Why do some cars have way more torque than others?
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ez-go
Why do some cars have way more torque than others?
I some times see cars with comparable mods and while the HP and overall power fluctuates due to temp, dyno, smoothing factors etc there still seems to be some car with 100ft lbs over their HP where as mine has 10 ft lbs more torque than HP. My car has similar mods to eurocharged stage 2 substitute long tubes for short tubes and a mid pipe w/resonator and cat delete with X pipe. EC shows 600hp and 670ft lbs. Minus 15% this is about 510hp and 570 at the tire. Or if you subscribe to autos zapping 20% roughly 480hp and 536ft lbs. On the rollers my car made 461hp and 471ft lbs. it's just curious to me how some cars seem to make all the same HP as the rest of us yet some of you guys get ridonkulous torque numbers. Is it all in the tune or is it luck or how do I get another 60 ft lbs? Lol
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E55
Great question. Dyno numbers depend on so many factors. Ambient temp is one and what about your IAT temp? Barometric pressure and engine knock retard are others. Did you cool down the car before dyno run? Your numbers seem a bit soft for your current mods.
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ez-go
Yeah who knows. Previous owner took it but I feel it's safe to assume they did their diligence. I'm just curious cause I'm noticing quite a few that have a large differential between torque and HP. It's interesting to see how much they vary.
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E55 amg
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Dyno, dyno, dyno...different temps, dif dynos, whatever...who cares? How does the car run...that's what matters! Good luck with it either way but just run someone with more or similar mods...even a guy with less mods...just see how it compares to others actually running!
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Look at the power difference between the afr between those to runs. One is two rich and one is to lean. Why is there such a difference in the AFR in those runs?
Last edited by austingtir; Aug 17, 2013 at 08:55 PM.
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ez-go
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on my dynojet for what ever reason my vehicles always showed a lower torque then others but as long as the curve is good thats what matters also my cars usually ran quicker compared to ones that just showed a high number.
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I kinda said this already but all of this said here can be a huge difference.
Last edited by 60nomad; Aug 18, 2013 at 10:07 AM.
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one car at a time
....That is what I did and I too live in California....
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ez-go
I was under the assumption that a wideband and logger minimum was needed to successfully accomplish this. I don't have a wideband.
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one car at a time
Call EC and they will explain...
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Also how does he do this with the fuel trim values? Before he can use the data you need to reset the ECU, right???
