CA18DET blow-off doesn't work - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

ju5tify · 09-11-2013, 07:26 AM

Hi.Sorry for my bad English.

I had stock CA18DET without any bov. Today i have installed HKS SSQV replica and it doesn't work in any way.
Maybe it matters, but even when i didn't have blow-off valve, sometimes i have heard some whistling noise when i release the accelerator pedal. Somebody told me that was the sound of spare air going through air filter.

shogun! · 09-11-2013, 07:29 AM

You have to test it while driving (build boost).

ju5tify · 09-11-2013, 07:30 AM

I've driven it after installation. But no sound.

battosaii930 · 09-11-2013, 07:55 AM

make sure it has vacuum check the hose if its not geting any it wont work

ju5tify · 09-11-2013, 08:04 AM

I've connected the vacuum line to the intake manifold just after the throttle body

spools420a · 09-11-2013, 08:10 AM

are you even building boost?maybe boost is leaking out before it can pssshh pressure off?

ju5tify · 09-11-2013, 08:13 AM

Maybe.. How can i detect it? I don't have boots gauge

Mikester · 09-11-2013, 12:24 PM

Get a boost gauge.

humilde_s13 · 09-12-2013, 08:43 PM

i have mine T'ed of the brake booster line on my ca18.

Croustibat · 09-17-2013, 03:07 AM

Quote:

Originally Posted by ju5tify

Hi.Sorry for my bad English.

I had stock CA18DET without any bov. Today i have installed HKS SSQV replica and it doesn't work in any way.
Maybe it matters, but even when i didn't have blow-off valve, sometimes i have heard some whistling noise when i release the accelerator pedal. Somebody told me that was the sound of spare air going through air filter.

Yeah, how strange.

09-11-2013, 07:26 AM	#1
ju5tify Join Date: Nov 2011 Location: ukraine Posts: 7 Trader Rating: (0) Feedback Score: 0 reviews	CA18DET blow-off doesn't work Hi.Sorry for my bad English. I had stock CA18DET without any bov. Today i have installed HKS SSQV replica and it doesn't work in any way. Maybe it matters, but even when i didn't have blow-off valve, sometimes i have heard some whistling noise when i release the accelerator pedal. Somebody told me that was the sound of spare air going through air filter.

09-11-2013, 07:29 AM	#2
shogun! Zilvia Junkie Join Date: Mar 2005 Location: Sweden Posts: 367 Trader Rating: (0) Feedback Score: 0 reviews	You have to test it while driving (build boost). __________________ My +700hp RS13

09-11-2013, 12:24 PM	#8
Mikester Nissanaholic! Join Date: Jun 2007 Location: Kathleen, GA Age: 50 Posts: 1,938 Trader Rating: (0) Feedback Score: 0 reviews	Get a boost gauge. __________________

09-12-2013, 08:43 PM	#9
humilde_s13 Zilvia Junkie Join Date: Nov 2011 Location: VA Posts: 555 Trader Rating: (4) Feedback Score: 4 reviews	i have mine T'ed of the brake booster line on my ca18. __________________ I will give you my pistol ammo at the speed of light towards your doom

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09-11-2013, 07:30 AM	#3
ju5tify Join Date: Nov 2011 Location: ukraine Posts: 7 Trader Rating: (0) Feedback Score: 0 reviews	I've driven it after installation. But no sound.

09-11-2013, 07:55 AM	#4
battosaii930 Leaky Injector Join Date: Nov 2006 Location: miami Age: 33 Posts: 112 Trader Rating: (0) Feedback Score: 0 reviews	make sure it has vacuum check the hose if its not geting any it wont work

09-11-2013, 08:04 AM	#5
ju5tify Join Date: Nov 2011 Location: ukraine Posts: 7 Trader Rating: (0) Feedback Score: 0 reviews	I've connected the vacuum line to the intake manifold just after the throttle body

09-11-2013, 08:10 AM	#6
spools420a Zilvia Junkie Join Date: Dec 2009 Location: phoenix az Age: 39 Posts: 422 Trader Rating: (1) Feedback Score: 1 reviews	are you even building boost?maybe boost is leaking out before it can pssshh pressure off?

09-11-2013, 08:13 AM	#7
ju5tify Join Date: Nov 2011 Location: ukraine Posts: 7 Trader Rating: (0) Feedback Score: 0 reviews	Maybe.. How can i detect it? I don't have boots gauge