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View Full Version : Air flow to ITB's


cliokongen
10-12-2009, 15:37
ITB's fitted (finally) :D
Filter sits very close to the bonnet (actually touches).
I recon the air flow would be quite restricted using the std. bonnet.

Does anyone have experiences regarding air flow to ITB's?
Pros/cons regarding making a cut out in the bonnet? (not worried about water/dirt etc.)
Before/after rolling road measurements?

Ideally i would like to find a carbon bonnet and make nice cut out.
But i can't find one.... :(

Michael
Twincam
10-12-2009, 16:41
Id like to know about this as well :D

Nevermind a carbon bonnet, Id even be happy with a fibreglass one :cry:

What size trumpets and which air filter are you using michael?

Richard
geesus
10-12-2009, 17:24
andy did a back to back RR test on his f4r'd itb's mk1....


Right we had the car RRed with bonnet off and it made 238.9bhp and then with it on and it made 218.5 bhp

proof is in the pudding

so in reality mine is prob making about standard power with the bonnet on! lmao

time to cut a big hole in it methinks! :roll:
cliolord
10-12-2009, 19:53
hmmm, very odd and quite remarkable power differences there. No way in hell im cutting my bonnet appart though im affraid! It'll do 8)
Evogone
10-12-2009, 20:24
Airbox.....All the Maxi cars had these and Skuttle inlet.
Wobba
10-12-2009, 20:39
Airbox.....All the Maxi cars had these and Skuttle inlet.

Aye that's what I was going to say. A big fat carbon skuttle intake!
cliolord
10-12-2009, 21:24
Airbox.....All the Maxi cars had these and Skuttle inlet.

Aye that's what I was going to say. A big fat carbon skuttle intake!

Would be excellent, but would not work on the length of intake im currently running. Gurt chunk of torque like :D
Laine_16v
10-12-2009, 23:01
lol gaz you crack me up!

**** that im chopping my bonnet up for another 15bhp asap then!!!
stan
11-12-2009, 00:20
:lol:


Gaz youve got so much length it hurts!
sideways danny
11-12-2009, 00:42
use some KY
Wobba
11-12-2009, 01:23
:lol:


Gaz youve got so much length it hurts!

You know from experience Stan ? :D :D
stan
11-12-2009, 08:47
oh yes!!
cliokongen
11-12-2009, 08:52
andy did a back to back RR test on his f4r'd itb's mk1....


Right we had the car RRed with bonnet off and it made 238.9bhp and then with it on and it made 218.5 bhp

proof is in the pudding

so in reality mine is prob making about standard power with the bonnet on! lmao

time to cut a big hole in it methinks! :roll:

Let the bonnet cutting frenzy commence! :D
Thats a huge difference!
cliokongen
11-12-2009, 08:54
Airbox.....All the Maxi cars had these and Skuttle inlet.

TBH i dont think there is room for an airbox.
I know the Maxis used an air box. But the ITB's they used almost looked similar to bike bodies - shorter, giving more room to the air box.

Michael
Laine_16v
11-12-2009, 09:12
i know my air filter rubs in the inside of the bonnet and the trumpets are literally 2-3cm away from the inner skin too, defo chop time
G33R7
11-12-2009, 09:31
http://www.renaultclio16v.nl/download/cliogra/1351.jpg
geesus
11-12-2009, 11:08
i know my air filter rubs in the inside of the bonnet and the trumpets are literally 2-3cm away from the inner skin too, defo chop time

mine too, and i've only got a single skin fibreglass bonnet! :shock: