Diverter Valve - Do I need one

[hotcar1600]

Hey guys,

My polo is getting an APR tune this week, as well as engine mount and gerabox oil.

Was wondering all previous experience as to whether I should change the diverter valve at the same time? Do i need it??

Cheers

[break]

IMO, yes... it should be done shortly after a retune, same goes for the engine mount (which you're already doing).

I've found not only have I gained top end in 4th/5th gear (you won't notice the leak so much in the first three gears), my car is also now idling a little smoother and overall responding a little better post-valve.

That said, my findings may be a one off.... its possible that my valve was leaking even worse than most.

[noone]

The stock one may not stay closed at full boost.

The stock diverter will normally do the job, but chances are it wont last and may be stopping you from holding boost.

Do you need to do it now? No

Should you think about doing this soon? Keep it in mind for future spending.

[woosh73]

diverter valve

i ended up getting one through ebay $60 and it works really well

[DeanB]

With the exchange rate as it is you can get an APR R1 DV one from the states for a "lot" cheaper then through any local supplier.

[break]

i ended up getting one through ebay $60 and it works really well

Ditto, mine is a copy of the popular Forge item and only a fraction of the cost.

[mozzzy_2000]

yes I would have to agree also. It is a very worthwhile upgrade after a flash tune. I myself chose the APR R1, although a little more expensive, is totally maintenance free & set and forget unlike a typical piston driven bov, like the forge, which require periodic maitenance to ensue the pistons moves freely.

The performance gains I got with the R1 diverter were quite astonishing compared to the stock Bosch valve. You can expect the boost to come in a lot earlier, even as low as 1300RPMs, and turbo lag is virtually eliminated through gear changes and the boost holds for a lot longer. It was one of the first things I upgraded post flash tune. It was the first of the air intake mods/upgrades I did and to be honest I found the gains far inexcess of what you get from the Forge TIP and Seat intake mods combined. No joke.

Its not critical but I would suggest doing upgrades like this a little at a time, which gives you a sense of what each one has done instead of getting them all done at the same time and really not knowing what upgrade has added what.

Cheers

[mozzzy_2000]

With the exchange rate as it is you can get an APR R1 DV one from the states for a "lot" cheaper then through any local supplier.

I tried buying my APR DV1 from the USA but no one would sell one to me because they all pointed to the fact that APR Australia sells them here and they were not permited to sell them to me. Or thats the somewhat convoluted excuse they gave me. True story.

[Blitzen]

I tried buying my APR DV1 from the USA but no one would sell one to me because they all pointed to the fact that APR Australia sells them here and they were not permited to sell them to me. Or thats the somewhat convoluted excuse they gave me. True story.

That sux, But I get that story alot through alot of companies in the States (Vans, Under Armour, etc)...APR R1 diverter valves are going for $159 USD + shipping on Ebay...

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=350330012189&fromMakeTrack=true&ssPageName=VIP:watchlink:top:en

I have a Forge 007P and am very happy with it. I also bought the spring kit, and put the 17 to 22 PSI spring in it too.

[DeanB]

I tried buying my APR DV1 from the USA but no one would sell one to me because they all pointed to the fact that APR Australia sells them here and they were not permited to sell them to me. Or thats the somewhat convoluted excuse they gave me. True story.

North American Motorsports ship to Australia, I got mine with free shipping and it was only A$135 landed as it was on special.

http://www.namotorsports.net

[hotcar1600]

Hey guys

thanks for all the feedback...i have heard stories of the factory valve being faulty from reading other posts on this forum.

however, im one of those people who like to do things once...and once only so im leaning toward that if it is indeed in the shop I might as well get them to do it at the same time.

I like the APR one only because it needs no servicing etc and that really appeals to me.

Also guys I dont know if you remember my previous posts about crunching during spirited changes from 2nd to 3rd but im chaning the gearbox oil and engine mount. Which oil is the best?? does the redline oil have a particular product code ??

cheers

[jesum]

I tried buying my APR DV1 from the USA but no one would sell one to me because they all pointed to the fact that APR Australia sells them here and they were not permited to sell them to me. Or thats the somewhat convoluted excuse they gave me. True story.

This is actually correct. It's a matter of policy for APR not to do this for warranty, support, etc etc.

Guy may actually get in trouble if someone bought the DV from overseas and then went back to APR to complain about a faulty unit.

I think Guy can probably give a better answer for this. But just be aware that you are on your own if you purchase it over the net.

All things said and done, this is a good upgrade. what mozzzy_2000 said is correct. I too experience the same effects and I love it.

The Redline oil that most of the folks here use is ok but after some spirited driving in hot weather, I find the oil seems to "thin" and the gearbox feels like I'm stirring rocks in a bowl of porridge (a term my friend coined up!).

[Blitzen]

Also guys I dont know if you remember my previous posts about crunching during spirited changes from 2nd to 3rd but im chaning the gearbox oil and engine mount. Which oil is the best?? does the redline oil have a particular product code ??
cheers

The full name for the Redline oil is Redline MTL... It cost's about $45 a 1L bottle from Bursons, or about $12 USD off ECS tuning...Why we pay such an exorbitant price is beyond me.

[noone]

Its not that bad, I think Jmac and Performance Lub do it cheaper

Performance Lub link

[xc17ed]

Seems the OP has his answer, so I thought I might steal the thread a little.

On a stock Polo will changing the DV give the same benefits you guys have mentions for a tuned Polo? Also using either a Forge (or the ebay copy) will it make the "BOV" noise? I wouldn't mind a small bit of noise, but don't want to be going crazy, lol.

Thanks