Post #18
It's the age old argument isn't it. If I fit a induction kit or filter will it increase throttle response and bhp and torque? To be honest in my opinion it really can be hit and miss and in the majority of case it's trying to find a balance.
It's all about volumetric efficiency I.e how much air can pass through a cylinder in a given cycle.
By using a induction kit with a cold air feed you in theory have increased the volume in the inlet side so a throaty sound and slight increase in torque should be found.
If you on the other hand throw a cone filter on the throttle body you have decreased the inlet side and you have a raspy sound which could increase power at higher RPM where you want the air in and out of the cylinder quickly.
The only true way to find out effects is rolling road tests. Before/after/using different kits etc.
I think that with the GTI-6 engine in standard form peugeot have tuned the engine to be at an excellent base at all required. Look at the exhaust manifold for example. They wouldn't manufacture an engine for us then to fit a cone filter and release an extra 15 horses
I can see what your saying with throttle response. Iv just bought mine and it has a viper induction kit connected to the standard air feed in the grille and a de cat with 2.5" stainless exhaust with centre box and rear silencer.
It's too load and I want the CAT back for mr MOT and because I think the back pressure would assist in torque at low revs.
I hope you guys will read this and either agree or politely disagree and explain why
The gain you might have achieved might by pyscological - a nice induction kit sound makes you feel like your going faster! Ohhh and has any one bought one of the throttle body's on eBay that's been polished and bored out slighty? Look quite nice. I'll try post the link.