Another_User

My engine has always been weird. When you lay into it, somewhere late into 3k rpms, or maybe a little later, the engine tone just changes. It kind of becomes a growl. I know it was more pronounced back when I was getting false knock (putting me in the mid teens for WOT timing), but even now the exhaust tone just totally changes. A friend of mine noticed the other day and it just reminded me.

TigerWoodsJr

I know my car gets just plain mean sounding at about 3k

777

iTrader: (21)

that's common...we can call it our vtec

tcarswell

I think you may have to be more specific about the noise.

777

iTrader: (21)

it's the change in sound that gets really deep...it's the typical sound of a v8 powered car

Another_User

It's funny that you say that. That is almost exactly what the sound difference is like, when VTEC kicks in on a Honda. So that is normal?

natronathon

yeah, ive always experienced it

Another_User

Weird. I feel better then.

blkZ28spt

This probably makes no sense and is totally wrong, knowing me, but it almost seems like what you are describing is the way that the revs seem to come more easily once you get it up there. The TB is open a fair amount to begin with, the engine is spinning at a decent speed and the exhaust is working to help empty the cylinders through scavenging rather than having to be pumped out. Just a random thought from someone who doesn't know much in comparison to the true techies.


Edit: It's a slow day today and I am borderline post whoring now that I look at it.

M6HuggerSS

i know EXACTLY what you mean.... but i didnt notice it until after my FLP headers set-up.... the car got much louder at 2100rpm to 2300rpm.... it was weird....

3K is when the cam really kicks in!