Engine Tuck/Shave/Dress Up

[rhanson713]

I want to clean up this extremely tight engine bay, and try and clean it up a little. I want this to mostly be DIY. Any suggestions? I'm going to repaint the Y-Pipe black, and order red silicone boost hoses. Any relocation ideas/deletes that won't affect performance?


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[cjt671]

Common theme for b5 is battery relocate then throw coolant res and power steering reservoir in secondary fire wall. Never really seen an abs relocate.. just deletes.. have you seen a4robs car?

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[rhanson713]

I have not seen his. I do want to get rid of the factory air box for more space, but I don't want to lose hp from taking in hot air.


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[Trb1]

ICM delete and coil conversion + airbox "delete". Get a cone filter if you want to open up space. I know people will hate on that idea, but they've always worked just fine for me. Just make sure it isn't oiled.

Do the ICM delete the solder method way, and tuck all the wiring back into the harness. Then cut and solder on the new connectors for the actual coil packs. don't run all of those ugly conversion plugs.

N80 can be unhooked/plugged from the lines and the solenoid just left plugged in and tucked away (if there isn't any emissions testing in your state). Same goes for the N249. You can relocate that underneath the intake manifold to hide it. I would advise against deleting it though.

I think a nice IE fuel rail really cleans up all the unnecessary hard lines on top of the motor too. That gets pricey though.

AC can be removed, fuel lines can be rerouted, PS can be hidden, coolant can be hidden, washer fluid reservoir can be removed, etc.

It really depends on how far you want to go with this whole thing. Do you want to have a clean and fully functional car or do you want what you have under your hood to look more streamlined. It's really quite difficult to make it look not so cluttered with x2 of every turbo component. I guess your only option is to just go single turbo.. Ha.

In my personal opinion, I like to remove things that aren't absolutely necessary to get the full function out of the car. I removed my N80, did a recirculating catch can setup to get rid of that nasty spider hose, did the coil conversion and a few other things, but I'm not about to remove A/C lines or ease of access power steering/coolant tanks. Cleaning things up goes a LONG way too. I want to be able to drive my car but I also want it to look like I take care of it as well.

[vavJETTAw36]

Good idea in theory until you have to work on it. Could they have made the engine any tighter? I'm pretty sure "remove front end" is the first step to everything.


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[A4Rob]

Common theme for b5 is battery relocate then throw coolant res and power steering reservoir in secondary fire wall. Never really seen an abs relocate.. just deletes.. have you seen a4robs car?

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I have no engine right now as my car is getting a 2.7T treatment.

[cjt671]

I have not seen his. I do want to get rid of the factory air box for more space, but I don't want to lose hp from taking in hot air.


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034 intake is pretty decent, little pricey for what it is but will look good with a shave

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[cjt671]

I have no engine right now as my car is getting a 2.7T treatment.

Your car is pretty much the go too for shave tuck lol.. that's sweet though man followed your build for a while when I first got my A4.. plans for big turbo 2.7?

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[Nollywood]

Relocate battery to luggage compartment.
Fit Euro C5 RS6 coolant reservoir in original battery location, using RS6 bracket (bolts to original battery tray fittings).
Relocate ABS module / pump behind false firewall, using a mixture of rigid pipes and stainless braided lines.
Relocate screen / headlamp washer reservoir behind false firewall.
Relocate PAS fluid reservoir behind false firewall, or mount it lower down in the bay, out of sight.
Perform ICM delete.

Not satisfied, and don't mind sacrificing some comfort? Carry on!

Perform aircon delete, losing condenser, receiver drier and pipes. Compressor can remain to to maintain original belt routing and length, or lose the compressor, and work out a shorter belt with different routing.

If you still want the bay even less cluttered, at the expense of a possible reduction in gas mileage, and ingesting of hot air, the airbox and cold air intake can be removed, in favour of a cone filter. Just make sure it's not an oiled one, MAF's get really pissed off if an oil mist coats the hot film. With a well-constructed heat shield (I've seen some real neat ones) performance shouldn't suffer.

[SomeDayAS4]

[mauromj]

Fully shaved engine bays like the ones posted above look way to funny in my opinion. All that empty space with what literally looks like an engine thats not hooked up to anything. I'm all for cleaning things up and reducing some complexity, but at a certain point it gets ridiculous.

[MarlinFoundNemo]

did a recirculating catch can setup to get rid of that nasty spider hose

Care to share how you did this? Or even better, have pictures?

[Samataras]

Fully shaved engine bays like the ones posted above look way to funny in my opinion. All that empty space with what literally looks like an engine thats not hooked up to anything. I'm all for cleaning things up and reducing some complexity, but at a certain point it gets ridiculous.

