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best way to fit a viper kit? connected CAf or not?



  black 3 door clio 1.2 16v
i always thought it would be better when moving if it was connected as it is feeding cold air then and not warm air being sucked in aswell
 
If its connected your relying on the air provided through the CAF ONLY.

When your in travel you dont get much heat soak anyway unless its in heavy traffic, warm day, or the cars been idling.
 
  Megane 225
Yea suppose u do have a point. Depends on how/where it's gonna be driven. CAF could act as a large straw if you drive through a flood and it's directly fitted to filter!
 
  Mk2 Golf GTI
also sounds better when not connected! I used to have mine pointing at it but about an inch away from being connected.
 

Cookie

ClioSport Club Member
If its connected your relying on the air provided through the CAF ONLY.

When your in travel you dont get much heat soak anyway unless its in heavy traffic, warm day, or the cars been idling.

Yep and when you're sitting in traffic with the standard airbox it's sucking in air from the n/s wheel arch.. big deal? :p

I have my Viper connected to the CAF and the trumpet is kind of lodged in the grill.
 
gonna set it up tomoz and put cAF in fog light... and go with the inch away method and see if its like what everyone is saying
 
  RS RIP
If its connected your relying on the air provided through the CAF ONLY.

When your in travel you dont get much heat soak anyway unless its in heavy traffic, warm day, or the cars been idling.


if you want to lose torque, keep the caf off... the thing was designed to have CAF connected. Feed it down to the wheelarch (bit of fiddling, wheel off archliner out) where you'll have a good feed of cool air

Try it with + without. Drive around a couple of days trying both situations and you'll see.
I've tried 5 different variations of airintakes, torque was best with cafs on, bigger cafs gave me the best of both, torque and top-end power.
Too much air (open airintake) was total s**t .. lost power all over.

Heat soak is also not a good thing.
Also the car is mapped for a certain amount of air and wo'nt know what to do with any more coming in..
 
If its connected your relying on the air provided through the CAF ONLY.

When your in travel you dont get much heat soak anyway unless its in heavy traffic, warm day, or the cars been idling.


if you want to lose torque, keep the caf off... the thing was designed to have CAF connected. Feed it down to the wheelarch (bit of fiddling, wheel off archliner out) where you'll have a good feed of cool air

Try it with + without. Drive around a couple of days trying both situations and you'll see.
I've tried 5 different variations of airintakes, torque was best with cafs on, bigger cafs gave me the best of both, torque and top-end power.
Too much air (open airintake) was total s**t .. lost power all over.

Heat soak is also not a good thing.
Also the car is mapped for a certain amount of air and wo'nt know what to do with any more coming in..

You dont need to tell me fella, my CAF post was based on pretty much the same experiences as you but i felt it made a lot better difference not connected. ;) :) plus what a roar it gave :cool:

GDi also recommend not to have it connected.

For me it just made it more free reving. Freed up the restrictivness.


Another school for thought:

If you have your CAF connected, you have to be going fast enough to get the air up the CAF pipe and into the IK. If your not, then where is it getting its air from? ;)


99% of the time heat soak is only a problem when your not in a position to give it beans anyway ie in heavy traffic going slow, idling
 
L

lenny85

well not to argue but the IK will suck in same amount of air on idle whether enclosed or not and when the CAF's connected its gonna suck air through the pipe. once up to speed there's just more pressure for the IK. basic physics really. The standard air box is enclosed with air feeds isn't it!
 
  172 FF
^also agree

its called negative pressure or suction if you will thus diffusion states air will go up the pipe with out external pressure.
 
well not to argue but the IK will suck in same amount of air on idle whether enclosed or not and when the CAF's connected its gonna suck air through the pipe. once up to speed there's just more pressure for the IK. basic physics really. The standard air box is enclosed with air feeds isn't it!

Its been proven that you dont get ram effect till silly speeds (130 mph sure it is?) and probably even less so through 1 metre of twisted piping

You stick your hand down at the end of your CAF and get someone to rev the engine. You will not feel any suction from the IK. It can only suck air in what is circulating in front of it and as your relying on speed to draw the cold air up the tube this makes it counter productive.

Maxogen are regarded as the best IK's and they dont use a cold air feed. They have their system pointing in the coldest part of the engine to draw air in as and when required
 


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