**stock 93 vr4 boost controller at 14psi is it safe to run without a wideband??** - 3000GT/Stealth International Message Center
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Old 01-14-2013, 03:06 AM   #1 (permalink)
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Mitsubishi **stock 93 vr4 boost controller at 14psi is it safe to run without a wideband??**

I have a 1993 vr4 bone stock with a boost guage and boost controller i have been running at 14 psi without any fuel cut but was wondering how safe is it to run this way without knowing my afr should be careful and get a wideband or will the car handle it?? thanx !
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Old 01-14-2013, 03:21 AM   #2 (permalink)
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Default Re: **stock 93 vr4 boost controller at 14psi is it safe to run without a wideband??**

Going to want a logger.

Especially if boost is higher than stock at all...

I personally would back it off to 12 psi to be safe. You are likely seeing some knock at 14, even with a REALLY healthy 93.
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M2 Turbo-back Exhaust, K&N FIPK, AEM UEGO, AEM Digital Boost Gauge, EGR Blockoffs, 2-piece Aluminum Driveshaft, IPO MBC @ 13psi, DSM Sidemounts, 3sx Pre-Turbo Intake Pipes, DNP Hardpipe Kit, HKS SSQV, Megan Coilovers, MP Control Arms, 3sx Clear Turns, 18x9.5" Rota P45R, 2G Brake Conversion, R1 Concepts Drilled and Slotted Rotors, Solid shifter bushings, and mint interior

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Old 01-14-2013, 07:17 AM   #3 (permalink)
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Default Re: **stock 93 vr4 boost controller at 14psi is it safe to run without a wideband??**

Wideband not so important the factory Ecu will take care of the afr all the way to fuel cut. Mine was at around 19psi peak(wastegate line had come off)More important is a datalogger to monitor knock. Up boost till u see knock then go back a psi.
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Old 01-14-2013, 11:38 AM   #4 (permalink)
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Default Re: **stock 93 vr4 boost controller at 14psi is it safe to run without a wideband??**

back it to 12. untill you hot wire the fuel pump.
then i would try 14. not a PSI more untill you get a logger.
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Old 01-14-2013, 01:42 PM   #5 (permalink)
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Default Re: **stock 93 vr4 boost controller at 14psi is it safe to run without a wideband??**

10-4 thanx for all the info will do! makes me feel much safer now im gunna turn it down today until i get a logger!
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