Apexi ECV - it WORKS, quiet your exhaust down EASY
#27
RX-7 Bad Ass
Thread Starter
iTrader: (55)
That is an external cutout as well, it gives you straight out exhaust, which is DEAFENING on a rotary. And crazy hot exhaust coming out under the car, cooking stuff under the car.
Cutouts aren't the way to go unless it's a full on drag car or something, and in that case you shouldn't even be playing with cutouts but with straight exhaust.
Dale
#30
RX-7 Bad Ass
Thread Starter
iTrader: (55)
I ran it near where the parking brake cable comes through into the cabin. I did drill a hole there to route the cable through.
I have the controller between my seat and the center console, just tucked in there. I don't use it that often so it doesn't have to be readily available.
Dale
I have the controller between my seat and the center console, just tucked in there. I don't use it that often so it doesn't have to be readily available.
Dale
#33
#34
Full Member
iTrader: (5)
Join Date: Jun 2009
Location: SoCal
Posts: 103
Likes: 0
Received 0 Likes
on
0 Posts
Sounds like something I need... I always wake my neighbors up when I go to work in the morning...
What's the difference between the flange type and the pipe type? I'm guessing with the flange you can just bolt it where there is a connection between 2 pipes (after-cat obviously). Is there any difference in terms of reliability with the pipe-type vs. the flange-type?
What's the difference between the flange type and the pipe type? I'm guessing with the flange you can just bolt it where there is a connection between 2 pipes (after-cat obviously). Is there any difference in terms of reliability with the pipe-type vs. the flange-type?
#35
RX-7 Bad Ass
Thread Starter
iTrader: (55)
The pipe-type (or weld in) does take a bit more work to install, obviously a section of your exhaust has to be cut out and the pipe welded in place. The flange type requires no cutting or welding, simple bolt-in install. Both are really as effective I would think for muffling sound and for performance.
Dale
Dale
#36
Rotary Enthusiast
Any updates re this thing? especially on the back pressure / danger side of things? your engines still strong?
im going to make up some plates to go in between my exhaust flanges tonight to restrict my exhaust and hopefully make it quieter. (will be removed after i pass a noise test)
Im a little worried about the backpressure damaging something.
Im basically planning on making a couple of flange/plates with only a 1inch hole in the middle..instead of 3inch..
Any comments re this? Will a couple of 1inch recuding plates be OK? or should I drill multiple small holes?? any comments/ideas/info re this would be good.
im going to make up some plates to go in between my exhaust flanges tonight to restrict my exhaust and hopefully make it quieter. (will be removed after i pass a noise test)
Im a little worried about the backpressure damaging something.
Im basically planning on making a couple of flange/plates with only a 1inch hole in the middle..instead of 3inch..
Any comments re this? Will a couple of 1inch recuding plates be OK? or should I drill multiple small holes?? any comments/ideas/info re this would be good.
#37
RX-7 Bad Ass
Thread Starter
iTrader: (55)
Back pressure/danger? Really? I don't see ANY problems there. How are you going to blow your engine? The car is SO restricted with it closed that you build no boost and are making no power. It's not hurting anything.
You could make restrictor plates but that is gonna be a pain in the *** to get to and remove. The big idea with the ECV is it's simple to open and close at any time, you can close it to pull into your neighborhood, but have it open on the highway to have fun. Close it when you see a cop, open once he's gone.
Also, with a restrictor, you have a hot piece of metal in the exhaust you'd have to remove when you arrive at the destination. No thanks.
Dale
You could make restrictor plates but that is gonna be a pain in the *** to get to and remove. The big idea with the ECV is it's simple to open and close at any time, you can close it to pull into your neighborhood, but have it open on the highway to have fun. Close it when you see a cop, open once he's gone.
Also, with a restrictor, you have a hot piece of metal in the exhaust you'd have to remove when you arrive at the destination. No thanks.
