91integraLSVTEC

i recently installed a greddy kit on my 95 honda civic ex sohc and i dont really know that much about turbos but i'm learning. i'm currently running the stock boost of 5.5. when i let the turbo spool up 3k rpms+ and let off the throttle i hear this fluterring noise. sounds kool but ive read thats called compresser surge? is that bad for my turbo at 5.5 psi? if it helps, i have no bov and no intercooler just the base greddy 15g kit. thanks in advance

igo4bmx

the kit does not come with a bov, and you definately should invest in one

Dunc

whoa , get a blow off valve immediately if not sooner

Drkaccrd

I AGREE DEFINTELY GET A BOV. NOT HAVING PUTS ADDITIONAL STRESS ON THE TURBO . YOUR PROBABLY HEARING THAT NOISE BECAUSE THAT EXCESS PRESSURE REALLY HAS NOWHERE TO GO .

B16Civic93

yeah, you need a blow off valve. you are encountering a compressor surge like you said which is caused by the pressure build up in the charge pipes and when you let off the gas and the throttle plate closes the pressure has no where to go except back to the turbo which is really hard on it and bad for the turbo. so if you want it to last. invest in a bov.

91integraLSVTEC

thanks for the fast replys! oh ****. i need to get a bov asap. anyone know where i can get one cheap? i perfer the quiet, rush of air - non whistle type. thanks in advance


Modified by 91integraLSVTEC at 2:39 PM 4/26/2005

YiNYaNg

Just sold my HKS Super Blow Off Valve to a H-T member..
It's just how you like it..it's just a surge of air and no whistle...there should be some for sale on ebay. The reason I sold it because it was too quite.

nerdsports

try ebay or the sponsor marketplace on here...

TurboXS bovs are usually "air" sounding.

good luck and get that fixed.

egvtec

stay away from the type s if u hate whistle sounding bov's i have it and it whistles and its load as ****. i like it. but you might not.

dennis

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 91integraLSVTEC &raquo;</TD></TR><TR><TD CLASS="quote"> i perfer the quiet, rush of air - non whistle type.</TD></TR></TABLE>

Then I'd get a DSM blow off valve for cheap. we put one on my friends d16 and it sounds exactly like you describe. The price is right too.

Integra21

the new Greddy Type RS is supposed to be a whooosh sound - compared to my type S - which is more of a whistle type

Drkaccrd

The blitz Bov is relatively quiet. Its more of a whoosh than anything. Good luck with that.

Accord94DX

type S whistles, the blitz and HKS are swoosh like

YiNYaNg

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by H-T &raquo;</TD></TR><TR><TD CLASS="quote">Just sold my HKS Super Blow Off Valve to a H-T member..
It's just how you like it..it's just a surge of air and no whistle...there should be some for sale on ebay. The reason I sold it because it was too quite.




</TD></TR></TABLE>

This thing vents the air around the center circle cap that's why it's just a gust of air sound and no "pssshhh"..noise...

T-RO

Even with my DSM bov installed i get that fluttering sound unless im at WOT. Then it goes "Choo"

YiNYaNg

Did you hook up a vacum line from your intake manifold to the bov?

illusive

The fluttering noise that you described that is happening after 3k and letting off the gas is your internal wastegate on the turbo.

As stated you will need a bov, but I ran my greddy kit for a while with out it about a month. The boost is very low and as long as you get one shortly it will not cause any harmful damage. I have the Turbo XS type S BOV(smallest turbo xs makes) very quite and sounds like a pshhhh sound.


Modified by illusive at 3:15 AM 4/27/2005

Dunc

I have the blitz, its quiet and makes the "whoosh" sound.

Drkaccrd

This noise that your describing from the internal wasgate it shouldnt be heard if you have a BOV right ? I have the HKS SSQ.

SOHC_MShue

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dennis &raquo;</TD></TR><TR><TD CLASS="quote">Then I'd get a DSM blow off valve for cheap. we put one on my friends d16 and it sounds exactly like you describe. The price is right too.</TD></TR></TABLE>
1g dsm bov

GSR_ITM

<U>BOV!!!!!</U>

JDMSiGuy17

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by illusive &raquo;</TD></TR><TR><TD CLASS="quote">The fluttering noise that you described that is happening after 3k and letting off the gas is your internal wastegate on the turbo.

As stated you will need a bov, but I ran my greddy kit for a while with out it about a month. The boost is very low and as long as you get one shortly it will not cause any harmful damage. I have the Turbo XS type S BOV(smallest turbo xs makes) very quite and sounds like a pshhhh sound.


Modified by illusive at 3:15 AM 4/27/2005</TD></TR></TABLE>
i agree with him! it shouldnt hurt it too bad if at all as long as your now going full boost on it and you get a blowoff valve in the near future. and get an intercooler right after that cuz you will need that too so start saving some more money. but good luck with your boost project!

91integraLSVTEC

thanks for all the replys! i listen to a sound clip of the blitz bov on blowoffvalves.com and really liked the quiet air woosh noise that it makes. so i purchased a blitz bov from a kool guy here on honda-tech and i'm about to purchase a smic and 450cc injectors from a guy on dsmtalk.org . budget building. i love it! i'll try to get the bov installed by tomorrow, thanks again for all your help

StolenTeg

Get the loudest BOV you can LOL, first i went with a quite one and i got tired of it, i went with a louder one and i love the sound