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Old 04-30-2014, 01:11 AM   #211
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Quote:
Originally Posted by bama_focus View Post
Had my gap taped for over 10k miles and I don't believe it has made any difference at all.
This. After installing a Steeds CAI I don't believe a gap would make one bit of difference. Tolerances in these vehicles just aren't that tight. Let alone a tolerance of air flow at the intake creating a vehicle that jerks, stutters, bogs, etc.
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Old 04-30-2014, 08:18 AM   #212
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I just noticed this topic, don't know how I missed it this long...

One thing that might be at play here is a flexing as the engine is revved during acceleration causing whatever gap to open or close. If the gap was fixed there would seem to be less surging effect and only a reduction in power due to higher air temp, but if there is flexing then the ECU might have problems maintaining proper mixture due to rapid changes in air temp and air flow resistance.

The proper design would have had rubber boots to connect between the airbox and snorkel an clamped for better seal -- the design for this connection is pretty pathetic if you ask me.

I suspect I have minimal gap issues as I've had no performance issues like this, but I will investigate and see what gap I have. If I find a gap I'll likely use a rubbery tape so there's some compliance in case there is a flexing effect when the engine is revved.


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Old 04-30-2014, 08:24 AM   #213
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Quote:
Originally Posted by evilO View Post
This. After installing a Steeds CAI I don't believe a gap would make one bit of difference. Tolerances in these vehicles just aren't that tight. Let alone a tolerance of air flow at the intake creating a vehicle that jerks, stutters, bogs, etc.
many people here have closed that gap and reported significant improvement, but the question everyone needs to confront is why is everyone but the factory trying to fix the new car they are paying their hard-earned money for?
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Old 04-30-2014, 08:32 AM   #214
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In the heat of summer it makes a noticeable difference. In cooler or winter months, not so much. Dan's theory was the engine was sucking in hot air from the engine compartment and it was screwing up the mixture/timing. Sounds plausible as anything to me.
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Old 04-30-2014, 08:33 AM   #215
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Quote:
Originally Posted by bama_focus View Post
Had my gap taped for over 10k miles and I don't believe it has made any difference at all.
The problem is that we don't know what size gap you had before you taped it. If you already had a relatively tight seal, then I would not expect any change.

The tolerances on these cars vary greatly. Dan knows his stuff and the theory behind the improvement is sound. Owners with a significant gap are drawing in warm air from under the hood.

In addition, the torque as you launch off the line may cause the motor to move and the gap may widen as you first take off.
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Old 04-30-2014, 08:29 PM   #216
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I just did this today on a 2014. Put some black duct tape over the gap, sealed it up with the plastic wrap and I definitely noticed less jerky acceleration at low speeds and take off. It didn't cut my 0-60 in half, but this certainly helped me with a smoother ride especially at low speeds. The car drives like it should now. Honestly, I'm impressed by this literal patch. Seriously, this needs to be the first thing that pops up when people visit the mk3 thread for the first time. I've been around here for months and I've never seen this mentioned before. Sticky this stuff guys, or put it in the DIY section.
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Old 04-30-2014, 11:19 PM   #217
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My car always bogged down and was hesitant accelerating when coming to a stop after having exited the highway. I always wondered why it was only after driving on the highway!

Well, I checked my air inflow and my car has 4-5mm gap. Can't wait to tape it up and test it out! Thank you!
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Old 05-01-2014, 12:06 PM   #218
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How's this for throttle response? Put your foot down sooner.
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Old 05-01-2014, 02:46 PM   #219
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Quote:
Originally Posted by bama_focus View Post
How's this for throttle response? Put your foot down sooner.
Not so good.
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Old 05-02-2014, 04:24 PM   #220
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So i decided to check and see if i had the gap on mine this morning. I have a 2014 SE. I pulled back the rubber flap and defintely had a noticable gap. I used some electrical tape to cover it up. I have only driven about ten miles since doing it so i havent seen a huge difference but will report back after i have put some more miles on it.
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