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Author Topic: 160 comp vs 180 comp Monza comparison  (Read 12630 times)

Offline Brian1612

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Re: 160 comp vs 180 comp Monza comparison
« Reply #15 on: September 11, 2015, 10:37:00 am »
Haven't had or noticed an issue like this at all...?

Will listen out for it but so far nothing has really got my attention, no rattles from the car, seems well put together! Did have a rattle from my deflector for the first mile with the window down yesterday but it went away thankfully :)
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    Offline android_808

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    Re: 160 comp vs 180 comp Monza comparison
    « Reply #16 on: September 11, 2015, 10:49:29 am »
    There's two noises.  One sounds like it is coming from the rear almost like a very quiet static from a speaker (which it isn't as the radios off).  Wondering if its wind noise from the aerial but I can live with it.

    The main one is like a high pitched whistle like a window slightly open.  Like you PORTHOS, my old car never did it which is why I'm noticing it now.  I must admit it wasn't as bad when I filled up yesterday, started to get really noticable just under 70 where as it was from 50 the other day.  Having only done 250mi, maybe its just something really weird like the seals/doors/windows needing a bit of use ???

    I do have to close all doors and especially boot quite firmly at the moment os this might have something to do with it.  My old Esseesse you used to be able to drop the boot from about 6" above the latch and it would close.  Going to mention this when it goes in, pulling door closed 3 times each time I get in is going to bug me.

    Offline Mgbudd

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    Re: 160 comp vs 180 comp Monza comparison
    « Reply #17 on: September 11, 2015, 11:00:18 am »
    No whistles from mine either but the boot does take some effort to close!

    I had no rattles for 400miles but the passenger sabelt has started rattling - gggggrrrrrr. Sound like it's coming from underneath or where the back meets the base, 30 mins of investigation revealed nothing!  Will see if the dealer has any ideas...

    Engine is awesome and even without the pops the exhaust sounds great...

    Offline PORTHOS

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    Re: 160 comp vs 180 comp Monza comparison
    « Reply #18 on: September 11, 2015, 11:24:34 am »
    Like you PORTHOS, my old car never did it which is why I'm noticing it now.  I must admit it wasn't as bad when I filled up yesterday, started to get really noticable just under 70 where as it was from 50 the other day.

    Yep sounds the same as mine, ha ha. I'll have a look later at it, but it is indeed over 50mph.

    I do have a rattle on my exhaust that sounds AWFUL, you can hear it in the video around the 6 minute mark, it comes in at 3k and only just under. They are looking at it for me end of month :)

    Oddly though this one is far far better than my 160, that had too many problems to list including a leaking battery that destroyed 20% of the engine bay, lol.

    Offline Brian1612

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    Re: 160 comp vs 180 comp Monza comparison
    « Reply #19 on: September 11, 2015, 11:30:30 am »
    No whistles from mine either but the boot does take some effort to close!

    I had no rattles for 400miles but the passenger sabelt has started rattling - gggggrrrrrr. Sound like it's coming from underneath or where the back meets the base, 30 mins of investigation revealed nothing!  Will see if the dealer has any ideas...

    Engine is awesome and even without the pops the exhaust sounds great...

    I had this on both my Punto Evo's with regards to the Sabelts and can almost 100% guarantee it will be a loose bolt/bolts holding the seat down. They sometime loosen off or aren't tightened fully then start to rattle as the seat vibrates at speed. You will notice it goes away if someone sits on the seat or if you hold the seat while driving.

    Took me a week to diagnose this when it first appeared on my Punto Evo Sporting but get underneath and tighten those bolts up! :)

    Hope this helps you! :)
    ---Abarth 595 Competizone Owner---

    Offline PORTHOS

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    Re: 160 comp vs 180 comp Monza comparison
    « Reply #20 on: September 11, 2015, 02:02:15 pm »
    Also in regards to the Monza flap, wiring it open basically turns it into a Bombardone exhaust, so you lose some torque low down, the flap closed below 4krpm actually helps increase back pressure though the silencer, helping the turbo spool up more easily, above 4k rpm the flap opens and lets the exhaust gasses though the non silenced pipes, basically making it a racing exhaust where power at high rpm's are more important. The Monza is actually a very clever bit of design, the flap is actually there for a reason, not just so it sounds better. It basically gives you a street and a racing exhaust in one with the benefits of both.
    « Last Edit: September 11, 2015, 02:09:33 pm by PORTHOS »

    Offline AdamAbarth

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    Re: 160 comp vs 180 comp Monza comparison
    « Reply #21 on: September 11, 2015, 04:09:01 pm »
    Also in regards to the Monza flap, wiring it open basically turns it into a Bombardone exhaust, so you lose some torque low down, the flap closed below 4krpm actually helps increase back pressure though the silencer, helping the turbo spool up more easily, above 4k rpm the flap opens and lets the exhaust gasses though the non silenced pipes, basically making it a racing exhaust where power at high rpm's are more important. The Monza is actually a very clever bit of design, the flap is actually there for a reason, not just so it sounds better. It basically gives you a street and a racing exhaust in one with the benefits of both.

