KRMRX8
10-18-2009, 11:44 PM
After looking at the underside of this newer car, 40th anniversary edition, I am wondering if anyone has had success installing an electric cutout for the exhaust anywhere positioned after the cat. A search yielded nothing.
Thanks!
dozer
10-18-2009, 11:57 PM
yes. i think so..im drunk
KRMRX8
10-24-2009, 01:58 PM
No one has used the Q Tech electric valve cut out on their exhaust?
kersh4w
10-24-2009, 02:00 PM
someone had the badlandz electric cutout.
he dyno'd 10whp with the cutout open. so its roughly equivilant to a catless midpipe. downside is that it dumps straight after the exhaust manifold, so it sounds horrible. the upside is that you can turn it off, unlike a midpipe.
8upbad
10-24-2009, 03:02 PM
Ive never heard of this. Is it for sound or less restriction? I'm confused.....and getting drunk =P
8upbad
10-24-2009, 03:04 PM
a catless midpipe is good for 10 hp?!? Idk, I have read that intake and full exhaust only gets you about 10 hp..... or less.
mysql101
10-24-2009, 03:29 PM
people don't realize how raspy and horrid the rotary sounds at low and mid rpms without the exhaust system. Cutout without a turbo doesn't sound useful especially since they end up leaking.
KRMRX8
10-25-2009, 09:26 AM
Ive never heard of this. Is it for sound or less restriction? I'm confused.....and getting drunk =P
Thanks for the info. The electric QTech exhaust cutout, essentially a Y pipe with a butterfly valve that opens from an electric motor, to by pass the rest of the exhaust, has been used on thousands of cars and I have never heard of it leaking. It uses top end materials,
I agree that it would have to be mounted after the cat, and that would likley only allow maybe 5 AWHP, if the oem muffler inhibits that much HP/torque (guessing on the values there) An un-muffled rotary is a terribly loud but wicked sounding screamer. But considering the price of the Qtech cut out , in any size 2.5" - 3+",
I thought it would be a deal, to use on those occasions where the extra freed up HP would be useful. But since no one here has ever used it, there must be some drawbacks.
kersh4w
10-25-2009, 08:59 PM
5 awhp?
since when did you get all wheel drive in your rx8?
if you are going to get a cut out, put it before the cat, and open it when you really want to scream.
after the cat you'll get 3whp, maybe.
10whp is for a 3" catless midpipe alone. add 3whp for a 3" catback and maybe another 3whp for an intake. still not a lot of whp for the money.
trustbuddy
10-26-2009, 08:02 PM
someone had the badlandz electric cutout.
he dyno'd 10whp with the cutout open. so its roughly equivilant to a catless midpipe. downside is that it dumps straight after the exhaust manifold, so it sounds horrible. the upside is that you can turn it off, unlike a midpipe.
that would be me.
http://www.rx8club.com/showthread.php?t=176484
oh, and it's still up for sale...:mdrmed:
Juice
10-26-2009, 09:21 PM
Yeah, absolutely no point in putting it after the catalytic converter. All you are going to do is make noise. Put it before the cat and at least you get a little bit of power with the noise.