Mufflers, P9 Options

[Randal]

Where do you find P9 (phase 9) mufflers that so many people run?

[nine14cats]

Hi Randal,

I bought mine at Jerry Woods (Smart Racing). Besides really waking the engine up, they are very light ~9lbs for the 2 of them that I am running. I believe you would only need 1 for a smaller 4 cyl unless you go big....

Bill P.

[SirAndy]

Where do you find P9 (phase 9) mufflers that so many people run?

i thought you were looking for a B10 instead ...

(IMG:style_emoticons/default/laugh.gif) Andy

[Randal]

thought you were looking for a B10 instead ...

What is a B10 Andy?

Actually what I want is a muffler that doesn't zap power and is quiet enough to satisfy the PCA folks. There are cars running the F9 that don't get busted, so hence the search.

Of course if there is something better/lighter/cheaper (B10) out there tell me about it.

BTW I liked the flowmaster, but the short racing version is louder that PCA will allow.

I don't know about the other flowmasters, but maybe I'll call them again.

Maybe the folks down in Fresno won't car about noise????

[ChrisFoley]

Is this it? I think Phase 9 and Quiet Can have been renamed to Stage I & II

Phase 9 silencers are available on the west coast, like at Smart Racing.
My Stage I muffler, nearly the same, is only available with a complete exhaust system right now.

[SirAndy]

What is a B10 Andy?

that's what *YOU* called the P9s when you couldn't remember the name, remeber?

(IMG:style_emoticons/default/laugh.gif) Andy

[Randal]

Andy-

You crack me up Andy, but thank God I said "Force 10!" For a second there I thought I had lost it..


Hey Chris-

Have you ever ran a db level test on your muffler/silencer on a Type IV?

[ChrisFoley]

Hey Chris-

Have you ever ran a db level test on your muffler/silencer on a Type IV?

I have race track db sound readings, taken according to SCCA specifications.
The numbers don't tell much about how loud it will be on the street. Typically having just the Phase 9 is too loud for a daily driver, but fine for the occasional joyrider.
My complete system easily passes the heavy sound restrictions for PCA Club Races at Lime Rock. (89db)

[ChrisReale]

I think there is a guy who drives a 914 (kicks ass, like TTOD) from Sacramento that has a Phase 9 on his car...

[Randal]

When I get my new engine I'm going to use Chris's header and muffler set up as Jake is pretty clear on how well it works.

In the mean time spending $325+ on a P9 doesn't make a lot of sense to me, given that all I want is maximum power and a quiet muffler that won't draw GGR complaints.

I bought a series 50 Flowmaster today that I'll be installing before this weekend. They say that there is no power loss, and Demick, who is a good mechanical engineer, uses a 50 (or maybe a 60) so I'll jump on that bandwagon as well.

The series 50 has three internal chambers that are meant to reduce noise as opposed to the single chamber I had previously. Hard to believe that 3 chambers wouldn't reduce power in some way, but that is what they say. Guess I'll know on Saturday.

[Randal]

The 50 series Flowmaster is now installed. I'll post a picture tomorrow.

I could tell when I started the car that I had regained power, especially over my old street muffler that I'd been forced to use to control sound.

The Flowmaster technical people say their product actually increases power over a straight pipe, and while originally skeptical, I'm turning into a believer.

[SirAndy]

The Flowmaster technical people say their product actually increases power over a straight pipe, and while originally skeptical, I'm turning into a believer.

the flowmasters were pretty bad on the test-data posted here a week ago or so.
that was on a different motor tho (6 IIRC), but i recall the flowmaster being worse than the stock banana ...

(IMG:style_emoticons/default/idea.gif) Andy

[Randal]

Let's go dyno test the unit next week.

I know what it was before with an open Supertrapp so we can compare.

We could also run a dyno test on the shorter (loud) unit.

That would give us four results:

A. 2.0 with Supertrapp with 8 disks
B 2.0 with Supertrapp totally open
C 2.0 with 10" Flowmaster
D 2.0 with Series 50 Flowmaster

Where is the best/most cost effective place to go?

[Trekkor]

I'd like to see that, maybe run mine, too?

KT

[SirAndy]

Let's go dyno test the unit next week.

i'm in if i can throw my car on there as well. i know brad must know of a place.

i *think* it was around $60 per hour ...
(IMG:style_emoticons/default/boldblue.gif) Andy

[Demick]

I bought a series 50 Flowmaster today that I'll be installing before this weekend. They say that there is no power loss, and Demick, who is a good mechanical engineer, uses a 50 (or maybe a 60) so I'll jump on that bandwagon as well.

Actually, I have a 40 series delta flow muffler. I wanted to put on a 50 series, but it was too long to fit with my collector. The delta flow 40 series is mellower than the regular 40 series. The 50 series is one step mellower than what I have. You shouldn't have any sound issues with the 50 series.

Demick