improving aerodynamics with OEM parts

[RedRobin]

^^^^
Cheers 

The actual weights aren't too important if the all materials are very light. I was thinking that they might be heavier than the materials you mention - It looks like quite a lot in the photo.

[danishmkvgti]

I have the parts right here and the would need some sort of weightsaving elsewhere to be compensated for RR. CF for example   

[Snoopy]

Robin it weight is next to nothing. I have removed similar parts on other VW cars including a mk6 TDI and theres not a much difference between whats there on a GTI and whats new. It looks alot bigger in the photos compared when you see them underneath. Its a mk5 anyway so a heavy car and a couple of Lbs makes little difference down there. I will simply goto the toilet and deposit the difference before i go for a critical drive 

I just come back from Audi dealer!!

Ordered:

A3 3.2 undertray  1K0 825 237 P
Tank deflector 1K0 501 713 D
Rear muffler deflector 1K0 825 206 A
And all the necessary screws, at least I think.

This is what i ordered just not had time to go pick it up from a mate who collected it for me.
Engine undertray
1K0 825 237 P     Noise Insulation £28.84
1K0 825 951        Hex headed bolt (Combi) 89p (need 3 according to above list)

Rear axle cover as fitted to bluemotion
1K0 501 713 D    Trim for Rear Axle £26.73
1K0 501 682        Retaining bracket £1.89
N 905 483 05      Not on Stamm
N 901 838 02      Not on Stamm

Rear covers from A3 or TT
1K0 511 539 E   Stone chip Guard £5.37
1K0 511 540 C   Stone Chip Guard £6.75
8E0 825 267      a spreader rivet £0.12 (need 4 so x4)

[RedRobin]

I have the parts right here and the would need some sort of weightsaving elsewhere to be compensated for RR. CF for example   

....You weren't thinking of CF wings by any chance were you, Jake? 

[RedRobin]

This is what i ordered just not had time to go pick it up from a mate who collected it for me.

Engine undertray

1K0 825 237 P     Noise Insulation £28.84

....Not for me!!

[Snoopy]

This is what i ordered just not had time to go pick it up from a mate who collected it for me.

Engine undertray

1K0 825 237 P     Noise Insulation £28.84

....Not for me!!

Thats just the name in ETKA for the undertray. I don't like the way the sump is open to the eliments and so corrosion. I have a VW sump on a 6 year old car to replace this coming weekend partly imo because its had the open undertray and has suffered with weather so rotted. My GTI has a screwed on sensor right on the bottom of the sump last thing i want is having to replace it as well as the sump in coming years. The undertray will help keep the engine bay area more free from salt etc.

[RedRobin]

This is what i ordered just not had time to go pick it up from a mate who collected it for me.

Engine undertray

1K0 825 237 P     Noise Insulation £28.84

....Not for me!!

Thats just the name in ETKA for the undertray. I don't like the way the sump is open to the eliments and so corrosion. I have a VW sump on a 6 year old car to replace this coming weekend partly imo because its had the open undertray and has suffered with weather so rotted. My GTI has a screwed on sensor right on the bottom of the sump last thing i want is having to replace it as well as the sump in coming years. The undertray will help keep the engine bay area more free from salt etc.

....sh*t!! I think you've just sold me on getting just this undertray (and the 3 fixing bolts - only 3?)

[Snoopy]

Just 3 extra bolts as it uses the other 8  of the standard undertray.

[RedRobin]

^^^^
I don't know why I've just clicked you a Thank You, Geoff - You just cost me another 30 squid!

[Snoopy]

^^^^
I don't know why I've just clicked you a Thank You, Geoff - You just cost me another 30 squid!

The mk5 GTI maybe fine, i don't know without looking under some of them on how there doing but a 1.4 16V we have owned from new is suffered and has a slight weep from the bottom of the sump.

[the bruce]

So that's why we own a Mk.V/EA113 with a cast aluminium sump and no
cheap Mk.VI/EA888 with the poor steel one !!

 

[Snoopy]

So that's why we own a Mk.V/EA113 with a cast aluminium sump (with doddy belt tensioner, expensive belt changes, rusty wheel arches and sills) and no
cheap Mk.VI/EA888 with the poor steel one !!

 

Corrected for you  

[RedRobin]

.
Does the extra undertray reduce the ground clearance by much? It's a bit critical on my car's setup.

[danishmkvgti]

.
Does the extra undertray reduce the ground clearance by much? It's a bit critical on my car's setup.

Nope, it just follows the lines of the old one 

[Snoopy]

I was just about to say similar, you can see it on page one and looking under a TDI today at work its the same lines just covers back to the subframe.