wers all d old zth kakis? all fart tart d...or dont like forums d? lol

devious17

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Nov 18, 2003
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Jeepers! 16 years with Zth is the only forum I've stayed so long. Who's already a grandpa?
 

bimmer

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My last post was March 2016. Today logged in again. March 2021.
What have i missed? :)
 

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Dear Friends,

We all love our cars & like to improve our rides (if u're not, u won't come to ZTH, right?) :biggrin:

I would like to know how do u measure improvement of torque & hp without putting ur car to a dyno machine..?

Especially after u bolt on some simple performance part..

Let me share how i do it 1st.. i'm not a pro.. so, my method is not exactly correct..


IDLE SPEED
the 1st thing i would do is take note what rpm my engine idle before and after i bolt on the...
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