Sound clips of anti-surge compressor housing?
Sound clips of anti-surge compressor housing?
10-02-06, 06:06 PM
#2
I like this one.
http://www.spacerat.net/Dori/Mattsdynopulls.wmv
Sorry, the link is dead. I have the vid if someone will host it.
http://www.spacerat.net/Dori/Mattsdynopulls.wmv
Sorry, the link is dead. I have the vid if someone will host it.
Last edited by 13B-RX3; 10-02-06 at 06:11 PM.
10-02-06, 07:41 PM
#4
10-03-06, 06:58 AM
#6
W. TX chirpin Monkey
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Wait? Vented or Non-Vented. Give me a call and I can whistle it for you. I have a vented housing and it sounds like a diesel even in vacuum. Seems to build boost a little quicker too.
10-03-06, 07:14 AM
#7
600+rwhp club member
Rich, all of the vids of Eric Cheatham's car is the anti-surge housing that you hear whistling really loud when he is on the gas. I think dhalen's dyno vid was that way also.The both run t51R turbo's, and they have the anti-surege compressor housing. I have a GT40R with it, but no vids yet. I'll try to make some very soon and post it up.
Dee
Dee
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10-04-06, 05:33 PM
#9
I have a h front cover on my turbo. I think it sounds 10x times faster than it is. I guess both covers have there + and minuses. Good thing is they can be swapped in 3 minutes.
10-04-06, 06:40 PM
#11
Original Gangster/Rotary!
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Originally Posted by CMonakar
They should be on Streetfire in the BOV and whistle tip noise section 
10-04-06, 10:09 PM
#13
10-10-06, 11:52 AM
#17
ported shrouds on a rotary is nothing more then a freakin noise maker at the expense of spool up and effieciency. Why would anyone choose to spool slower and make slightly less power to have something that sounds cool? The ported shroud was designed to buffer surge. Not the kind of surge from throttles slamming shut, but the kinda surge when your turbo is pushing more air then your engine is willing to ingest. It adds to the left side of a compressor map (surge line) and slightly hurts every were else. They also tend to spool slower. They were primarily designed for large deisel engines were the turbo is spooled up but pushing more air then the deisel engine is willing to ingest till the RPM's climb high enough to fall back on the map islands (away from surge line). Our cars will never spool up these mid/large sized single turbos fast enough to be in surge EVER (perhaps running to small twins, then yes a ported shroud might be benefitual). So go out and buy your noise makers (although I admit it sounds cool, I just can't justify having later spool and less effiency for noise no matter how small of a diference). HKS makes their ported shrouds so the effiency lose is minimal due to still having a smooth bell mouth rather then the ugly stepped inlet, and yes you still get the "sound". Those who don't know the sound everyone is talking about, just sit in traffic and listen to any large deisel truck/18 wheeler/large dump truck. Its the slight whistle noise during spool up.
Do a search, I and a few others have covered this housing style numerous times and i even give pics of what the difference is and how it functions.
~Mike...........
Do a search, I and a few others have covered this housing style numerous times and i even give pics of what the difference is and how it functions.
~Mike...........
Last edited by RacerXtreme7; 10-10-06 at 12:07 PM.
10-10-06, 12:13 PM
#18
For those too lazy to search, or those neh-sayers.
Straight from Garrett:
A Ported Shroud compressor (see Fig. 2) is a feature that is incorporated into the compressor housing. It functions to move the surge line further to the left (see Fig. 3) by allowing some airflow to exit the wheel through the port to keep surge from occurring. This provides additional useable range and allows a larger compressor to be used for higher flow requirements without risking running the compressor into a dangerous surge condition. The presence of the ported shroud usually has a minor negative impact on compressor efficiency.
~Mike..........
Straight from Garrett:
A Ported Shroud compressor (see Fig. 2) is a feature that is incorporated into the compressor housing. It functions to move the surge line further to the left (see Fig. 3) by allowing some airflow to exit the wheel through the port to keep surge from occurring. This provides additional useable range and allows a larger compressor to be used for higher flow requirements without risking running the compressor into a dangerous surge condition. The presence of the ported shroud usually has a minor negative impact on compressor efficiency.
~Mike..........
10-10-06, 04:08 PM
#19
Original Gangster/Rotary!
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Thanks for all the info Mike. Based on that comment on the garrett website, I opted against the anti surge comp housing when ordering my turbo about 6 weeks ago. Looks like I made the correct decision 
10-10-06, 06:14 PM
#21
Big Daddy!!!
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Originally Posted by GoodfellaFD3S
Thanks for all the info Mike. Based on that comment on the garrett website, I opted against the anti surge comp housing when ordering my turbo about 6 weeks ago. Looks like I made the correct decision
So are you finally going single or are you going with a crazy one off twin set up?
R.K.
10-10-06, 06:17 PM
#22
Original Gangster/Rotary!
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Originally Posted by crazyrx7
So are you finally going single or are you going with a crazy one off twin set up?
R.K.
R.K.
10-10-06, 09:46 PM
#23
Big Daddy!!!
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Originally Posted by GoodfellaFD3S
A nice streetable single setup, mainly b/c I want the option to run higher boost/race gas.
So you finally saw the light (lol).
R.K.
10-10-06, 10:16 PM
#24
Original Gangster/Rotary!
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Originally Posted by crazyrx7
So you finally saw the light (lol).
R.K.
R.K.