yeah i almost planned for the trip to MRC, went through to autohaus had a talk with them and they knew thier stuff with our cars, theyv done quite a few decoke's..i thought its worth a try save the long journey to mrc....MartayMcFly wrote:Keen to see what Autohaus manage to do with the decoke, they're a lot handier to get down to than MRC.
i think the dyno run was spot on to be honest...im no expert but looking at my run chart the power drops off severly after 6800 rpm....comparing to mrc dyno runs on facebooki think mine is losing big time top end power.....possibly retarding the timing due to massive buildup/restrictions?Rick_RS4 wrote:im not trying to sound like Arthur here but 100+ bhp from carbon buildup? thats got to be bad.
was it dynod in the correct gear, loading right etc?
also the figures above from MRC i know are top blokes when it comes to audis but whats stopping them upping the load on the first run, doing the clean, then rollering it on normal load to get customer happy figures,
a carbon clean will make the engine alot smoother and felt freer revving , well it did for me
im not trying to flame anyone or thing here its just observations
toshers wrote:Really keen to hear how you get on at Autohaus. That's a couple of us now, so a write up would be very welcome
IIRC MRC have suggested on here in the past that a vac leak is worth about 60bhp+ and carbon build-up about 30bhp+.RossDagley wrote:Decoke and vac fix replaced a missing 105bhp.
+1 - I had my valve vac pipe come free and instant vacuum loss - it ran like a dog with a vacuum issue...PetrolDave wrote:IIRC MRC have suggested on here in the past that a vac leak is worth about 60bhp+ and carbon build-up about 30bhp+.RossDagley wrote:Decoke and vac fix replaced a missing 105bhp.
I originally realised mine was low on power at the AMD Rolling road day we had last year, MRC fixed the issue with full decoke and stage 2 and it made a massive performance difference.Rick_RS4 wrote:S4Player wrote: Think that's a bit strong suggesting Mrc loading up the dyno
yeah sorry i worded it incorrectly, i meant like different users doing before and after, also different temps etc, but 100bhp increase is awesome , my last rr was 394 without carbon clean, so hoping for a bit more this time round now its cleaned
THE V-BSATRD!DaytonaRs4 wrote:spanking a full tank of v-power
Gash because it's 97 RON...DaytonaRs4 wrote:yeah i use that also....get a discount on bp ultimate but its gash
With a vac leak is it just that vac operated stuff like manifold and airbox flaps don't operate or does the actual loss of vacuum causing a problem elsewhere?PetrolDave wrote:IIRC MRC have suggested on here in the past that a vac leak is worth about 60bhp+ and carbon build-up about 30bhp+.RossDagley wrote:Decoke and vac fix replaced a missing 105bhp.
Tony, yes a vac leak will causes a loss of power. If there is a break anywhere in the circuit then none of these items will operate as they should and in the case of the intake manifold flaps, the ECU will <beep> the timing to protect the engine and restrict power output. The intake manifold flaps, intake air change over flap and exhaust valves can all fail individually too. My Valve vac pipe came lose on one side and the whole car was like a dog - retarded timing. It's all interconnected and very symbiotic.TonyHayers wrote:With a vac leak is it just that vac operated stuff like manifold and airbox flaps don't operate or does the actual loss of vacuum causing a problem elsewhere?PetrolDave wrote:IIRC MRC have suggested on here in the past that a vac leak is worth about 60bhp+ and carbon build-up about 30bhp+.RossDagley wrote:Decoke and vac fix replaced a missing 105bhp.
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