Hi guys, after reading a fair bit of threads in regards to air intake on our Galant/ Legnums, I have a few puzzled questions in my mind.
My car has not arrived yet but it is coming in 2 weeks, cant wait.
First of all my VR4 has an aftermarket Apexi Air filter and a Blitz BOV ( I prefer 50/50 vent but this is straight to atmosphere) from its previous owner in Japan. Looks like the previous owner just wanted name brands to achieve his/her goal of increasing power.
I have read and understood the way a Karman Vortex air flow metre works in our VR4s and somehow agree with an aftermarket air filter disturbing air flow, confusing the ECu and eventually ending up with rich mixtures
.
The rampod unit looks fine but it is fairly expensive (around $150 for an air filter). But if they say it is specifically designed for Mitsu MAFs then either it is correct or another marketing tool to increase sales.
Now in the instance of having the Ram Pod or any pod, the question is will it suck in hot engine bay air and decrase performance?
Last year when I was buying a K&N pod filter for my 91 VR4 (the air filter box and meter assembly are a pain in the a*** as anyone who has owned a 6th gen VR4 will know exactly what I mean.
Anyway I was showing my engine bay to the guy at autobahn and he said that removing the box shuld improve air flow and increase power a little. I told him that it will suck in hot air if thats the case, he responded saying, "what are we after more air or less air into the cylinders? "
I thought for a second that he was saying that to sell the air filter but I had bought it already and never got into doing work into the air filter setup.
Long story short, the unshielded PODs DO suck up hot engine bay air, but why is there an intercooler in the car? To cool ithe intake charge air and make it dense. Hense if you were to pop a POD in the car then a sensible thing is to upgrade the cooler to result in cooler air temperatures.
One more thing with the BOVs is the factory option is always recirculating. The wooshing sound is for the drivers' and the audiences listening pleasure only. Any factory stock turbo car will have its exceess charge air fed back into the turbo via the bypass valve. This increases responsiveness of the turbo so it does not need to spool up harder and build up the necessary boost to keep going.
Anyway my suggestion to anyone that wants a BOV installed would be to have a 50/50 vent so the car doesnt stall or lose response after letting go of the clutch and still have the noise we are after. (it wont be as loud as 100% vent or the double vent like Turbosmarts unit.)
I had a 91 VR4 and started learing things about turbo, boost, etc.
bcoz I did not have money to buy a BOV, I used to take off the hose that feeds back into the turbo hose to have the whooshing sound. Of course the car drove terrible but it kept me smiling sometimes. lol, - such days.
The car that Im getting has different settings to what my ideal is, so I will start working on it once arrives.
Anyone that thinks differently or wanting to correct me, please do so.
If I am mistaken, please feel free to correct me as there are professionals on this site that have worked longer and harder than I ever will on Turbo cars.
I am not a mechanic or an engine expert, just an industrial design student that would like to share my experiences.
Thank you again.
Bilal
My car has not arrived yet but it is coming in 2 weeks, cant wait.
First of all my VR4 has an aftermarket Apexi Air filter and a Blitz BOV ( I prefer 50/50 vent but this is straight to atmosphere) from its previous owner in Japan. Looks like the previous owner just wanted name brands to achieve his/her goal of increasing power.
I have read and understood the way a Karman Vortex air flow metre works in our VR4s and somehow agree with an aftermarket air filter disturbing air flow, confusing the ECu and eventually ending up with rich mixtures
.
The rampod unit looks fine but it is fairly expensive (around $150 for an air filter). But if they say it is specifically designed for Mitsu MAFs then either it is correct or another marketing tool to increase sales.
Now in the instance of having the Ram Pod or any pod, the question is will it suck in hot engine bay air and decrase performance?
Last year when I was buying a K&N pod filter for my 91 VR4 (the air filter box and meter assembly are a pain in the a*** as anyone who has owned a 6th gen VR4 will know exactly what I mean.
Anyway I was showing my engine bay to the guy at autobahn and he said that removing the box shuld improve air flow and increase power a little. I told him that it will suck in hot air if thats the case, he responded saying, "what are we after more air or less air into the cylinders? "
I thought for a second that he was saying that to sell the air filter but I had bought it already and never got into doing work into the air filter setup.
Long story short, the unshielded PODs DO suck up hot engine bay air, but why is there an intercooler in the car? To cool ithe intake charge air and make it dense. Hense if you were to pop a POD in the car then a sensible thing is to upgrade the cooler to result in cooler air temperatures.
One more thing with the BOVs is the factory option is always recirculating. The wooshing sound is for the drivers' and the audiences listening pleasure only. Any factory stock turbo car will have its exceess charge air fed back into the turbo via the bypass valve. This increases responsiveness of the turbo so it does not need to spool up harder and build up the necessary boost to keep going.
Anyway my suggestion to anyone that wants a BOV installed would be to have a 50/50 vent so the car doesnt stall or lose response after letting go of the clutch and still have the noise we are after. (it wont be as loud as 100% vent or the double vent like Turbosmarts unit.)
I had a 91 VR4 and started learing things about turbo, boost, etc.
bcoz I did not have money to buy a BOV, I used to take off the hose that feeds back into the turbo hose to have the whooshing sound. Of course the car drove terrible but it kept me smiling sometimes. lol, - such days.
The car that Im getting has different settings to what my ideal is, so I will start working on it once arrives.
Anyone that thinks differently or wanting to correct me, please do so.
If I am mistaken, please feel free to correct me as there are professionals on this site that have worked longer and harder than I ever will on Turbo cars.
I am not a mechanic or an engine expert, just an industrial design student that would like to share my experiences.
Thank you again.
Bilal
