Sr20det Turbo spooling noise, is it supposed to be loud? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

sepulchral · 10-13-2004, 08:32 PM

Today i took off the stock rubber intake tubing and i cut off the extension on it that would go to a recirculatory BOV, then i sealed it shut pretty good, put it back on.. Now when my turbo spools its really loud.. could it be a leak or something? car seems to pull hard still

Dutchmalmiss · 10-13-2004, 11:28 PM

does it make a sort of whistling sound? are you sure you hear only the turbo spooling?

sepulchral · 10-14-2004, 05:54 AM

ya its like a whistle

khoadogg · 10-14-2004, 12:43 PM

Won't you surge if there's not BOV?

sepulchral · 10-14-2004, 01:53 PM

i have a bov

driftstyre · 10-14-2004, 03:57 PM

Sounds like there might be a leak. Do you have any way of pressure testing the post-compressor pipes? If not just seal the compressor inlet with a few layers of thick plastic and a hose clamp. Hook up an air compressor (something like a blower attachment) to one of your vacuum lines anywhere before the throttle body and pump the compressed pipes to 2 bar. If there is a leak you will hear it.

10-13-2004, 08:32 PM	#1
sepulchral BANNED Join Date: Mar 2004 Location: Midlothian. VA Posts: 2,050 Trader Rating: (0) Feedback Score: 0 reviews	Sr20det Turbo spooling noise, is it supposed to be loud? Today i took off the stock rubber intake tubing and i cut off the extension on it that would go to a recirculatory BOV, then i sealed it shut pretty good, put it back on.. Now when my turbo spools its really loud.. could it be a leak or something? car seems to pull hard still

10-13-2004, 11:28 PM	#2
Dutchmalmiss Post Whore! Join Date: Apr 2003 Location: Socal (323) Age: 39 Posts: 3,501 Trader Rating: (14) Feedback Score: 14 reviews	does it make a sort of whistling sound? are you sure you hear only the turbo spooling? __________________ Pignose, biaaatch.

10-14-2004, 05:54 AM	#3
sepulchral BANNED Join Date: Mar 2004 Location: Midlothian. VA Posts: 2,050 Trader Rating: (0) Feedback Score: 0 reviews	hey ya its like a whistle

10-14-2004, 12:43 PM	#4
khoadogg Nissanaholic! Join Date: Oct 2003 Location: San Jose, CA Age: 41 Posts: 2,423 Trader Rating: (11) Feedback Score: 11 reviews	Won't you surge if there's not BOV? __________________ AIM SoarinStrong[B]STRONG 6iX[B] RB single turbo ///Work AMKREAD 180sx

10-14-2004, 01:53 PM	#5
sepulchral BANNED Join Date: Mar 2004 Location: Midlothian. VA Posts: 2,050 Trader Rating: (0) Feedback Score: 0 reviews	i have a bov

10-14-2004, 03:57 PM	#6
driftstyre Zilvia.net Advertiser Join Date: Jul 2003 Location: Boston Age: 46 Posts: 748 Trader Rating: (4) Feedback Score: 4 reviews	Sounds like there might be a leak. Do you have any way of pressure testing the post-compressor pipes? If not just seal the compressor inlet with a few layers of thick plastic and a hose clamp. Hook up an air compressor (something like a blower attachment) to one of your vacuum lines anywhere before the throttle body and pump the compressed pipes to 2 bar. If there is a leak you will hear it.