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Right guys and girls I was at MRC yesterday trying to get a few more psi out of my car, so after sorting the boost leak and a change of oil for the rear diff we set out to see what we get, two weeks prior to this I was achieving 25psi and 21 and red line with maf reading of 405 on standard 2" no cats downpipes so I changed to rs4 downpipes to see what we can get. We headed off and was only achieving 22psi and 18 at red line she has dropped come back another pressure test change of n75 valve mind you every sensor on this car is brand new the engine was built from crank up and engine is only covered 2k with 1k being with the n75 unplugged, still no change so we was going to put it down to hot sides problem when Doug goes check the dv's I said there brand new apr r1 £100 each so we decided to check them anyway and there was the problem they were fooked bits of the internals of the dv was flying around lucky none went into my turbo well put the 710's on and away we go very happy with end result.

that shows sometimes you cant beat standard parts ollyW took some pictures hopefully he can add them to the post for you lot to see

cheers

Be interested in this as I am runing R1s, so is S4TAN.

After seeing mustys, i would send the diverters back to apr straight away - i could maybe understand 1 failure as being bad luck but both failed and the brass 15mm washer was flying around ready to go through the engine! It is not just that metal part - when the valves are not working you have a big internal leak - so turbos working too hard.

Just goes to show, OEM parts are usually of higher quality, and lots of R&D goes into them.

Even if you have to replace the 710N's more often, I'd still have 710N's any day!

Food for thought . . .

nice one for sorting it before your engine went fooked. dont want to see your car on here http://www.rs246.com/index.php?name=PNp ... ic&t=69558

cheers jimbo well she is working fine now went to gti sping festival yesterday but could not get on the track waited one and half hours in the que and just got pist off and left rain was not help waiting for the track to be dry seemed for ever but had fun on the way up left a 400bhp corrado, 135i bm and M z4 but he did give me a bit of stick

So what boost are you running now on those garrets?

A wooping 2psi peak and 1 at red line for the garretts and on the ko4's 26psi peak and 22 at red line bloody actuators

This is a bit worrying. I also found this thread: http://forums.fourtitude.com/zerothread?id=3765014
I e-mailed APR about it.

These http://www.vag-tuner.com/acatalog/copy_ ... _audi.html are excellent diverters, we have tested these over a period of time, removed them and done a manual PSI check, they held rock solid. My friend ran thenm for over 30000mls

RR

I spoke to the company I bought them from and apparently they are bring out a revised version so must of been something wrong

Cool so your on ko4s, pretty good boost there, are they stock or rs6. Quite amazing how much boost K04 are running these days. I like it. Did you get a bigger maf figure?
G

cheers g there hybrids but not rs6 ones they have used the new s3 compressor wheel flows 39ftlbs a min a bit laggy but when it she goes she goes did not have the emilator to get the maf reading

it was 402 and now you run 2 psi more than what you were running at that.