hks vbc - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

270R · 05-27-2009, 10:44 PM

HEy i just got an hks vbc (manual boost controller) I have an s14 black top with stock internals, koyo rad and iridium plugs. just wanted to know whats a safe boost before the engine begins to detonate .. ???

Btw.. the HKS VBC is actually a Norgren Pneumatics. Motion Control Equipment, Fluid Control Equipment, UK, US, Worldwide pnumatics product..

Model v07-100-nnaa ..... maybe u can get it cheapuh there..

stock turbo

*Monooxide* · 05-28-2009, 11:40 AM

I personally ran 14ish PSI at full boost and 12~13 nearer towards redline. My personal AFRs reached 12.2 at the leanest near redline. If you don't have a front mount I wouldn't push the car much above 9~10 PSI.

However results may vary as I have some people get extremely lean at 11 PSI. Please get a wideband but by all means turn up the boost and have some fun.

270R · 05-28-2009, 12:05 PM

Quote:

Originally Posted by Monooxide

I personally ran 14ish PSI at full boost and 12~13 nearer towards redline. My personal AFRs reached 12.2 at the leanest near redline. If you don't have a front mount I wouldn't push the car much above 9~10 PSI.

However results may vary as I have some people get extremely lean at 11 PSI. Please get a wideband but by all means turn up the boost and have some fun.

hey do u have a egt sensor also? thinking of getting one of those too...

05-27-2009, 10:44 PM	#1
270R Zilvia Junkie Join Date: Jul 2002 Location: Bell gardens ca Age: 24 Posts: 318 Trader Rating: (0)	hks vbc HEy i just got an hks vbc (manual boost controller) I have an s14 black top with stock internals, koyo rad and iridium plugs. just wanted to know whats a safe boost before the engine begins to detonate .. ??? Btw.. the HKS VBC is actually a Norgren Pneumatics. Motion Control Equipment, Fluid Control Equipment, UK, US, Worldwide pnumatics product.. Model v07-100-nnaa ..... maybe u can get it cheapuh there.. stock turbo

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05-28-2009, 11:40 AM	#2
Monooxide Efficiency Slave Join Date: Mar 2005 Location: Farmington/Flint, MI Age: 21 Posts: 668 Trader Rating: (6)	I personally ran 14ish PSI at full boost and 12~13 nearer towards redline. My personal AFRs reached 12.2 at the leanest near redline. If you don't have a front mount I wouldn't push the car much above 9~10 PSI. However results may vary as I have some people get extremely lean at 11 PSI. Please get a wideband but by all means turn up the boost and have some fun.

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