CitybugBlog my107

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107oc store induction kit


  1. Anonymous said...
    hiya guys i have a C1 and really dont know how to fit the induction kit. any tips would be welcome!
    Guido said...
    wait untill 28/7/08
    I have made a little induction kit special.
    Anonymous said...
    I will be interested to see if one induction kit is better than another, there appears to be so many variations.
    Anonymous said...
    At Saturday, July 19, 2008 10:42:00 AM Guido said...

    wait untill 28/7/08
    I have made a little induction kit special.

    Still waiting ?
    Guido said...
    Then you weren't looking in the right place.
    Anonymous said...

    Smaller engined cars can actually lose power when an induction kit instead of an airfilter is fitted. It can be challenging to deliver COLD air (which carries more oxygen) to the engine as the temperature under the bonnet can get quite high and and a 20 degrees rise in temperature can rob you of up to 3% of your power!

    Under bonnet temperatures can quickly rise to double this. An intercooler can be added which is sprayed with Co2 and reduces the temperature of the air intake. It should be noted that in some small engine non turbo applications the car will feel less powerful with an induction kit - in these instances the best option is a direct replacement panel air filter which goes in the standard airbox.

    Sucking warm air in from the engine is a great way to lose power.

    Make sure you have a cold air feed pipe to get cool air from outside of the engine bay - cold air carries more oxygen.

    So the best air induction kits come with a cold air feed pipe and are fitted in an air box which shields the intake air from the high under bonnet temperatures – the best compromise between the standard air intake box and the induction kit. Some kits have a long pipe which the filter sits at the end nearest the bonnet which really does help cut down the noise and improves the intake temperature.

    Induction kits that protrude under the front bumper which claim to get more air forced in through the pressure built up on the front of the car as it cuts through air do not have significant power gains, other than the benefit of the cold air from outside the engine bay, - the RAM effect takes speeds up over 100 mph before a benefit is realised - they are however a great way to collect many botanical specimens of fly's, moths and bugs in the air filter!

    NB: Be careful where you site the cold air feed - the last thing you want is to be sucking water into the engine every time you splash through a puddle.

    If the induction kits air filter is enclosed in a box with a cold air feed, then more power can be obtained avoiding the hot under bonnet air (Carbon fibre boxes are very good for their heat shielding and durability). It also good to wrap a the exhaust manifold with a heat resistant material to keep the under bonnet temperatures down and tasteful vents can be added to the bonnet to take away the heat.

    Induction kits sometimes come with a guarantee of "more power". In reality though, the power gains are so small, on small engined cars, they would not be noticable in real life. Secondly the power increase tends to be at the higher end of the rev range and your low down power band will suffer.

    So to summarise, if you have a large engined car (or an engine with good low to mid range torque) fit an induction kit with a cold air feed. If you ahve a small engined car or one with little power in the lower rev band fit a direct replacment sports panel air filter.
    Ulanthorn said...
    The funny part is that the default air filter box has already a cold air intake by factory default.

    Air comes from a intake in the front grill and is directet to the Filter Box intake.

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