Originally Posted by
T.S.
What motor is in my 1.8t Audi 2001. Is it a 20v?
yes
What compression does the stock motor run?
9.5:1
Why would i want to or need to upgrade my pistons and rods?
you really dont need to upgrade your pistons, the stock pistons are good for the setup you have right now. but you can if you want to run high boost. rods you should upgrade b/c the stock ones a weak and will break if you run too much boost. so dif get new rods just to be on the safe side and you can get new pistons if you want to run higher levels of boost.
And whats the difference in compression?
lower compression means that you can run higher levels of boost safer
Ill give reps for help!
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