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The mkiv Supra Owners Club

AFR's again


colsoop
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Right i did search but couldn't get any real life reading of the stock twin turbos @ 1 bar.

 

I recently wired up my AFR gauge (AEM wideband),

 

Accelerating in 5th gear at 20 mph the boost goes up to 0.6 bar the AFR's only go down to 13.2, this seems too high to me. When you get in to pre spool at about 3k the Afr's go to 12.6 deviating down to 12.2 then when both turbos are online the AFR's are 10

It seems to hover around high 12's mid to low 13's on aything but both turbo's.

 

Does this sound off ?

 

Thanks

 

Colin

Edited by colsoop (see edit history)
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