    Couldn't have put it better myself!
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    Offline sylvano

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    Re: 160 comp vs 180 comp Monza comparison
    « Reply #22 on: September 11, 2015, 05:42:08 pm »
    Also in regards to the Monza flap, wiring it open basically turns it into a Bombardone exhaust, so you lose some torque low down, the flap closed below 4krpm actually helps increase back pressure though the silencer, helping the turbo spool up more easily, above 4k rpm the flap opens and lets the exhaust gasses though the non silenced pipes, basically making it a racing exhaust where power at high rpm's are more important. The Monza is actually a very clever bit of design, the flap is actually there for a reason, not just so it sounds better. It basically gives you a street and a racing exhaust in one with the benefits of both.
    So, do you recommend don't wiring it, right?
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    Offline sylvano

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    Re: 160 comp vs 180 comp Monza comparison
    « Reply #23 on: September 11, 2015, 05:44:17 pm »
    Also in regards to the Monza flap, wiring it open basically turns it into a Bombardone exhaust, so you lose some torque low down, the flap closed below 4krpm actually helps increase back pressure though the silencer, helping the turbo spool up more easily, above 4k rpm the flap opens and lets the exhaust gasses though the non silenced pipes, basically making it a racing exhaust where power at high rpm's are more important. The Monza is actually a very clever bit of design, the flap is actually there for a reason, not just so it sounds better. It basically gives you a street and a racing exhaust in one with the benefits of both.
    But with a Bombardone, you also loss some torque down?
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    Offline PORTHOS

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    Re: 160 comp vs 180 comp Monza comparison
    « Reply #24 on: September 11, 2015, 05:54:27 pm »
    I don't recommend wiring the Monza exhaust open no, were talking small losses here. I imagine Abarth spent quite a lot of time developing it but at the end of the day it's your choice.

    I have seen quite few people now losing torque low down with the Bombardone, which makes perfect sense as there is no silencer to aid back pressure to help the turbo spool, but once the turbo is on boost it doesn't need back the pressure at higher rpm's. The Bombardone exhaust is not road legal and is aimed at track racing which makes perfect sense as you are only using the higher rpm range the whole time.

    The Monza is a best of both solution.
    « Last Edit: September 11, 2015, 05:59:50 pm by PORTHOS »

    Offline sylvano

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    Re: 160 comp vs 180 comp Monza comparison
    « Reply #25 on: September 11, 2015, 07:45:46 pm »
    I don't recommend wiring the Monza exhaust open no, were talking small losses here. I imagine Abarth spent quite a lot of time developing it but at the end of the day it's your choice.

    I have seen quite few people now losing torque low down with the Bombardone, which makes perfect sense as there is no silencer to aid back pressure to help the turbo spool, but once the turbo is on boost it doesn't need back the pressure at higher rpm's. The Bombardone exhaust is not road legal and is aimed at track racing which makes perfect sense as you are only using the higher rpm range the whole time.

    The Monza is a best of both solution.

    I think that a.lot.of time in developing to have a street.legal exhaust with a "plus". I dont think that is due to avoid.losings of.power
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    Offline sylvano

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    Re: 160 comp vs 180 comp Monza comparison
    « Reply #26 on: September 11, 2015, 07:47:01 pm »
    I don't recommend wiring the Monza exhaust open no, were talking small losses here. I imagine Abarth spent quite a lot of time developing it but at the end of the day it's your choice.

    I have seen quite few people now losing torque low down with the Bombardone, which makes perfect sense as there is no silencer to aid back pressure to help the turbo spool, but once the turbo is on boost it doesn't need back the pressure at higher rpm's. The Bombardone exhaust is not road legal and is aimed at track racing which makes perfect sense as you are only using the higher rpm range the whole time.

    The Monza is a best of both solution.

    That has sense.... :thumb:
    « Last Edit: September 12, 2015, 11:24:52 am by PORTHOS »
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    Offline Trials_guy

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    Re: 160 comp vs 180 comp Monza comparison
    « Reply #27 on: September 11, 2015, 08:21:26 pm »
    TBH, I didn't wire mine open because if you get water inside the exhaust it will corrode a lot quicker as there's nothing to blow it out / evaporate it from the silencer.

    Offline AdamAbarth

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    Re: 160 comp vs 180 comp Monza comparison
    « Reply #28 on: September 21, 2015, 08:41:55 pm »
    I don't recommend wiring the Monza exhaust open no, were talking small losses here. I imagine Abarth spent quite a lot of time developing it but at the end of the day it's your choice.

    I have seen quite few people now losing torque low down with the Bombardone, which makes perfect sense as there is no silencer to aid back pressure to help the turbo spool, but once the turbo is on boost it doesn't need back the pressure at higher rpm's. The Bombardone exhaust is not road legal and is aimed at track racing which makes perfect sense as you are only using the higher rpm range the whole time.

    The Monza is a best of both solution.

    Been thinking about this. If the Monza exhaust wired open compromises performance why did Abarth put an Akrapovic exhaust on the Biposto which is manually operated and a road car.
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    Offline Brian1612

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    Re: 160 comp vs 180 comp Monza comparison
    « Reply #29 on: September 22, 2015, 09:25:47 am »
    I wired it open and didn't like the sound tbh. The car lost the rasp and became more burbly/boy racery and artificial. Also it was fine for the most part but on one occasion I planted my foot to the floor in 2nd gear at just under 3k Revs and the car done nothing. I thought something had gone wrong with the car, after 2-3 seconds it just burst into life. Not sure if this was anything to do with the valve being wired open at the time but the cable tie was cut off once I got home after that.
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