I FIND THIS PIC, OF THIS RMAGIC SINGEL EXHAUST

HAVE TO SOUND GOOD!!

NO HP INFO.


THE PICShttp://www.rmagic.net/new_item/8maf-yoko.jpg

http://www.rmagic.net/new_item/8maf-sita.jpg

sweet! Just need to find a Civic body kit to complete it.

Would this be considered an upgrade or a downgrade?

can i put it on the right side instead of left? hehehe

This would actually be great for weight savings. We do not have a true dual exhaust. It's just aesthetic.

really wondering on how it sounds

This would actually be great for weight savings.
Alex I truly hope you either mean that as a joke or that you are aware that it is weight savings over many items that helps and not just this. This argument has been beaten to death by the 2nd gen RX-7 guys. They actually believe that the lack of weight from 1 muffler is noticable enough to make you faster. Um, no. Some of them also say that this must flow better since there is no turbulence from a Y junction. Again, no. This is really only an aesthetics mod. There is absolutely no performance potential to be had from it. Just as with the 2nd gen RX-7, the RX-8 has the cutouts for 2 mufflers. If it is missing one, it looks like it is actually "missing" something. It looks wrong. That's just my opinion of course.

Theyshould cut off the rear rotor accent andmake that pipe come out from the center

Someone posted a pic of one that had done that. It didn't look near as cool as I thought it would. I actually thought it looked cheesy.

Does it reduce enough weight to make a performance difference in certain types of racing, no. If a one pound weight on a ten foot pole creates 10 pounds of torque at it's fulcrum, can you believe it is possible that weight at a distance from the center of gravity be exponential and have some effect on weight transfer in transitions, maybe.

weight is weight, and less of it is better IMO ;)

I know what you are getting at but this little amount of weight is still irrelevant. Yes, the farther out it is, the more of a difference it makes from a leverage standpoint. So you are saying you would rahter have all of your muffler weight on the left side of the car only rather than 8 more pounds but balanced out evenly? Also remember that when you turn, your car isn't turning on a pivot as on a rotating stand. It is moving forward as well. This applies more in a 2 dimensional world than a 3 dimensional one. Yes all weight still makes a difference for performance but this won't affect you at all. Yes the less of it the better. Just don't expect this to do anything to help you performance wise. It won't.

doesn't the JIC look like this anyway just two of them? on both sides

I FIND THIS PIC, OF THIS RMAGIC SINGEL EXHAUST

HAVE TO SOUND GOOD!!

NO HP INFO.


THE PICShttp://www.rmagic.net/new_item/8maf-yoko.jpg

http://www.rmagic.net/new_item/8maf-sita.jpg

Theyshould cut off the rear rotor accent andmake that pipe come out from the center
that would just look ugly as hell...

that would just look ugly as hell...

I'll go find a pic for you of it...you are right it is nasty

Theyshould cut off the rear rotor accent andmake that pipe come out from the center

^I agree.... if you're gonna do a single tip only, it might as well be centred.

What ifyou made the center tip shaped like a rotor sothat it would look almost like the rotor accent?

So you are saying you would rahter have all of your muffler weight on the left side of the car only rather than 8 more pounds but balanced out evenly?

The car in the picture is most probably a RHD and it makes sense for it to be on the left to balance out the driver. Had I designed the exhaust it would come out on the right.

Also, I'm not too sure about losing just 8 pounds... Have you weighed the cans on the RB, GReddy, HKS :eek:



btw: I lost a trophy spot by less than 1/10th of a second today. Will the difference make leaps and bounds of a difference, no. But I might be polishing a new trophy tonight had I picked up a couple of 1/100th of a second ;)

All I'm saying is had a one sided exhaust (for a LHD car) been on the market, I would have chosen it over the quasi dual exhaust I have now and it would have been for weight savings no matter how slim the pickins :D

Essential Speed had a single exhaust unit in RX Tuner magazine as well. Claimed the stock unit was 41 lbs., and there was 11 lbs. Nice 30 lb. saving, but personally I like the dual exhaust look, over saving 30 lbs.

i forgot where i read it before.... but the main reason for switching to a single exaust system from a dual setup is not to save weight..... well of course there will be some weight savings....but the main thing was something about the back pressure of the single exaust system in opposed to a dual setup.... it also had dyno runs from a S2000 and saying that all the single exaust systems gets more HP than any dual exaust system....

is it me or does the rear underbody look like carbon fiber in those pics, esp the 2nd one?

it looks like CF because it IS!!!...:)

Also, I'm not too sure about losing just 8 pounds... Have you weighed the cans on the RB, GReddy, HKS :eek:


Just put on my Greddy last week.

Greddy + Pipe => 34 Lbs.

OEM + Pipe => 35 Lbs.

I'd hit it. :)

Really all that would be needed to put this on the right side is cut off the hangers it comes with and re-weld some hangers in proper place... really simple job.

Off to find someone that can get me a price, and see if they can order it. :)

No thanks. THe RMagic cans WOULDN'T sound good. They are one of the loudest cans you can get for the 8 (JDM). From the pics I've seen of the 2 can setup, it looks cheap with the Ti tips (only) riveted onto the rest of the pipe. You can keep it!

