Bisimoto Pulse Chamber, 2015+ Honda Fit (GK5 GK Jazz)
#61
#62
I was looking at the pictures again and just had a thought about the rubber hanger insulator you used... or specifically the way it's modified/mounted.
There is almost no de-coupling between the bisi and the car - only a few milimeters of hard rubber is what's separating them.
I can think of this as almost a solid connection once the exhaust moves so the two steel hanger press toward eachother.
This would likely transmit some serious vibrations/resonance through the trunk floor making it louder inside than it should be.
There is almost no de-coupling between the bisi and the car - only a few milimeters of hard rubber is what's separating them.
I can think of this as almost a solid connection once the exhaust moves so the two steel hanger press toward eachother.
This would likely transmit some serious vibrations/resonance through the trunk floor making it louder inside than it should be.
Last edited by vinylengraver; 07-30-2018 at 01:48 PM.
#63
I was looking at the pictures again and just had a thought about the rubber hanger insulator you used... or specifically the way it's modified/mounted.
There is almost no de-coupling between the bisi and the car - only a few milimeters of hard rubber is what's separating them.
I can think of this as almost a solid connection once the exhaust moves and the two steel hanger press toward eachother.
This will definitely transmit some serious vibrations/resonance through the trunk floor making it louder inside than it should be
There is almost no de-coupling between the bisi and the car - only a few milimeters of hard rubber is what's separating them.
I can think of this as almost a solid connection once the exhaust moves and the two steel hanger press toward eachother.
This will definitely transmit some serious vibrations/resonance through the trunk floor making it louder inside than it should be
#64
from my subaru days, a popular mod to "tighten things up" came in the form of 95A hardness polyurethane hangers
https://www.oakos.com/KB-011.htm
the side effect of making the car more firm/tight did come at the cost of added nvh. Rick, would you say that above nickson hanger ... is harder than stock? I'm wondering if something more "mushy" or rubbery .... may do it for you, and further insulate and reduce nvh ... like this?
https://www.autozone.com/emission-co...06_754773_5060
(or even better, if you could source some bigger/longer super wimpy oem ones off another car)
https://www.oakos.com/KB-011.htm
the side effect of making the car more firm/tight did come at the cost of added nvh. Rick, would you say that above nickson hanger ... is harder than stock? I'm wondering if something more "mushy" or rubbery .... may do it for you, and further insulate and reduce nvh ... like this?
https://www.autozone.com/emission-co...06_754773_5060
(or even better, if you could source some bigger/longer super wimpy oem ones off another car)
#65
from my subaru days, a popular mod to "tighten things up" came in the form of 95A hardness polyurethane hangers
https://www.oakos.com/KB-011.htm
the side effect of making the car more firm/tight did come at the cost of added nvh. Rick, would you say that above nickson hanger ... is harder than stock? I'm wondering if something more "mushy" or rubbery .... may do it for you, and further insulate and reduce nvh ... like this?
https://www.autozone.com/emission-co...06_754773_5060
(or even better, if you could source some bigger/longer super wimpy oem ones off another car)
https://www.oakos.com/KB-011.htm
the side effect of making the car more firm/tight did come at the cost of added nvh. Rick, would you say that above nickson hanger ... is harder than stock? I'm wondering if something more "mushy" or rubbery .... may do it for you, and further insulate and reduce nvh ... like this?
https://www.autozone.com/emission-co...06_754773_5060
(or even better, if you could source some bigger/longer super wimpy oem ones off another car)
#66
I have a few of these sitting around in my garage ..... I will end up using 1 ... and I have a feeling ... 1 of the 3 may end up in Rick's hands ........
(after I pick up an rv6 down pipe, if things get too noisy, I'm ready to combat that with these helmholtz resonators)
(after I pick up an rv6 down pipe, if things get too noisy, I'm ready to combat that with these helmholtz resonators)
#68
Just listed the Bisimoto here if anyone's interested...
For those who come upon this thread at some point on the future, the following is provided:
My Poser Build Thread...
The Sound Deadening Campaign - This is where I go thru dramatic and controversial (?) efforts to reduce the interior sound levels. They were successful but in the end not enough for me to keep the exhaust.
The Dying Vacuum Cleaner Thread - AKA: An Open Letter To Ken - This is where I come to acceptance (5th Stage of Honda Fit Ownership) on the non-viability of the exhaust (for me). I also quote Whitney Houston...
Additionally I go thru my three reasons for going back to the stock exhaust, which were:
1) Interior sound levels were still not as low as I wanted for a daily commuter car.
2) As some voices (Kenchan) repeatedly sought to mercilessly hammer home to me and anyone else who dares to put an aftermarket exhaust on a CVT, it just doesn't sing the same song as with a manual, or even a non-CVT autotragic.
3) Last but not least, I didn't like being that guy.
Just change the lyrics from "fat guy in a little coat" to "slow car with a loud exhaust"...
Alternately replaces the words "fat, drunk, and stupid" with "slow and loud"
Please understand that I do not grieve any Fit owners out there CVT, 6MT, HKS, Bismoto, or otherwise for their choices. As a staunch Liberterian, I firmly believe what you do with your body and your stuff is your business and nobody elses. Ask my opinion and I will seek to speak the truth in love, often thru humor, but not with malice. I also believe that children are our future, and that we should teach them well and let them lead the way...
#71
Rick, if I were in your shoes and I had to start over .... at one point I considered going the muffler delete/custom route. Here is what I envisioned for myself:
Exhaust would have looked something like this:
credits go to usdm/kevin = https://www.fitfreak.net/forums/3rd-...ml#post1397979
And I would have added a helmholtz resonator to it, to combat the fart can/raspy sounds
the above 2 items, in theory .... may cost less than a bisimoto (or any other axleback exhausts out there for that matter)
Exhaust would have looked something like this:
credits go to usdm/kevin = https://www.fitfreak.net/forums/3rd-...ml#post1397979
And I would have added a helmholtz resonator to it, to combat the fart can/raspy sounds
the above 2 items, in theory .... may cost less than a bisimoto (or any other axleback exhausts out there for that matter)
Do you have a link for buying that axle back?...
Thanx in advance!
#78
I did weigh it next to a buddy club titanium exhaust. I used a bathroom scale so .... it wont be accurate
buddy club was about 2.5 lbs
bisimoto was a little under 1 lb heavier
(again, my #s are 100% accurate, as my bathroom scale sucks)
buddy club was about 2.5 lbs
bisimoto was a little under 1 lb heavier
(again, my #s are 100% accurate, as my bathroom scale sucks)
#79
Any idea how that compares to the oem axleback?