pushing stock NA MKIII's
 

how safe is it to push a stock NA MKIII? mines a 5 spd 88 NA, all stock, 109k original miles, great cylinder compression, no headgasket problems, just got it tuned up. sometimes i wanna push it to 7000 or 8000 rpm but i feel that the engine is so powerful somethings gonna blow. maybe im just a rookie, ive only driven my MK III about 500 miles since I got it and ive been gradually fixing it up (thank firestone for delaying me 2 months) and havent even dragged once. im not so much into racing as i am speeding, but sometimes i get the urge to push the hell out of it. im not saying my car isnt fast enough for me, im just curious to know how fast it really is.

After many years of experience, and many cars, my advice is to NOT rev over 6k with that motor. You WILL break something ! Then you're walkiing.

The engine actually loses torque above 5k, so it time to upshift by 6k.

Worn (but still functioning) internal parts will start to fail when over revved.

After you rebuild the engine, up the power, it can take more beating.

yeah i agree with the 6k shift...i been shifting mine at 6800 and umm....after 5 times draging...i threw a rod...;)

I agree, why would you wanna go above 6 all you're doin is losin power torque and speed, not to mention some engines parts if you keep doing it.

i second that