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What type Muffler on a FI set up?

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Old Dec 11, 2011 | 12:47 AM
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Default What type Muffler on a FI set up?
We run a Novi 2000 with a 370ci what type of mufflers you guys running in the bigger power set up?
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Old Dec 11, 2011 | 01:57 AM
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Guys with the bigger power don't run mufflers. Mufflers just add back pressure.

But to answer your question, on a turbo charged car, a straight through muffler is always recommended. No more back pressure than just a straight pipe would be in it's place.

The same is going to hold true on a supercharged or NA car as well. Back pressure is bad when the ultimate goal is making power.
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Old Dec 11, 2011 | 02:43 AM
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I run a magnaflow race muffler, straight through
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Old Dec 11, 2011 | 08:57 AM
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If you can't see through it, it will cost you power. Corsa, if you can afford it. Magnaflow would be my second choice. I measured 4psi of back pressure on a dual 3" Flowmaster setup. That was at about 525 engine hp.
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Old Dec 11, 2011 | 09:11 AM
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Originally Posted by my first GTO
We run a Novi 2000 with a 370ci what type of mufflers you guys running in the bigger power set up?
Any reason you couldnt pick a muffler that you like the sound of, then use a cutout in front up after the collectors?


I noticed on mine setup, front mount turbo, with the cutout closed going through my dual spintech setup, 4psi less boost and it was def a turd.


But for the street, it was about perfect, if i needed the extra umph, id just open the cutout.

If i was in your shoes, thats how i would do it. best of both worlds, the sound you want for the road and the performance you need at the strip

Oh, and again, congrats on your latest track outings man! That thing is getting down!
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Old Dec 11, 2011 | 09:18 AM
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whats a muffler? lol I have not ran one in years. on any of my rides lol.
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Old Dec 11, 2011 | 09:24 AM
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I run 2, people can barely hear it pull into the parking lot.


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Old Dec 11, 2011 | 09:55 AM
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what kit you running slugish?
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Old Dec 11, 2011 | 10:22 AM
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Originally Posted by Turb0Z28
what kit you running slugish?
Well, I'm no fabricator (OK yes I am) but that looks custom to me.
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Old Dec 11, 2011 | 11:24 AM
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looks like a modular turbo down pipe. With a vband on the end.
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Old Dec 11, 2011 | 12:02 PM
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See we run on Saturdays and it's a muffler must day ....thanks for your input..
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Old Dec 11, 2011 | 01:00 PM
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Originally Posted by Turb0Z28
what kit you running slugish?
Originally Posted by SATAN
Well, I'm no fabricator (OK yes I am) but that looks custom to me.
This, built by me.
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Old Dec 11, 2011 | 02:01 PM
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Originally Posted by Turb0Z28
looks like a modular turbo down pipe. With a vband on the end.
You came to that conclusion after seeing a whole 2" of the down pipe? LOL
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Old Dec 11, 2011 | 05:13 PM
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Originally Posted by SATAN
You came to that conclusion after seeing a whole 2" of the down pipe? LOL
that the only part i could see looks just like mine lol
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Old Dec 11, 2011 | 06:46 PM
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I have a hooker max flow - strait through muffler on my car. It works quite well
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Old Dec 11, 2011 | 07:44 PM
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Originally Posted by SATAN
You came to that conclusion after seeing a whole 2" of the down pipe? LOL
If you look close the vband is only tacked on, that would be a crappy kit sent out incomplete . Lol
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Old Dec 11, 2011 | 08:05 PM
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Originally Posted by Sluggish
If you look close the vband is only tacked on, that would be a crappy kit sent out incomplete . Lol
What kind of muffler is that bigger one?
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Old Dec 11, 2011 | 09:00 PM
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http://www.summitracing.com/parts/DTC-776-14402/
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Old Dec 12, 2011 | 10:14 AM
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If you run a muffler, make sure you have a cutout. I loose 70rwhp going through a spiral flow.
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Old Dec 12, 2011 | 10:58 AM
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If it must be a muffler.... go with Spintech.
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