924Board.org

[ThatCrazyMechanic]

hello i was woundering if it was possable to remove the turbo silencer or if it even had one i do not know at all. if so i wanted to have a loud turbo spool. will it hurt the performance will it enhance it. you think i should do it.
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1979 Porsche 931 (sliver) SOLD
1980 Porsche 931 (orange)

[emoore924]

Never heard of it on a 931. Part# or pics?

[ThatCrazyMechanic]

this is a turbo silencer ring. does 931 have one at all or no. does it increase power or decrease power. i want to have that loud turbo spool. do you recommend doing it if possable.


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1979 Porsche 931 (sliver) SOLD
1980 Porsche 931 (orange)

[WEASEL149]

The silencing ring is to cover a ported shroud or map width enhanced compressor housing. These are only found on modern turbos.
The old KKK's dont have a ported shroud so silencing rings are not necessary.
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1979 UK 932

[Rasta Monsta]

Perhaps a few of THESE ITEMS would suit the bill?
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Toofah King Bad

• WeiBe (1987 924S 2.5t) - 931 S3

[Fifty50Plus]

Rasta, you're bad....
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1979 924 NA race car H-Prod SCCA
1982 924 NA race car - Sold
1981 924 Turbo sold
1982 924 Turbo sold
1972 911 E race car - traded for Cayenne Diesel
1975 914 1.8 Building for H-Prod SCCA

[ideola]

@ Rasta

Crazy, if you want to hear more of the turbo spool, get rid of the stock airbox and replace it with a straight tube and cone filter like one of these (both custom made, both mine):




It won't "magnify" the sound, but you'll be able to hear it more than with the stock airbox.
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erstwhile owner of just about every 924 variant ever made

[GeorgeV]

[CorsePerVita]

The stock airbox doesn't look that bad to me. Any power gains to benefit from going to the setup you posted Ideola? (Dyno'd results anyway)
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- 1977 Porsche 924 2.0 N/A (Trackday Project)
- 1979 Porsche 924 2.0 N/A (The other daily)
- 1980 Porsche 931 (Daily)
- 1987 Lamborghini Jalpa
- 1999 Ducati 900SS