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Discussion Starter · #61 ·
Carrying on!

With the pump all hooked up I could start routing the rest of the wiring and the water meth lines themselves. I opted to use the headlight washer hose seen as it was in the vicinity and it saves me tapping into the washer fluid tank creating more work. I hated the headlight washers making a mess when they spray anyway so this way was a win win for me!

Secured the AEM hose to the headlight washer hose with a bit of silicone tubing and clamp to get a tight fit.

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All hooked up, I ran the hose back up through the nearside fender and across the bulkhead. Also took the time to tessa tape all the wires for a clean OEM look.

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When it came to the nozzle the only real option was in the air intake hose before the supercharger which is a little unorthodox but the V6T boys still seem to be getting decent gains from the same location. I had to revert back to the OEM intake hose as I haven't figured out a good way of getting a clean cut through the silicone, I tried with different drill bits on a spare bit of silicone hosing that was laying about but it ended up looking like a 12 gauge had went through it lol. 🤦‍♂️

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Discussion Starter · #62 ·
Moving on

rest of the job was pretty straight forward,

replace intake hose

screw in nozzle

run wire to fuse box using a ”fuse piggyback“ I personally paired it with the clutch position sensor

place the LED and controller where you see fit

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And there’s the finished product, haven’t managed to do any testing yet as very shortly after this was installed my charge cooler water pump shat it’s nickers, however I may do a follow up once I’ve driven it around for a few hundred miles.

any questions fire away 😁
 

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Discussion Starter · #63 ·
A quick Christmas mod!

So it seems I got bored again and decided to do a cheap and easy cold air feed directly to the convenient hole at the bottom of the OEM air box. I had already removed the intake flap that usually resides there a year or two ago, this just pops out with a little force and can be replaced if required.

First off I needed to dremel off the 5 ribs you can see in order to get the hose to fit over and get a good clamp on there.

Before:
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After:
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While the air box was removed I gave it a good clean and slapped on some gold reflective tape to hopefully keep some of the engine heat away 😁

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Now in order to get a good fit you may have to do some trimming to the headlight support bracket, because I used a 3” hose there wasn’t enough clearance, this may be different for the facelift guys however.

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  • Headlight bracket trimmed
  • Hose clamped on and routed
  • Trumpet added to the end
  • Bumper back on

And Bobs your uncle! Merry Christmas Folks!
 

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Interesting. I did wonder why the airbox has an 'extra' hole at the bottom for no obvious reason.

My though was that wouldn't the air coming in from the top just go out the bottom hole as it's the least resistance?

Will be interesting to see if the pumps more air in to the engine and what, if any, affect it has.

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Discussion Starter · #65 ·
It’s there as a secondary air inlet, when the engine gets past a certain RPM the valve (if it hasn’t been removed) opens up to allow additional air to be drawn into the engine, I’ve actually seen some A5s that have an OEM hose that attaches to the bottom inlet (I’ll attach pic). Don’t think the air will go in one way and out the other though, probably just turbulence in the air box.
It does seem to have dropped the intake temps a little if my P3 gauge is anything to go by, however that could just be a fluctuation in ambient temps.
All in all I can see it doing more good then harm and for £15 and a couple hours of your time it’s no biggy, even if the gains are minimal, definitely wasted my money on more expensive “upgrades“ haha!

Do you know if you can measure the air flow through VCDS? Might try and get a comparison if so.
Interesting. I did wonder why the airbox has an 'extra' hole at the bottom for no obvious reason.

My though was that wouldn't the air coming in from the top just go out the bottom hole as it's the least resistance?

Will be interesting to see if the pumps more air in to the engine and what, if any, affect it has.

Sent from my SM-G985F using Tapatalk
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Hi Mate, are you still running on the H&R OE Springs? Noticed you said you were going to replace them. Just wondering what the ride is like after a few years on them? Any issues with any other parts of the suspension needing replaced?
 

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Discussion Starter · #67 ·
Hi Mate, are you still running on the H&R OE Springs? Noticed you said you were going to replace them. Just wondering what the ride is like after a few years on them? Any issues with any other parts of the suspension needing replaced?
Hi, yes still running the H&R springs but with Bilstein B12 pro dampeners/shocks, I noticed the OEM shocks were pretty much useless when I swapped the springs so had them swapped out soon after. The ride is pretty much perfect now and I’ve had no problems since, cheers.
 
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