All Things Mk5 > How to Guides / Troubleshooting

Power Loss

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Rob GTI:
I had my car on a rolling road last week mainly as a health check to see if all was running well. The engine spec is Revo Stage 2, milltek TBE, Forge Twintercooler and Dbilas intake on a K03 turbo. I should really be getting about 260bhp and 310llbs ft torque from this spec, but found I only got 246bhp and 280llbsft torque. which was down from 250/310 from my previous rr session (same RR) which had the same spec minus the intercooler and TBE.

The boost on my Revo settings was upped from 6 to 8 and power went from 245/280 to 250/305 still down on expected power but not that much.

The comments made by the RR operator were that there was no loss of boost through the system proved by the VAG COM logs.

The only thing I can think of is when I fitted the forge intercooler one of the hoses (drviers side) was slightly deformed /squashed (I didn't trim it enough) therefore this could possibly be preventing full boost from flowing around the system?

Any other suggestions greatly appreciated?

chungster:
figures sounds about right to be honest. you won't get much more bhp over Stage 1 unless you fit an aftermarket HPFP and go S2+.

snapey:
Have you got an updated dv?

Luke

Top Cat:
Rob how kinked was the pipe, when i fitted mine the fit was ridiculous i had to cut loads off all three connections on mine, and it still has a slight kink in. If your fit was like mine and you have not chopped it then you could be right.  :smiley:

john_o:
Hi rob,

how exactly did the operator 'know' there wasnt a boost issue? and if not didnt they give you any pointers?
if as you say it was the same RR then yes even given diff days you should be slightly up.

you need to see timing (to see if its pulling it back) and N75 (for a boost issue) etc logs and take it from there......
I assume you are using the same octane fuel?

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