As part of the recent work Mike Bainbridge sorted out the tensioners & re timed the cams. At the same time we had the throttle bodies rebuilt and fitted new injectors and a new rear stainless box.
This was all set up approximatly and I bedded everything in on the DDK Scottish trip
The plan had always been to finally get my car set up properly on a rolling road, so after a huge number of recommendation I booked the car into Bob Watsons for the Thursday before Silverstone Classic.
After a truly horrendous trip down from Yorkshire we arrived at Bobs mid afternoon.
We got the car onto the rolling road and strapped her down

Bob started the 1st power run to get a starting point. Now if you have never been stood at the rear of your car whilst it is ran up the box then steadilly loaded up through the rev range you are in for a shock
Anyway the 1st power run was started but Bob wasn't happy. He took it to 6400 rpm and then stopped. He got out of the car muttering about the engine feeling flat etc which didn't exactly make me feel happy
168 bhp @ 6400rpm
That number was very shocking as the car pulled really well.
Bob was not worried though and got tinkering

The timing was re-set ( timing needs to be set when the engine is hot ) as it had been initially set whilst cold , the linkages were all checked and the position of the throttle butterflies adjusted slightly.
Some more power runs were done and graphs started to look a lot better
The main problem that was showing up was some really poor fuel delivery. The car was going from rich to lean & back to VERY rich through the rev range. Bob did a lot of tweeking of the MFI pump to try & even out the fuel ing. Bob admitted this one was a bit of a challenge as the MFI pump was VERY sensitive ( ideally needing a rebuild soon ). Bob set up the pump as best he could , although it is not perfect at very low rpms
After about 5 power runs Bob was ready for our 6th & final run
After all the adjustments the final numbers were :
198 bhp @ 7210 rpm
204Nm @ 5840 rpm
I was really pleased with those numbers as a stock 2.4S is 190 bhp
You'll notice the power come in very late ..... only 90 rpms off the limiter
The numbers are great but its how much more drivable the car now is. The engine pulls from lowish revs all the way through to the red line and the obvious 'on cam' moment has now been smoothed out. Additionally the engine much quieter & the fuel consumption appears to have improved dramitcally
All in all I was at Bobs for 2.5 hours and it was well worth its money. Well recommended.


