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View Full Version : DIY: B7 A4 FMIC Install - eBay CX Racing



mr shickadance
03-19-2011, 01:19 PM
this morning i installed my cx racing fmic that i got from ebay, you can find various links to various cx racing fmic's on ebay, they are all priced pretty much the same, i 'made and offer' for 450 and the seller accepted (i tried 400 but it got refused immediately)

i was really impressed with the core and i took a picture to try and show the offsetting exterior fins but im not so sure it came out ok but trust me its offset
http://i1238.photobucket.com/albums/ff494/skrzypczakscj/b7%20fmic%20diy/DSC04054.jpg
interior is not offsetting tho
http://i1238.photobucket.com/albums/ff494/skrzypczakscj/b7%20fmic%20diy/DSC04055.jpg


pros
- cheap
- really solid core
- the piping let me retain my fogs
- no cutting or bumper modification of any kind

cons
- cheap
- the thrust sensor mount was off
- the mounting brackets kind of sucked but were very easy to bend and correct so i guess it wasn't the worst thing in the world

anyways, i took some pictures and am writing a hopefully helpful write up and diy

difficulty?

i would say about the same as a bumper removal


tools needed
- all the tools needed for fly's diy on removing the bumper
- 11 mm ratcheting wrench (MUST ratchet it will make your life 100 times easier)
- level
- t-25 torx bit and driver
- t-30 torx bit and driver
- 11 mm socket and ratchet
- 13 mm socket
- 13 mm wrench (ratcheting or not it doesn't matter) the needle nose pliers served as my 13 mm wrench for this one
- 2 x 13mm bolt (1 1/2 inch long) and nylon nut - these replace the nuts and bolts that come with the kit
http://i1238.photobucket.com/albums/ff494/skrzypczakscj/b7%20fmic%20diy/DSC04079.jpg

tools you MAY need (this is an ebay part, some parts will be fine, other not)
- beer (its about 4-6 beer project)
- drill
- large bit for drill (the size of the thrust sensor nipple)
- little bit of old oil from your old intercooler will greatly help you out when putting on the new couplers as they are suuuuper tacky right from the packaging



step 1)

remove the bumper using phils extremely helpful DIY found in the tech section (hopefully this thread makes it in there but if it doesn't that is where you can find phils kit)
gather all of the tools needed for fly's diy

take off your wheels tho, in fly's diy he does it without jacking the car up, but for this project you need your car jacked up so follow his instructions perfectly, just jack the car up









step 2)

remove the stock intercoolers by disconnecting the hoses, there is a horizontal hose that connects the two intercoolers that i did not remove, it can stay there, it doesn't mess anything up or look out of place and frankly im not even sure how to remove that so just leave it be. disconnect your thrust sensor (its the only electrical sensor on your smic's and unclip it from its wiring so you are left with just the thrust sensor you will need it later

the stock intercoolers are not held in place and with some finagling they should come right out

(i have no pictures of this because i am going from one fmic to another)







step 3)

time to mount the core of the fmic, take your cx racing intercooler out of the packaging and marvel for 1 minute for how awesome she looks.

ok, so identify the t-25 torx screw that holds the ac radiator unit in place on either side directly below the crash bar,
right side (facing the car)
http://i1238.photobucket.com/albums/ff494/skrzypczakscj/b7%20fmic%20diy/DSC04059.jpg
left side (facing the car)
http://i1238.photobucket.com/albums/ff494/skrzypczakscj/b7%20fmic%20diy/DSC04060.jpg

also note that i bent my power steering cooling about 45 degrees to make room for the fmic, you can bend it 90 and mount it with the appropriate wire, but i felt that bending 45 degrees was more then enough and it is safe the way it is in the picture (a tech did this when i got my 1st fmic installed and i have driven over 20k miles with it like this so its ok to have it this way)
http://i1238.photobucket.com/albums/ff494/skrzypczakscj/b7%20fmic%20diy/DSC04069.jpg


right so by now you should have bent the power steering, and identified the two screws under the crash bar

you are now ready to bolt up your core




step 4)

the cx racing fmic kit comes with a lot of hardware, pieces and what not, the only parts outside of the couplers, t bolts, pipes and core i used was the two z shaped items identified in this picture
http://i1238.photobucket.com/albums/ff494/skrzypczakscj/b7%20fmic%20diy/DSC04056.jpg

i replaced the 13 mm bolts and nuts that came with the kit with longer bolts and a nut that featured a nylon insert

now, because this is an ebay kit i knew that some of the parts were not going to be precise, the z shaped bends were not identical to each other and neither were their lengths....this is something that will slow you down but if you have patience it will all work out just fine.

