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DVs-Jimny wrote: TBH the Jimny engine bay gets too hot and that is bad for a cone filter and power (heat soak). If you do use one make sure you fit some ducting to get cold air. If your not going through big puddles then use the panel filter and get a hole cutter. Cut some 2" holes in the air box (make sure its the pre filtered side) and again use cold air ducting. Better improvements than a cone filter IMHO.
I had a modded ST24 (Bluefin chip, Janspeed decat pipe, Mongoose twin exit SS system, bigger TB etc etc. The KN cone was producing less power due to heat soak (dyno'd at Superchips), went over to the Pipercross Viper (has heat shield and ducting) and that gave a few extra ponies.
So do you reckon that having a snorkel which feeds nice cold air from outside might give a bit of extra power over a standard Jimny air intake?
I fitted a snorkle to my old V6 pajero, it made a big difference to throttle response along with big improvement on the lovely V6 roar, on the downside it also affected the single point injection LPG system which was fitted as there was too much RAM air blowing on the gas, the only cure I had for this was to restrict the air flow by about 50% so that the RAM air wouldn't stall the engine. Turning the snorkle head backwards did not work.
The engine ran fine with the snorkle on gas, but if the car was moving at any speed then it would stall, also with restricting the intake pipe I then noticed no power loss, and then ran as before the snorkle was installed.
However if I removed the restrictor (spray can lid with hole in) the power increase running on petrol and not gas was brilliant. But the fuel consumption was then terrible.
scrappybill wrote: But on a 1.3L low powered engine the gains will be minimal.
If the engine was around 80bhp its now around 83-84 may be more.(Cone filters generally give more cfm and bigger BHP) either way I had all-ready calculated / measured that the airflow from the panel filter can not exceed 420 cfm, but the new K&N can allow up to 880 cfm
The engine draws over 600cfm at 4000rpm (No filter or pipe attached). so the standard panel filter actually chokes the engine
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Looks like you need a new calculator. There is no way a 1300 can draw 600cfm at 4000rpm. Its more like 150cfm at 6500rpm.
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