Mark@Abbey m/s Posted September 30, 2011 Share Posted September 30, 2011 Just on the dyno with my DE car back to totally stock , calibratiing a map for 95 Octane fuel. I can say running the cars on 95 octane fuel will cause the cars to swich over to the high det map as when you place the high det ignition map in the main ignition map the car runs the same reduced BHP, this shows the car is hearing detonation when running 95 octane fuel. I will explain more at a later date. I think with a little work I can get a 95 octane mapped car back to nearly the same as a stock DE super unleaded car thou. My car has 230 hub bhp at the moment up from 222 hub bhp running 95 octane fuel with 98 octane map , a stock 98 octaned fuelled car gives around 239/243 hub bhp. Torque at the moment is around 8 lb/ft down through out the rev range but it was nearly 12 lb/ft down running 95 octane fuel with a 98 fuel map. will keep you up to speed. Quote Link to comment Share on other sites More sharing options...
Mark@Abbey m/s Posted September 30, 2011 Author Share Posted September 30, 2011 found a few more bhp up to 235 hub bhp , torque I have only found another 3 lb.ft do still down 8 lb/ft from a stock super unleaded car . Quote Link to comment Share on other sites More sharing options...
Mark@Abbey m/s Posted October 3, 2011 Author Share Posted October 3, 2011 Attached are some dyno plots from the DE car tuned ont he dyno ( my own car) totally stock The car when using 95 octane fuel on the stock map was running on the high detonation map, I confirmed this, I cut and pasted the high det map ( using Uprev) into the normal igntion map then re ran the car the car gave the same BHP/Torque figures. I then went ahead and retuned the Ignition and fuel map to allow the car to run safely on the 95 octane fuel , we ended up a few bhp and LB/FT down on a totaly stock car. We will gain the increased throttle response from the Uprev and the lifting of the RPM limit a little. Any questions ask away. Mark Quote Link to comment Share on other sites More sharing options...
ianphampton Posted October 3, 2011 Share Posted October 3, 2011 Mark I seem to recall that after you remapped my '05 roadster (UpRev and subsequently remapped again when you fitted the plenum spacer and the Berks) being told that she was mapped to run on 95. Maybe my recollection is off but I think I was informed that there was no point in feeding her the higher Octane fuel now she was set up for the 95, as any benefits would be transient when the ECU learned the higher octane settings - Please put my mind at rest - am I OK running on 95? Quote Link to comment Share on other sites More sharing options...
Mark@Abbey m/s Posted October 3, 2011 Author Share Posted October 3, 2011 Ian, I would need to check but I don't seem to remember being told your car was running 95 octane fuel. We always ask customers what fuel they have in the car before we tune. I will have a look tomorrow and give you a ring/email. Mark Quote Link to comment Share on other sites More sharing options...
Mark@Abbey m/s Posted October 12, 2011 Author Share Posted October 12, 2011 My cars done over a 1000 miles running on Unleaded without any problems. Been thinking on a price to do the Reflash via a postal service; Would this be good for you Guys? £300-00 inc vat and postage No Dyno time. Mark Quote Link to comment Share on other sites More sharing options...
Chris`I Posted October 12, 2011 Share Posted October 12, 2011 Attached are some dyno plots from the DE car tuned ont he dyno ( my own car) totally stock Stock map doesnt look happy on 95RON when you get upto 5k RPM does it, looks to go a but haywire. Is that it winding back the timing for knock? Quote Link to comment Share on other sites More sharing options...
Mark@Abbey m/s Posted October 13, 2011 Author Share Posted October 13, 2011 Stock DE only has Knock control up to 4800rpm after that no knock control; The dyno plot you mention Chris running 98 octane map with 95 Octane map the car is detonating over 5000rpm thats why the dyno plot is going haywire. Quote Link to comment Share on other sites More sharing options...
Chris`I Posted October 13, 2011 Share Posted October 13, 2011 The dyno plot you mention Chris running 98 octane map with 95 Octane map the car is detonating over 5000rpm thats why the dyno plot is going haywire. So in relation to the other threads currently hot on the topic of running 95RON in a stock car - this shows that the car will get det if you rev it above 5k RPM on 95RON fuel Quote Link to comment Share on other sites More sharing options...
Mark@Abbey m/s Posted October 13, 2011 Author Share Posted October 13, 2011 Chris, from our datalogging on the dyno yes I think all cars running 95 octane with a stock map (98 Octane) may be seeing detonation. Mark Quote Link to comment Share on other sites More sharing options...
Chris`I Posted October 13, 2011 Share Posted October 13, 2011 Hope this serves a a pertinent warning to all members running 95RON fuel other than in an emergency (and mixed with higher grade). If you want to run 95RON and not get det, you need to get it UpRev'd! On that basis Mark, does that mean when you map for 95RON, you wind back the timing to start with to keep it safe before advancing it to a level just before you get det? Quote Link to comment Share on other sites More sharing options...
sparky370z Posted October 13, 2011 Share Posted October 13, 2011 for the extra pennies i WILL start using the super unleaded again. dont want any issues from using lower grade fuel. i'll get abbey to perform a full service on her ASAP too. Quote Link to comment Share on other sites More sharing options...
Dom187 Posted October 13, 2011 Share Posted October 13, 2011 Do the HR engines still only detect detonation up until 4800rpm? I have a HR which I always run on V power, I do often take the revs up to 7k rpm... Even with good fuel am I going be to hitting detonation? Is the engine going to go bang on me?!?! Quote Link to comment Share on other sites More sharing options...
bigsigh Posted October 13, 2011 Share Posted October 13, 2011 if the stock ecu doesnt like unleaded, would it not be more cost effective to ditch it and plumb in another pnp unit ? Something like megasquirt, adaptronic or aem ? then spend time on the rollers for a good tune Quote Link to comment Share on other sites More sharing options...
Chris`I Posted October 14, 2011 Share Posted October 14, 2011 if the stock ecu doesnt like unleaded, would it not be more cost effective to ditch it and plumb in another pnp unit ?Something like megasquirt, adaptronic or aem ? then spend time on the rollers for a good tune How much are they though? Mark has put a lot of work into a good map using UpRev which allows you to properly tune the ECU and keep all the stock features. All for £300 for a stock map or ~£400 inc some dyno time. Dont think you will get better than that TBH. Quote Link to comment Share on other sites More sharing options...
Mark@Abbey m/s Posted October 14, 2011 Author Share Posted October 14, 2011 You can fit a after market ECU if you want but for what most people want a stock remapped ECU works fine. You keep the cruise control,fly by wire,self diagnostic system. In my eyes the stock ECU is an awesome piece of kit especially as we can tune it. Quote Link to comment Share on other sites More sharing options...
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