what`s more important for exhaust , pipe diameter .. or muffler fow rating?
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what`s more important for exhaust , pipe diameter .. or muffler fow rating?
i am trying to determine what muffler will suit my car best ,and which way to go about this :
here is my car
stock twins
stock ports
pettit ecu
upgraded inter cooler ( similar to pettit medium )
stock fuel ( rewired 2nd stage so pump gets full V at WOT )
3" downpipe ,
3" midpipe with 3" cat ( magnaflow spun flow metallic cat )
stock rear muffler
boosting around 12 -13
ported wastegate
2 manual boost controllers
i wan to make 300-320 WHP ( ~ 600 cfm according to the 1.92 * WHP rule )
i h8 the way apexi n1 mufflers look ... and i don`t want to spend on a racingbeat , and i dotn want loud as much as possible
i want to keep a stock looking muffler ( oval without shiny tips ...)
from what i read the stock rear muffler flows aroun 275 CFM ....and doubling the flow would haflen the back pressure so ... min 550 CFM ratingi am looking for
my dilemma is the following :
btw here are the catalogs for reference
http://www.dynomax.com/ecat/pdfs/superturbo.pdf
http://www.dynomax.com/ecat/pdfs/ultrafloss.pdf
i am looking at :
1.dynomax super turbo 17740 crossflow model ( 3"in ...dual 2.25 out ) rated at 600 CFM [top of page 3]
2.dynomax ultraflow SS 17283 side-center ( 2.5" in/out ) rated at 1075 [middle of page 2 ]
also according to Dynomax , i know this has been a concern in the past , the continuous fiberglass filling will withstand up to 820 C or 1500 Fahrenheit )
option 1 : do a 3" catbackline to a super turbo 17740
option 2 : cut the stock muffler off the stock line and weld the 17283 in it`s place
option 3 : do a 3" catback with a reducer to 2.5" then weld the 17283
option 4 : anyone know other muffler such as a 3 inch in with 2x2.25 outlets that are not that far appart ?
option 5 : any other suggestions/combination that make sense ?
what are the advantage/disadvantages fo these options
thx for reading
any imput would be apreciated
here is my car
stock twins
stock ports
pettit ecu
upgraded inter cooler ( similar to pettit medium )
stock fuel ( rewired 2nd stage so pump gets full V at WOT )
3" downpipe ,
3" midpipe with 3" cat ( magnaflow spun flow metallic cat )
stock rear muffler
boosting around 12 -13
ported wastegate
2 manual boost controllers
i wan to make 300-320 WHP ( ~ 600 cfm according to the 1.92 * WHP rule )
i h8 the way apexi n1 mufflers look ... and i don`t want to spend on a racingbeat , and i dotn want loud as much as possible
i want to keep a stock looking muffler ( oval without shiny tips ...)
from what i read the stock rear muffler flows aroun 275 CFM ....and doubling the flow would haflen the back pressure so ... min 550 CFM ratingi am looking for
my dilemma is the following :
btw here are the catalogs for reference
http://www.dynomax.com/ecat/pdfs/superturbo.pdf
http://www.dynomax.com/ecat/pdfs/ultrafloss.pdf
i am looking at :
1.dynomax super turbo 17740 crossflow model ( 3"in ...dual 2.25 out ) rated at 600 CFM [top of page 3]
2.dynomax ultraflow SS 17283 side-center ( 2.5" in/out ) rated at 1075 [middle of page 2 ]
also according to Dynomax , i know this has been a concern in the past , the continuous fiberglass filling will withstand up to 820 C or 1500 Fahrenheit )
option 1 : do a 3" catbackline to a super turbo 17740
option 2 : cut the stock muffler off the stock line and weld the 17283 in it`s place
option 3 : do a 3" catback with a reducer to 2.5" then weld the 17283
option 4 : anyone know other muffler such as a 3 inch in with 2x2.25 outlets that are not that far appart ?
option 5 : any other suggestions/combination that make sense ?
what are the advantage/disadvantages fo these options
thx for reading
any imput would be apreciated
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option 1 : do a 3" catbackline to a super turbo 17740
option 2 : cut the stock muffler off the stock line and weld the 17283 in it`s place
option 3 : do a 3" catback with a reducer to 2.5" then weld the 17283
option 4 : anyone know other muffler such as a 3 inch in with 2x2.25 outlets that are not that far appart ?
option 5 : any other suggestions/combination that make sense ?
what are the advantage/disadvantages fo these options
thx for reading
any imput would be apreciated
2: Not real sure about fiberglass.
3: Again, not real sure about fiberglass.
4: I don't know about them being 2.25" across, but there are multiple exhaust systems with dual outlets. Kakimoto Twin, Apex'i N-1 Dual, Racing Beat Dual, SMB Dual, FEED Sonic AS-V, RE Amemiya Twin Dolphin Tail, or the rare St. May Shotgun exhaust, just to name a few.
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the main reason for which i want to stay with a low key ... oem`ish looking muffler is that cops in my are are EXTREMLY Attracted to shiny objects and big tips ... as soon as they see one .. they pull you over and ticket you for not having OEM muffler
if it were not for this i would have installed an N1 style long ago and not worry about anything
thx for the input
i may have found something , once i have my setup all done .. ill post pics and cost and vids and all kinds of stuff
if it were not for this i would have installed an N1 style long ago and not worry about anything
thx for the input
i may have found something , once i have my setup all done .. ill post pics and cost and vids and all kinds of stuff
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I'll be looking foward to see this, I want to get an aftermarket catback for my FD this summer, and the RB dual tip is pretty expensive, even if it is indeed awesome. I also want a sotck'ish' look and sound with better flow. If you find a cheaper, good looking and good sounding alternative to the RB dual tip, let me know!
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it is expensive unfortunately
but ..dont worry my friend ... i r teh cheap innovative romanian ... ill come up with something
ill post it once it`s all done
btw anyone know what the flow rating of the racing beat muffler are ?
thx
but ..dont worry my friend ... i r teh cheap innovative romanian ... ill come up with something
ill post it once it`s all done
btw anyone know what the flow rating of the racing beat muffler are ?
thx
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the main reason for which i want to stay with a low key ... oem`ish looking muffler is that cops in my are are EXTREMLY Attracted to shiny objects and big tips ... as soon as they see one .. they pull you over and ticket you for not having OEM muffler
if it were not for this i would have installed an N1 style long ago and not worry about anything
thx for the input
i may have found something , once i have my setup all done .. ill post pics and cost and vids and all kinds of stuff
if it were not for this i would have installed an N1 style long ago and not worry about anything
thx for the input
i may have found something , once i have my setup all done .. ill post pics and cost and vids and all kinds of stuff
Stop trying to tear your head apart looking for something to save a few bucks. Our exchange rate will change eventually hehe. Meanwhile there are many places that make single tip muffles that aren't canister style and many of them are very very low profile. FWIW, my Greddy SP made less noise than the OEM muffler with the stock cat and a Pettit DP.
Some interesting alternatives that won't have cops pulling you over every five minutes are:
Greddy SP
Tanabe Touring Medallion
Tanabe Super Medallion Hyper spec (essentially the same as the touring except the tip isn't a "dual wall" looks less classy)
HKS Street Legamax (which looks awesome)
Blitz Nur Touring Spec (also a very classy muffler)
All have piping sizes that flow well.
#16
Racecar - Formula 2000
Check for sale forums
I got lucky and found a used RB dual-tip in very good condition for $400 US shipped last spring. So, check any for-sale forums regularly. If you import a used one, you can usually get around the duty $ required to import a new one by just giving it a nominal low value for shipping.
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