so the stock heads and motor can handle 8k know problem.. i just don't wanna break anything

 

im hitting 8k in the 1/4 with bolt ons. you must not have much done

 

4G63's are much cheaper to upgrade (simpler, older).

As all have said, you'll be plenty fine with an 8K redline. Lots and lots here up to 8k with no problems. I redlined my evo at track time and time again with not even a hiccup.

Shawn

 

I agree with many on the stock turbo doesn't need to go all the way to 8k , maybe if you were racing and just needed the extra rpms to avoid shifting them ya i would take it to 8 but other than that theres not really power up there stock turbo wise. Now meth and cams would be a different story.

 

you have a evo9 which 4th gear ends like at 112mph, where a evo 8 4th gear goes to about 120mph.... i passed the 1/4 mile at 116.8mph in 4th gear in my 8 at about 7600rpm

 

when i was in 4th gear at 7600rpm on my 8 i would be around 120+. Idk exactly but it was def past 120 by a little. So if you need the extra rev to pull another car then use it on a road course of course. The 5th gear always kills the momentum of the evo so i always use the extra gearing i have to keep ahead.

 

8 k is fine

 

ok.. i just dont want anything to blow up.. if it isn;t common for bad things to happen ill try it