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20th January 2011, 21:27
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#1
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Saxperience Post Whore
Join Date: Feb 2008
Location: wirral
Posts: 6,348
Car(s): Icelandic vtr turbo
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fiberglass bonnet with throttle bodies
right ive been in talk for some time with a guy on here whos willing to make me a bonnet with a scoop off set just before the throttle bodies so i can get a more direct cold air flow into them, i can see the Pros from doing this being increased mass of cold air into the engine and possibly a better throttle responce, Cons being it could let water in/onto the filter then sucked into the engine if not designed right and maybe cause a airpocket in the engine space itself (would i be right in thinking this) with the unused air.
Can you all share your opinions on this please
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20th January 2011, 21:36
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#2
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Saxperience Forum Bum
Join Date: Dec 2009
Location: Uckfield, East Sussex
Posts: 3,362
Car(s): Citroen saxo 1.4 furio
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This for a road car, or a track car?
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20th January 2011, 21:36
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#3
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Established Member
Join Date: Dec 2010
Location: Aberdeen
Posts: 2,129
Car(s): Race: 106 Rallye 16v. Road: Mercedes Vito 120 CDI
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Do it.
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20th January 2011, 21:41
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#4
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Saxperience Post Whore
Join Date: Feb 2008
Location: wirral
Posts: 6,348
Car(s): Icelandic vtr turbo
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Quote:
Originally Posted by adamskiTNR
This for a road car, or a track car?
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both for this year or 2 then it'll come off the road for good once ive decided what i like doing best
Quote:
Originally Posted by Dave_P
Do it.
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dave i was thinking of some thing a bit bigger tbh but do you notice a difference anyway
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20th January 2011, 21:41
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#5
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Saxperience Forum Bum
Join Date: Dec 2009
Location: Uckfield, East Sussex
Posts: 3,362
Car(s): Citroen saxo 1.4 furio
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dave, what is your setup under the naca duct? an air box pressed up against the bonnet?
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20th January 2011, 21:43
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#6
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Saxperience Forum Bum
Join Date: Dec 2008
Location: Pontefract
Posts: 4,007
Car(s): 2010 E92 320i MSport
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Just get a subaru bonnet vent, theyre only about £40. Not hard to fit at all.
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20th January 2011, 21:45
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#7
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Saxperience Forum Bum
Join Date: Dec 2008
Location: Pontefract
Posts: 4,007
Car(s): 2010 E92 320i MSport
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Looks shit, but functionally perfect.
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20th January 2011, 21:46
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#8
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Established Member
Join Date: Dec 2010
Location: Aberdeen
Posts: 2,129
Car(s): Race: 106 Rallye 16v. Road: Mercedes Vito 120 CDI
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Quote:
Originally Posted by adamskiTNR
dave, what is your setup under the naca duct? an air box pressed up against the bonnet?
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20th January 2011, 21:51
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#9
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Saxperience Post Whore
Join Date: Feb 2008
Location: wirral
Posts: 6,348
Car(s): Icelandic vtr turbo
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Quote:
Originally Posted by JoshB
Just get a subaru bonnet vent, theyre only about £40. Not hard to fit at all.
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really not a fan of those as they come upoff the bonnet and then curve over iwas thinking more along the lines of this
Edit that 1 in your pic doesnt look as bad as i thought it would, did the scoops change at all with the shapes
Last edited by rorz_vts; 20th January 2011 at 21:53.
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20th January 2011, 21:51
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#10
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Saxperience Forum Bum
Join Date: Dec 2009
Location: Uckfield, East Sussex
Posts: 3,362
Car(s): Citroen saxo 1.4 furio
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liking the sprint fuel tank
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20th January 2011, 21:53
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#11
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Established Member
Join Date: Dec 2010
Location: Aberdeen
Posts: 2,129
Car(s): Race: 106 Rallye 16v. Road: Mercedes Vito 120 CDI
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5 litres of fun.
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20th January 2011, 21:54
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#12
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Established Member
Join Date: Sep 2009
Location: rotherham
Posts: 1,832
Car(s): Be scirocco, full on 03plate track spec Saxo
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Quote:
Originally Posted by rorz_vts
really not a fan of those as they come upoff the bonnet and then curve over iwas thinking more along the lines of this
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fitted couple these at work on chaved up cars in passes... the bond of fiberglass to steel then paint its just cracks and looks shit tbh
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20th January 2011, 21:55
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#13
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Established Member
Join Date: Dec 2010
Location: Aberdeen
Posts: 2,129
Car(s): Race: 106 Rallye 16v. Road: Mercedes Vito 120 CDI
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Quote:
Originally Posted by rorz_vts
dave i was thinking of some thing a bit bigger tbh but do you notice a difference anyway
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I've not had it any other way for a b4 & after.
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20th January 2011, 21:58
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#14
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Saxperience Post Whore
Join Date: Feb 2008
Location: wirral
Posts: 6,348
Car(s): Icelandic vtr turbo
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Quote:
Originally Posted by mark1311
fitted couple these at work on chaved up cars in passes... the bond of fiberglass to steel then paint its just cracks and looks shit tbh
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yea i wasnt going to put it on the metal mate i did say i was wanting to get a fiberglass item
Quote:
Originally Posted by Dave_P
I've not had it any other way for a b4 & after.
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arr fair enough dave loving the under bonnet shot tho
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20th January 2011, 21:59
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#15
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Saxperience Forum Bum
Join Date: Dec 2009
Location: Uckfield, East Sussex
Posts: 3,362
Car(s): Citroen saxo 1.4 furio
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it may not look big. but naca ducts are highly efficient
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20th January 2011, 22:37
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#16
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Saxperience Post Whore
Join Date: Feb 2008
Location: wirral
Posts: 6,348
Car(s): Icelandic vtr turbo
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so i believe, what about a mini cooper s scoop not over the top and would sit nicely in the bonnet
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1st February 2011, 22:04
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#17
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Super Moderator
Join Date: Feb 2004
Location: Tonbridge United Kingdom (England)
Posts: 38,236
Car(s): Vtr, 172, throttle bodied track slut
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Quote:
Originally Posted by adamskiTNR
it may not look big. but naca ducts are highly efficient
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probably the most used shape of a vent in production today.
Heck even a carrera GT uses this shape in its inlet system
__________________
God made beer, women and Throttle bodies
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1st February 2011, 22:10
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#18
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Saxperience Addict
Join Date: Nov 2006
Location: A farm shed in Aylesbury
Posts: 14,916
Car(s): Corolla AE86
Peugeot 205 B18C (in bits)
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aerodynamically and aesthetically the NACA duct is best. Big bonnet scoops look rubbish.
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1st February 2011, 22:12
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#19
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Super Moderator
Join Date: Feb 2004
Location: Tonbridge United Kingdom (England)
Posts: 38,236
Car(s): Vtr, 172, throttle bodied track slut
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the old 106 under bonnet set up was interesting mind, although not easy to copy and one wonders how much it is effected by heat chanelling it directly over the engine
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God made beer, women and Throttle bodies
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