Re: car misses at low rpms under load?
Posted: September 16th, 2010, 11:25 am
450 was the highest I've had in a long while. 300 is common too.
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i honestly dont see how people are getting 400-500km a tank. i always fill up once my low fuel light comes on and 95% of the time never much past 300km. i do pretty much all city driving, and the most i have gotten is like 380km. i can shift at 2500-3000rpm for an entire tank, and shift at redline for the entire tank and still come up around the same milage.Ryan wrote:450 was the highest I've had in a long while. 300 is common too.
i just dont get it. even when my cars running great ive never had good milage. breaks arnt rubbing, new wheel bearings in rear, alignment is good, plugs/wires have been replaced, new o2 sensors, fuelpump/filter have been replace, even 14" rims with smaller tires. unless my 2.25" high flow exhaust is too big or something i just dont see my car getting great milage. swapping my motor didnt even really improve my milage and that was coming from one running on 5 cylinders. the only thing that has seen an improvement was the plug wires. was getting 225km a tank before and made it to 300km after. ive just accepted my cars milage sucks and i dont think theres much i can do about it._-Night-Shade-_ wrote:I was getting no less than 500km a tank with my K8. After I fix things with my ZE it should be around the same.
2.25" IS too big for the K8, that's what I'm running with my ZE right now. You're killing your bottom end. In fact that's even too big for your top end.mikeinaus wrote:i just dont get it. even when my cars running great ive never had good milage. breaks arnt rubbing, new wheel bearings in rear, alignment is good, plugs/wires have been replaced, new o2 sensors, fuelpump/filter have been replace, even 14" rims with smaller tires. unless my 2.25" high flow exhaust is too big or something i just dont see my car getting great milage. swapping my motor didnt even really improve my milage and that was coming from one running on 5 cylinders. the only thing that has seen an improvement was the plug wires. was getting 225km a tank before and made it to 300km after. ive just accepted my cars milage sucks and i dont think theres much i can do about it._-Night-Shade-_ wrote:I was getting no less than 500km a tank with my K8. After I fix things with my ZE it should be around the same.
What's that supposed to mean...?mikeinaus wrote:it is a k8 afterall, if i was that worried about performance i wouldnt be driving a k8 mx3 would i?
That's why you drive to the exhaust shop after the swap, or suffer as you currently are.mikeinaus wrote:i know its too big but i do plan on eventually getting a de or a ze. i didnt really see a point in doing the exhaust twice so i just planned ahead.
Yes, actually it could. Read about exhaust scavenging.mikeinaus wrote:performance aside i doubt the exhaust could lower fuel economy 150-200km a tank