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Author raising the back of the bonnet to increase airflow...
RobHayes
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Registered: 6th Sep 03
Location: Lincolnshire
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16th Mar 06 at 17:45   View User's Profile U2U Member Reply With Quote

anyone done it?
how is it done?
any pics?

thanks
Siberia
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Registered: 9th Oct 03
Location: Leprechaun Land Drives : Zafira GSI
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16th Mar 06 at 17:57   View User's Profile U2U Member Reply With Quote

big bolts and spacers on the bonnet hinges... makes sense i suppose...
James R
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Registered: 4th Feb 03
Location: 205GTi16/306GTi16
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16th Mar 06 at 18:00   View User's Profile U2U Member Reply With Quote

Rather than increase airflow it stops it going under the car at speed and reduces "lift" at the front. AS said longer bolts and some washer do the trick. need to re-aim the screen jets though
Siberia
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Registered: 9th Oct 03
Location: Leprechaun Land Drives : Zafira GSI
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16th Mar 06 at 18:01   View User's Profile U2U Member Reply With Quote

see alot of drift cars with this done....
RobHayes
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Registered: 6th Sep 03
Location: Lincolnshire
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16th Mar 06 at 18:10   View User's Profile U2U Member Reply With Quote

so it wouldnt help let hot air out rather than have it sucked into my TBs?
jamesvalver
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Registered: 21st Feb 03
Location: Bury St Edmunds, Suffolk
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16th Mar 06 at 18:19   View User's Profile U2U Member Reply With Quote

ive pickin up me valver 2nite. its had it done aswell. as the cold air passes over the bonnet it draws out the hot hair from the engine bay. works like a big louvre (sp)
Siberia
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Registered: 9th Oct 03
Location: Leprechaun Land Drives : Zafira GSI
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16th Mar 06 at 18:20   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by RobHayes
so it wouldnt help let hot air out rather than have it sucked into my TBs?


yes it would... there would be more flow over the engine...

air in the front and out the rear of the bonnet...

would also let water in though i would imagine...

[Edited on 16-03-2006 by Siberia]
richysport
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Registered: 15th Apr 05
Location: Flintshire, north wales
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16th Mar 06 at 20:15   View User's Profile U2U Member Reply With Quote

nova with tb's by me done this
Jake
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Registered: 24th Jan 05
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16th Mar 06 at 20:48   View User's Profile U2U Member Reply With Quote

corsa E-TEC has had it done to his

Adam_B
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Registered: 13th Dec 00
Location: Lancashire
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16th Mar 06 at 20:54   View User's Profile U2U Member Reply With Quote

id rather have a bonnet that fits properly
mwg
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Registered: 19th Feb 04
Location: South Lakes
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16th Mar 06 at 21:43   View User's Profile U2U Member Reply With Quote

It looks gay
AK
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Registered: 5th Jul 00
Location: Aberdeen City
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16th Mar 06 at 22:15   View User's Profile U2U Member Reply With Quote

function over looks in opinion
RobHayes
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Registered: 6th Sep 03
Location: Lincolnshire
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17th Mar 06 at 07:52   View User's Profile U2U Member Reply With Quote

im not overly keen on the looks of it either, but prefer that than a big gay vent
Dave A
USER UNDER INVESTIGATION - DO NOT TRADE

Registered: 10th Dec 03
Location: County Durham
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17th Mar 06 at 08:00   View User's Profile U2U Member Reply With Quote

bonnet louvers (sp)

thats what im doing, my intake temps are way too hot even with 2 huge airfeeds to the tb's. didnt want to do the bonnet vent thing either rob.
Adam-D
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Registered: 11th May 02
Location: Cheshire
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17th Mar 06 at 08:03   View User's Profile U2U Member Reply With Quote

i would just cut the bulkhead top out and lose the heater and the scuttle acts as a vent then
Rileysport
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Registered: 18th Jun 04
Location: West Yorkshire
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17th Mar 06 at 08:06   View User's Profile U2U Member Reply With Quote

take a hole saw to the bulk head... air drawn over the engine and into the passenger compartment, the only way to fly
RobHayes
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Registered: 6th Sep 03
Location: Lincolnshire
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17th Mar 06 at 08:24   View User's Profile U2U Member Reply With Quote

but i like my heater...
Adam-D
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Registered: 11th May 02
Location: Cheshire
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17th Mar 06 at 08:25   View User's Profile U2U Member Reply With Quote

buy a electric one
mwg
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Registered: 19th Feb 04
Location: South Lakes
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17th Mar 06 at 11:50   View User's Profile U2U Member Reply With Quote

yes louvres would look good and do the job
ckallis500
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Registered: 14th Dec 04
Location: plymouth
User status: Offline
17th Mar 06 at 20:30   View User's Profile U2U Member Reply With Quote

this is what you want if running throttle bodies on a corsa... or maybe a home made variation of it...
from http://www.pro-tecmotorsport.com

Air induction kit in carbon for Corsa B Includes modified front fitting bonnet vent, lowered slam panel, under bonnet feed duct
]


[Edited on 17-03-2006 by ckallis500]
RobHayes
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Registered: 6th Sep 03
Location: Lincolnshire
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17th Mar 06 at 21:00   View User's Profile U2U Member Reply With Quote

yes but that costs 2 arms and half a leg..... which i dont have spare currently

 
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