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#1612298 - 28/11/2017 09:48 20V air box feed inlet pipe removal etc
RatDog Offline
Reaping the fruits

Registered: 09/09/2016
Posts: 94
Loc: Gloucester UK

I have looked at doing air box mods to my 20V.

The original pipe feeding to the airbox from front grille seems to be very restrictive, small diameter and seems to have a few box shaped bits on it. what are they for ?

Would chopping all this off and replacing it with a 3" bellmouth on the front of the air box give any more power and responsiveness, don't want to loose any low down torque though. Daily driver in all weathers.
cheers

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#1612300 - 28/11/2017 10:58 Re: 20V air box feed inlet pipe removal etc [Re: RatDog]
Countrycruising Offline
Club Rep Europe, member 914
I AM a Coop

Registered: 12/09/2006
Posts: 14459
Loc: FCSS 01684 593187
Making any changes to the 20v intake pipework will have an effect on low down power, the route and resonators play an important part to the torque curve so any changes will make it feel flat.
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#1612303 - 28/11/2017 11:31 Re: 20V air box feed inlet pipe removal etc [Re: RatDog]
RatDog Offline
Reaping the fruits

Registered: 09/09/2016
Posts: 94
Loc: Gloucester UK

Thanks for that.
Car is a 20V Vis, at the moment it only has the initial pipe from the air box fitted. It came to me like that.

but I do have the other parts, resonators etc from another 20V ( NOT Vis ) so I assume it would be a good option to put these on my car rather than leave it as it is or chopping off the pipe.

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#1612310 - 28/11/2017 13:01 Re: 20V air box feed inlet pipe removal etc [Re: RatDog]
Countrycruising Offline
Club Rep Europe, member 914
I AM a Coop

Registered: 12/09/2006
Posts: 14459
Loc: FCSS 01684 593187
Yes fit what you have as the VIS and early n/a intake system is the same on both models, they only differ at the expansion bellows before the throttle body as the early n/a has an air temp sensor in the base of that pipe.
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#1612320 - 28/11/2017 14:10 Re: 20V air box feed inlet pipe removal etc [Re: RatDog]
RatDog Offline
Reaping the fruits

Registered: 09/09/2016
Posts: 94
Loc: Gloucester UK

Great

thanks for that

car is BarryGadd's old one

T

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#1612633 - 05/12/2017 12:02 Re: 20V air box feed inlet pipe removal etc [Re: RatDog]
RatDog Offline
Reaping the fruits

Registered: 09/09/2016
Posts: 94
Loc: Gloucester UK

Well I put all the inlet pipework on over the weekend

and WOW what a difference

thanks for the advice

cheers

T

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#1612639 - 05/12/2017 13:45 Re: 20V air box feed inlet pipe removal etc [Re: RatDog]
Countrycruising Offline
Club Rep Europe, member 914
I AM a Coop

Registered: 12/09/2006
Posts: 14459
Loc: FCSS 01684 593187
You're very welcome smile
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#1612670 - 06/12/2017 15:35 Re: 20V air box feed inlet pipe removal etc [Re: RatDog]
Brigham Offline
Club member 316
Making a profit

Registered: 06/02/2008
Posts: 234
Loc: Chepstow
Second what Joe has said, we put all Rosa's pipework back at restoration, what a difference. I'd Already fitted a Flea 20V NA plug and play chip, and a Cybox SS exhaust, we fitted a K&N panel filter.

John

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