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I supported Toymods
Location:
Sydney
Registered:
May 2002
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AFR tuning advice
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Sun, 03 July 2005 13:03
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Hi guys
Got my car dyno'd today. 138.6kw stock 2.0L turbo 3SGTE (8psi)
made pretty good power for a stock motor. Just have tvis disabled (removed the hose) power curve is pretty smooth but the afr. Im thinking of adjusting it with an SAFC-II and maybe better ignition components
AFR dips as low as 10.5 as show on the graph. But averages 11.5-10.5 Rich mixture. Once I sort out intercooling would it be fessable to tune it to get about 12 AFR and hope to get some more power 
Any advice would greatly be appreciated
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: AFR tuning advice
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Sun, 03 July 2005 16:27
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First of all, reconnect the TVIS. By just disconnecting the hose, you've lost all the benefits of the system functioning and you've gained nothing in return. It's there for a reason.
As for tuning the AFR's, take it to someone you know is familiar with the particular tool (i.e. SAFC2) and they should know exactly what to do.
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: AFR tuning advice
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Sun, 03 July 2005 16:30
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And to ensure that was seen as the friendly comment it was,
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I supported Toymods
Location:
Sydney
Registered:
May 2002
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Re: AFR tuning advice
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Sun, 03 July 2005 20:04
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Actually I found it to open my top end.
Bottom end is great with tvis enabled. But top end speeds over 100kms. Just takes too long to build up (ie when over taking on the motor way)
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: AFR tuning advice
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Sun, 03 July 2005 23:47
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To be honest dude, my money is on it being placebo. Either that or it wasn't working in the first place. Assuming it is working, it would make no more restriction than what you have now, and the only reason I can see it freeing up top end is if you physically removed it.
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I supported Toymods
Location:
Australia
Registered:
November 2003
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Re: AFR tuning advice
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Mon, 04 July 2005 05:34
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TVIS disabled = TVIS at WOT
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