Filtre en CONE
Jeu 12 Avr 2007, 8:12 pm
D'après ce que le gars dit cé pas trop hot ces filtre la!
I worked for race teams for years. One Toyota Atlantic teem I worked on the driver thought the car was lossing power from the start of a race to the end. So we did leak down checks when we got new engines in. 3% leak down- New. At the end of a race we checked it again and we got 29% leak down. So we sent the head to get the valves done and checked the leak down when the head returned. 4%- Leak down. At the end of the next race 31%- leak down. So we put three dabs of grease down streem of the air filter. "K&N" The next engine came in with 3%-leak down new. And at the end of the race 32%- leak down and the dabs of greas were full of grit. So we changed the filter to a oiled fome filter. 3%- leak down new and at the end of the next race? 18%-leak down. Better still not good. So we made a new air box and used a Mustang GT stock air filter. 3%-leak down new at the end of the next race? 1%- leak down yes I said "1%". The rings bed in and the engine seals up. We went from changing a engine at 300 miles with 29 to 34% leak down to. Changing the engine at 800 miles with 7% leak down.
So the bottom line is. You mite gain a littel more power (1 to 2hp) but it will not last long and befor you know it you will have a LOT less.
I work on 944s only and when I tare down a 944 engine that has had a K&N filter the cyclenders have a LOT of scores from dirt that got through the filter.
If you dont beleve me do the grease test your self. Take out the filter and put a dab of grease in the air box. Then put your K&N filter in and dive the car for a few weeks and pull the filter out and check the dab of grease.
FranK
I worked for race teams for years. One Toyota Atlantic teem I worked on the driver thought the car was lossing power from the start of a race to the end. So we did leak down checks when we got new engines in. 3% leak down- New. At the end of a race we checked it again and we got 29% leak down. So we sent the head to get the valves done and checked the leak down when the head returned. 4%- Leak down. At the end of the next race 31%- leak down. So we put three dabs of grease down streem of the air filter. "K&N" The next engine came in with 3%-leak down new. And at the end of the race 32%- leak down and the dabs of greas were full of grit. So we changed the filter to a oiled fome filter. 3%- leak down new and at the end of the next race? 18%-leak down. Better still not good. So we made a new air box and used a Mustang GT stock air filter. 3%-leak down new at the end of the next race? 1%- leak down yes I said "1%". The rings bed in and the engine seals up. We went from changing a engine at 300 miles with 29 to 34% leak down to. Changing the engine at 800 miles with 7% leak down.
So the bottom line is. You mite gain a littel more power (1 to 2hp) but it will not last long and befor you know it you will have a LOT less.
I work on 944s only and when I tare down a 944 engine that has had a K&N filter the cyclenders have a LOT of scores from dirt that got through the filter.
If you dont beleve me do the grease test your self. Take out the filter and put a dab of grease in the air box. Then put your K&N filter in and dive the car for a few weeks and pull the filter out and check the dab of grease.
FranK
Jeu 12 Avr 2007, 10:06 pm
le gars quitravaille en Toyota Atlantique a écrit: So we changed the filter to a oiled fome filter.
si y'avais huilé son K&N p-ê il aurais pas eu 30% de fuites... mais il aurait pas fait mieux que le foam...
Ven 13 Avr 2007, 1:05 pm
nous on utilise du filtre en mousse verte que l'on place par dessus le cone huilé. la mousse verte est concu pour etre huilé si utilisé seule, mais on la huile pas, on huile seulement le cone. comme ca la mousse verte est facille a lavé on peut la lavé souvent et le conne a pas besoin d'etre lavé.
le conne doit etre huilé corectement et il ne faut pas le lavé pour rien, il est plus efficace lorseque légerement bouché.
le conne doit etre huilé corectement et il ne faut pas le lavé pour rien, il est plus efficace lorseque légerement bouché.
Ven 13 Avr 2007, 5:34 pm
Ouais Serious GT tu as trouvé drette mes sources! donc d'après leur test qui est trés véridique le APEXI POWER intake serait le best ou encore avoir une combinaison comme Mad max mais faut pas oublier que plus il y a d'obstacle pour l'air plus il y a de restriction donc moins de flow.......
Ca reste une pièce importante a ne pas trop négliger et qui doit etre a la bonne place cé pas toujours évident...
FranK
Ca reste une pièce importante a ne pas trop négliger et qui doit etre a la bonne place cé pas toujours évident...
FranK