Quote:
Originally Posted by JANNETTYRACING
Thanks for sharing.
Peak torque is where things can get ugly in a hurry, I purposely leave them a litte low there becuase in the event you get some bad gas it won't tear it self apart, it is easier on the engine components where we are doubling factory rated HP and Torque.
Torque is Mean on parts due to cycle time if that makes sense.
Example, I once destroyed a manual transmission (cleaned the teeth off 5th gear) in my Diesel truck by installing an overdrive on the back of the trans, and operating the truck at Peak torque 1400 rpm vs 1800 rpm on the highway.
The higher torque at lower rpm spreads out the power strokes hammering the parts like a giant sledge hammer.
This roughly illustrates what I am talking about.
Typically the extra torque is useless on a street tire anyway, (spinning ain't winning).
As we get further from peak torque we need to roll in more timing to keep cylinder pressure up and carry the torque and is not where the destruction occurs.
Im 61 this year, I started working on and tuning engines of all kinds starting at 5 years old thanks to my Grandfather, Tool maker and Genius and in my eyes.
I share the 56 years of engine tuning experience to help people understand why I do what I do.
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There is a dozen ways to skin a cat, and as we've already covered everyone's cars are different, modifications/parts/use case etc. Great info in here thus far.
edit: Jannetty where is that post you quoted from lol? I'm trying to go back and read on what page for more context but couldn't find it.