Carb heat sheilds
Turbo Mini Forums

Would anyone be interested in a ally or steel one?

I'm looking at getting some made up.

Alex

AlexF

an ally one would be nice. as long as it aint any bigger than a standard one cos mines about 1mm rom the bulkhead.

yeah i'm interested.
ally or steel, not fussed.

““A turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.”” - Jeremy Clarkson

wont a metal one just pass the heat straight back on again????

think you need one which reflects heat away more like the original,
one of those turbo insulation kits might be a beter move

nope you'll see about 100 degrees c drop just from a single thickness of steel from one side to the other in terms of air temp.

Then you could always coat one side to reflect more heat etc etc

Alex

AlexF

be cool to have a heatsheild and also somewhere to locate a 12v pc fan that can create and air barrier (between the turbo and base of heatsheild) for say 5mins after switching off....

I folded one up from ally, works very well

Team Racing

I thought about that too iain...

but I couldn't find out the operating range a pc fan is happy to run in! Its going to get VERY hot back there and I don't think most pc fans will hack it.

But thats given me another idea!! hmmm anti-perc fan

Alex

AlexF

Yeah i spent ages looking for a fan that would cope but there is no saying that the fan couldnt be mounted to either side and ducted in. be good if the shield was double skinned so that the air could be ducted into the space between and provide a cooling film.

It might as well just cool the bottom of the carb..

alllex

AlexF

the old 5 gtt uses a fan to blow air at the base of the carb, and also cools the fuel lines

that engine bay is another hot example

Make sure you leave a hole/groove so you can get to the mixture screw, you don't want to be paying rolling road operators any more cash than you need to.

That should make life a little easier.

JF.

yeah i had to take a chunk out my std one to get to the mixture screw, even a nice hole to help you line it up would be good.

Just one thing, I understand 'fan' (monty turbos, R5GT, Uno turbo all had these) but what is an 'anti-perc fan'???
I'm guessing it's an abbreviation i've not yet figured out?

anti perc is what R5GTTs have to cool the base of the carb to aid hot starting

alex

AlexF

ok, lets take a guess on what PERC means...

Pissy Effort Renault Carburettor?

anti percolation I think is its real name

But your acronym is much more apt TD!

alex

AlexF

percolation?

Does the 5GT run on coffee beans then?

No Dave don't be silly...

they are MADE from coffee tins!

Alex

AlexF

Another fanny which might be usefull for this job is a 12v motorbike radiator fan. (sorry FAN!!!)

-MINI CLUBMAN 1380 TURBO-

hi alex, i would be interested in an ally heatsheild, when could you sort one and how much would one be?

xr3 i

any news on these Alex?

none as yet...

talking to a suplier at the moment!

alex

AlexF

Perculation is the reason a hot carb won't start.
The fuel in the chamber starts to evaperate and fills the carb and inlet manifold, this is what causes the hot start problem.
(Not lack of fuel in the chamber as many belive)

The metro turbo uses the solinoid vent on the carb, to let the vapour out, but as most of you know they can have reliability problems so everyone seems to block them off.

I was thinking of fitting an anti perc fan in the wing, ducting it and thermostatically controling it. But decided I didn't want any more shite in my engine bay!

I think the ideal solution for a mini would be a solinoid that opens when switched on. (And powered by a timer on switch off)

BTW I would like one of those shields Alex!