Rotary Run Racing makes a single can/exit full Ti muffler that weights almost nothing. Not cheap either. I had posted stuff on it months ago. This all old news...

No thanks. THe RMagic cans WOULDN'T sound good. They are one of the loudest cans you can get for the 8 (JDM). From the pics I've seen of the 2 can setup, it looks cheap with the Ti tips (only) riveted onto the rest of the pipe. You can keep it!

Rotary Run Racing makes a single can/exit full Ti muffler that weights almost nothing. Not cheap either. I had posted stuff on it months ago. This all old news...

Got a link? For reference, I could care less on how it sounds (as long as it's under a certain dB at x feet). I care about weight vs cost for the unit. Having a cheap exhaust is fine with me since it's not a daily driver, and is sheltered most of the cars life.

--kC

Got search? :D

Couldn't find my thread, but the pic in this one is exactly the system I was talking about...
http://www.rx8club.com/showthread.php?t=8535&highlight=Single+exhaust

The search button is your friend.

is it me or does the rear underbody look like carbon fiber in those pics, esp the 2nd one?

yup www.rx8garage.net sells them

:lol: Damn, I got 0Wn3d. Gee, do a search (n00b?). ;)

Since you were so hot on the subject, I figured you have have some inroads as to US manufactuers, or suppliers selling Single Exit exhausts.

Theyshould cut off the rear rotor accent andmake that pipe come out from the center

i thik the same its mor direct exhaust i think its beter in the center.


this a posibol bak bumber that fits good this exhaust.

http://www.first-inc.co.jp/buddyclub/aero/rx8_img/images/rx8_i4_03.jpg

i send a link for information!! sambody read japan?
Rmagic link (http://www.rmagic.net/new_item/new11.html)

if you're going to do a single this is the way to do it!

....but the main thing was something about the back pressure of the single exaust system in opposed to a dual setup.... it also had dyno runs from a S2000 and saying that all the single exaust systems gets more HP than any dual exaust system....
I don't believe it. There was something else about each system tested that contributed to that result. 2 mufflers is less backpressure than 1, it is twice the muffling of one. If the Y junction is good and the pipes after it are larger than the main pipe, there shouldn't be an increase in backpressure. There won't be any additional power either though since the restriction is the main pipe. There was more going on in the S2000 exhaust test. A single muffler is not faster and the small weight difference will not make you faster either. However, it isn't necessarily slower either. A single exhaust is purely aesthetics.

I don't believe it. There was something else about each system tested that contributed to that result. 2 mufflers is less backpressure than 1, it is twice the muffling of one. If the Y junction is good and the pipes after it are larger than the main pipe, there shouldn't be an increase in backpressure. There won't be any additional power either though since the restriction is the main pipe. There was more going on in the S2000 exhaust test. A single muffler is not faster and the small weight difference will not make you faster either. However, it isn't necessarily slower either. A single exhaust is purely aesthetics.

But wouldn't the Y junction severely slow gas velocities the same as enlarging the pipe? I thought a fully tuned exhaust would maintain the gas velocity to help evacuate exhaust gasses.

And those who don't use the '8 for competition may not agree, but to me ANY weight savings is good thing. Ten pounds here, ten pounds there, it all adds up.

You can either keep the total area the same after the Y pipe or you can enlarge it. All of the engine tuning has already been done by this point so the area increase at this part of the exhaust is irrelevant. You can take the muffler completely off and not suffer any loss. You'd only gain about 4 peak hp from this method.

4 peak hp here, 6peak hp there...etc

its like the kilograms loos, 6 kilo here, + 8 k there.... the total adition makes the car go faster an lighter.

Someone posted a pic of one that had done that. It didn't look near as cool as I thought it would. I actually thought it looked cheesy.


Yeah, but did they fab the exhaust tip in the shape of a rotor so it looked like it belonged there instead of just cutting a hole?

Tim

Yep, it was rotor shaped tip. I thought I'd like it until I saw it.

4 peak hp here, 6peak hp there...etc

its like the kilograms loos, 6 kilo here, + 8 k there.... the total adition makes the car go faster an lighter.
4 hp is the max that you can get from a new muffler system. This is how much of a gain you would get if you had NO muffler. If you put one on, you aren't getting 4. Any difference in power between a single exhaust and a dual tip exhaust has to be within 4 hp of each other but in reality it is probably the same.

onli 4hp with exhaust is the max?? all of them ar max 4 hp?

onli 4hp with exhaust is the max?? all of them ar max 4 hp?

4 hp is the max. RB tested NO muffler (hence least restriction) and only got 4 hp. Their unit gives about 3 hp. They tested several other units and got only about 3 hp to actually losing hp. The claims that you can get 10-12 hp on this car from a cat back exhaust is absurd. With the whole exhaust system modified (race headers & midpipe/no cats) they were only getting like 10-12 hp.

why have 1 when i can have 2???

holly sh*t...
No thanks..
If a titanium, there is one name for me...The new Greedy.Hope to be good cause it costs 1700euros and soon it will ve in show cars...
Now worth the money only for weight savings...Only for look,style,sound and some hp....