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Old 12-13-2008, 08:26 AM   #1
thebarber
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Quote:
Originally Posted by NonStopTuning View Post
Like I said... Due to the weight reduction and underdriving, the torque curve will show similar gains at all RPM
lol, you're no fun. i just was wondering if richard could conger up a dyno showing it...i realize itd pretty much do to the tq curve what it did to the hp curve....3hp everywhere

Quote:
Originally Posted by 4MPG View Post
What was the stock WHP of this car? Is this on stock tune? How was MPG effected?
check of of richards other threads to find the answers...

but he's running intake, xD throttle body, a new prototype intake manifold, long tube header, and custom exhaust to get the 120 and 123 with the underdrive pulley (and yes, nst, the water and alternator pulleys too)

id imagine mileage with JUST the underdrive pulley (and/or other pulleys) would increase (which is to say: it would use less gas) as long as other items remain the same (including how you drive)
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Old 12-13-2008, 03:58 PM   #2
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Here is the graph again with torque added. Since HP & TQ are mathematically related, any time there is a change in HP there has to be a coresponding change in torque. Below 5252 rpm, a change in hp will result in a greater change in tq (the lower the rpm-the greater the difference). Above 5252 rpm, a change in hp with result in a smaller change in Tq. BTW-A dyno vs rpm will show gains offered by u-pulleys-here is a perfect example. Also, gains from u-pulleys typically increase with engine speed. Hope this helps.

Quote:
Originally Posted by thebarber View Post
lol, you're no fun. i just was wondering if richard could conger up a dyno showing it...i realize itd pretty much do to the tq curve what it did to the hp curve....3hp everywhere


check of of richards other threads to find the answers...

but he's running intake, xD throttle body, a new prototype intake manifold, long tube header, and custom exhaust to get the 120 and 123 with the underdrive pulley (and yes, nst, the water and alternator pulleys too)

id imagine mileage with JUST the underdrive pulley (and/or other pulleys) would increase (which is to say: it would use less gas) as long as other items remain the same (including how you drive)
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Old 12-13-2008, 04:10 PM   #3
CASTREX
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Nice!!!
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