All Nice and well but could you then explain why the car could not exceed 75mph and took 16seconds 0-60.
"Failed again. Went free revving then got to the bottom of the crescent and BLEEP BLEEP constantly.
Never mind I thought it's just learning again. But 0-60 in 15.9 seconds ain't good and it got to 75 in third and stopped going. would not go over 75."
Furthermore 17bhp was proven on the rolling road on several cars the same day.
Cristian, I can explain this very very easily, and if you had asked the owner (who I will call JS) he would have told you the full story too.
When we got the call from JS he had just had a sports cat fitted and the car would not idle, nor would it rev cleanly.
When running the diagnostic tests it was found that the Lambda 1 (pre cat lambda) was not reading anything, so it wouldn’t have mattered what we did. We also read the IAT with the silicone hose and open cone filter. I agreed with Les that there wasn't a lot we could do and went off to see the MD of the makers of the exhaust section to have a chat.
I managed to obtain a new Lambda that afternoon and advised JS that with a bit of shuffling I could get back on the Friday and did he want to try the CDA to which he agreed.
On the Friday, I fitted the new lambda and started the car, but it had the same problem, although the lambda was now reading
I then removed the silicone kit and open cone and installed the CDA. Started the car and it then idle'd and at least revved cleanly, but alas the car was still down on power.
I then then removed the coil pack from 1, 3, 4 and 5 (I couldn’t even get the retaining bolt out of no. 2 as it had been rounded off!). The recess on no.5 was severely discoloured and the plug was at a somewhat strange angle. I removed the plug and it had obviously been cross threaded and was some 8mm higher than it should have been.
The reason the car was down on power is that No. 5 and we suspect No.2 had been cross threaded at the last service and were sitting some way further out than they should have been (8mm is a huge distance). JS confirmed that the cars performance itself had been this poor since it was serviced but we had returned it back to how it was then as it had deteriorated since the air filter and especially after the sports cat had been fitted and at least it ran now!
I agreed with JS that his best course of action was to take it back to where he had the car serviced and get it sorted out as it was pointless doing anything else to it until he had, as any rectification cost should be covered and done by them.
Just for your information, despite three trips to JS, time at the exhaust makers and spending around 7 hours working on his car for him, we did not charge him a single minutes labour or travel. JS is away at the moment but I am sure he will confirm the above, word for word and maybe answer the question you posted on that thread.
As for the rolling road tests carried out, think you ought to carry out some research before you say anything else but if you think an IAT of 85c is going to give you an increase of 17bhp then you go ahead and keep thinking that.