Well it's been a while since I've really had to do anything to it up until a couple of weeks ago. I decided to take the Clio down to the Surrey RR meet at the end of November 2014 just for a run out and to see it on the rollers, it had 2 power runs after which Charlie mentioned it was running rich. It was also down on power too by about 20bhp, peak power when it was first mapped at EFI when I had the Adaptronic ECU installed was 256bhp so I was curious as to what was going on.
I decided to e mail Chris at EFI Parts the power and AFR graphs to see if he could shed some light, e mails were going back and forth. I had to data log info from the Adaptronic so Chris could read the logs to see what the Clio was doing, so I collated data from 4th gear pulls at Wide Open Throttle to see what the AFRs were doing throughout the entire rev range to the limiter, quite interesting on a dual carriageway! Again running a bit rich, how about a 2nd opinion on another set of rollers regarding AFRs just to make doubly sure? Good call.... I left things for about a week or so until I noticed there was an RR day actually at EFI Runcorn on the 1st Feb. So I e mailed Chris and thankfully he said that if I made the effort to drive all the way up to Runcorn from Essex he'd find the time check the map and the AFRs and remap the Clio again.
The Clio on the rollers when having the Adaptronic ECU installed and mapped
EFIrollers by
Ricard o1, on Flickr
Surrey Rollers
DSC_0208 by
Ricard o1, on Flickr
IMG_20141201_171820 by
Ricard o1, on Flickr
I had a few weeks, so I decided..... Back to basics before it goes back on the rollers, time to have a few things checked out so I called on
@AlexW to do the work on the Clio in preparation so I left the Clio in his capable mitts for a week. I wanted the cam timing checked, compression test, and the aux belt tension checked. a good job the timing was checked as it was out.
Camtool by
Ricard o1, on Flickr
While the car was at Alex place he ended up finding at least 6-7 things that needed doing but the main thing was the timing was redone, compression was reading between 190-200psi across the 4 cylinders and the aux belt changed to one 8mm shorter which put back some decent tension in the spring tensioner. So it was ready mechanically and in time for the road trip from Essex to Runcorn, in between that I also bought a new air filter. I wasn't keen on the Ramair foam filter so I ordered a larger Jetex cotton filter.
IMG_2031 by
Ricard o1, on Flickr
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Ricard o1, on Flickr
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Ricard o1, on Flickr
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Ricard o1, on Flickr
So D-Day, 1st Feb, I break the trip up by going to Swindon first on the Saturday to see friends and also fit the induction filter. Then the drive up to Runcorn.
The obligatory V Power top up before going on the rollers
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Ricard o1, on Flickr
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Ricard o1, on Flickr
Back on the rollers at EFI
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Ricard o1, on Flickr
The cam timing has made a difference in how it performs, it's given more power and torque mid range sacrificing a little on top end but I'm much happier having a stronger mid range in power and torque. The first run proves right, running rich and a power figure similar to Surrey at 237bhp. So fettling with the map and more power runs it's getting better on the bhp and torque to give an end figure of:
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Ricard o1, on Flickr
So it's now up by 25hp from the start of the session and up by 6hp from when it was first mapped. Torque has increased by 14ft/lbs.
End figures: 262bhp and 220 ft/lbs