I think tucked bays are cool. But...

There is no way in hell that motor runs correctly.


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[Trb1]

Care to share how you did this? Or even better, have pictures?

I can shoot some pics tomorrow to give a better idea but the car is still in pieces.

Basically I did this:

Remove entire spider hose assembly.

Leave n75 vent to atmosphere. There's discussion about how much this air really matters when not recirculated. Technically I suppose it's an unmetered pressure leak, but it's being bled out of the pressure loop in stock form anyways. You're just losing that little bit of air being thrown back into the intake loop.

Cap off pcv port on intake (Also did an n80 delete. Early style manifold too btw).

Run the 2 valve cover vents and crank case vent into a T type system that then runs down to a single line going into the catch can.

Then run the catch can output line into the y pipe where the pancake valve went.

Local friend Ethan (cacti) welded in a -10 AN fitting into the valley pan cover too. Everything looks real nice and simplfied now.

[goalieman24]

Fully shaved engine bays like the ones posted above look way to funny in my opinion. All that empty space with what literally looks like an engine thats not hooked up to anything. I'm all for cleaning things up and reducing some complexity, but at a certain point it gets ridiculous.

Agreed.

These cars can look great without anything shaved/tucked if they are just CLEAN.... which the OP's is not. Getting some fresh hardware, hose clamps, vacuum lines/hoses, and a toothbrush + simple green makes a HUGE difference.

[Sumo337]

Not shaved or tucked, but kinda dress upped with a powdercoated purple cover and silver intake manifold, same color coils, Jcaps, APR Carbonio.

[Nollywood]

I'm not sure I like those bare engine bays, it makes them look like toy cars, or non-running prototypes. Removing the secondary firewall on a road car is not the greatest of ideas.

I can just imagine the fumes and heat coming into the passenger compartment, although it looks like the fresh air intakes have been blocked off too. Make those stuffy, hot and sweaty daily drivers then.

[Turbo_B5]

Not shaved or tucked, but kinda dress upped with a powdercoated purple cover and silver intake manifold, same color coils, Jcaps, APR Carbonio.

what was your cost to get your valve cover powder coated?

[Sumo337]

what was your cost to get your valve cover powder coated?

Around $75 without the powder price.

[Turbo_B5]

Around $75 without the powder price.

Cool. I think something is gonna happen with my valve cover.

[CJ_]

Heres mine, no where near done and still needs some cleaning up but you get the point. N80 deleted, n249 under IM, all wiring under IM, ECS coil conv, IE fuel rails.

[S4tech2]

Heres mine, no where near done and still needs some cleaning up but you get the point. N80 deleted, n249 under IM, all wiring under IM, ECS coil conv, IE fuel rails.

This is absolutely great. I hope to get mine this clean one day.

[melomandn]

Search around, although old theres some great engine bay threads, and a lot of good threads on vortex of people relocating engine bay components.

[audacity]

I'm not sure I like those bare engine bays, it makes them look like toy cars, or non-running prototypes. Removing the secondary firewall on a road car is not the greatest of ideas.

I can just imagine the fumes and heat coming into the passenger compartment, although it looks like the fresh air intakes have been blocked off too. Make those stuffy, hot and sweaty daily drivers then.

i guess cause normal cars without 2 firewalls suffer from those problems?

[Nollywood]

i guess cause normal cars without 2 firewalls suffer from those problems?

Cars with a single firewall have the cabin air intake shut off from the engine bay.

Cars with a dual firewall have the cabin air intake shut off from the engine bay, by having the intake enclosed between both firewalls, with the seal from the engine bay on the OUTER firewall. Lose the outer firewall, and the cabin fresh air intake is open to the engine bay.

I have ridden in a BAT B5 Volkswagen Passat with the outer firewall removed, and the smell of oil was pretty strong in the passenger compartment, more so when the engine was hot.

I guess you're clear on this now.

[Samataras]

Cars with a single firewall have the cabin air intake shut off from the engine bay.

Cars with a dual firewall have the cabin air intake shut off from the engine bay, by having the intake enclosed between both firewalls, with the seal from the engine bay on the OUTER firewall. Lose the outer firewall, and the cabin fresh air intake is open to the engine bay.

I have ridden in a BAT B5 Volkswagen Passat with the outer firewall removed, and the smell of oil was pretty strong in the passenger compartment, more so when the engine was hot.

I guess you're clear on this now.

I think the shaved bays look, cool, but I cannot imagine any of them run correctly. These cars run hot, deleting a coolant reservoir can't be a good idea.

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