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Author Topic: Gp4 Exhaust  (Read 877 times)
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Nigel1967
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Posts: 17


« on: 11 September, 2023, 11:12:32 AM »

Hi all... I have a series one zagato which has what looks  like a gp4 exhaust but has a silencer in the centre under the car and another at the exhaust exit.
The car is semi-track prepared and so is lower than standard so the centre silencer can cause ground clearance issues.
The question is have is, should  there even be a centre silencer or should they both be towards the rear?
Many thanks
Nigel.
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Richard Fridd
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« Reply #1 on: 11 September, 2023, 11:29:39 AM »

The centre silencer is normally transverse and in the area provided near to rear axle.

  Richard
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Richard Nevison Fridd                                                                      Happy Lancia, Happy Life
Nigel1967
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Posts: 17


« Reply #2 on: 11 September, 2023, 01:04:09 PM »

Hi Richard,
I have that sort on standard cars but the one i have is a lot smaller than the traverse type.
Maybe i have something that somebody thought was a good  idea  at some stage  Smiley
Thanks v much
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lancialulu
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« Reply #3 on: 11 September, 2023, 01:11:31 PM »

the centre silencer is normally transverse  as  Richard  Fridd says and there should be a heat shield in front of the axle indicating location. Gp4 tended to have a more pancake  silencer mounted to the side
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Its not the winning but taking part! or is it taking apart?
Lancias:
1955 Aurelia B12
1967 Fulvia 1.3HFR
1972 Fulvia 1600HF
1972 Fulvia Sport 1600
1983 HPE VX
1988 Delta 1.6GTie
1998 Zeta 21.  12v
Nigel1967
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Posts: 17


« Reply #4 on: 11 September, 2023, 01:18:20 PM »

Ah i see... interesting..  I think i have a versi0on of this  one

https://shop.historicracing.de/en/p/complete-group-4-exhaust-system-stainless-steel-fulvia-all

Except,  the small  silencer is under the middle of the car.
By the looks of this photo,  they should both be at the back.
I'll see if mine has been fitted incorrectly.

Thanks again cheps
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Nigel1967
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Posts: 17


« Reply #5 on: 11 September, 2023, 01:21:41 PM »

chaps even!
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lancialulu
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Posts: 4970



« Reply #6 on: 11 September, 2023, 01:57:19 PM »

I have never seen 2 boxes after the axle.
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Its not the winning but taking part! or is it taking apart?
Lancias:
1955 Aurelia B12
1967 Fulvia 1.3HFR
1972 Fulvia 1600HF
1972 Fulvia Sport 1600
1983 HPE VX
1988 Delta 1.6GTie
1998 Zeta 21.  12v
Nigel1967
Member
**
Posts: 17


« Reply #7 on: 11 September, 2023, 02:37:12 PM »

Neither have i but then i'm no expert on these but i think this would help my issue.

https://ricambilanciafulvia.it/en/product/impianto-scarico-gr4-fulvia-inox-2/

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lancialulu
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« Reply #8 on: 11 September, 2023, 03:31:15 PM »

have  you contacted Omicron as there Gp4 has a pancake centre box
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Its not the winning but taking part! or is it taking apart?
Lancias:
1955 Aurelia B12
1967 Fulvia 1.3HFR
1972 Fulvia 1600HF
1972 Fulvia Sport 1600
1983 HPE VX
1988 Delta 1.6GTie
1998 Zeta 21.  12v
Nigel1967
Member
**
Posts: 17


« Reply #9 on: 11 September, 2023, 07:10:42 PM »

I havenít but Iíll give them a call tomorrow .
I guess it doesnít matter as long as it fits.
Where mine is lower than standard, if Iím carrying a passenger,sometimes over bumps, the axle comes up and takes the exhaust with it and causes the end pipe to knock on the rear valence. All the joys of a modified car I suppose . Smiley
Thanks again for the info
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