Bonnet cooling

[SurreyED30]

Has anyone on here drilled for example 100mm holes in there bonnet to cool the bay down?

Just come back from Si-R32's place, about 50 minutes drive at 70-80mph and my engine bay is like a volcanoe  

Or something like them triangle things you see on the tele fitted to the bonnet to get tonnes of cold air into the bay

I haven't got the slit east clue how to photoshop but I recon focus rs style grills would look okay to the sides of the bonnet

Jake

[clapton712]

Are you showing as over heating on your gauge??

[Sie]

Work in progress



Still needs painting hope to sort soon. They are fiesta rs turbo vents, did look at the square mk2 focus items.

Simon

[Sie]

Another pic + a little helper.




Simon

[SurreyED30]

No gauge is spot on, engine bay is always mega hot.

There's no issues with the car at all and I've checked a few other mk5's at meets aswell. All travelled roughly the same distance and the same temp bays.

 I would personally like mine cooler, I do like your bonnet mate   ^ second picture has me sold with the idea if you don't mind me coping

[scopes]

It really suits that colour ! Very much like an RS, So now looks like an RSGTI" 

[Little_Dave]

Think somebody on here did vents on a carbon bonnet too? Maybe hurdy?

[SurreyED30]

I thought vents would looks the nuts on a mk5  defo going to do this!

side where did you get the vents and how hard was it to cut and bond them in place

[Sie]

Used a fiesta rs turbo bonnet, cut the vent frame out leaving 15mm of bonnet left and slow cut the wholes in till the right size and they have been spot welded up underneath. Just take your time, followed a mk1 rs fitment guide a lad did.

Will get some pics from underneath.

Simon

[SurreyED30]

Thanks mate that would be great  I'm defo doing this, looking at ducts and fitment online now 

[betty_swollox]

Another pic + a little helper.




Simon

that looks insane mate. JEALOUS!

[rich83]

I cant see those grills making a jot of difference to cooling

[MC71]

As above, Not sure on the efficiency either but I'd like to be proven wrong. Not sure if it would be best to get air into the bay to aid cooling (if such a thing would help) or to get the hot air out quicker. 

"If" I decide to add a carbon bonnet this it the one I'd go for......

C/F FTW.....

http://www.carbonmods.co.uk/Products/Carbon-Fibre-NACA-Vent__CMNACAMID01.aspx

I'm pretty sure NeilM has one on his track puppy and it looks the business. 

[biffobear]

Can you get the kits for the bonnet hinges that make the bonnet sit higher at the back to let the hot air out?

[Viking]

Had to double check there, as I thought I'd logged into corsaboi.co.uk by mistake...