Dale
#38
Rotary Enthusiast
^Yea, the only reason I was worried was because someone previously said in this thread they had an ECV and it caused them to blow their engine in about a week.. Ill stop worrying about that though
I cant pass my noise test with the ECV as its easily adjustable, which is not allowed.
Its a bit of a screw around, but im basically planning on putting the plates in, driving to my noise test - hopefuly passing the test. Then driving home and removing the plates, never to be needed again.
Im not going to be taking them in and out all the time, I just need to pass this test...once.
I cant pass my noise test with the ECV as its easily adjustable, which is not allowed.
Its a bit of a screw around, but im basically planning on putting the plates in, driving to my noise test - hopefuly passing the test. Then driving home and removing the plates, never to be needed again.
Im not going to be taking them in and out all the time, I just need to pass this test...once.
#39
Searching for 10th's
iTrader: (11)
I was kind of thinking about something like this for the circuit actually because my class is limiting me to 96db and they only measure the sound as you pass the control tower. So in between it would be nice to have the option to increase the exhaust flow a little bit. I guess it's either that or one of those super quiet high flowing mufflers that are really expensive.
#41
RX-7 Bad Ass
Thread Starter
iTrader: (55)
That looks more like a throttle body of some kind, the housing looks cast aluminum.
Vacuum control is interesting, the Cosmo actually had a butterfly valve in the muffler to shut off one port that was connected to vacuum, but it wasn't straight vacuum, it went to a solenoid valve that applied vacuum at specific times.
Also, not much "hassle" with the ECV, just pull a **** or push it back in. Done.
Dale
Vacuum control is interesting, the Cosmo actually had a butterfly valve in the muffler to shut off one port that was connected to vacuum, but it wasn't straight vacuum, it went to a solenoid valve that applied vacuum at specific times.
Also, not much "hassle" with the ECV, just pull a **** or push it back in. Done.
Dale
#42
Senior Member
iTrader: (7)
Join Date: Jun 2007
Location: aruba
Posts: 651
Likes: 0
Received 0 Likes
on
0 Posts
This is going on my to buy list and all the way on top of the list. The exhuast noise is killing mme .
The apexi is cheap, but would preffer a vacuum controlled system.
Which brand is that vacuum controller valve? Company?
The apexi is cheap, but would preffer a vacuum controlled system.
Which brand is that vacuum controller valve? Company?
#46
Radioactive Rotary Rocket
Join Date: Aug 2005
Location: Minneapolis, MN
Posts: 1,061
Likes: 0
Received 0 Likes
on
0 Posts
If you put this in rotary exhaust, it will most certainly warp and no longer open/close. Someone else has already tried it years ago. It needs to be made of a material that can withstand the heat of a rotary engine.
#48
RX-7 Bad Ass
Thread Starter
iTrader: (55)
I only use the ECV on interstate trips, MPG seems to be the same. Around town it's just like having an open exhaust, so it's as good or bad as my right foot .
Dale
Dale
#49
Rotary Enthusiast
has anyone tried this
http://www.dynomax.com/mufflers.php?muffler=vt
this is something i would love to test , but myh car is 4" exhaust , and very dificult to get these goodies for
but the drone is absolutely killing me
http://www.dynomax.com/mufflers.php?muffler=vt
this is something i would love to test , but myh car is 4" exhaust , and very dificult to get these goodies for
but the drone is absolutely killing me
#50
****** of broken keys
Join Date: Oct 2008
Location: austin
Posts: 47
Likes: 0
Received 0 Likes
on
0 Posts
has anyone tried this
http://www.dynomax.com/mufflers.php?muffler=vt
this is something i would love to test , but myh car is 4" exhaust , and very dificult to get these goodies for
but the drone is absolutely killing me
http://www.dynomax.com/mufflers.php?muffler=vt
this is something i would love to test , but myh car is 4" exhaust , and very dificult to get these goodies for
but the drone is absolutely killing me
Thread
Thread Starter
Forum
Replies
Last Post