Mark Kindell Posted January 9, 2003 Share Posted January 9, 2003 Trying to get a Supra through sva at the mo! Its been fitted with a HKS t51 turbo and HKS f-con pro without cats ! Now ive put a center cat in but the f-con is keeping the co readings far to high still anyone know if i can just unplug the f-con and run it down to the sva center on its standerd ecu or will the f-con need to be reset i.e. lose its settings ect . I've not had a lot of time to get to know the f-con sys yet . Quote Link to comment Share on other sites More sharing options...
Alex Posted January 9, 2003 Share Posted January 9, 2003 How is it plugged in? Is it hard wired in? If so is there an off switch? Quote Link to comment Share on other sites More sharing options...
Mark Kindell Posted January 9, 2003 Author Share Posted January 9, 2003 No off switch that i can find and it just got a bridging type loom i.e. old loom plugs in one end then the loom from the f-con plugs into the old ecu ! Quote Link to comment Share on other sites More sharing options...
Alex Posted January 9, 2003 Share Posted January 9, 2003 You will have bigger injectors than stock for a T-51. Removing the FCON will result in the amount of fuel pumped in at idle is too much making it even worse. I think you are too far gone in the mods dept to just turn it off. I can only, in this case, recommend that you visit a tuner with enough expertise to re-tune the Fcon and lean off your mixture enough to pass the test. Though the fact its too rich suggests to me that its not setup properly. Is it the Fcon-S? Quote Link to comment Share on other sites More sharing options...
Mark Kindell Posted January 9, 2003 Author Share Posted January 9, 2003 Yep its the f-con s. Ist not my car just one i'm checking over for someone the thing is as far as i can tell its got stock injectors and fuel rail Also stock cams and pullys although it sounds like it has got uprated fuel pumps/pump ??? So i dont know if someone has taken bits off before shipping for example sounds runs and drive like stock cams and it has got stock pullys BUT the cam cover has got cut outs as if to show off uprated pullys Quote Link to comment Share on other sites More sharing options...
Alex Posted January 9, 2003 Share Posted January 9, 2003 Its been raped! You won't be able to SVA it until the fueling is checked and adjusted. If its not been bought yet then consider this. 1) The seller must get it tuned to what its got. 2) It'll probably cost 6-10k to replace all the parts needed to get the T-51 running at anything like decent power. Quote Link to comment Share on other sites More sharing options...
GavinL Posted January 9, 2003 Share Posted January 9, 2003 Originally posted by Alex Holdroyd Its been raped! You won't be able to SVA it until the fueling is checked and adjusted. If its not been bought yet then consider this. 1) The seller must get it tuned to what its got. 2) It'll probably cost 6-10k to replace all the parts needed to get the T-51 running at anything like decent power. 6-10K ? Quote Link to comment Share on other sites More sharing options...
Alex Posted January 9, 2003 Share Posted January 9, 2003 Engine internals? a stock bottom end on an 800hp turbo? Cams - full valve train - needs 8,000rpm really. Ported head Fuel System £1k Errmm Labour Clutch TRD Lsd I'm talking about getting the rest of the car into the sort of condition the Turbo deserves. Quote Link to comment Share on other sites More sharing options...
matt Posted January 9, 2003 Share Posted January 9, 2003 If it is disco'd / switched off won't the stock ECU adjust the closed loop running enough to get it thro' the emissions test? Ask Nathan ? Quote Link to comment Share on other sites More sharing options...
Alex Posted January 9, 2003 Share Posted January 9, 2003 Not sure....about the closed loop thing. But you'll have the same issue next year for the next mot....might as well sort it. Quote Link to comment Share on other sites More sharing options...
Mark Kindell Posted January 9, 2003 Author Share Posted January 9, 2003 Matt thats what i'm hoping i'll give it a try tomorrow and see what readings i get ! Quote Link to comment Share on other sites More sharing options...
matt Posted January 9, 2003 Share Posted January 9, 2003 I agree the thing needs sorting properly..... That was just a suggestion to get it thro' the test..... as per Marks question Quote Link to comment Share on other sites More sharing options...
Adam W Posted January 9, 2003 Share Posted January 9, 2003 Surely all it needs is a set of 720cc injectors, a decent pump (if it doesn't already have one) and a tuning session by someone who can work the F-Con. 800 american bhp = 600 english ones, and you don't NEED to run it flat out. I'd be a LOT more worried about how high it has been boosted on the crappy stock injectors! Quote Link to comment Share on other sites More sharing options...
Alex Posted January 9, 2003 Share Posted January 9, 2003 720's PAH!! This car has alot of question marks over it!!!!!! Quote Link to comment Share on other sites More sharing options...
Nathan Posted January 10, 2003 Share Posted January 10, 2003 Originally posted by Mark Kindell Yep its the f-con s. Ist not my car just one i'm checking over for someone the thing is as far as i can tell its got stock injectors and fuel rail Also stock cams and pullys although it sounds like it has got uprated fuel pumps/pump ??? So i dont know if someone has taken bits off before shipping for example sounds runs and drive like stock cams and it has got stock pullys BUT the cam cover has got cut outs as if to show off uprated pullys Hi Mark, If you are interested we can carry out whatever mapping work an F-Con 5/F-Con S requires. the only problem is that we are rammed for 6 weeks so if that is too long for you the only other places I can suggest are SAS or Abbey. As for fuelling, try and find out what the car has. If it is on stock injectors then it really needs to have some work done on it. We don't really use anything other than HKS 1000cc ones these days for big single/twin conversions. We now have several maps and can get them to idle virtually like a standard car. Best regards, Nathan TDI PLC Quote Link to comment Share on other sites More sharing options...
Matt C Posted January 10, 2003 Share Posted January 10, 2003 Originally posted by Alex Holdroyd Engine internals? a stock bottom end on an 800hp turbo? Cams - full valve train - needs 8,000rpm really. Ported head Fuel System £1k Errmm Labour Clutch TRD Lsd I'm talking about getting the rest of the car into the sort of condition the Turbo deserves. I'd be more concerned about getting the car to run right.....or should I say properly. If it goes through SVA pretty much as it is and then gets sent on to owner, it'll only last five minutes!! Especially if they turn up the boost and then start doing WOT runs. Quote Link to comment Share on other sites More sharing options...
Nathan Posted January 10, 2003 Share Posted January 10, 2003 Originally posted by matt If it is disco'd / switched off won't the stock ECU adjust the closed loop running enough to get it thro' the emissions test? Ask Nathan ? Sorry Matt, only just saw this.. It all depends on what injectors the car has. If it has stock injectors then yes the easiest thing to do it remove the F-Con from the equation which is simple. Take the F-con and loom out of the loop then just plug the OE loom directly into the OE ECU. Fit a cat and off you go. This assumes that the cat is indeed OK condition and the injectors are stock. As has been suggested, if the injectors are bigger then removing the F-Con will more than likely make the situation worse. I hear what you are saying about closed loop Matt but I very much doubt if the stock ECU will send a small enough signal to the injectors. Again, it all comes down to what size they are. I guess the thing is that it won't cost anything to try so give it a go! You won't do any damage. It IS possible you could pop the ECU if it does have bigger injectors without a resistor pack on there but keep the revs down (ie duty cycle) and you will be fine. Cheers, Nathan TDI PLC Quote Link to comment Share on other sites More sharing options...
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