More carbon correctiveness...

[Spectre]

I have suspected my 'very standard' B7 is down on power for a while now. Having tried the 3,000rpm test and struggled to get it under 10 seconds I was pretty sure the car had an issue or two needing attention. I recently took it for a scheduled service at the main stealer and asked them to give the car a thorough going over to see if there were any problems. When it came back it had a clean bill of health with no reported issues. Still not satisfied, I booked it in for a health check at MRC and they stuck it on the RR to see what was going on. It was holding vacuum ok at the top level which was good news but seemed well down on power only developing 369bhp. Symptoms all pointed to carbon build up - the car needed to blow its nose. The previous (original) owner lived in the Isle of Wight and my suspicion is that the car did not get to stretch its legs much, clearly leading to carbon build up. So time to bite the bullet - booked it in for a carbon clean, de-flap and Stage 1 remap.

Looking forward to comparing the before and after charts and finally getting the car I wanted in the first place.

Mak.

[neilparf]

You will be more than impressed, I'm sure.

Admittedly, mine had a full non-res system fitted before the clean and stage 2 map; it was pulling 362PS - not bad, but not great.

After the Stage 2 and Carbon Clean I was up to 434PS and 483NM.

http://forum.rs246.com/viewtopic.php?f=35&t=108490 Page 3 of the thread has the Dyno results...

Good luck!

[kev4]

Hi,

Can you give me more info on the 3000rpm test you carried out please.

Cheers,
Kev.

[toyneg]

Hi,

Can you give me more info on the 3000rpm test you carried out please.

Cheers,
Kev.

we call this the Arthur test - basically use your lap timer to time the speed it takes to accelerate from 3k revs in 3rd gear up to 8k revs. do 3 runs and take the average. be mindful about where you attempt this though as 8k revs in 3rd is 95mph or something. best way to do this is traction off and slowly build up the revs to full throttle is engaged at 3k on the nose and keep it there until you see 8k

there are loads of info on here about this just search for 3k-8k test or arthur test.

[toyneg]

I have suspected my 'very standard' B7 is down on power for a while now. Having tried the 3,000rpm test and struggled to get it under 10 seconds I was pretty sure the car had an issue or two needing attention. I recently took it for a scheduled service at the main stealer and asked them to give the car a thorough going over to see if there were any problems. When it came back it had a clean bill of health with no reported issues. Still not satisfied, I booked it in for a health check at MRC and they stuck it on the RR to see what was going on. It was holding vacuum ok at the top level which was good news but seemed well down on power only developing 369bhp. Symptoms all pointed to carbon build up - the car needed to blow its nose. The previous (original) owner lived in the Isle of Wight and my suspicion is that the car did not get to stretch its legs much, clearly leading to carbon build up. So time to bite the bullet - booked it in for a carbon clean, de-flap and Stage 1 remap.

Looking forward to comparing the before and after charts and finally getting the car I wanted in the first place.

Mak.

had similar with mine although my 3k-8k test was still not too bad it just felt slower than other models i had had rides in so took it to MRC and it ran 341ps, so had a Stage 2, Pre Cats and Full Carbon Clean and they got 431 out of it. massive difference you shouldnt be disappointed. i just replaced the MAF in mine as well this weekend and that made a big difference as well.

[Stevec33]

Il be interestef to hear your opinions on how much difference it makes, im saving to get mine cleaned and mapped. Things are a little tighter than usual at the mo were in the middle of moving house

[kev4]

Hi,

Can you give me more info on the 3000rpm test you carried out please.

Cheers,
Kev.

we call this the Arthur test - basically use your lap timer to time the speed it takes to accelerate from 3k revs in 3rd gear up to 8k revs. do 3 runs and take the average. be mindful about where you attempt this though as 8k revs in 3rd is 95mph or something. best way to do this is traction off and slowly build up the revs to full throttle is engaged at 3k on the nose and keep it there until you see 8k

there are loads of info on here about this just search for 3k-8k test or arthur test.

Thanks for the info, i will try this test to see how the car is performing.

[toyneg]

cool, let us know what times you get

[kev4]

cool, let us know what times you get

Yes i will, but i'm offshore at the moment and won't be home until next week.

[kev4]

Well I did the test, just to let you know the car is standard no mod's that im aware of, and the sports button was not switched on, and two people in the car.

first run....8.5secs
second run....9.1secs
third run....8.9secs

As you can see there is a fair discrepancy in the times, but as an average of high 8's does that look ok?

Kev.