Apexi Pod Filter From Panel Will I Need A Retune ?

[Longz]

Hi all

Pretty much changing from a panel filter to Apexi pod filter

my car is a GTR34 , what i wanted to know is would i need extra piping etc ? i was gonna get a custom air box around it but was wondering since my car has been dyno tuned already

Boost controllre

Power FC

Cam pully's

will it effect the fuel \ air ratio in anyway since i will be putting in 2 pods instead of the panel

hope that doesn't confuse anyone cause it confuse's me lol

Any advice would be appreciated

Thanks.

[mad082]

it should be fine. if you are worried simply get them to put it on the dyno and check the AFRs.

[Wacky Dee]

from memory it only affects the AFRs by a miniscule amount something like 0.1 or 0.2 parts eg. if your AFRs were 11.5:1 before they might go up to 11.7:1 with a good pod setup..

So it depends on your tune really ... for any "safe" tune eg. 11.5:1 AFRs, I wouldn't stress about it. But if your tuner squeezed every bit of power he could and put you on something like 12:1 then I'd get them to run it on the dyno with pods, recechk the AFRs and listen for pinging

Then again, you're driving a R34 GTR Vspec ... don't be stingy, get it checked on the dyno.

On a side note ... unless you're looking for that whooshing sound or your car makes more than 300rwkw, stick with the panel filter as it more than provides enough airflow as I'm sure many highly modified GTR owners here will testify to. PODs are mostly for the wank factor and the whooshing noise for most people.

[mad082]

just thinking about it, it shouldn't really alter AFR's at all. the reason being that at any given air flow rate the ecu should be putting in the same amount of fuel. if pods allowed more air into the intake the AFM would register this and inject the correct amount of fuel that it was tuned for. any difference in AFR's would purely come down to any turbulence where the AFM isn't able to 100% correctly measure the amount of airflow.

[Wacky Dee]

hm yeah that's what I always thought too but I've heard from more than one reputable tuner that they can increase the airflow slightly and throw the afrs out of whack ..it doesnt make sense to me either

[baby34]

Pretty sure it wouldn't make much difference.

Not really worth the $200 for the touch-up tunee

[Sammy B]

Have done that in the past numerous times, I wouldn't bother.