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Pud237 · 02-04-2008

My car has a 'chip' fitted, actually its an inline mappable ECU but lets not get technical. The car won't run well on 95 RON anymore, as the chip has advanced the timing (retarded the spark) for ignition at a point in the engine's cycle that means the compression is higher. When the car was mapped it produced 25bhp more than the manufacturers claimed figures for the engine the car is fitted with. The car also has a BMC CDA induction kit fitted but minimal exhaust modifications. That's an 11% peak power gain.

Red Dot managed to get a 14.5% peak power gain on a 1.6 Twin Spark, taking it from its rolling road-measured 117bhp to 134bhp on the day.

So I think its fair to say there is quite some improvements that can be made on standard ECU settings with a bit of know-how.

02-04-2008	#15 (Post Link)
Pud237 AO Platinum Member Join Date: Apr 2006 Location: North Yorkshire Posts: 14,641 Member car: Alfa 156	Re: A Sensible Look At Tuning My car has a 'chip' fitted, actually its an inline mappable ECU but lets not get technical. The car won't run well on 95 RON anymore, as the chip has advanced the timing (retarded the spark) for ignition at a point in the engine's cycle that means the compression is higher. When the car was mapped it produced 25bhp more than the manufacturers claimed figures for the engine the car is fitted with. The car also has a BMC CDA induction kit fitted but minimal exhaust modifications. That's an 11% peak power gain. Red Dot managed to get a 14.5% peak power gain on a 1.6 Twin Spark, taking it from its rolling road-measured 117bhp to 134bhp on the day. So I think its fair to say there is quite some improvements that can be made on standard ECU settings with a bit of know-how. Weekend toy: Alfa 156 3.0 24v V6, Silver with red leather, Q2 diff, GTA Teledials, headlights & inlet manifold, AutoDelta carbon intake, BMC CDA, decat pipe and SuperSprint rear box, FK coilovers, Dastek Unichip - my 245bhp beast! Gone but not forgotten: Alfa 156 2.4 JTD Veloce, Vela Blu, Angel 'mad map' & BMC CDA, Ferodo DS2500s - the fastest tractor in town! AO 'Bratpacker' No 5.