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  Soarer Central * Mechanical - Common * "I'm gonna ask the Audience on this one" --- What is a "JASMA"? Previous Previous    Next Next  

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Shane Van Ross
Tinkerer
Victoria
TT

Posts: 22
Reg: 07-2005

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 Wednesday, November 23, 2005 - 01:01 pm, by:  Shane Van Ross (Shane) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
Yes another one, doing further investigation on my car found stamped on the mufflers "JASMA" did a search on Google didnt get much, most of it was in JAPANESE.

Does any one know what it means, also what type of muffs they are?? "PLEASE XPLAIN"???
Mark Paddick
Goo Roo
ACT
Soarer UZZ31

Posts: 897
Reg: 07-2005

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 Wednesday, November 23, 2005 - 01:11 pm, by:  Mark Paddick (Sparks) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
One of the 'name' brand Japanese mufflers. HKS???
Lincoln Carter
TryHard
NSW
GT Limited

Posts: 111
Reg: 08-2005

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 Wednesday, November 23, 2005 - 02:03 pm, by:  Lincoln Carter (Dex) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
Japan Sewing Machinery Manufacturers Association ... lol

As far as i know its a brand of Muffler.
Emanuel Spinola
Moderator
NSW
JZZ30, UZZ32

Posts: 582
Reg: 07-2005

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 Wednesday, November 23, 2005 - 02:23 pm, by:  Emanuel Spinola (Manny) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
Afaik, it's a Japanese muffler certified standard, not a brand name.

http://www.jasma.org/
Brad Elphinstone
TryHard
NSW
JZZ30 GT-T

Posts: 314
Reg: 07-2005

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 Wednesday, November 23, 2005 - 02:27 pm, by:  Brad Elphinstone (Belphins) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
Japanese Automotive Sports Muffler Association
Andreas Niaouris
TryHard
W.A.
V8 Limited

Posts: 128
Reg: 07-2005

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 Wednesday, November 23, 2005 - 03:04 pm, by:  Andreas Niaouris (Andreasn) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
Wasn't Toyota originally a sewing machine factory anyway?
Chris Davey
TryHard
QLD
Corona

Posts: 122
Reg: 07-2005

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 Wednesday, November 23, 2005 - 03:35 pm, by:  Chris Davey (Chris_davey) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
yes. I saw a toyota sewing machine at spotlight the other day. Took a pic :-)
Shane McInnes
TryHard
NSW
TT

Posts: 156
Reg: 07-2005

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 Wednesday, November 23, 2005 - 04:15 pm, by:  Shane McInnes (Soarin_tt) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
Yeah i have Jasma stamped on my exhaust with Trust Mufflers
Andreas Niaouris
TryHard
W.A.
V8 Limited

Posts: 133
Reg: 07-2005

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 Wednesday, November 23, 2005 - 05:13 pm, by:  Andreas Niaouris (Andreasn) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
Must be good then. If it's a certified standard.
Tom Kneebone
Tinkerer
WA
factory 5 spd TT : Auto TT

Posts: 64
Reg: 10-2005

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 Wednesday, November 23, 2005 - 07:32 pm, by:  Tom Kneebone (Tomk) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
Well that answers that question, my mufflers I noticed have a JASMA plate on them also
Toan Nguyen
Tinkerer
VIC
TT

Posts: 46
Reg: 07-2005

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 Thursday, November 24, 2005 - 10:07 am, by:  Toan Nguyen (Soarer_gt) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
JASMA certifies the exhaust system for street use if it us unmodified (usually complete cat back systems). It's a standard which exhaust manufacturers use to stay under 90db for EPA/Street use.

This is most noticeable when you compare an aftermarket setup from your local shop 3" straight through exhaust which is loud as fvck to a HKS super dragger cat back setup which is also 3" straight through but quiet until you rev it.

If a JASMA stamped exhaust is loud then you've probably got some deterioration of the baffles inside a muffler or resonator.

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