Pops and bang - are you safe?

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mihalyn90
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Pops and bang - are you safe?

Post by mihalyn90 » Tue Jul 18, 2017 9:49 pm

Hey,

So i removed the center box :) because why not :D

so cat on it's place, rear muffler is a magnaflow and it does this:



is it ok? is she all-right?
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Ford Puma 1998 - 1.7L

Magnaflow Core Competition backbox + TIP
KYB bi-tubular shock absorbers
SAL BS 10/A active woofer

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tuonokid
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Pops and bang - are you safe?

Post by tuonokid » Tue Jul 18, 2017 10:29 pm

You've probably got an air leak on your exhaust that's causing the pops and bangs. If it's anywhere in front of the lambda or even slightly behind the lambda you could be getting a bad mixture into the engine so get it fixed as soon as you can.
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mihalyn90
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Pops and bang - are you safe?

Post by mihalyn90 » Tue Jul 18, 2017 10:31 pm

don't think so, as the car was fully checked and this is not the only puma sounding like this
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Ford Puma 1998 - 1.7L

Magnaflow Core Competition backbox + TIP
KYB bi-tubular shock absorbers
SAL BS 10/A active woofer

Help me make Pumy healthy again

d170sam
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Pops and bang - are you safe?

Post by d170sam » Thu Jul 20, 2017 8:59 am

Sounds cool, leave it the way it is :)
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mihalyn90
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Pops and bang - are you safe?

Post by mihalyn90 » Thu Jul 20, 2017 1:11 pm

of course i'll leave it as it is... anyway today it backfired at around 5500 RPM... jesus i scared myself :|
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Ford Puma 1998 - 1.7L

Magnaflow Core Competition backbox + TIP
KYB bi-tubular shock absorbers
SAL BS 10/A active woofer

Help me make Pumy healthy again

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zinc2000
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Pops and bang - are you safe?

Post by zinc2000 » Thu Jul 20, 2017 6:16 pm

Just remember in the long run any big backfire (missfire) will damage the "cat" and /or engine liners etc

Of course if the back firing occurs under power then you have an ignition/fuel problem which needs looking at.

And yes I am old and a killjoy :grin:
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Frank
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Pops and bang - are you safe?

Post by Frank » Thu Jul 20, 2017 9:32 pm

mihalyn90 wrote: is it ok? is she all-right?
Pops and burbling is OK, but backfires are not a 'good thing' to have.

When I put on my Hoffmann race tube and Hoffmann back box (so, like you, the middle box went) the system was slightly louder and burbled and popped away as soon as I lifted my foot off. Maybe it's my perception, but it doesn't seem to do that very much any more - possibly the ECU has 'learned' and adjusted things around or else I've just got used to it and don't notice.
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mihalyn90
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Pops and bang - are you safe?

Post by mihalyn90 » Fri Jul 21, 2017 10:15 am

well with closed window i don't hear it... but on the outside :)) it''s kinda funny seeing kids running away :D and old tarts jumping n bushes :D

pops occurs at liftoff of the gas pedal
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Ford Puma 1998 - 1.7L

Magnaflow Core Competition backbox + TIP
KYB bi-tubular shock absorbers
SAL BS 10/A active woofer

Help me make Pumy healthy again

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Wild E. Coyote
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Pops and bang - are you safe?

Post by Wild E. Coyote » Fri Jul 21, 2017 12:04 pm

If one of your exhaust valves is not sealing properly, you will get pops and bangs big time. Remember a friend who had a Peugeot 205 GTI and his was popping and banging big time. When we dismantled the engine, found that exhaust valve on 3rd cylinder was not sealing all the way....
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mihalyn90
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Pops and bang - are you safe?

Post by mihalyn90 » Sun Jul 23, 2017 7:40 pm

don't see any effect of this... it's a TAPE ecu :) usually they do this as i understood
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Ford Puma 1998 - 1.7L

Magnaflow Core Competition backbox + TIP
KYB bi-tubular shock absorbers
SAL BS 10/A active woofer

Help me make Pumy healthy again

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