Chris Perry Posted October 4, 2017 Share Posted October 4, 2017 Dear All,I am off to a rolling road tomorrow to have my 140 Sigma supersport re-mapped.Before i go, can anyone confirm what the caterham quoted max bhp and torque figures are please?I have found 140 bhp @ 7200 rpm and 120 lbs/ft @ 5790 on the net and blatchat.Can anyone confirm?Thanks,Chris Perry Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted October 4, 2017 Member Share Posted October 4, 2017 I find the names and specifications very hard to follow. But if the engine is a "Sigma 140" it's 140 bhp at 6,800 rpm and 125 lb ft at 4,100 rpm according to this 2014 Handbook.JonathanPS: The "Dyno-Plot" collection of measured power curves is "down for maintenance"... Link to comment Share on other sites More sharing options...
BigCol Posted October 4, 2017 Share Posted October 4, 2017 Would interested in what the re-map achieves Chris... so please do tell (and where/how much etc)! Link to comment Share on other sites More sharing options...
Chris Perry Posted October 5, 2017 Author Share Posted October 5, 2017 Dear All,Thanks for the replies.Today on the Northampton Motorsport rolling road my car made 143 bhp with 120 lbsft of torque.The max figures were no different to the standard Caterham 140 ecu and map but certainly my car now drives a lot better from lower down in the rev range now and idles a lot better than the standard Caterham ecu and map.They did comment i may be able to get more power if i used 98 octane fuel and cooler spark plugs.The standard Caterham ecu cannot be re-mapped and is locked. I was only able to re-map my car as i have brought a new MBE ecu.Hope the helps.Regards,Chris Perry Link to comment Share on other sites More sharing options...
ChrisC Posted October 5, 2017 Share Posted October 5, 2017 The locked ECU can be mapped, providing you have the code/software. That said I wouldn’t mind an unlocked ECU so I could make change myself. Link to comment Share on other sites More sharing options...
Tom_Arundel Posted October 8, 2017 Share Posted October 8, 2017 I would be interested to see your power figures Chris, I did some work on mine (sigma 140) and used the same rolling road. I did some work on the head and tried different cam timing and injectors but the best road setting seems to be std green injectors and 110 / 110 cam timing. Retarded inlet gives more top end (+3) but loses about 10 bhp in the middle so not worth doing. At the moment figs are:-RPM BHP2500 493000 623500 724000 854500 1015000 1146000 1366500 1427000 146Max power is 6800 - 7000rpm Max torque 123 1b ft @ 5500rpm Link to comment Share on other sites More sharing options...
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