Do you need a retune if you swap vct cam with aftermarket cam gear? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Hbuscema · 09-24-2020, 12:48 AM

Hi there,
Currently have a build Sr20det in my s14 and the only thing that wasnt upgraded was the vct, the vct ended up being super rattly so I replaced it with one that wasent, 2 weeks later the new one started rattling, if I was to swap my vct cam gear with an aftermarket cam gear would I need to retune the car?
Thanks

zombiewolf513 · 09-24-2020, 09:02 AM

probably. what ecu are you using? might be able to just unplug the vct solenoid on the stock ecu.

in my opinion id rather pay for new vct gears than pay to down-tune the car. you're losing a lot of low end torque by ditching vct.

Hbuscema · 09-24-2020, 06:58 PM

Quote:

Originally Posted by zombiewolf513

probably. what ecu are you using? might be able to just unplug the vct solenoid on the stock ecu.

in my opinion id rather pay for new vct gears than pay to down-tune the car. you're losing a lot of low end torque by ditching vct.

Link ecu, so very customisable. Only reason I don't want to buy another vct is that it's double the price of a aftermarket cam set, but I see where you are coming from with the loss in power

jr_ss · 09-26-2020, 10:43 AM

It would be a mistake to omit the VCT.

09-24-2020, 12:48 AM	#1
Hbuscema Join Date: Jul 2020 Location: Auckland newzeland Posts: 6 Trader Rating: (0) Feedback Score: 0 reviews	Do you need a retune if you swap vct cam with aftermarket cam gear? Hi there, Currently have a build Sr20det in my s14 and the only thing that wasnt upgraded was the vct, the vct ended up being super rattly so I replaced it with one that wasent, 2 weeks later the new one started rattling, if I was to swap my vct cam gear with an aftermarket cam gear would I need to retune the car? Thanks

09-26-2020, 10:43 AM	#4
jr_ss Post Whore! Join Date: Dec 2005 Location: Pa Posts: 6,052 Trader Rating: (34) Feedback Score: 34 reviews	It would be a mistake to omit the VCT. __________________ My SR20VET

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09-24-2020, 09:02 AM	#2
zombiewolf513 BANNED Join Date: Mar 2011 Location: AZ Age: 33 Posts: 1,682 Trader Rating: (6) Rides Gallery: zombiewolf513 Feedback Score: 6 reviews	probably. what ecu are you using? might be able to just unplug the vct solenoid on the stock ecu. in my opinion id rather pay for new vct gears than pay to down-tune the car. you're losing a lot of low end torque by ditching vct.