ITB set up... you might not have enough room under the hood for everything to clear and for you to have an adequate amount of space between the mouth of the trumpet and the filter.
He's saying that you want a filter that has some distance between itself and the mouth of the trumpet. The domed sausage filter set up is a way to do that, so are the filters that I have. The issue with the sausage filter set up is that depending on the length of the trumpet and how the backing plate mounts to your ITB set up... you might not have enough room under the hood for everything to clear and for you to have an adequate amount of space between the mouth of the trumpet and the filter.
Cheers.
What ITB kit are you running OP? Depending on the kit the TODA surge box will most likely not fit. It really is only designed to work with their ITB kit as many of the other ITB set ups run trumpets that are way to big to fit inside of the TODA box.
Give me some more information on the specifics of your kit and I can help guide you. I went through all of this myself about a year ago.
Registered User
Joined: May 2014
Posts: 630
Likes: 2
From: Miami
Originally Posted by 06Estukay
Read this current thread :
https://www.s2ki.com/s2000/topic/107...-build-thread/
https://www.s2ki.com/s2000/topic/107...-build-thread/
One of the few threads that debunked the filter over itb and HP loss/or no loss.
Joined: Apr 2009
Posts: 1,513
Likes: 119
Yep, that's what I was saying Feezy, thanks for clearing that up.
As for proof, well, I've done a fair bit of testing on ITB setups, as almost every car we built went out on a set, and much like Feezy has done with his, I've tried socks and strainers and similar on a few dyno back to backs, just to show people the consequences - although it's easy to figure out why they have an effect if you think about the inlet dynamics - and anything in the vicinity of the bellmouth has a serious effect, I've seen strainers loose 30bhp on an engine (~300bhp, so 10% gone for the sake of looking shiny...) over sticking an airbox over the top with cheap off-the-shelf paper filter in, and the problem with tights and such is that whilst they may *look* like they're free flowing, in actuality the air velocity over them is much higher than over a remote filter setup, even with a 'restrictive' paper filter, simply because the latter offers an order of magnitude bigger area to flow through, before you even get into the effects of resonance over the trumpet face.
As for proof, well, I've done a fair bit of testing on ITB setups, as almost every car we built went out on a set, and much like Feezy has done with his, I've tried socks and strainers and similar on a few dyno back to backs, just to show people the consequences - although it's easy to figure out why they have an effect if you think about the inlet dynamics - and anything in the vicinity of the bellmouth has a serious effect, I've seen strainers loose 30bhp on an engine (~300bhp, so 10% gone for the sake of looking shiny...) over sticking an airbox over the top with cheap off-the-shelf paper filter in, and the problem with tights and such is that whilst they may *look* like they're free flowing, in actuality the air velocity over them is much higher than over a remote filter setup, even with a 'restrictive' paper filter, simply because the latter offers an order of magnitude bigger area to flow through, before you even get into the effects of resonance over the trumpet face.
Thread Starter
Registered User
Joined: Jul 2014
Posts: 18
Likes: 0
From: Las Vegas
Originally Posted by Aurex' timestamp='1422312235' post='23482377
[quote name='Feezy' timestamp='1422296181' post='23481953']
No, no. What he is saying is that the strainers, panty hose, and other associated filters that sit right at the mouth of the trumpet will disrupt flow. He is totally right with that.
He's saying that you want a filter that has some distance between itself and the mouth of the trumpet. The domed sausage filter set up is a way to do that, so are the filters that I have. The issue with the sausage filter set up is that depending on the length of the trumpet and how the backing plate mounts to your ITB set up... you might not have enough room under the hood for everything to clear and for you to have an adequate amount of space between the mouth of the trumpet and the filter.
No, no. What he is saying is that the strainers, panty hose, and other associated filters that sit right at the mouth of the trumpet will disrupt flow. He is totally right with that.
He's saying that you want a filter that has some distance between itself and the mouth of the trumpet. The domed sausage filter set up is a way to do that, so are the filters that I have. The issue with the sausage filter set up is that depending on the length of the trumpet and how the backing plate mounts to your ITB set up... you might not have enough room under the hood for everything to clear and for you to have an adequate amount of space between the mouth of the trumpet and the filter.
Cheers.
What ITB kit are you running OP? Depending on the kit the TODA surge box will most likely not fit. It really is only designed to work with their ITB kit as many of the other ITB set ups run trumpets that are way to big to fit inside of the TODA box.
Give me some more information on the specifics of your kit and I can help guide you. I went through all of this myself about a year ago.
[/quote]
Cool thanks
Well here's the engine break down.
Dyno: 230whp/185tq on E85
Darton sleeved bored over 89mm
CP forge piston 12.5:1
blue print, micro polish crank, balanced bottom end
Stock head
Posh 440 Injectors
TWM 52mm ITB
Megan Header
J's Racing 70rr
AEM EMS V1
Moderator
Joined: Jun 2003
Posts: 7,041
Likes: 356
From: Arizona
It's information like this that is vital when talking about whether or not filters lose horsepower on an ITB set up.
Joined: Aug 2011
Posts: 4,220
Likes: 81
From: Florida
UNI green foam filter media, its just a 12x16" sheet of foam
no springs the foam was wrapped around the trumpets with the ends tucked over and under creating about a 2" gap
this stuff
http://www.amazon.com/Uni-Filter-65-...dp/B000ONZT5E/
no springs the foam was wrapped around the trumpets with the ends tucked over and under creating about a 2" gap
this stuff
http://www.amazon.com/Uni-Filter-65-...dp/B000ONZT5E/
Moderator
Joined: Jun 2003
Posts: 7,041
Likes: 356
From: Arizona
I purchased mine directly from Lance Hayward. If you do go through him please tell him I sent you his way.
http://haywardperformance.com/ - They are $120 + shipping.
http://haywardperformance.com/ - They are $120 + shipping.
Thread
Thread Starter
Forum
Replies
Last Post