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Air Flow
https://www.ausmini.com/forums/viewtopic.php?f=2&t=25455		 Page 1 of 2
Author:  Rikki [ Thu Nov 30, 2006 8:40 pm ]
Post subject:  Air Flow
Is it possible to some how duct air up to the carbs (twin SU's)?? Also can i cover the from grill area up or would there still be a need for ventilation??

Cheers
Author:  Spaceboy [ Thu Nov 30, 2006 8:48 pm ]
Post subject: 
you need air moving through the grille for cooling
Author:  Rikki [ Thu Nov 30, 2006 8:54 pm ]
Post subject: 
Spaceboy wrote:
you need air moving through the grille for cooling


Cooling for???? can the gaps just be smaller??

Cheers
Author:  Steve.E [ Thu Nov 30, 2006 9:06 pm ]
Post subject: 
Why do you want to duct air to the carbs?
Author:  Hanra [ Thu Nov 30, 2006 9:07 pm ]
Post subject: 
He mite have GLOSSY MAGAZINE SYNDROME and wants to rice it up?
Author:  Rikki [ Thu Nov 30, 2006 9:16 pm ]
Post subject: 
Steve.E wrote:
Why do you want to duct air to the carbs?


So i can get the car airbrushed, cant put a nice airbrushed picture over ugly holely grill.

Cheers
Author:  Hanra [ Thu Nov 30, 2006 9:17 pm ]
Post subject: 
Yep, thought so!!!!
Author:  min13k [ Thu Nov 30, 2006 9:18 pm ]
Post subject: 
i had a mate do this and actully found that the fuel consumption went up and the power down dont ask me why but thats what happend
makka
Author:  Rikki [ Thu Nov 30, 2006 9:22 pm ]
Post subject: 
Hey makka,

Got any pics???

Cheers
Author:  Lillee [ Fri Dec 01, 2006 8:10 am ]
Post subject: 
That sounds like the intake is restrictive and making the darbs run rich hence, no power and poor mileage.

This topic has been discussed thoroughly here on Ausmini and I suggest doing a search on words like "cold air intake" etc. Bottom line is that it doesn't work on minis or has very very little (if at all) gain.

Changing to a bigger carb with a better intake will get you more than trying to duct cold air...
Author:  Mike_Byron [ Fri Dec 01, 2006 8:53 am ]
Post subject: 
Rikki

The mini cooling system - engine cooling - is only just adequate. It relies on big volumes of air coming through the grill with the radiator fan pushing it through the radiator and that air exiting out under the passenger mud guard.

If you close off the grill or replace it with some sort of enclosed design, your car will constantly overheat. What you contemplating may work on a show car that is simply an ornament trailered to and from shows. It will not work on a car that is been driven.
Author:  1018cc [ Fri Dec 01, 2006 10:39 am ]
Post subject: 
^^^^^ What he said. The other day we had 37°C heat up here and my rad (no overflow) dumped the most amount of water i have ever seen it dump on the ground when I stopped. I make sure I fill it everyday to keep it topped up (if it needs it) and this is with the entire grill open.

I used to run a splash guard for the dizzy for the rain but I have taken it off to allow more air in.

It all depends, are you willing to maybe overheat your engine and warp the head etc just so it looks cool?

It would probably be fine if your car was a trailer queen that harly got driven and was only taken out of the garage to visit shows.

My 2c.
Author:  pristic [ Fri Dec 01, 2006 1:10 pm ]
Post subject: 
Wait a minute guys.
If he wants to block the entire grille (if that is THE goal) then cold air plumbing is not really what he is asking.
If cold air plumbing is what he wants then blocking the grille still impacts the flow and cooling.

So, what do you want to do? Have your grille a solid panel that has paintwork on it?
Have you thought about alternatives (ie/ a material that allows air to flow through but standing back a bit it looks solid?

Cold air induction doesnt work on a mini is how I understand it too.
The ambient temperature 50cm in front of the car will be the same as the temperature at the carby (air filter side) - interesting huh... so putting a pipe and pod setup to get air from under the front of the car, etc will do nothing except limit the amount of air you can actually have there.
Forced air induction is a different story. Ie/ a closed sealed plenum type setup with plumbing... lets not even go there.


So, you need airflow to cool your motor basically... blocking your grille will cause it to overheat.
Look at ways of hiding your grille but still cooling your mini.

Peter.
Author:  Rikki [ Fri Dec 01, 2006 5:45 pm ]
Post subject: 
Im not so much looking for forced induction (hence the change of the thread title), but more so makeing a grill with a few less gaps/holes to make a airbrushing job look a bit better.

Cheers
Author:  Mike_Byron [ Fri Dec 01, 2006 6:00 pm ]
Post subject: 
Yes a few of us realised that from the start, however, that doesn't change the fact that a mini has a barely adequate cooling system and the cosmetic changes you want to perform will have a very adverse effect of the mini's cooling capabilities. It will overheat.

Simply fitting a radiator fan will not help as that also relies on enough air flow being available to be pulled or push throught the radiator.

None of us can (nor do we want to) say "dont do this" But a number of us are saying its not going to work, if you do this, on a road going car. The caveat here is that unless you carefully consider and design adequate airflow into and across the engine bay and out throught the radiator and passenger front mudguard then you are going to have engine overheating problems.
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