duanebmorg

I like the sound. Do I understand correctly that everything is stock and only the muffler and tip has been replaced?

Boergy

iTrader: (2)

HY!

Yes... all other parts are original, my SC have 3 converters ( i think california edition )

RX7 RAGE

iTrader: (18)

RMM 3" downpipe to 3" y pipe which splits to 3" piping all the way to the 3" vibrant performance mufflers with 4" tips.

duanebmorg

Thanks Boergy! I am in California and am hesitant to mess with anything that won't pass our strict Smog Laws, but do want to free things up a bit.

Duane

Boergy

iTrader: (2)

HY Duane

it´s not so easy in california to modify?

I install next time as the 3rd catalytic a big 200 cells metal catalytic and a 3" middle pipe. after this, i make a vid and next step the IMF Header and the 2 main catalytics are removed. after every step, i do a emission test to see the values i post all this informations in my SC400 thread

cjsc400

I know this doesnt belong on this thread im still tryin to figure out the site. I have no tailights but I have brake lights please someone help me I would do anything but suck another mans stick to fix the problem.

duanebmorg

California has the most restrictive smog laws in the U.S.A. Cars made in the US are made as 49 state models and Ca. models. If you replace the catalytic converters, they have to be Ca. only parts. FlowMaster makes Ca. only free flowing cats. Technically you can replace anything after the cats and still pass Ca. emission tests. I have seen lots of Ca. cars in this forum with everything replaced from the cats back. None of them have said what happened at their last smog test. I'd like to hear from them.

As I understand it, the cats are high up right after the manifold. The center canister and the two behind the rear axle are resonators designed for the quality of sound. I don't know what is really inside, or how restrictive they are. What concerns me are the many twists and turns, and the squashed pipes under the axle. I would like to free all that restriction up as you intend to do also. Which leads me to pipe size. If the pipe size is too large, high end horsepower is gained, but low end torque is lost. Smaller pipes retain low end torque. For most street and highway driving low end torque will make a car much faster than high end horsepower. The SC400 V-8 has good low RPM torque. What I understand from this forum is the optimum pipe size is 2 1/4". 3" pipe will give you the most H.P. on a dyno test, but will be slower on the street.

Now back to Ca. smog for a quick comment. Recent changes have made cars that easily passed before fail now. Mechanics are recommending changing all filters before a test. Even the smog testers tell you to drive down the freeway for 20 minutes or more to warm the car up really hot. Cold cars fail, hot cars pass. Even a badly sealed gas cap will make a car fail. If I was modifying a recent model car designed for the new regulations, I wouldn't worry. But modifying a twelve year old car with a 20 year old design, concerns me.

Can we hear from California owners that have had recent smog tests?

Boergy

iTrader: (2)

From my friend his 92 SC300 with Top Speed Exhaust

http://www.youtube.com/watch?v=wJaHS...layer_embedded

http://www.youtube.com/watch?v=qPXpz...layer_embedded

greets from Austria

paulwd

I thought I should add mine since I finally got some video of the Soarer.

Blown V8 with Rush headers and 2 1/4 pipes, twin high flow cats , balance pipe and a couple of free flow no name rear mufflers.





http://www.youtube.com/watch?v=_USP2p5TyYs

dAng_bAy

I like RS-R Ex-Mag...! I think if we all email RS-R about making the Ex-Mags for the SC's, they may consider making some...

http://www.rs-r.com/store/pc/contact.asp

Bott63

What's your exhaust setup on this? I like the sound!

saleens281

The info on his youtube video just states "mufflers and resonator delete & bosal tips". Thats all. It sounds pretty good.

k7q

iTrader: (37)

what kind of rims are those??

paulwd

The rims are Japanese Wald, mine are 18/8 and 18/9 with a 35mm offset, and they clear big brakes.

TURBO819

iTrader: (5)

Replica Boost Logic 4" Downpipe & Midpipe & 4" OBX Universal High Flow Resonator Pipe With Magnaflow 14834 Race Series Mufflers




OBX Universal High Flow Resonator Pipe (4" to 4" x 26.50") Long. I removed 2" off of each of the ends and had a 4" V-Band added to one end and a 4" to 3" Stainless Steel Reducer which was connected to a Transition Y-pipe 3" Inlet & Duel Outlet



Before 5" was removed. See rear section of Mid Pipe


About 5" was removed from the MidPipe and a 4" V-band was added.




MidPipe & Resonator & Y-Pipe



Plans for the rest of the Exhaust.










Exhaust Clip. http://www.youtube.com/watch?v=wOVNP..._order&list=UL