How much vibration is everyone getting? I might need to try disconnecting my exhaust mount that attaches to the transmission and see if that makes a difference. I'm just getting a lot of vibration, and I can't figure out why. Nothing is making contact with the chassis. It is particular bad on deceleration or when going slow like sub 40mph, but having higher revs like 3-4k.
The exhaust is louder going from the old setup with the stock frontpipe to this setup with the high flow Berk frontpipe, but I feel like things should be much smoother. I am driving the family's Accord with a K24, and it is butter smooth. My car was fairly race-car before, but it really went up a few notches, and I just don't know what to look for.
The stock fuel pump has balancing shafts, so I don't know if that is leading to some vibration, the driveshaft is something, the exhaust is something, the transmission mount being hammered is something, etc. and is all adding up or if it is something problematic in my setup.
https://www.k20a.org/threads/oil-pum...-posts.215233/
Quote:
Stock oil pump:
My car was very nice to drive, great control over the front tires with no wheelhoop and the engine wasnt moving around anymore under WOT or when shifting gears. Vibrations? Haha no, what do you mean?!? Well I could feel a liiiittle vibs in my seat. I had to concentrate to feel it. Life was good, sunshine everyday!
A side note: I have access to a dyno, so I have tuned my car many times, to the dyno we have this wireless Logitech keyboard, and on every run I put it on top of the dash, in the middle of the car, just below the windscreen. It stays put there, no moving, or rattling or nothing.
Changed oilpump to k20a2:
-well, limited to stock rods I have set the revlimit to 7600rpm. Gained 6hp@6nm with this pump up top. First run I did I got scared, I heard and felt strange things, like now something is braking, but the second after I realisted that I had a Logitech keyboard jumping up and down on my dash. Every vibration made it jump up and hit the glass in the windscreen. So I put the keyboard in the soft place of the passanger seat. But the noises were everywere, rattles, sounds, vibrations. It feels like my car is braking apart.
I still drive with this setup, I hate my car. My wife doesnt drive it anymore. My youngest boy now loves it, he have found out a spot in the rear seat where you can, with the right technic, if you open your mouth and shape the rightsized hole with your lips, a sound will appear. Almost like when you blow air down in a empty beerbottle.
K20's doesnt have this kind of problems with stiffer mounts.
So in my world, a k24 should only run without the balance schafts in a REAL race car. That 6horsepowers I would gladly find somewhere else. They werent cheap either. Took me 8hours and cost me almost $400.
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