Lean at high rpm - ZR-1 Net Registry Forums

ALLTHECAMS · 05-04-2019

Dynoed my car today after top end porting. Did 3 pulls and it made 383, 384 and 389 on the last pull. The graphs also dipped between 6k and 7k rpm. Before porting it made 374. Also leans out above 5k rpm so I think it's pulling timing. We checked fuel pressure and at WOT it was 40psi. Are my pumps dying?1557011356540.jpg IMG_20190504_154948035.jpg

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05-04-2019	#1
ALLTHECAMS Join Date: Jul 2016 Location: Bloomington, MN Posts: 127	Lean at high rpm Dynoed my car today after top end porting. Did 3 pulls and it made 383, 384 and 389 on the last pull. The graphs also dipped between 6k and 7k rpm. Before porting it made 374. Also leans out above 5k rpm so I think it's pulling timing. We checked fuel pressure and at WOT it was 40psi. Are my pumps dying?1557011356540.jpg IMG_20190504_154948035.jpg Sent from my XT1710-02 using Tapatalk __________________ 1991 ZR-1 #520 Arctic White/Gray