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Joined: Aug 2001
Posts: 17,248
CEG road warrior
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CEG road warrior
Joined: Aug 2001
Posts: 17,248 |
Originally posted by ZetecRacing:
http://www.dynomax.com/mufflers.stm
and look ultraflow (my muffler) listed on their mufflers page.
guess what dynomax DOESN'T MAKE GLASS PACKS 
Edit one more to go till 2k posts
That is funny because in the Summit catalog it says the ultra flow has fiberglass(glass pack)in the muffler.  
Hector
2003 Rally Red Mitsubishi Evolution VIII
257HP/259TQ
2005 Lapis Blue Mazda 6s
RET: 00 Cabernet Red Ford Contour Zetec ATX SUPERCHARGED
160HP/141TQ
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Joined: Jul 2000
Posts: 3,465
Hard-core CEG'er
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Hard-core CEG'er
Joined: Jul 2000
Posts: 3,465 |
Originally posted by LoCoZ2.0:
That is funny because in the Summit catalog it says the ultra flow has fiberglass(glass pack)in the muffler.
*cough* *cough* look on their site... EVERY dyno max has that  so do alot of the magnaflow mufflers too basicly any straight through muffler has fiberglass in it.
2003 Subaru WRX some mods
Even if you don't have the answer, you certainly have to admire the problem.
aka ZetecRacing
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Joined: Mar 2003
Posts: 202
CEG\'er
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CEG\'er
Joined: Mar 2003
Posts: 202 |
was there any substantial gains???? i thought goin dual on a 4-cylie lowered the back pressure too much and was actually detremental to acceleration and the low end torque but if you say it works great, ill get one !!!! where did you attach it??? down pipe back,cat back???
Wht 98 Zetec Vct
2 12'MTX thunder 3000, logic 500W amp,8 interior speakers:2 sony mobile Es 6*9 250W,2 JVC 6*9 200W Sony 208W cd receiver,Streetglow blacklight interior trim
C.A.I. transgo shift kit,
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Joined: Dec 2002
Posts: 249
CEG\'er
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CEG\'er
Joined: Dec 2002
Posts: 249 |
I haven't heard yours yet, but according to my inlaws, and the kids at school i have a very loud car. To the point that they are concerdering takeing up money so i can put a quieter exusht. But thet havent so they most be getting use to it. I think thats what strait pipeing doses. Oh well i like it. 
Go Army My new home for awhile.
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Joined: May 2001
Posts: 2,291
Hard-core CEG'er
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Hard-core CEG'er
Joined: May 2001
Posts: 2,291 |
Originally posted by CrispRide:
was there any substantial gains???? i thought goin dual on a 4-cylie lowered the back pressure too much and was actually detremental to acceleration and the low end torque but if you say it works great, ill get one !!!! where did you attach it??? down pipe back,cat back???
Not with the SVT exhaust on a Zetec. I actually dynoed before & after. There was no loss. Gains were minimal (1-3 hp at most), but at least it gained something. 
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Joined: Sep 2002
Posts: 3,632
Hard-core CEG'er
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Hard-core CEG'er
Joined: Sep 2002
Posts: 3,632 |
Originally posted by D Davis:
Originally posted by CrispRide:
was there any substantial gains???? i thought goin dual on a 4-cylie lowered the back pressure too much and was actually detremental to acceleration and the low end torque but if you say it works great, ill get one !!!! where did you attach it??? down pipe back,cat back???
Not with the SVT exhaust on a Zetec. I actually dynoed before & after. There was no loss. Gains were minimal (1-3 hp at most), but at least it gained something.
Of course that would be within the margin of error for the dyno. Although it could be an actual increase as well. I am sure it looks a whole lot better too.
The single pipe 2.28 inch pipe on my SVT Focus seems to be adequate for my Zetec application. I am thinking the average non-SVT zetec would need less flow.
"Cobb - It's not just for corn anymore!"
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Joined: Aug 2002
Posts: 214
CEG\'er
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CEG\'er
Joined: Aug 2002
Posts: 214 |
i have a 2.5" exhaust with dual pipes and a flowmaster 40 series muffler it sounds good. but its not loud enough for me. i dont know if id sell it though. But i need money for my altenator and i want rims.
-//Stefan//-
Aim: TearGasParade
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Joined: May 2001
Posts: 2,291
Hard-core CEG'er
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Hard-core CEG'er
Joined: May 2001
Posts: 2,291 |
Originally posted by MotorCity:
Of course that would be within the margin of error for the dyno. Although it could be an actual increase as well. I am sure it looks a whole lot better too.
a - I always make at least 3 passes when checking for gains/losses for a mod.
b - I dyno'd on the same day - before & after
c - I always use the same dyno, in the same shop, strapped down the same way, same wideband O2, etc.
I'm not arguing that a dyno can't be wrong or that this mod is in any way a real increase in power, but if I tell you I dyno'd a gain you can take it for what it's worth. I mean - sheesh - my Zetec's only made 170+ passes - we are familiar w/ the ways of the dyno
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Joined: Sep 2002
Posts: 3,632
Hard-core CEG'er
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Hard-core CEG'er
Joined: Sep 2002
Posts: 3,632 |
I am not doubting that you made the gains. Even with no changes and running back to back there is going to be some variation. When your talking 1-3 HP I don't know how much of that can not be explained by variation (although the mulitple passes does help).
Of course the dual exits do look quite nice on the Contour and I had put the SVT exhaust on my Duratec Contour.
"Cobb - It's not just for corn anymore!"
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Joined: Mar 2002
Posts: 2,094
Hard-core CEG'er
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Hard-core CEG'er
Joined: Mar 2002
Posts: 2,094 |
Originally posted by D Davis:
Originally posted by CrispRide:
was there any substantial gains???? i thought goin dual on a 4-cylie lowered the back pressure too much and was actually detremental to acceleration and the low end torque but if you say it works great, ill get one !!!! where did you attach it??? down pipe back,cat back???
Not with the SVT exhaust on a Zetec. I actually dynoed before & after. There was no loss. Gains were minimal (1-3 hp at most), but at least it gained something.
No the key there is "no loss" 
'95 GL White
I've got mods.
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