rx7 punk

what do u guys think about going dual cherry bomb glasspacks, i lie the straight through design but im not sure if it'll sound good on a 7

xfeastonarsex

iTrader: (5)

cherrybombs are ricer stuff... only cars I have seen them on are hondas...

rx7 punk

well then forget the cherry bombs what about plain dual glasspacks

Ocelot

Are you looking for performance or crappy ricer sound here?

Cory Simpson

I'm pretty sure that the rotary engine's exhaust pulses will blow the packing out of a glass pack.

And it will probably sound like crap, or more like a pissed off swarm of bee's going down the highway.

You could try it and tell us what you think of it, but I would just use muffler with baffleing.

Icemark

On a Non turbo, glass pack mufflers life can often be measured in hours or days.

I would avoid any sort of glass pack on a non-turbo

rx7 punk

i was just wondering because my friend just put a set on his 85 rx-7

mazdaspeed7

I had them. They sounded good for a day, then started going downhill. Within 4 days, the packing was completely gone. What a waste.

TornAcl90RX7

i have glass packs (cherry bombs) on a 90 rex i bought a few months ago an i have already gottn 2 tickets for "faulty mufflers". they are loud as hell!! do you like hearing your stereo on the interstate ??

olliecup

What about you using a glasspack as a presilencer? I have 3 inch piping from the cat back and just some generic straight through muffler but its loud even at idle and was thinking about using a glasspack as a presilencer.

Icemark

On TornAcl90RX7 his loudness is probably from them being burnt out.

On olliecup, if a glasspack burns out as a muffler 5ft back from the engine, how long do you think it will last if it is 2 or 3 feet from the engine? maybe an hour or two?

mazdaspeed7

Thats exactly how I had mine. They DO NOT last. If you want a presilencer, get something SS or ceramic packed. If youre on a tight budget, the Dynomax Race Magnum welded and bullet mufflers at jegs are ceramic packed, as are the Hooker Maxflow mufflers. Magnaflows cost a bit more, but are all SS.

SureShot

My NA had all steel "turbo pack" silencers with glass pack bombs at the back.
Glass will melt in the silencer (ex-cat) location but holds up OK back at the end.
Check out the pictures & sound clip links in my sig below.

truespin88

My NA has dual glasspacks of some sort... I'm not sure which kind... but it only sounds slightly ricey below 3k... after 3k it sounds like a small airplane.


EDIT: Mine sounds WAY smoother than that guy's. Mine does not cackle or pop.

SureShot

I'm guessing you are runnung the stock "iron box" exhaust collector.
Mazda designed it to detune & soften the sound.

Headers make loud control more of an issue.
Those pops are visible flames at night..

rxspeed87

ok whats the difference between glasspacks and the straight through muffler?

it seems a lot of aftermeket mufflers are straight through design but ppl would love to get there hands on them but when it comes to glasspacks everyone calls rice

also glasspacks where put a lot of times on old hotrods please don't tell me a 64 GTO with a setup of glasspacks on it is rice.


but yes I agree packing won't last long on glasspacks

and

Ted Webster

Apexi makes a decent dual package. I have an RB street header w/ a pre-silencer and N1 duals. Without the baffles that get inserted into the ends of the mufflers my N/A is LOUD!, but with the inserts I can listen to the stereo fine. The whole system is straight through and its designed to hold up to the 13b's high temps.

truespin88

Sureshot: Yes I'm still using the stock manifold box. I don't have the cash for a header and presilencer just yet.
My exhaust is not stock, however, as I have noticed most of it is welded slipfit piping and I think the stock exhaust on most Japanese cars (in my experience) is bolted together, usually in sections.

Cory Simpson

Because most of the time you see glass packs (or at least when I see them), they are on like CRX's, and they sound like **** because the engine doesn't have the exhaust to use a muffler that is that big, and flows that much.

But the rotary will keep up with it, just like a V8 will to. When you have the exhaust to use a bigger, better flowing muffler. It sounds better.

But the rotary already sounds like a jetson's car, and this will just amplify that

Mephis

i have one very long word in reply with topic, NOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOO!!!!!!!!!!!!!!!!!!!!!

rxspeed87

Cory Simpson

that is why you buy different size glasspacks




and why is it that everyone says no glasspacks will sound like ***? you can get them with stainless packing for reliability


but let me ask you this
what is the difference between one of those vs the apexi N1?

88ROTARY

AND MY REPLY WOULD ALSO BE NOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOO!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!PLEASE NOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOO!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!! GOD WHYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY YYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY!!!! !!!.man they make plenty of mufflers out there, i know glass packs are cheap but they will make your car sound like **** and people will look at your car that way.i just ordered a pair of draggers for my seven do somthing like that.

vaughnc

Glasspack mufflers are OK and will give you a nice raspy sound on a turbo II with a primary cat and downpipe (turbo II) or partial headers on an NA. If you remove the collector & go full headers or straightpipe, it will attract every cop in town.

I believe traditional glasspacks won't work without being destroyed by the higher heat output of a rotary engine.

hpram99

rotfl

anyway, this is good stuff to know. Late winter I will be removing the precats and main cat from my n/a and runnning stock mufflers.. I like to do the direct OPPOSITE of ricers.. they get catbacks, I get everything BUT that.

vaughnc

if you want to go full headers (no collector) & a fully open exhaust, Racing Beat is the ONLY way to go for a tollerable noise level & exhaust note. Their full end to end exhaust system comes with a pre-silencer and high flow good muffling mufflers.

It looks, sounds, & performs MUCH!!!! better than OEM. Lots of eye candy on the molded, engraved, & polished exhaust tips as well.