if the bends are off
- attach the z shaped mounting part to the car via the a/c screw, bolt the end of the z shaped part with the 13 mm nut and bolt to the core and make sure everything is sitting flush (this may mean that your core is sticking out, this is a good thing) gently push the core towards the engine and it should bend the z shape part back into shape
http://i1238.photobucket.com/albums/ff494/skrzypczakscj/b7%20fmic%20diy/DSC04067.jpg

(ignore the fact that the pipes are put up, this picture is only here to help explain the bending step)


if the length is off with each part just either put the triangle-type part in front of the core, or behind it. you can see in my pictures below that my left side had to be put over, and my right side went under bc the lengths were off
left side
http://i1238.photobucket.com/albums/ff494/skrzypczakscj/b7%20fmic%20diy/DSC04063.jpg

right side
http://i1238.photobucket.com/albums/ff494/skrzypczakscj/b7%20fmic%20diy/DSC04062.jpg


bolt everything rather loosely and using your level adjust accordingly because no one likes an uneven core,
level
http://i1238.photobucket.com/albums/ff494/skrzypczakscj/b7%20fmic%20diy/DSC04076.jpg
centered...kinda
http://i1238.photobucket.com/albums/ff494/skrzypczakscj/b7%20fmic%20diy/DSC04075.jpg
once you have it level and centered, go ahead and tighten everything down firmly


step 5) the piping

i should really point out that a little bit of engine oil really helped the process, as i removed my old intercooler i noticed a little bit of oil and put it to use by greasing the rim of the pipes with it

i started with the turbo and made my way up to the manifold

its pretty strait forward and this is where the ratcheting wrench really comes into play

90 degree bent silicone reducer goes to the turbo and attaches the 90 degree pipe
http://i1238.photobucket.com/albums/ff494/skrzypczakscj/b7%20fmic%20diy/DSC04066.jpg

45 degree coupler goes to core and the 90 degree pipe
http://i1238.photobucket.com/albums/ff494/skrzypczakscj/b7%20fmic%20diy/DSC04067.jpg

TIP: try to hide the t bolts as this set up gets pretty close to the s -line fog grilles, and because it looks cleaner

okay now stop. another ebay error is on its way, but thankfully there is an easy fix

in this picture notice the odd shaped pipe on the right, this pipe features a spot for your thrust sensor bung, it may or may not fit the audi thrust sensor you took out in step 2
http://i1238.photobucket.com/albums/ff494/skrzypczakscj/b7%20fmic%20diy/DSC04056.jpg

do not try and force it in there, you will break it and it costs about 140 from the dealer (ask me how i know)

instead, use a drill and bit that is a the diameter of the bung and make the supplied hole bigger
http://i1238.photobucket.com/albums/ff494/skrzypczakscj/b7%20fmic%20diy/DSC04080.jpg
(the pipe in this picture is not the one that came with the cx racing, just wanted to show you but the pipes were already mounted)

you may also find that the two screws on the piping do not line up with the holes in the thrust sensor, for this problem i only used one screw to hold the thrust sensor in place and i created a make shift gasket out of the stuff that the pipes came wrapped in and i pressure tested that pipe to make sure i had no boost leak.....it worked perfectly and i know it sounds sort of sketchy but if you try it you'll find its more the adequate and works fine

also - mount the thrust sensor so that the part that attaches the wire is facing towards the headlight and not the engine, the t bolts will get in the way of attaching it

continue the piping once you get past this hiccup with a 45 degree coupler and the weird pipe with the thrust sensor issue
http://i1238.photobucket.com/albums/ff494/skrzypczakscj/b7%20fmic%20diy/DSC04070.jpg

a strait coupler will connect the weird pipe with the s- pipe
http://i1238.photobucket.com/albums/ff494/skrzypczakscj/b7%20fmic%20diy/DSC04072.jpg
(top of the weird pipe)
http://i1238.photobucket.com/albums/ff494/skrzypczakscj/b7%20fmic%20diy/DSC04074.jpg
(top of the weird pipe and bottom of the s-shaped pipe connecting....the big black hose on the left is my radiator hose, the small hose on the right is covering the where the thrust sensor is installed)

and to finish another strait coupler attaches the s-shaped pipe to the manifold
http://i1238.photobucket.com/albums/ff494/skrzypczakscj/b7%20fmic%20diy/DSC04073.jpg


you have completed the install at this point, make sure the t bolts are all nice and tight (but not too tight, you shouldn't be able to pull the pipe off and the t bolt should not be so tight that its bent the pipe)


reinstall the bumper, and it should look something like this
http://i1238.photobucket.com/albums/ff494/skrzypczakscj/b7%20fmic%20diy/DSC04081.jpg

so that's all for that, let me know if you have any questions, concerns, or comments, all feedback positive and negative is appreciated and if you are mod and think it needs to be moved to the tech section be my guest

if your going to do this and have questions feel free to pm and i will do my best to help you through it

Operator
03-19-2011, 01:50 PM
Very nice write up!!!!

