neil.cavanagh Posted February 7, 2007 Share Posted February 7, 2007 I have an '03 140bhp X-power 1.8 k series, running the standard ECU at the moment. I have a set of roller barrels, and a large valve ported head with piper 285H cams to install on to it. I will be procuring an Emerald ECU but this might take a month or so to arrive. So, as I'm an impatient bugger. can I 1) install roller barrels on current standard head and cams and run it with the standard ECU? 2) Intall ported head with 285s with standard plenum and ECU. 3) Install ported head, 285 cams and roller barrels and run on standard ECU. Basically, will the car run properly under either set up, or will it be too lean as it will be sucking in more air but with the ECU providing too little fuel?? Link to comment Share on other sites More sharing options...
mav Posted February 7, 2007 Share Posted February 7, 2007 I'd say: 1. No 2. No 3. No Link to comment Share on other sites More sharing options...
rj Posted February 7, 2007 Share Posted February 7, 2007 Second that Link to comment Share on other sites More sharing options...
John Howe Posted February 7, 2007 Share Posted February 7, 2007 No... Neil, about seven years ago, when I first fitted an Emerald, I had the odd issue with starting a semi-warm engine. When this happened I would plug the loom back into the ECU (which was still in situ) and the engine would bust into life, I then would switched back to the Emerald and started the car as normal. On one occasion I forgot to switch back to the Emerald, I started the car and tried to drive it - the expression three legged camel springs to mind. JH Deliveries by Saffron, the yellow 230bhp Sausage delivery machine Link to comment Share on other sites More sharing options...
Tony Whitley Posted February 7, 2007 Share Posted February 7, 2007 I tried running my MEMS with TBs figuring there was no real change except the number of throttles (same injectors, TPS, etc.) It ran. It made a nice noise. There was more power. I got something like 10 mpg Edited by - Tony Whitley on 7 Feb 2007 12:57:35 Link to comment Share on other sites More sharing options...
The Polisher Posted February 7, 2007 Share Posted February 7, 2007 I ran An identical spec of engine with a big valved and ported head for one season on the standard EU3 ecu before then fitting BP 285H cams and Jenvey throttle bodies along with an Emerald. It ran fine for that season with just a 'squeeze' of the fuel pressure regulator to incresae the fueling to match the improved breathing of the head. You could do the same. You will need to increase the fuel pressure from 3 to 4 bar and fit beige injectors when you fit the cams, roller barrels and Emerald anyway. Dave H. Mad about S77ENS Link to comment Share on other sites More sharing options...
rj Posted February 7, 2007 Share Posted February 7, 2007 I'd say doing this is bringing your engine at risk. If it runns too lean at high revs you may burn your valves / pistons If it runs rich you may wash off the oil film from the liners. Would you dare taking the risk? Link to comment Share on other sites More sharing options...
Mark Durrant Posted February 7, 2007 Share Posted February 7, 2007 Neil I suggest you wait for the Emerald to arrive and with all the snow that is about to drop out of the sky 140bhp will be more than enough Mark D Comp Sec Link to comment Share on other sites More sharing options...
Rob Walker Posted February 7, 2007 Share Posted February 7, 2007 Niel, I have an old 16 bit Emerald M3dk you can try/borrow/buy if thats any use? Failing that you could fit a an adjustable fuel pressure regulator and take the car to a rolling road do a fuelling check under load. It should be possible to make some basic fuel adjustments by eithetr increasing or decreasing fuel pressure. Rob Link to comment Share on other sites More sharing options...
oilyhands Posted February 7, 2007 Share Posted February 7, 2007 You will need to provide a vacuum line from the TBs to the ECU or it will have no idea of engine load, backing off the cam timing will provide a more stable MAP signal. oily Link to comment Share on other sites More sharing options...
neil.cavanagh Posted February 7, 2007 Author Share Posted February 7, 2007 Thanks Guys, I thought it wouldn't be easy peasey. Sounds like I need to book myself a slot with Oily and trundle up there with the car, new head, roller barrels and ECU and have him breath his magic.... Link to comment Share on other sites More sharing options...
Delberts Wallet Posted February 7, 2007 Share Posted February 7, 2007 Neil, I tried running TB's on a standard Supersport ECU and it was a no go. The engine ran but under load it wouldn't pull. I did run a ported head (light porting) with good results but what you suggest is way beyond what the MEM's can cope with. I've just changed to 1800 and can't get the MEM's to cope with that ☹️ Gareth Blue and Carbon 6 Speed 1.8 Supersport here Link to comment Share on other sites More sharing options...
GTD Posted February 8, 2007 Share Posted February 8, 2007 Neil Book Oily early - he's just kindly let me book the last day in March!! I think we need to raise a Club collection for Mrs Oily to recognise her forebearance! Who needed an LSD anyway? Link to comment Share on other sites More sharing options...
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