Subaru Impreza WRX STI Forums: IWSTI.com - View Single Post - engine mods for low-end torque
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Old 03-09-17, 05:14 AM  
mheyman
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Default Re: engine mods for low-end torque

Quote:
Originally Posted by RussellX View Post
Does that mean the increased torque can also be the cause of rodknock???
Truth is no one has suggested they understand the STI bearing issue, but we know they fail "too often" and it is catastrophic. We also know lugging any engine is hard on bearings and it should be avoided. Lugging an engine under boost is the worst for that engine.

Not lugging may not save your engine, but at least you'll know you didn't unnecessarily shorten their life.

Lugging is poor driving technique. If you have boost you have it because you need torque. You'll gain effective torque by downshiftin to raise rpm. A stock STI sweet Spotify 3500-5800rpm, but if you are accelerating hard you want to downshift into the lower part of that range - say 4000rpm.
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