Ran on the dyno this weekend

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02-03-2008 | 07:42 PM

#16

adidasman23

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Joined: Oct 2005

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From: Millstadt, IL

i don't get it. you ran high Hp and low torque on your dyno. why is that. i ran 433.7hp and 1116.5tq. i know every truck is different but that is a big differents. can anyone explane.

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02-03-2008 | 11:15 PM

#17

Big Blue24

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Joined: Jan 2007

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From: Las Vegas, NV

Torque is a function of HP and RPM. Identical HP at lower RPM=more torque. You have a 65mm turbine on your identical compressor sized turbo. The smaller exhaust wheel combined with smaller housing and smaller wastegate puck means that your turbo spools up faster so you make higher HP at lower RPM. Then, due once again to the smaller turbine of your turbo, you run out of lungs on the top end because your engine cannot exhale as much exhaust with the high drive pressure quick spooling 65mm wheel and smaller wastegate bypass puck.

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02-04-2008 | 12:14 AM

#18

kas83

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Joined: Jan 2007

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From: Plover, WI

Quote:

Originally Posted by kxhonda

I'm actually wanting to go with one of II's silver series with the 74mm turbine wheel. Still not sure what size to go with on the compressor size.

I have a video of the run too. Keep an eye on the kid holding the tube on my exhaust, kinda felt sorry for him, lol
http://www.youtube.com/watch?v=q_jsfjhzxdY

Seeing as most are recommending the 62/71/13SS, I'd say the Silver 62 would work pretty good for you. The 74mm turbine in the 14 cm housing would probably be pretty close to the spoolup of the 71/16SS that HOHN has mentioned earlier.

As for the kid holding the exhaust tube, it didn't look like he was enjoying himself too much there.

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