anyone have any clues about this?

pic borrowed from a&c forum......don't ask why i was in there..cause i don't know

 

Hey please link me to that post, thanks!

 

https://honda-tech.com/zerothread?id=1564026

 

to me it looks like they cut part of the inlet if im correct

 

are u sure thats ported shrouds...or just his own way of make the inlet bigger to accept a bigger size filter

 

There is a velocity stack welded to the inside of the GT4088R this is a Full-Race built car and Geoffs GT40 is the same way.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TurboElements.com &raquo;</TD></TR><TR><TD CLASS="quote">There is a velocity stack welded to the inside of the GT4088R this is a Full-Race built car and Geoffs GT40 is the same way. </TD></TR></TABLE>

what do you mean?

 

this was posted on here awhile back.

 

so....they grind down part of the inlet and put that in place to match up to the wheel opening?


why? why not just choose a non-ported cover in the first place?

 

interesting... subscribed to see how this turns out

 

As far as I know they just have the velocity stack cut to fit without having to cut anything on the housing.

And there is no non-ported comp housing available for the GT4088R.

 

so...wonder why they didn't extend it out farther...away from the edge of the housing...won't this still create some turbulance?

 

im not an engineer or something, but that little opening all around the velocity stack CANT be that great for performance, i mean if you wante to make full use of the stack, shouldnt it be sealed, or mated with the opening of the turbo???

just looks like an unfinished product or something

 

The outer area around the stack needs to be open to take advantage of anti surge compressor housings. The velocity stack cuts down on turbulence, and helps the midrange a bit.

 

now i am super confuse...agreed looks like an unfinish product

 

no air goes into the turbo on the outside of the velocity stack.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Justin Olson &raquo;</TD></TR><TR><TD CLASS="quote">The outer area around the stack needs to be open to take advantage of anti surge compressor housings. The velocity stack cuts down on turbulence, and helps the midrange a bit. </TD></TR></TABLE>

 

Hmmm that is pretty interesting. I wonder if there are any gains to be had by doing that. Are they manuf. the velocity stacks in house?

 

well there are NUMORUS post about non-ported housings making more power than ported....so i guess that's pretty much the goal of this...so, yeah...i think there might be some gains to be had. pretty cool stuff

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Full Race Geoff &raquo;</TD></TR><TR><TD CLASS="quote">the benefit from "deleting" it is not from the lack of the surge rung, the benefit comes from the fact that the air entering the compressor housing is a fully laminar flow, and its less of a pressure differential across the compressor wheel.</TD></TR></TABLE>

http://www.supraforums.com/for...87830

 

I believe this eliminates any downside to running a slotted anti-surge cover. Cuts down on air flow turbulance.

 

hmm that is interesting.. now where could i find a velocity stack to fit my 42r

 

I am going to resorect this thread to see if anyone knows were i can find this velocity stack for my 42r!!!!