External induction a problem at high speeds?

[G3 NYX]

Hey guys
I'm just about to cut a hole in my bumper and have some ducting going to my air filter.
I was wondering if it was going to damage the engine if I was going motorway speeds?
I had a friend say it was fine but I don't trust him

The bore is 102mm, don't worry it's going to be behind the grill, so it won't be seen.

Cheers

 

[TheEvilGiraffe]

If you're cutting the bumper at motorway speeds, you should really wear a crash hat and a hi-vis jacket. Probably best to get someone else to cut it... or stop first.

 

[Gouldy]

id recommend some sort of harness too

 

[scotty2hotty81]

And your friend said it would be fine? I wouldn't trust him either!

 

[Joe#]

I wouldn't recommend this tbh, it will made sod all difference and looks crap

 

[marinemackay2003]

wont make any real gains tbh

however it will not damage the engine

 

[G3 NYX]

It's going behind the lower grill, not actually in the bumper, I've decided that I'm not cutting anything or I'll regret it.

 

[Sam@NP]

Whats the thought process behind it?

 

[G3 NYX]

I'm not a car nut so I couldn't give you a technical reason why
I've just seen loads of people doing it and I am going to be taking my car on the track a few times this year, as well as a 2500 mile road trip around europe.

I have a list of mods to do and this was the cheapest

 

[Goodj]

It is also one with the least point to it.

 

[MarkCup]

It is also one with the least point to it.

Doesn't the fact that it's drawing air from outside the engine bay benefit it at all? Avoiding heatsoak etc.?

 

[Jonny1*2]

it might, but it would be minimal really. Most standard setups put the cafs in the coolest part of the engine, so it won't affect it much. Plus you don't really want air to be pushed in as such. Ever tried running into the wind, breathing is hard work.

 

[G3 NYX]

Doesn't the fact that it's drawing air from outside the engine bay benefit it at all? Avoiding heatsoak etc.?

My question exactly!

 

[Goodj]

Doesn't the fact that it's drawing air from outside the engine bay benefit it at all? Avoiding heatsoak etc.?

Well, to a small degree, but a panel filter would give greater results and not require any messing about

 

[G3 NYX]

Well tell you what, I'll do it and report back if it makes f*** all difference.

 

[Kam.]

Plus you don't really want air to be pushed in as such. Ever tried running into the wind, breathing is hard work.

ha ha ha I needed a laugh today.

 

[Fred@BTM]

wasting your time

 

[Jonny1*2]

ha ha ha I needed a laugh today.

Welcome

 

[G3 NYX]

wasting your time

Tis what I do best

 

[Will.]

Plus you don't really want air to be pushed in as such. Ever tried running into the wind, breathing is hard work.

AFPMSL!!!

 

[mace¬]

I've just seen loads of people doing it

Alot of people have probably done your sister so would you?


But if you are going on track the most valuable way you can spend any cash is on tuition.

 

[G3 NYX]

This is what this chap has done right?

 

[Tutuur]

brakeducts:rasp:

 

[G3 NYX]

brakeducts:rasp:

I know thats what the foglights are for, but the one next to the tow eye?
In my car the rad is right behind that spot so it would have to be the other side...

 

[Tutuur]

oh, sorry! didn't see it in the picture....

i think it will be a slight improvement because it only get's fresh cold air. what i don't know is wat the (minimal) pressure build up due to ram-air does with the management. i know Renault uses a MAP instead of maf so maybe the slight increase in absolute pressure will tell the ecu to inject more fuel.

more fuel+fresh air= more power.

so in theory: yes it helps. in practise: you won't feel it

 

[Fred@BTM]

ram-air doesn't exist on a clio, the car cant go fast enough for "ram-air" to be achieved

 

[Silent_Scone]

low air feed is just asking for trouble - if I hadn't the original box on my ph1 when I hit the er "puddle" my engine would of been well and truly fucked. Do not bother

 

[drhowser]

low air feed is just asking for trouble - if I hadn't the original box on my ph1 when I hit the er "puddle" my engine would of been well and truly fucked. Do not bother

There was someone on here who did exactly that, ended up with three bent rods!

 

[G3 NYX]

Ah puddles... I think I'll shove the pipe somewhere else, there is actually space on the upper grill, ahh the joy of space on a non-sport...

 

[Silent_Scone]

no coming back from hydrolock

 

[Sam@NP]

ram-air starts to work at 160mph or something stupid like that.

 

[G3 NYX]

Must of been a hell of a puddle?

 

[G3 NYX]

ram-air starts to work at 160mph or something stupid like that.

Are you trying to say my car won't go that fast

 

[Sam@NP]

Are you trying to say my car won't go that fast

Easy, simply hurl it out a plane.

 

[Tutuur]

Hahahhaa ram air does indeed work from 160mph, but thats when you get an overpress. (ram-air) everything under it will just make the engine breathe better!

I don't know how big the puddles are in the uk but driving in with your bumper seems pretty though to me!

 

[Kam.]

I've seen airboxes that try to slow the air coming in to try to get denser air for the throttlebodies. Not sure how effective they are but its not ram air.

 

[Jonny1*2]

Hahahhaa ram air does indeed work from 160mph, but thats when you get an overpress. (ram-air) everything under it will just make the engine breathe better!

I don't know how big the puddles are in the uk but driving in with your bumper seems pretty though to me!

Kev06 had his caf running into the Arch and it sucked quite a bit up on a wet day. Bonnet scoop is best/safest I'd imagine

 

[G3 NYX]

Ok lads here we go. Prepare to FLOL at this epic bodge!

Car power seems the same
The car doesn't get hot any more... (as in the fan kicks in a lot later)
Your get some nice induction noise.

Yes, this is non-sport before anyone cries.
I should so write a guide.

Only problem now is I can't get to the dipstick without taking the grille off, I'll think I'll remove it for MOT's and services lol.

 

[Wild182]

I have a £60 carbon enclosed induction kit with a direct cold air feed to the foglight, i recently moved the cold air feed from under the bumper and felt a difference low end straight away. I don't know if this is a placebo affect or not as the difference is not dramatic but it defiantly feels smoother throughout the rev range.