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drop in power and tourqe

326 views 8 replies 3 participants last post by  rustynova 
#1 · (Edited)
went to the n/w rr day today and the results were pretty good, my 15 year old calibra 2.0 8v made 112bhp and 117lbft tourqe which isnt bad but it does have one problem thats annoying me.

at 4500rpm i get a drop in power and tourqe, bhp went from 89bhp down to 87bhp and tourqe went from 110lbft down to 100lbft.

can anyone point me in the right direction as to what can cause this TomGTE has kindly suggested to check everything to do with my fuelling
 
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