Engine carbon clean honest review

[S4WON]

http://youtu.be/l_hl8WvfJzQ

[MikeFish]

Nice one Dan but I have a much better video from the day:



For those that are interested there is a video of all the car being dyno'd on the link S4WON posted earlier.

[S4WON]

Lol yeah,i remember that Mike. Never heard a bunch of hairy blokes giggle so much when you roared off!

[RIV]

From memory Silas had the usual mods i.e. cold air feed, stage 2 map, stage 2 manifold, exhaust etc.

Yeh my car had just had a full carbon clean stage 2 manifold and map at mrc with JHM spacers and direct cold air feed, with gutted cats and a non res milly

[Harris.]

So in reality then a B7 RS4 will never see above 414bhp ?

[Cuppa]

@slowcoach did the car have chance to cool down before the dyno run?

The first dyno run on the race setup Mk5 GTI after the clean showed a slight drop in power and only a slight increase in torque - this was down to the car being very hot - much hotter than the before clean run (5 degrees makes a lot of difference).

Once they realised it was down to the increased temps they allowed the car to cool down for 90 minutes afterwards. When put on the dyno (still 1.5 degrees above the before temp) then they got the higher results.

Comparing dyno runs can be skewed by temperature variations. Ideally to get a true like for like both runs need the same warm up from cold to do any comparison.

[MikeFish]

So in reality then a B7 RS4 will never see above 414bhp ?

No, where did you get this from? Plenty of cars from rolling road day had more than 414bhp. They can't sustain it for long without regular cleaning though.

[marc1]

From memory Silas had the usual mods i.e. cold air feed, stage 2 map, stage 2 manifold, exhaust etc.

Yeh my car had just had a full carbon clean stage 2 manifold and map at mrc with JHM spacers and direct cold air feed, with gutted cats and a non res milly

I thought you must have had a stage 2! I've just swapped out the AMD for an MRC stage 2 so looking forward to seeing how it compares. It's made similar power to your old car now, and slightly less beforehand. As we know the c/c doesn't last forever so if it had run on the day it would probably have made more then.

[scaghead]

Have to agree with Mike 100 %.. I have owned mine for seven years now.. And I remember going to a rolling road at paramount back in 08/09 ..think from memory there were over 30 b7s and the average there was about 380/90 that was with cars that had probably only had done less than 20k ... One fella pippyrips (the first rs4 owner to have a de- Coke done ).. Then had Mrc take the head off it again after only 2 k to see what it was like and it was already quite bad again.. It seems they Coke up to an extent pretty quick then the process slows..
I believe a de- Coke is good for anything up to 40 horses.. Others I have seen have had a de- Coke and claim numbers of up to 100 extra ponies.. Like Mike if your down on power a significant amount it's probably a vac leak.. Be good if this works not like that terraclean is it.. Lol

[IanH755]

The only way to be 100% sure would be an inspection before/after to see how clean the valves are, although bare in mind that MRC's carbon clean is only the valves and not the full intake/exhaust system while the water clean may do more overall but less on one particular area.

It'd be good to see a dyno, inspection, water clean, dyno, inspection, MRC clean and finally another dyno all done one after the other but I don't think anyone would ever do that

[Harris.]

So in reality then a B7 RS4 will never see above 414bhp ?

No, where did you get this from? Plenty of cars from rolling road day had more than 414bhp. They can't sustain it for long without regular cleaning though.

But you have also said a clean is a waste of time , but now your view on it is different ?

[MikeFish]

No same view. You said they will never see over 414bhp, I said you can but you'd need to regularly clean it to maintain it.

[iduff]

Massachusetts USA lurker here, I have a 2007 RS4, wonder if any of your H2 cleaners have made it across the pond?

[Cuppa]

Massachusetts USA lurker here, I have a 2007 RS4, wonder if any of your H2 cleaners have made it across the pond?

Long way to go for you as the first one up and running is in Florida. More will be coming online as and when people take a franchise on.

[ians63]

Any of this in Scotland?

Just throwing this out to all of us north of the border - what about arranging a meet up central-ish (Perth / Stirling?) and see if one of the the N England reps would come up for a day. For £80 - £90 I would be happy if I even THOUGH the bread van was running better.