slowcar Posted 26December, 2019 Report Share Posted 26December, 2019 Hi i am wanting to go to a Motec or equivalent EFI ITB system on my 3.2 -3.4 Twin plug race engine Anyone have one available to trade or sell I have 2 near new PMO complete carb systems 46 mm and 50 mm. Still on the car. Please Email me on john@poolcovers.com.au Cheers JW Quote Link to comment Share on other sites More sharing options...
Mike D'Silva Posted 26December, 2019 Report Share Posted 26December, 2019 @Mick Mick 1 Quote Link to comment Share on other sites More sharing options...
Skidmarks Posted 26December, 2019 Report Share Posted 26December, 2019 20 hours ago, slowcar said: Hi i am wanting to go to a Motec or equivalent EFI ITB system on my 3.2 -3.4 Twin plug race engine Anyone have one available to trade or sell I have 2 near new PMO complete carb systems 46 mm and 50 mm. Still on the car. Please Email me on john@poolcovers.com.au Cheers JW Not sure what you’re looking to achieve - I do love the ITB idea - but PMO’s properly set up will give you just as much punch. I use them on my race engine (twin plug 3.9) and they work just fine. Oldskl60 1 Quote Link to comment Share on other sites More sharing options...
Pork Chops Posted 27December, 2019 Report Share Posted 27December, 2019 5 hours ago, Skidmarks said: Not sure what you’re looking to achieve - I do love the ITB idea - but PMO’s properly set up will give you just as much punch. I use them on my race engine (twin plug 3.9) and they work just fine. WOT there is not much difference if any between carbs and EFI / ITB. However, everywhere else the latter is substantially better. No flat spots, no rich idle, no coughing, no need to warm them up, better fuel economy, much better area under the torque curve, better part throttle response and performance in the real world. As well you can have such things as barometric compensation and E85 flex tunes and probably more. So unless it's a race engine EFI / ITB is better. clutch-monkey 1 Quote Link to comment Share on other sites More sharing options...
Skidmarks Posted 27December, 2019 Report Share Posted 27December, 2019 2 hours ago, Pork Chops said: WOT there is not much difference if any between carbs and EFI / ITB. However, everywhere else the latter is substantially better. No flat spots, no rich idle, no coughing, no need to warm them up, better fuel economy, much better area under the torque curve, better part throttle response and performance in the real world. As well you can have such things as barometric compensation and E85 flex tunes and probably more. So unless it's a race engine EFI / ITB is better. All that’s very well but what if you love all that? All that smooth idle and fuel economy is for, well, safer not to say actually. Real motors only work between 5500 and 8000, the rest is just waiting ... Also, I’ve got barometric compensators built in. They struggle after a big curry but otherwise they’re bang on. Peter M 1 Quote Link to comment Share on other sites More sharing options...
James P Posted 27December, 2019 Report Share Posted 27December, 2019 On 26/12/2019 at 12:12, slowcar said: Hi i am wanting to go to a Motec or equivalent EFI ITB system on my 3.2 -3.4 Twin plug race engine Anyone have one available to trade or sell I have 2 near new PMO complete carb systems 46 mm and 50 mm. Still on the car. Please Email me on john@poolcovers.com.au Cheers JW PMO's will work fine in that application... Off topic.. John how are you going? hows my old white 996 cup car going? want to sell it back to me? James Quote Link to comment Share on other sites More sharing options...
clutch-monkey Posted 27December, 2019 Report Share Posted 27December, 2019 6 hours ago, Pork Chops said: WOT there is not much difference if any between carbs and EFI / ITB. However, everywhere else the latter is substantially better. No flat spots, no rich idle, no coughing, no need to warm them up, better fuel economy, much better area under the torque curve, better part throttle response and performance in the real world. As well you can have such things as barometric compensation and E85 flex tunes and probably more. So unless it's a race engine EFI / ITB is better. not to mention having safeguards set into the ECU etc. Quote Link to comment Share on other sites More sharing options...
slowcar Posted 28December, 2019 Author Report Share Posted 28December, 2019 The reasons i am looking at going to EFI ITBs is to be able to build safeguards in and tune for max output across the total range with better drive-ability at 12.5 to 13 ;1 compression in 35degree plus temps. .PMOs and MSD are great but very limited in tune options at all loads and revs. No lean or knock overrides other than lights and gauges on the dash that in the heat of helmet head are invisible until to late. Work in progress JW Mike D'Silva 1 Quote Link to comment Share on other sites More sharing options...
Gus Posted 31December, 2019 Report Share Posted 31December, 2019 Hi Slowcar, have you run your 46mm PMO back to back with your 50mm PMO on the same motor if so was there an improvement? interested as I have considered going bigger cheers Quote Link to comment Share on other sites More sharing options...
slowcar Posted 1January, 2020 Author Report Share Posted 1January, 2020 Hi Gus, I am going to run the 50 PMOs and the larger headers soon as i fit the Knocklink warning and lambda data log system. Cheers Quote Link to comment Share on other sites More sharing options...
Gus Posted 24March, 2020 Report Share Posted 24March, 2020 Hi Slow Car, I was just wondering if you have an update on fitting 50mm PMO’s ? would be very interested in what the results were? cheers Michael Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.