BMC CDA with no battery swap or relocation

[mozzzy_2000]

Far out I didn't realise how massive the CDA was! That actually looks larger than the one in the pic on that Japanese site. Is it a different model? I can see now how cramped everything is. So it looks like your battery is now laying down on its side? All that looks so different to stock I can't even see where the stock intake would have gone.
Also what is that tiny little "mini pod" like K&N filter down in the lower left corner? What's that for?
And you say you don't notice any difference to the stock filter/SEAT? I find that odd because just putting in a K&N panel filter in my car made a massive amount of difference to the engine's performance. More so than any other mod in the intake system. I am supprised you dont get really noticable results from this BMC setup.

[mikepologti]

ummm is that such a crash hot idea to be laying the battery on its side? just wondering.

[Bubu]

Far out I didn't realise how massive the CDA was! That actually looks larger than the one in the pic on that Japanese site. Is it a different model? I can see now how cramped everything is. So it looks like your battery is now laying down on its side? All that looks so different to stock I can't even see where the stock intake would have gone.
Also what is that tiny little "mini pod" like K&N filter down in the lower left corner? What's that for?
And you say you don't notice any difference to the stock filter/SEAT? I find that odd because just putting in a K&N panel filter in my car made a massive amount of difference to the engine's performance. More so than any other mod in the intake system. I am supprised you dont get really noticable results from this BMC setup.

ummm is that such a crash hot idea to be laying the battery on its side? just wondering.

The battery is a dry cell you can mount them any way you want, except upside down. Same as Odyssey batteries only its a different brand.

The little filter is for the air pump, your factory setup is via black plastic hose from your air box.

The engine bay is tight in the polo there is no arguing that. I also thought I would have more room to work with once the factory air box was gone and a smaller battery fitted.

As for the performance I find it kinda hard to tell due to the fact that the ambient air temp fluctuates everyday. In terms of free flow it does feel less restrictive than the standard setup. The gains to be had with an intake are not exactly massive.

Here is another pic maybe this will give you an idea where all the stock bits should be. Keep in mind the setup is not completely finished. Small things like the air filter bracket (where is too close to the body), silicone hose needs replacing (couldn't get the right size at the time and I was already committed to doing the setup) etc.

[mikepologti]

ive got an interesting link id like to share. this engine probably has more mods then you can poke a stick at including, battery and washer bottle relocation.they seem to be using the same space i queried before.(behind the lefthand fog lights)

http://motorcade.co.za/index.php?main_page=product_info&cPath=197&products_id=562

[DaveMack]

ive got an interesting link id like to share. this engine probbaly has more mods then you can poke a stick at including, battery and washer bottle relocation.they seem to be using the same space i queried before.(behind the lefthand fog lights)

http://motorcade.co.za/index.php?mai...roducts_id=562

Wow! Some beast. It looks as though they have put extra holes through the lower grills (inside the foggies) to get the cold air they need - neat idea.

Dave

[Bubu]

Thats the same thing I want to do to mine in the long run with some slight changes to those in the photo. I searched for some time to see if it was possible and to get some ideas. So thanks for the link....

[Joe Chu]

Sorry

Sorry mate but that CDA looks like ****e... ??? And by the sounds of it was a total waste of folding stuff.

[pog]

Bumping an old thread!

After a year of owning a BMC CDA Intake which I never got around to installing (like most things I buy- ha!), I think I may be bothered this weekend.

Q: Has anyone removed the windscreen washer bottle?
-If so, where did you end up putting it?
-If so, how easy was it to remove? I know from the top its just connected to the negative terminal on the battery which is bolted to the chassis, but what about underneath?

I think if I have any chance of doing an air duct to the front bar, I would go 2.5" or 2.75" silicone hose to go down the right side of the engine bay bypassing the stock battery .. as in



I was thinking a silicone flexi hose that way I can squeeze it through as I think it'll be more durable. But if you say otherwise, let me know.

Would anyone say this is too small of a hose to ram air into? I'm thinking not, but would love to hear your thoughts.

Thanks guys.

---------- Post added 21-12-2011 at 12:00 AM ---------- Previous post was 20-12-2011 at 11:51 PM ----------

Also, does anyone think this guy is running a stock battery or a different battery? Can't really tell..

[dood9n3]

The water bottle is bolted down behind the left fog light, not much working space there

Hoping these pics will help



---------- Post added at 09:25 PM ---------- Previous post was at 09:12 PM ----------

[pog]

Thanks for that.

Maybe I can remove the water bottle all together and reroute a smaller one somewhere else in the engine bay.

---------- Post added 22-12-2011 at 08:34 AM ---------- Previous post was 21-12-2011 at 09:22 AM ----------

Actually, I think I may sell this - I don't think the gains to be had vs installation is worth it IMO. Does anyone know the part number for a BMC Filter for the 9N3 Polo GTI? Or do you prefer K&N or any others?

[VWindahouse]

Selling my BMC with new cleaning kit for $50 if you want it

[fuzion]

The Polo grabs a lot of air as is already as such a small distance for air to reach. You wont see a huge benefit personally from testing it out.

For $500+ you think under 1kw is a difference to justify you might as well go buy an R32 and spend money on an NA engine! Argue all you want, i've tested the differences on logs, dynos lol. Its just not justified as the Polo k03s runs out of puff at 146kw realistically. Its a small car, very light and great power to weight ratio.

Stop being bored, do something else :p lol my 2 psi (wrong if you wish, but from what ive tried!)

[vwthunder]

People, you can make anything fit if you really want to, move battery to the boot/ smaller battery etc

If you want to do it, well do it, if not, leave it alone lol

[kaanage]

yeah but since the turbo will be the limiting factor in flowing air into the engine, why bother (unless you already have a bigger turbo fitted)?

[noone]

the stock intake does fine. I think the turbo could be pushed harder, but then you are limited by the injectors, fuel reg, exhaust manifold, etc, etc, etc.

If you have the PD160, thats all you need and IS a big improvement for a chipped car.

Windscreen washer bottle: get a different one.
battery: that one looks turned, if you want to move it, get it mounted to the side of the engine bay PROPERLY... it weighs a lot, you don't want it bouncing around or breaking free and loosing power / smashing around your engine bay.