holes in the bonnet
Turbo Mini Forums

alright guys what is the best way of cutting holes into the
front of my standard bonnet ive mounted a sierra intercooler
just behind it so need the air flow

cheers stu

Hi,
Use a hole cutter. I know it sounds obvious, but the one you want is like a drum with teeth on the edge and a 6mm pilot drill in the middle.
Cheers,
Gavin :)

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or if you can get hold of a hole punch, it's two parts that wind together with a bolt and cut a hole ( unsuprisingly) only any good on flat sheeet tho.

cheers lads i did have a feelin you would say use that saw type cutter just wanted to
check before i butchered it

cheers stu

When using the hole cutter, get someone to spray water onto the area your cutting, prevents the paint from getting too hot and bubbling, you don't need to respray it just carefully touch in the edge with a small brush.

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1/4mile in 13.2sec @ 111 terminal on 15psi

nother thing put masking tape on the surface to stop the cutter skipping ,and i used a starret hole cutter ,keep rpm up and dont force it .

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

i used a pickaxe. fast and effective

your the man !!

Everyone knows that instructions only have to be read if the thing doesn't work....

as robert says starret cuter 51mm best size

masking tape the work area up

this saves burning the paint

heres mine finished off with 6mm copper wire sheathing split

hope this inspires you

why is 51mm the best size?
i was gonna use a smaller one and just have more holes.
kind of like turbo phils

stu

this is just my opinion stu

these 4 x 51mm holes reduced the engine block water temp by 10 deg on a hot summers day

you want a large surface area, there is not much room under the bonnet to accomadate this with the stays etc.... this is the best in my humble opinion

kinda borrowed from john flan in 1997 ish......

each to their own :)

wow! those 4 hole's had that much effect, now theres a good cheap mod!

im going to have the holes go all the way along the intercooler, so that the whole thing is getting cool air onto it!

My build thread..

http://www.turbominis.co.uk/forums/index.php?p=vt&tid=542985

i did the same on mine when i fitted my first intercooler back when it was a roundnose with a big ugly chavvy bonnet.

bud, you garage looks jut like mine, even the same garage door!

except my garage is full of shit.

yes more holes if you can get them in!

"the trap not to fall into".... is........ not crossing the borderline into CHAV! territory....lol

i think you did budd666, but you corrected it

looking at pics im going to do somthing similar to alex's frog mini, same sort of pattern and it should get the whole intercooler with cool air.
di you do your own bonnet benross or did you buy it? looks differnt!!

cheers
josh

My build thread..

http://www.turbominis.co.uk/forums/index.php?p=vt&tid=542985

On 9th of Nov, 2006 at 11:55pm BENROSS said:
yes more holes if you can get them in!

"the trap not to fall into".... is........ not crossing the borderline into CHAV! territory....lol

i think you did budd666, but you corrected it

Edited by Nick on 10th Nov, 2006.

josh all done by yours truley

notice the M3 stainless cap heads in the bonnets vents

it looks engineered not chaved!

budd.....LOL

Edited by BENROSS on 10th Nov, 2006.

Do you think i should mirror mine then for extra cooling?

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1/4mile in 13.2sec @ 111 terminal on 15psi

heres what some 72mm holes look like .

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

now that i like!

you can see somthing behind it proving its not just for show. plus on an otherwise std bonnet it looks class.

i like the look of that too...but how sturdy is it?? I can only imagine being out and public, and some chic screaming she wants her picture taken next to it, plops her big 'ol arse up and there goes your hood. Any kind of bracing behind it?

1994 Rover Mini

LOL maybe you need a bg sticker...

No fat chicks!

lol

it may b small but it purfectly formed
http://photobucket.com/albums/v340/1976_mi...roject%20turbo/