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-   -   big mufflers on a gen 1 (https://www.rx7club.com/1st-generation-specific-1979-1985-18/big-mufflers-gen-1-a-591154/)

7rulesfl 10-26-06 08:03 PM

big mufflers on a gen 1
 
yes or no?

twinkletoes 10-26-06 08:07 PM

No imo

perfect_circle 10-26-06 08:08 PM

f0 che3zzy

mazdaverx713b 10-26-06 08:17 PM

NO. *gives the thumbs down. shakes a box of uncle ben's*

kgray 10-26-06 08:20 PM

3-3.5 inch tip. nothing more.

GavinJuice 10-26-06 10:03 PM

dump pipe is THE best look IMHO. I've seen some bomb rx's with dump pipe mufflers and they look amazing. Even Duals on RX-2's........now that is somethin'

Tranquil 10-26-06 10:06 PM

...my muffler has a 4 inch tip...

steve84GS TII 10-26-06 10:12 PM

Behind a rotary its not the size of the muffler that matters,its the quality.

Regardless of the size or brand,if its any fiberglass packed straight through muffler or any cheap baffled type muffler.......,it wont last long with the rotaries extreme heat and strong exhaust pulses/noise going through it.
Typically for an exhaust system,anything over 2.5" is considered overkill on an N/A rotary,and will just increase noise while decreasing ground clearance.Turbo engines can go as big as you want with the exhaust,but 3" will usually be fine for most street vehicles.

Stainless packing material should be considered mandetory to prevent blowout or meltdown.The body/can can be mild steel,but it should be thick and beefy to reduce resonance.
The RB/Primaflow muffler is a perfect example of a properly designed,robust rotary muffler,although many claim its too restrictive.The StreetPort version of that muffler has larger pipes and has flowed enogh air for my 13BT to pump 14psi of boost and make about 300HP. Its lasted for about 5 years now with no signs of failure.....they are pricey,but WELL worth it.

kgray 10-26-06 10:17 PM

i had 2.5" dump pipe with magnaflow prescilencer for a week. really couldnt drive my car tho. wish i had video of how loud it was. could not go anywhere near 3k if i wanted to hear.

Mazda12AGS 10-26-06 10:25 PM

No thats a bad ricer

Rx-7Doctor 10-27-06 12:29 AM

Exhaust size is relevent to Hp output. Too big of piping and exhaust will hurt performance on low Hp applications. In this case, " Bigger is not alway's Better".;)

DriftFB 10-27-06 02:24 AM

^What are you talking about? 6" piping on my stock 12A made my car outrun a helicopter and a 1/2.

d0 Luck 10-27-06 02:27 AM


Originally Posted by perfect_circle
f0 che3zzy

he is right. we root for you doing a big muffler! :icon_tup:

Yark79 10-27-06 01:20 PM

What exactly is a dump pipe?

Directfreak 10-27-06 01:36 PM

As you can see, the original thread starter is a noob trying to get a post count up. Otherwise this would have been a more specific question besides "Big" muffler.

Lock.


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