Official OpenFlash Tablet FA20 Tuning Tech Discussion Thread

[ck-GT86]

Originally Posted by JPxM0Dz

For those asking about snorkel removal...

Just confirming that removing the fresh air snorkel will make a difference, yes?

.ck

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[topazsparrow]

Originally Posted by ck-GT86

Just confirming that removing the fresh air snorkel will make a difference, yes?

.ck

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Not likely any perceivable amount. The filter is more restrictive than the tubing.

[Shiv@Openflash]

Originally Posted by ck-GT86

Just confirming that removing the fresh air snorkel will make a difference, yes?

.ck

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Correct. From our dyno testing, we saw no appreciable gains with replacing a clean stock filter with a clean new foam filter from Perrin. But repeatable gains when removing the snorkel completely. The advantage of going with a drop in panel is more of a long term thing I think. The aftermarket ones will see less less restriction as they accumulate dirt.

Shiv

[CamryDS]

time to take the snorkel off of my TRD intake and see what I can get!

[xDanger_208x]

Originally Posted by shiv@vishnu

Correct. From our dyno testing, we saw no appreciable gains with replacing a clean stock filter with a clean new foam filter from Perrin. But repeatable gains when removing the snorkel completely. The advantage of going with a drop in panel is more of a long term thing I think. The aftermarket ones will see less less restriction as they accumulate dirt.

Shiv

So just remove it completely? What kind of gains?

[Shiv@Openflash]

Originally Posted by xDanger_208x

So just remove it completely? What kind of gains?

Yes, we removed it completely and saw a repeatable 2-3hp gain above 6000rpm.

[mid_life_crisis]

In other words, nothing anyone can actually feel NA but an indication that it might benefit a FI installation.

[Shiv@Openflash]

Originally Posted by mid_life_crisis

In other words, nothing anyone can actually feel NA but an indication that it might benefit a FI installation.

All these little 2-3hp gains do add up into something you can feel. For FI application, I'd probably nix the hold stock airbox completely since it will probably be a restriction at those much higher airflow levels. But that remains to be tested.

[Grip Ronin]

shiv, i edited my snorkal months ago by cutting it back to a 2.5 in opening and putting in a v stack, wouldnt i see the same gains but have the air accelerated in by a smooth entrance like this??

[Decay107]

Originally Posted by shiv@vishnu

Yes, we removed it completely and saw a repeatable 2-3hp gain above 6000rpm.

Shiv,

Just curious, were these dynos done with the hood open or closed?

[Fizz]

Originally Posted by shiv@vishnu

Yes, we removed it completely and saw a repeatable 2-3hp gain above 6000rpm.

Hmm...personally I don't think it would be worth the time and effort to remove the bumper just to get to the snorkel...and only end up with 2-3hp at above 6000rpm. But the good thing is that it doesn't cost any money

[JPxM0Dz]

Originally Posted by Fizz

Hmm...personally I don't think it would be worth the time and effort to remove the bumper just to get to the snorkel...and only end up with 2-3hp at above 6000rpm. But the good thing is that it doesn't cost any money

You don't need to remove the front bumper to get at the snorkel

This is how I removed mine... The only difference is I found it easier to pull mine out from the drivers side verses the passengers side as done in the DIY

http://www.ft86club.com/forums/showthread.php?t=15376

[fstlane]

Originally Posted by JPxM0Dz

You don't need to remove the front bumper to get at the snorkel

This is how I removed mine... The only difference is I found it easier to pull mine out from the drivers side verses the passengers side as done in the DIY

http://www.ft86club.com/forums/showthread.php?t=15376

I just walked in from the garage after removing the snorkel and it's literally a 10 minute job if you follow those directions. The bumper cover is quite flexible and there's plenty of room to snake the snorkel out. I haven't decided if I should leave it completely off or chop it off after the first mount. I would prefer to pull slightly cooler air from outside of the engine compartment but not at the expense of any performance gains.

[Hanni_0176]

Originally Posted by shiv@vishnu

Correct. From our dyno testing, we saw no appreciable gains with replacing a clean stock filter with a clean new foam filter from Perrin. But repeatable gains when removing the snorkel completely. The advantage of going with a drop in panel is more of a long term thing I think. The aftermarket ones will see less less restriction as they accumulate dirt.

Shiv

Second time I'm quoting you with an "I'm curious" bit, but anyways

When I removed the stock air filter and replaced it, I could visually see and feel (by touch) a notable difference in texture, which I assumed would make a big difference in air restriction/flow. I also do feel a difference in throttle response (not necessarily hp or tq) in the 3k-5k power band, particularly between going from light/partial throttle to full throttle, and my butt dyno can feel a decent increase in pull above 5k rpm.

I can definitely see how removing the snorkel would increase the air flow, but the question I have is... wouldn't this increase the ambient temps some? It looks like the snorkel bends around to try and pull in air from further away from the engine bay, whereas without it, the entrance is much closer to the engine bay. Again, I'm just curious. Removing the snorkel seems pretty simple, and I may end up doing that in the next couple of days, for science...