J.Owen
03-19-2011, 03:12 PM
Thanks for the write up. Any reason you swapped from godspeed to the cx? Fogs?

kristokes
03-19-2011, 03:27 PM
Thanks for the write up. Any reason you swapped from godspeed to the cx? Fogs?

IIRC, for his fog lights.

mr shickadance
03-19-2011, 03:40 PM
correct it was the fogs

B72.0T
03-19-2011, 04:06 PM
How does it feel now? Any difference?

kyd
03-19-2011, 10:28 PM
looks good. good write up

mr shickadance
03-20-2011, 06:48 AM
How does it feel now? Any difference?

well since im waiting on a thrust sensor to come in from a dealership, i havent really pushed her that hard, but on half throttle it seems to have more response, also and idk if its just because its getting warmer out and i have my windows down but the turbo sounds better/louder which is always nice to hear something spool up

oddly enough i thought since i have a broken thrust sensor that i would at least throw a cel or something or suffer performance issues.....i drove about 70 miles yesterday.....nothing, no light or anything

audinewguy
03-20-2011, 07:15 AM
nice write up!

nnnick
03-20-2011, 11:16 AM
I might have to get this myself, as it looks like there is enough room for my S6 LEDs. I know the AWE won't fit with the LEDs, but it looks like the piping is nice in low in the bumper there. It's a $450 gamble but it sure would be nice to have a little extra cooling in the 120 degree Phoenix summers....

mr shickadance
03-20-2011, 12:09 PM
the piping and core could go lower, reference the pics in step 3 and notice that i used the ac screws, directly below it, there is a plastic hole that would be perfect for a self tapping screw, you would need to pair a screw with a washer but it would def fit and it would sink the core and piping another 1-2 inches

kristokes
03-20-2011, 12:51 PM
I might have to get this myself, as it looks like there is enough room for my S6 LEDs. I know the AWE won't fit with the LEDs, but it looks like the piping is nice in low in the bumper there. It's a $450 gamble but it sure would be nice to have a little extra cooling in the 120 degree Phoenix summers....

Nick, did you ever think about upgrading your intercooler piping first? The outcome may yield similar results as these eBay FMIC kits. I believe the factory DSMIC cores are designed better than most of these eBay FMIC kits. I'm trying to test that theory out with mr shickadance and someone with upgraded IC piping. (If you're going for the look of the FMIC, then disregard this)

nnnick
03-20-2011, 01:03 PM
Nick, did you ever think about upgrading your intercooler piping first? The outcome may yield similar results as these eBay FMIC kits. I believe the factory DSMIC cores are designed better than most of these eBay FMIC kits. I'm trying to test that theory out with mr shickadance and someone with upgraded IC piping. (If you're going for the look of the FMIC, then disregard this)

Haven't thought about that - I'm still very early in my intercooler research, I just know I need something better than what I'm doing now, and the AWE won't even come close to fitting. I've seen the upgradeded SMIC but they seem really pricey and I have concerns about the airflow they'll be getting...YGPM as I'd like more details on just the piping :)

Mc Suly
03-20-2011, 01:12 PM
looks a bit small but as long as it gets the job done.

small is powerful ;)

mr shickadance
03-20-2011, 01:47 PM
really loookingforward to doing some tests and logging so i can see if this is a decent buy or not, ive done some pulls today and the outside temp was around 50 degrees, i know not the greatest environment for testing but i gve it like 5 really good rips at wot after the car had fully warmed up, after the 5th i pulled to a stop, opene the hood and felt the pipe that feeds into the manifold and it was cold to touch


i dont have any data to back it up, so take it for what its worth

golfvdude
03-26-2011, 06:13 PM
I say the best test would be bumper to bumper traffic and then see how it fares with power delivery when traffic clears up.


What the hell. I'm gonna get it anyway. It's not like i'm a drag strip whore......As long as it improves daily driving in all conditions, i'll be good.

mr shickadance
03-26-2011, 07:26 PM
i have a godspeed kit for sale in the classifieds....pretty much the same kit intercooler wise.....pm if interested